864 lines
38 KiB
LLVM
864 lines
38 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes
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; RUN: opt -attributor -enable-new-pm=0 -attributor-manifest-internal -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=6 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_NPM,NOT_CGSCC_OPM,NOT_TUNIT_NPM,IS__TUNIT____,IS________OPM,IS__TUNIT_OPM
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; RUN: opt -aa-pipeline=basic-aa -passes=attributor -attributor-manifest-internal -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=6 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_OPM,NOT_CGSCC_NPM,NOT_TUNIT_OPM,IS__TUNIT____,IS________NPM,IS__TUNIT_NPM
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; RUN: opt -attributor-cgscc -enable-new-pm=0 -attributor-manifest-internal -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_NPM,IS__CGSCC____,IS________OPM,IS__CGSCC_OPM
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; RUN: opt -aa-pipeline=basic-aa -passes=attributor-cgscc -attributor-manifest-internal -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_OPM,IS__CGSCC____,IS________NPM,IS__CGSCC_NPM
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@g = global i32* null ; <i32**> [#uses=1]
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define i32* @c1(i32* %q) {
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; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone willreturn
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; IS__TUNIT____-LABEL: define {{[^@]+}}@c1
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; IS__TUNIT____-SAME: (i32* nofree readnone returned "no-capture-maybe-returned" [[Q:%.*]]) [[ATTR0:#.*]] {
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; IS__TUNIT____-NEXT: ret i32* [[Q]]
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;
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; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
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; IS__CGSCC____-LABEL: define {{[^@]+}}@c1
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; IS__CGSCC____-SAME: (i32* nofree readnone returned "no-capture-maybe-returned" [[Q:%.*]]) [[ATTR0:#.*]] {
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; IS__CGSCC____-NEXT: ret i32* [[Q]]
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;
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ret i32* %q
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}
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; It would also be acceptable to mark %q as readnone. Update @c3 too.
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define void @c2(i32* %q) {
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; IS__TUNIT____: Function Attrs: nofree nosync nounwind willreturn writeonly
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; IS__TUNIT____-LABEL: define {{[^@]+}}@c2
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; IS__TUNIT____-SAME: (i32* nofree writeonly [[Q:%.*]]) [[ATTR1:#.*]] {
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; IS__TUNIT____-NEXT: store i32* [[Q]], i32** @g, align 8
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; IS__TUNIT____-NEXT: ret void
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;
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; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
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; IS__CGSCC____-LABEL: define {{[^@]+}}@c2
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; IS__CGSCC____-SAME: (i32* nofree writeonly [[Q:%.*]]) [[ATTR1:#.*]] {
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; IS__CGSCC____-NEXT: store i32* [[Q]], i32** @g, align 8
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; IS__CGSCC____-NEXT: ret void
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;
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store i32* %q, i32** @g
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ret void
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}
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define void @c3(i32* %q) {
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; IS__TUNIT____: Function Attrs: nofree nosync nounwind willreturn writeonly
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; IS__TUNIT____-LABEL: define {{[^@]+}}@c3
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; IS__TUNIT____-SAME: (i32* nofree writeonly [[Q:%.*]]) [[ATTR1]] {
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; IS__TUNIT____-NEXT: call void @c2(i32* nofree writeonly [[Q]]) [[ATTR1]]
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; IS__TUNIT____-NEXT: ret void
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;
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; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
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; IS__CGSCC____-LABEL: define {{[^@]+}}@c3
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; IS__CGSCC____-SAME: (i32* nofree writeonly [[Q:%.*]]) [[ATTR1]] {
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; IS__CGSCC____-NEXT: call void @c2(i32* nofree writeonly [[Q]]) [[ATTR17:#.*]]
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; IS__CGSCC____-NEXT: ret void
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;
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call void @c2(i32* %q)
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ret void
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}
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define i1 @c4(i32* %q, i32 %bitno) {
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; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone willreturn
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; IS__TUNIT____-LABEL: define {{[^@]+}}@c4
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; IS__TUNIT____-SAME: (i32* nofree readnone [[Q:%.*]], i32 [[BITNO:%.*]]) [[ATTR0]] {
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; IS__TUNIT____-NEXT: [[TMP:%.*]] = ptrtoint i32* [[Q]] to i32
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; IS__TUNIT____-NEXT: [[TMP2:%.*]] = lshr i32 [[TMP]], [[BITNO]]
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; IS__TUNIT____-NEXT: [[BIT:%.*]] = trunc i32 [[TMP2]] to i1
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; IS__TUNIT____-NEXT: br i1 [[BIT]], label [[L1:%.*]], label [[L0:%.*]]
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; IS__TUNIT____: l0:
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; IS__TUNIT____-NEXT: ret i1 false
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; IS__TUNIT____: l1:
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; IS__TUNIT____-NEXT: ret i1 true
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;
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; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
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; IS__CGSCC____-LABEL: define {{[^@]+}}@c4
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; IS__CGSCC____-SAME: (i32* nofree readnone [[Q:%.*]], i32 [[BITNO:%.*]]) [[ATTR0]] {
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; IS__CGSCC____-NEXT: [[TMP:%.*]] = ptrtoint i32* [[Q]] to i32
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; IS__CGSCC____-NEXT: [[TMP2:%.*]] = lshr i32 [[TMP]], [[BITNO]]
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; IS__CGSCC____-NEXT: [[BIT:%.*]] = trunc i32 [[TMP2]] to i1
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; IS__CGSCC____-NEXT: br i1 [[BIT]], label [[L1:%.*]], label [[L0:%.*]]
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; IS__CGSCC____: l0:
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; IS__CGSCC____-NEXT: ret i1 false
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; IS__CGSCC____: l1:
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; IS__CGSCC____-NEXT: ret i1 true
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;
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%tmp = ptrtoint i32* %q to i32
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%tmp2 = lshr i32 %tmp, %bitno
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%bit = trunc i32 %tmp2 to i1
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br i1 %bit, label %l1, label %l0
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l0:
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ret i1 0 ; escaping value not caught by def-use chaining.
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l1:
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ret i1 1 ; escaping value not caught by def-use chaining.
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}
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; c4b is c4 but without the escaping part
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define i1 @c4b(i32* %q, i32 %bitno) {
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; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone willreturn
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; IS__TUNIT____-LABEL: define {{[^@]+}}@c4b
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; IS__TUNIT____-SAME: (i32* nocapture nofree readnone [[Q:%.*]], i32 [[BITNO:%.*]]) [[ATTR0]] {
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; IS__TUNIT____-NEXT: [[TMP:%.*]] = ptrtoint i32* [[Q]] to i32
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; IS__TUNIT____-NEXT: [[TMP2:%.*]] = lshr i32 [[TMP]], [[BITNO]]
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; IS__TUNIT____-NEXT: [[BIT:%.*]] = trunc i32 [[TMP2]] to i1
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; IS__TUNIT____-NEXT: br i1 [[BIT]], label [[L1:%.*]], label [[L0:%.*]]
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; IS__TUNIT____: l0:
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; IS__TUNIT____-NEXT: ret i1 false
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; IS__TUNIT____: l1:
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; IS__TUNIT____-NEXT: ret i1 false
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;
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; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
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; IS__CGSCC____-LABEL: define {{[^@]+}}@c4b
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; IS__CGSCC____-SAME: (i32* nocapture nofree readnone [[Q:%.*]], i32 [[BITNO:%.*]]) [[ATTR0]] {
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; IS__CGSCC____-NEXT: [[TMP:%.*]] = ptrtoint i32* [[Q]] to i32
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; IS__CGSCC____-NEXT: [[TMP2:%.*]] = lshr i32 [[TMP]], [[BITNO]]
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; IS__CGSCC____-NEXT: [[BIT:%.*]] = trunc i32 [[TMP2]] to i1
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; IS__CGSCC____-NEXT: br i1 [[BIT]], label [[L1:%.*]], label [[L0:%.*]]
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; IS__CGSCC____: l0:
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; IS__CGSCC____-NEXT: ret i1 false
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; IS__CGSCC____: l1:
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; IS__CGSCC____-NEXT: ret i1 false
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;
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%tmp = ptrtoint i32* %q to i32
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%tmp2 = lshr i32 %tmp, %bitno
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%bit = trunc i32 %tmp2 to i1
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br i1 %bit, label %l1, label %l0
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l0:
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ret i1 0 ; not escaping!
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l1:
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ret i1 0 ; not escaping!
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}
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@lookup_table = global [2 x i1] [ i1 0, i1 1 ]
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define i1 @c5(i32* %q, i32 %bitno) {
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; IS__TUNIT____: Function Attrs: nofree nosync nounwind readonly willreturn
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; IS__TUNIT____-LABEL: define {{[^@]+}}@c5
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; IS__TUNIT____-SAME: (i32* nofree readonly [[Q:%.*]], i32 [[BITNO:%.*]]) [[ATTR2:#.*]] {
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; IS__TUNIT____-NEXT: [[TMP:%.*]] = ptrtoint i32* [[Q]] to i32
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; IS__TUNIT____-NEXT: [[TMP2:%.*]] = lshr i32 [[TMP]], [[BITNO]]
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; IS__TUNIT____-NEXT: [[BIT:%.*]] = and i32 [[TMP2]], 1
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; IS__TUNIT____-NEXT: [[LOOKUP:%.*]] = getelementptr [2 x i1], [2 x i1]* @lookup_table, i32 0, i32 [[BIT]]
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; IS__TUNIT____-NEXT: [[VAL:%.*]] = load i1, i1* [[LOOKUP]], align 1
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; IS__TUNIT____-NEXT: ret i1 [[VAL]]
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;
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; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readonly willreturn
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; IS__CGSCC____-LABEL: define {{[^@]+}}@c5
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; IS__CGSCC____-SAME: (i32* nofree readonly [[Q:%.*]], i32 [[BITNO:%.*]]) [[ATTR2:#.*]] {
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; IS__CGSCC____-NEXT: [[TMP:%.*]] = ptrtoint i32* [[Q]] to i32
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; IS__CGSCC____-NEXT: [[TMP2:%.*]] = lshr i32 [[TMP]], [[BITNO]]
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; IS__CGSCC____-NEXT: [[BIT:%.*]] = and i32 [[TMP2]], 1
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; IS__CGSCC____-NEXT: [[LOOKUP:%.*]] = getelementptr [2 x i1], [2 x i1]* @lookup_table, i32 0, i32 [[BIT]]
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; IS__CGSCC____-NEXT: [[VAL:%.*]] = load i1, i1* [[LOOKUP]], align 1
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; IS__CGSCC____-NEXT: ret i1 [[VAL]]
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;
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%tmp = ptrtoint i32* %q to i32
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%tmp2 = lshr i32 %tmp, %bitno
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%bit = and i32 %tmp2, 1
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; subtle escape mechanism follows
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%lookup = getelementptr [2 x i1], [2 x i1]* @lookup_table, i32 0, i32 %bit
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%val = load i1, i1* %lookup
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ret i1 %val
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}
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declare void @throw_if_bit_set(i8*, i8) readonly
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define i1 @c6(i8* %q, i8 %bit) personality i32 (...)* @__gxx_personality_v0 {
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; CHECK: Function Attrs: nounwind readonly
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; CHECK-LABEL: define {{[^@]+}}@c6
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; CHECK-SAME: (i8* readonly [[Q:%.*]], i8 [[BIT:%.*]]) [[ATTR4:#.*]] personality i32 (...)* @__gxx_personality_v0 {
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; CHECK-NEXT: invoke void @throw_if_bit_set(i8* readonly [[Q]], i8 [[BIT]]) [[ATTR3:#.*]]
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; CHECK-NEXT: to label [[RET0:%.*]] unwind label [[RET1:%.*]]
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; CHECK: ret0:
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; CHECK-NEXT: ret i1 false
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; CHECK: ret1:
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; CHECK-NEXT: [[EXN:%.*]] = landingpad { i8*, i32 }
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; CHECK-NEXT: cleanup
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; CHECK-NEXT: ret i1 true
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;
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invoke void @throw_if_bit_set(i8* %q, i8 %bit)
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to label %ret0 unwind label %ret1
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ret0:
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ret i1 0
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ret1:
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%exn = landingpad {i8*, i32}
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cleanup
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ret i1 1
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}
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declare i32 @__gxx_personality_v0(...)
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define i1* @lookup_bit(i32* %q, i32 %bitno) readnone nounwind {
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; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone willreturn
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; IS__TUNIT____-LABEL: define {{[^@]+}}@lookup_bit
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; IS__TUNIT____-SAME: (i32* nofree readnone [[Q:%.*]], i32 [[BITNO:%.*]]) [[ATTR0]] {
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; IS__TUNIT____-NEXT: [[TMP:%.*]] = ptrtoint i32* [[Q]] to i32
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; IS__TUNIT____-NEXT: [[TMP2:%.*]] = lshr i32 [[TMP]], [[BITNO]]
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; IS__TUNIT____-NEXT: [[BIT:%.*]] = and i32 [[TMP2]], 1
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; IS__TUNIT____-NEXT: [[LOOKUP:%.*]] = getelementptr [2 x i1], [2 x i1]* @lookup_table, i32 0, i32 [[BIT]]
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; IS__TUNIT____-NEXT: ret i1* [[LOOKUP]]
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;
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; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
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; IS__CGSCC____-LABEL: define {{[^@]+}}@lookup_bit
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; IS__CGSCC____-SAME: (i32* nofree readnone [[Q:%.*]], i32 [[BITNO:%.*]]) [[ATTR0]] {
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; IS__CGSCC____-NEXT: [[TMP:%.*]] = ptrtoint i32* [[Q]] to i32
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; IS__CGSCC____-NEXT: [[TMP2:%.*]] = lshr i32 [[TMP]], [[BITNO]]
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; IS__CGSCC____-NEXT: [[BIT:%.*]] = and i32 [[TMP2]], 1
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; IS__CGSCC____-NEXT: [[LOOKUP:%.*]] = getelementptr [2 x i1], [2 x i1]* @lookup_table, i32 0, i32 [[BIT]]
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; IS__CGSCC____-NEXT: ret i1* [[LOOKUP]]
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;
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%tmp = ptrtoint i32* %q to i32
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%tmp2 = lshr i32 %tmp, %bitno
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%bit = and i32 %tmp2, 1
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%lookup = getelementptr [2 x i1], [2 x i1]* @lookup_table, i32 0, i32 %bit
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ret i1* %lookup
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}
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define i1 @c7(i32* %q, i32 %bitno) {
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; IS__TUNIT____: Function Attrs: nofree nosync nounwind readonly willreturn
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; IS__TUNIT____-LABEL: define {{[^@]+}}@c7
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; IS__TUNIT____-SAME: (i32* nofree readonly [[Q:%.*]], i32 [[BITNO:%.*]]) [[ATTR2]] {
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; IS__TUNIT____-NEXT: [[PTR:%.*]] = call i1* @lookup_bit(i32* noalias nofree readnone [[Q]], i32 [[BITNO]]) [[ATTR15:#.*]]
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; IS__TUNIT____-NEXT: [[VAL:%.*]] = load i1, i1* [[PTR]], align 1
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; IS__TUNIT____-NEXT: ret i1 [[VAL]]
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;
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; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readonly willreturn
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; IS__CGSCC____-LABEL: define {{[^@]+}}@c7
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; IS__CGSCC____-SAME: (i32* nofree readonly [[Q:%.*]], i32 [[BITNO:%.*]]) [[ATTR2]] {
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; IS__CGSCC____-NEXT: [[PTR:%.*]] = call i1* @lookup_bit(i32* noalias nofree readnone [[Q]], i32 [[BITNO]]) [[ATTR18:#.*]]
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; IS__CGSCC____-NEXT: [[VAL:%.*]] = load i1, i1* [[PTR]], align 1
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; IS__CGSCC____-NEXT: ret i1 [[VAL]]
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;
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%ptr = call i1* @lookup_bit(i32* %q, i32 %bitno)
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%val = load i1, i1* %ptr
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ret i1 %val
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}
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define i32 @nc1(i32* %q, i32* %p, i1 %b) {
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; IS__TUNIT____: Function Attrs: nofree nosync nounwind willreturn
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; IS__TUNIT____-LABEL: define {{[^@]+}}@nc1
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; IS__TUNIT____-SAME: (i32* nofree [[Q:%.*]], i32* nocapture nofree [[P:%.*]], i1 [[B:%.*]]) [[ATTR5:#.*]] {
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; IS__TUNIT____-NEXT: e:
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; IS__TUNIT____-NEXT: br label [[L:%.*]]
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; IS__TUNIT____: l:
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; IS__TUNIT____-NEXT: [[X:%.*]] = phi i32* [ [[P]], [[E:%.*]] ]
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; IS__TUNIT____-NEXT: [[Y:%.*]] = phi i32* [ [[Q]], [[E]] ]
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; IS__TUNIT____-NEXT: [[TMP:%.*]] = bitcast i32* [[X]] to i32*
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; IS__TUNIT____-NEXT: [[TMP2:%.*]] = select i1 [[B]], i32* [[TMP]], i32* [[Y]]
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; IS__TUNIT____-NEXT: [[VAL:%.*]] = load i32, i32* [[TMP2]], align 4
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; IS__TUNIT____-NEXT: store i32 0, i32* [[TMP]], align 4
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|
|
; IS__TUNIT____-NEXT: store i32* [[Y]], i32** @g, align 8
|
||
|
|
; IS__TUNIT____-NEXT: ret i32 [[VAL]]
|
||
|
|
;
|
||
|
|
; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind willreturn
|
||
|
|
; IS__CGSCC____-LABEL: define {{[^@]+}}@nc1
|
||
|
|
; IS__CGSCC____-SAME: (i32* nofree [[Q:%.*]], i32* nocapture nofree [[P:%.*]], i1 [[B:%.*]]) [[ATTR5:#.*]] {
|
||
|
|
; IS__CGSCC____-NEXT: e:
|
||
|
|
; IS__CGSCC____-NEXT: br label [[L:%.*]]
|
||
|
|
; IS__CGSCC____: l:
|
||
|
|
; IS__CGSCC____-NEXT: [[X:%.*]] = phi i32* [ [[P]], [[E:%.*]] ]
|
||
|
|
; IS__CGSCC____-NEXT: [[Y:%.*]] = phi i32* [ [[Q]], [[E]] ]
|
||
|
|
; IS__CGSCC____-NEXT: [[TMP:%.*]] = bitcast i32* [[X]] to i32*
|
||
|
|
; IS__CGSCC____-NEXT: [[TMP2:%.*]] = select i1 [[B]], i32* [[TMP]], i32* [[Y]]
|
||
|
|
; IS__CGSCC____-NEXT: [[VAL:%.*]] = load i32, i32* [[TMP2]], align 4
|
||
|
|
; IS__CGSCC____-NEXT: store i32 0, i32* [[TMP]], align 4
|
||
|
|
; IS__CGSCC____-NEXT: store i32* [[Y]], i32** @g, align 8
|
||
|
|
; IS__CGSCC____-NEXT: ret i32 [[VAL]]
|
||
|
|
;
|
||
|
|
e:
|
||
|
|
br label %l
|
||
|
|
l:
|
||
|
|
%x = phi i32* [ %p, %e ]
|
||
|
|
%y = phi i32* [ %q, %e ]
|
||
|
|
%tmp = bitcast i32* %x to i32* ; <i32*> [#uses=2]
|
||
|
|
%tmp2 = select i1 %b, i32* %tmp, i32* %y
|
||
|
|
%val = load i32, i32* %tmp2 ; <i32> [#uses=1]
|
||
|
|
store i32 0, i32* %tmp
|
||
|
|
store i32* %y, i32** @g
|
||
|
|
ret i32 %val
|
||
|
|
}
|
||
|
|
|
||
|
|
define i32 @nc1_addrspace(i32* %q, i32 addrspace(1)* %p, i1 %b) {
|
||
|
|
; IS__TUNIT____: Function Attrs: nofree nosync nounwind willreturn
|
||
|
|
; IS__TUNIT____-LABEL: define {{[^@]+}}@nc1_addrspace
|
||
|
|
; IS__TUNIT____-SAME: (i32* nofree [[Q:%.*]], i32 addrspace(1)* nocapture nofree [[P:%.*]], i1 [[B:%.*]]) [[ATTR5]] {
|
||
|
|
; IS__TUNIT____-NEXT: e:
|
||
|
|
; IS__TUNIT____-NEXT: br label [[L:%.*]]
|
||
|
|
; IS__TUNIT____: l:
|
||
|
|
; IS__TUNIT____-NEXT: [[X:%.*]] = phi i32 addrspace(1)* [ [[P]], [[E:%.*]] ]
|
||
|
|
; IS__TUNIT____-NEXT: [[Y:%.*]] = phi i32* [ [[Q]], [[E]] ]
|
||
|
|
; IS__TUNIT____-NEXT: [[TMP:%.*]] = addrspacecast i32 addrspace(1)* [[X]] to i32*
|
||
|
|
; IS__TUNIT____-NEXT: [[TMP2:%.*]] = select i1 [[B]], i32* [[TMP]], i32* [[Y]]
|
||
|
|
; IS__TUNIT____-NEXT: [[VAL:%.*]] = load i32, i32* [[TMP2]], align 4
|
||
|
|
; IS__TUNIT____-NEXT: store i32 0, i32* [[TMP]], align 4
|
||
|
|
; IS__TUNIT____-NEXT: store i32* [[Y]], i32** @g, align 8
|
||
|
|
; IS__TUNIT____-NEXT: ret i32 [[VAL]]
|
||
|
|
;
|
||
|
|
; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind willreturn
|
||
|
|
; IS__CGSCC____-LABEL: define {{[^@]+}}@nc1_addrspace
|
||
|
|
; IS__CGSCC____-SAME: (i32* nofree [[Q:%.*]], i32 addrspace(1)* nocapture nofree [[P:%.*]], i1 [[B:%.*]]) [[ATTR5]] {
|
||
|
|
; IS__CGSCC____-NEXT: e:
|
||
|
|
; IS__CGSCC____-NEXT: br label [[L:%.*]]
|
||
|
|
; IS__CGSCC____: l:
|
||
|
|
; IS__CGSCC____-NEXT: [[X:%.*]] = phi i32 addrspace(1)* [ [[P]], [[E:%.*]] ]
|
||
|
|
; IS__CGSCC____-NEXT: [[Y:%.*]] = phi i32* [ [[Q]], [[E]] ]
|
||
|
|
; IS__CGSCC____-NEXT: [[TMP:%.*]] = addrspacecast i32 addrspace(1)* [[X]] to i32*
|
||
|
|
; IS__CGSCC____-NEXT: [[TMP2:%.*]] = select i1 [[B]], i32* [[TMP]], i32* [[Y]]
|
||
|
|
; IS__CGSCC____-NEXT: [[VAL:%.*]] = load i32, i32* [[TMP2]], align 4
|
||
|
|
; IS__CGSCC____-NEXT: store i32 0, i32* [[TMP]], align 4
|
||
|
|
; IS__CGSCC____-NEXT: store i32* [[Y]], i32** @g, align 8
|
||
|
|
; IS__CGSCC____-NEXT: ret i32 [[VAL]]
|
||
|
|
;
|
||
|
|
e:
|
||
|
|
br label %l
|
||
|
|
l:
|
||
|
|
%x = phi i32 addrspace(1)* [ %p, %e ]
|
||
|
|
%y = phi i32* [ %q, %e ]
|
||
|
|
%tmp = addrspacecast i32 addrspace(1)* %x to i32* ; <i32*> [#uses=2]
|
||
|
|
%tmp2 = select i1 %b, i32* %tmp, i32* %y
|
||
|
|
%val = load i32, i32* %tmp2 ; <i32> [#uses=1]
|
||
|
|
store i32 0, i32* %tmp
|
||
|
|
store i32* %y, i32** @g
|
||
|
|
ret i32 %val
|
||
|
|
}
|
||
|
|
|
||
|
|
define void @nc2(i32* %p, i32* %q) {
|
||
|
|
; IS__TUNIT____: Function Attrs: nofree nosync nounwind willreturn
|
||
|
|
; IS__TUNIT____-LABEL: define {{[^@]+}}@nc2
|
||
|
|
; IS__TUNIT____-SAME: (i32* nocapture nofree [[P:%.*]], i32* nofree [[Q:%.*]]) [[ATTR5]] {
|
||
|
|
; IS__TUNIT____-NEXT: [[TMP1:%.*]] = call i32 @nc1(i32* nofree [[Q]], i32* nocapture nofree [[P]], i1 noundef false) [[ATTR5]]
|
||
|
|
; IS__TUNIT____-NEXT: ret void
|
||
|
|
;
|
||
|
|
; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind willreturn
|
||
|
|
; IS__CGSCC____-LABEL: define {{[^@]+}}@nc2
|
||
|
|
; IS__CGSCC____-SAME: (i32* nocapture nofree [[P:%.*]], i32* nofree [[Q:%.*]]) [[ATTR5]] {
|
||
|
|
; IS__CGSCC____-NEXT: [[TMP1:%.*]] = call i32 @nc1(i32* nofree [[Q]], i32* nocapture nofree [[P]], i1 noundef false) [[ATTR14:#.*]]
|
||
|
|
; IS__CGSCC____-NEXT: ret void
|
||
|
|
;
|
||
|
|
%1 = call i32 @nc1(i32* %q, i32* %p, i1 0) ; <i32> [#uses=0]
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
define void @nc3(void ()* %p) {
|
||
|
|
; CHECK-LABEL: define {{[^@]+}}@nc3
|
||
|
|
; CHECK-SAME: (void ()* nocapture nofree nonnull [[P:%.*]]) {
|
||
|
|
; CHECK-NEXT: call void [[P]]()
|
||
|
|
; CHECK-NEXT: ret void
|
||
|
|
;
|
||
|
|
call void %p()
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
; The following test is tricky because improvements to AAIsDead can cause the call to be removed.
|
||
|
|
; FIXME: readonly and nocapture missing on the pointer.
|
||
|
|
declare void @external(i8* readonly) nounwind argmemonly
|
||
|
|
define void @nc4(i8* %p) {
|
||
|
|
; IS__TUNIT____: Function Attrs: argmemonly nounwind
|
||
|
|
; IS__TUNIT____-LABEL: define {{[^@]+}}@nc4
|
||
|
|
; IS__TUNIT____-SAME: (i8* [[P:%.*]]) [[ATTR6:#.*]] {
|
||
|
|
; IS__TUNIT____-NEXT: call void @external(i8* readonly [[P]]) [[ATTR16:#.*]]
|
||
|
|
; IS__TUNIT____-NEXT: ret void
|
||
|
|
;
|
||
|
|
; IS__CGSCC____: Function Attrs: argmemonly nounwind
|
||
|
|
; IS__CGSCC____-LABEL: define {{[^@]+}}@nc4
|
||
|
|
; IS__CGSCC____-SAME: (i8* [[P:%.*]]) [[ATTR6:#.*]] {
|
||
|
|
; IS__CGSCC____-NEXT: call void @external(i8* readonly [[P]]) [[ATTR19:#.*]]
|
||
|
|
; IS__CGSCC____-NEXT: ret void
|
||
|
|
;
|
||
|
|
call void @external(i8* %p)
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
define void @nc5(void (i8*)* %f, i8* %p) {
|
||
|
|
; CHECK-LABEL: define {{[^@]+}}@nc5
|
||
|
|
; CHECK-SAME: (void (i8*)* nocapture nofree nonnull [[F:%.*]], i8* nocapture [[P:%.*]]) {
|
||
|
|
; CHECK-NEXT: call void [[F]](i8* nocapture [[P]])
|
||
|
|
; CHECK-NEXT: ret void
|
||
|
|
;
|
||
|
|
call void %f(i8* %p) readonly nounwind
|
||
|
|
call void %f(i8* nocapture %p)
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
; It would be acceptable to add readnone to %y1_1 and %y1_2.
|
||
|
|
define void @test1_1(i8* %x1_1, i8* %y1_1, i1 %c) {
|
||
|
|
; CHECK: Function Attrs: nofree nosync nounwind writeonly
|
||
|
|
; CHECK-LABEL: define {{[^@]+}}@test1_1
|
||
|
|
; CHECK-SAME: (i8* nocapture nofree readnone [[X1_1:%.*]], i8* nocapture nofree readnone [[Y1_1:%.*]], i1 [[C:%.*]]) [[ATTR7:#.*]] {
|
||
|
|
; CHECK-NEXT: [[TMP1:%.*]] = call i8* @test1_2(i8* noalias nocapture nofree readnone undef, i8* noalias nofree readnone "no-capture-maybe-returned" [[Y1_1]], i1 [[C]]) [[ATTR7]]
|
||
|
|
; CHECK-NEXT: store i32* null, i32** @g, align 8
|
||
|
|
; CHECK-NEXT: ret void
|
||
|
|
;
|
||
|
|
call i8* @test1_2(i8* %x1_1, i8* %y1_1, i1 %c)
|
||
|
|
store i32* null, i32** @g
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
define i8* @test1_2(i8* %x1_2, i8* %y1_2, i1 %c) {
|
||
|
|
; IS________OPM: Function Attrs: nofree nosync nounwind writeonly
|
||
|
|
; IS________OPM-LABEL: define {{[^@]+}}@test1_2
|
||
|
|
; IS________OPM-SAME: (i8* nocapture nofree readnone [[X1_2:%.*]], i8* nofree readnone returned "no-capture-maybe-returned" [[Y1_2:%.*]], i1 [[C:%.*]]) [[ATTR7:#.*]] {
|
||
|
|
; IS________OPM-NEXT: br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
|
||
|
|
; IS________OPM: t:
|
||
|
|
; IS________OPM-NEXT: call void @test1_1(i8* noalias nocapture nofree readnone undef, i8* noalias nocapture nofree readnone [[Y1_2]], i1 [[C]]) [[ATTR7]]
|
||
|
|
; IS________OPM-NEXT: store i32* null, i32** @g, align 8
|
||
|
|
; IS________OPM-NEXT: br label [[F]]
|
||
|
|
; IS________OPM: f:
|
||
|
|
; IS________OPM-NEXT: ret i8* [[Y1_2]]
|
||
|
|
;
|
||
|
|
; IS________NPM: Function Attrs: nofree nosync nounwind writeonly
|
||
|
|
; IS________NPM-LABEL: define {{[^@]+}}@test1_2
|
||
|
|
; IS________NPM-SAME: (i8* nocapture nofree readnone [[X1_2:%.*]], i8* nofree readnone returned "no-capture-maybe-returned" [[Y1_2:%.*]], i1 [[C:%.*]]) [[ATTR7:#.*]] {
|
||
|
|
; IS________NPM-NEXT: br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
|
||
|
|
; IS________NPM: t:
|
||
|
|
; IS________NPM-NEXT: call void @test1_1(i8* noalias nocapture nofree readnone undef, i8* noalias nocapture nofree readnone [[Y1_2]], i1 noundef [[C]]) [[ATTR7]]
|
||
|
|
; IS________NPM-NEXT: store i32* null, i32** @g, align 8
|
||
|
|
; IS________NPM-NEXT: br label [[F]]
|
||
|
|
; IS________NPM: f:
|
||
|
|
; IS________NPM-NEXT: ret i8* [[Y1_2]]
|
||
|
|
;
|
||
|
|
br i1 %c, label %t, label %f
|
||
|
|
t:
|
||
|
|
call void @test1_1(i8* %x1_2, i8* %y1_2, i1 %c)
|
||
|
|
store i32* null, i32** @g
|
||
|
|
br label %f
|
||
|
|
f:
|
||
|
|
ret i8* %y1_2
|
||
|
|
}
|
||
|
|
|
||
|
|
define void @test2(i8* %x2) {
|
||
|
|
; IS__TUNIT____: Function Attrs: nofree noreturn nosync nounwind readnone willreturn
|
||
|
|
; IS__TUNIT____-LABEL: define {{[^@]+}}@test2
|
||
|
|
; IS__TUNIT____-SAME: (i8* nocapture nofree readnone [[X2:%.*]]) [[ATTR8:#.*]] {
|
||
|
|
; IS__TUNIT____-NEXT: unreachable
|
||
|
|
;
|
||
|
|
; IS__CGSCC____: Function Attrs: nofree norecurse noreturn nosync nounwind readnone willreturn
|
||
|
|
; IS__CGSCC____-LABEL: define {{[^@]+}}@test2
|
||
|
|
; IS__CGSCC____-SAME: (i8* nocapture nofree readnone [[X2:%.*]]) [[ATTR8:#.*]] {
|
||
|
|
; IS__CGSCC____-NEXT: unreachable
|
||
|
|
;
|
||
|
|
call void @test2(i8* %x2)
|
||
|
|
store i32* null, i32** @g
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
define void @test3(i8* %x3, i8* %y3, i8* %z3) {
|
||
|
|
; IS__TUNIT____: Function Attrs: nofree noreturn nosync nounwind readnone willreturn
|
||
|
|
; IS__TUNIT____-LABEL: define {{[^@]+}}@test3
|
||
|
|
; IS__TUNIT____-SAME: (i8* nocapture nofree readnone [[X3:%.*]], i8* nocapture nofree readnone [[Y3:%.*]], i8* nocapture nofree readnone [[Z3:%.*]]) [[ATTR8]] {
|
||
|
|
; IS__TUNIT____-NEXT: unreachable
|
||
|
|
;
|
||
|
|
; IS__CGSCC____: Function Attrs: nofree norecurse noreturn nosync nounwind readnone willreturn
|
||
|
|
; IS__CGSCC____-LABEL: define {{[^@]+}}@test3
|
||
|
|
; IS__CGSCC____-SAME: (i8* nocapture nofree readnone [[X3:%.*]], i8* nocapture nofree readnone [[Y3:%.*]], i8* nocapture nofree readnone [[Z3:%.*]]) [[ATTR8]] {
|
||
|
|
; IS__CGSCC____-NEXT: unreachable
|
||
|
|
;
|
||
|
|
call void @test3(i8* %z3, i8* %y3, i8* %x3)
|
||
|
|
store i32* null, i32** @g
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
define void @test4_1(i8* %x4_1, i1 %c) {
|
||
|
|
; CHECK: Function Attrs: nofree nosync nounwind writeonly
|
||
|
|
; CHECK-LABEL: define {{[^@]+}}@test4_1
|
||
|
|
; CHECK-SAME: (i8* nocapture nofree readnone [[X4_1:%.*]], i1 [[C:%.*]]) [[ATTR7]] {
|
||
|
|
; CHECK-NEXT: [[TMP1:%.*]] = call i8* @test4_2(i8* noalias nocapture nofree readnone undef, i8* noalias nofree readnone "no-capture-maybe-returned" [[X4_1]], i8* noalias nocapture nofree readnone undef, i1 [[C]]) [[ATTR7]]
|
||
|
|
; CHECK-NEXT: store i32* null, i32** @g, align 8
|
||
|
|
; CHECK-NEXT: ret void
|
||
|
|
;
|
||
|
|
call i8* @test4_2(i8* %x4_1, i8* %x4_1, i8* %x4_1, i1 %c)
|
||
|
|
store i32* null, i32** @g
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
define i8* @test4_2(i8* %x4_2, i8* %y4_2, i8* %z4_2, i1 %c) {
|
||
|
|
; IS________OPM: Function Attrs: nofree nosync nounwind writeonly
|
||
|
|
; IS________OPM-LABEL: define {{[^@]+}}@test4_2
|
||
|
|
; IS________OPM-SAME: (i8* nocapture nofree readnone [[X4_2:%.*]], i8* nofree readnone returned "no-capture-maybe-returned" [[Y4_2:%.*]], i8* nocapture nofree readnone [[Z4_2:%.*]], i1 [[C:%.*]]) [[ATTR7]] {
|
||
|
|
; IS________OPM-NEXT: br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
|
||
|
|
; IS________OPM: t:
|
||
|
|
; IS________OPM-NEXT: call void @test4_1(i8* noalias nocapture nofree noundef readnone align 536870912 null, i1 [[C]]) [[ATTR7]]
|
||
|
|
; IS________OPM-NEXT: store i32* null, i32** @g, align 8
|
||
|
|
; IS________OPM-NEXT: br label [[F]]
|
||
|
|
; IS________OPM: f:
|
||
|
|
; IS________OPM-NEXT: ret i8* [[Y4_2]]
|
||
|
|
;
|
||
|
|
; IS________NPM: Function Attrs: nofree nosync nounwind writeonly
|
||
|
|
; IS________NPM-LABEL: define {{[^@]+}}@test4_2
|
||
|
|
; IS________NPM-SAME: (i8* nocapture nofree readnone [[X4_2:%.*]], i8* nofree readnone returned "no-capture-maybe-returned" [[Y4_2:%.*]], i8* nocapture nofree readnone [[Z4_2:%.*]], i1 [[C:%.*]]) [[ATTR7]] {
|
||
|
|
; IS________NPM-NEXT: br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
|
||
|
|
; IS________NPM: t:
|
||
|
|
; IS________NPM-NEXT: call void @test4_1(i8* noalias nocapture nofree noundef readnone align 536870912 null, i1 noundef [[C]]) [[ATTR7]]
|
||
|
|
; IS________NPM-NEXT: store i32* null, i32** @g, align 8
|
||
|
|
; IS________NPM-NEXT: br label [[F]]
|
||
|
|
; IS________NPM: f:
|
||
|
|
; IS________NPM-NEXT: ret i8* [[Y4_2]]
|
||
|
|
;
|
||
|
|
br i1 %c, label %t, label %f
|
||
|
|
t:
|
||
|
|
call void @test4_1(i8* null, i1 %c)
|
||
|
|
store i32* null, i32** @g
|
||
|
|
br label %f
|
||
|
|
f:
|
||
|
|
ret i8* %y4_2
|
||
|
|
}
|
||
|
|
|
||
|
|
declare i8* @test5_1(i8* %x5_1)
|
||
|
|
|
||
|
|
define void @test5_2(i8* %x5_2) {
|
||
|
|
; CHECK-LABEL: define {{[^@]+}}@test5_2
|
||
|
|
; CHECK-SAME: (i8* [[X5_2:%.*]]) {
|
||
|
|
; CHECK-NEXT: [[TMP1:%.*]] = call i8* @test5_1(i8* [[X5_2]])
|
||
|
|
; CHECK-NEXT: store i32* null, i32** @g, align 8
|
||
|
|
; CHECK-NEXT: ret void
|
||
|
|
;
|
||
|
|
call i8* @test5_1(i8* %x5_2)
|
||
|
|
store i32* null, i32** @g
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
declare void @test6_1(i8* %x6_1, i8* nocapture %y6_1, ...)
|
||
|
|
|
||
|
|
define void @test6_2(i8* %x6_2, i8* %y6_2, i8* %z6_2) {
|
||
|
|
; CHECK-LABEL: define {{[^@]+}}@test6_2
|
||
|
|
; CHECK-SAME: (i8* [[X6_2:%.*]], i8* nocapture [[Y6_2:%.*]], i8* [[Z6_2:%.*]]) {
|
||
|
|
; CHECK-NEXT: call void (i8*, i8*, ...) @test6_1(i8* [[X6_2]], i8* nocapture [[Y6_2]], i8* [[Z6_2]])
|
||
|
|
; CHECK-NEXT: store i32* null, i32** @g, align 8
|
||
|
|
; CHECK-NEXT: ret void
|
||
|
|
;
|
||
|
|
call void (i8*, i8*, ...) @test6_1(i8* %x6_2, i8* %y6_2, i8* %z6_2)
|
||
|
|
store i32* null, i32** @g
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
define void @test_cmpxchg(i32* %p) {
|
||
|
|
; IS__TUNIT____: Function Attrs: argmemonly nofree nounwind willreturn
|
||
|
|
; IS__TUNIT____-LABEL: define {{[^@]+}}@test_cmpxchg
|
||
|
|
; IS__TUNIT____-SAME: (i32* nocapture nofree nonnull dereferenceable(4) [[P:%.*]]) [[ATTR9:#.*]] {
|
||
|
|
; IS__TUNIT____-NEXT: [[TMP1:%.*]] = cmpxchg i32* [[P]], i32 0, i32 1 acquire monotonic
|
||
|
|
; IS__TUNIT____-NEXT: ret void
|
||
|
|
;
|
||
|
|
; IS__CGSCC____: Function Attrs: argmemonly nofree norecurse nounwind willreturn
|
||
|
|
; IS__CGSCC____-LABEL: define {{[^@]+}}@test_cmpxchg
|
||
|
|
; IS__CGSCC____-SAME: (i32* nocapture nofree nonnull dereferenceable(4) [[P:%.*]]) [[ATTR9:#.*]] {
|
||
|
|
; IS__CGSCC____-NEXT: [[TMP1:%.*]] = cmpxchg i32* [[P]], i32 0, i32 1 acquire monotonic
|
||
|
|
; IS__CGSCC____-NEXT: ret void
|
||
|
|
;
|
||
|
|
cmpxchg i32* %p, i32 0, i32 1 acquire monotonic
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
define void @test_cmpxchg_ptr(i32** %p, i32* %q) {
|
||
|
|
; IS__TUNIT____: Function Attrs: argmemonly nofree nounwind willreturn
|
||
|
|
; IS__TUNIT____-LABEL: define {{[^@]+}}@test_cmpxchg_ptr
|
||
|
|
; IS__TUNIT____-SAME: (i32** nocapture nofree nonnull dereferenceable(8) [[P:%.*]], i32* nofree [[Q:%.*]]) [[ATTR9]] {
|
||
|
|
; IS__TUNIT____-NEXT: [[TMP1:%.*]] = cmpxchg i32** [[P]], i32* null, i32* [[Q]] acquire monotonic
|
||
|
|
; IS__TUNIT____-NEXT: ret void
|
||
|
|
;
|
||
|
|
; IS__CGSCC____: Function Attrs: argmemonly nofree norecurse nounwind willreturn
|
||
|
|
; IS__CGSCC____-LABEL: define {{[^@]+}}@test_cmpxchg_ptr
|
||
|
|
; IS__CGSCC____-SAME: (i32** nocapture nofree nonnull dereferenceable(8) [[P:%.*]], i32* nofree [[Q:%.*]]) [[ATTR9]] {
|
||
|
|
; IS__CGSCC____-NEXT: [[TMP1:%.*]] = cmpxchg i32** [[P]], i32* null, i32* [[Q]] acquire monotonic
|
||
|
|
; IS__CGSCC____-NEXT: ret void
|
||
|
|
;
|
||
|
|
cmpxchg i32** %p, i32* null, i32* %q acquire monotonic
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
define void @test_atomicrmw(i32* %p) {
|
||
|
|
; IS__TUNIT____: Function Attrs: argmemonly nofree nounwind willreturn
|
||
|
|
; IS__TUNIT____-LABEL: define {{[^@]+}}@test_atomicrmw
|
||
|
|
; IS__TUNIT____-SAME: (i32* nocapture nofree nonnull dereferenceable(4) [[P:%.*]]) [[ATTR9]] {
|
||
|
|
; IS__TUNIT____-NEXT: [[TMP1:%.*]] = atomicrmw add i32* [[P]], i32 1 seq_cst
|
||
|
|
; IS__TUNIT____-NEXT: ret void
|
||
|
|
;
|
||
|
|
; IS__CGSCC____: Function Attrs: argmemonly nofree norecurse nounwind willreturn
|
||
|
|
; IS__CGSCC____-LABEL: define {{[^@]+}}@test_atomicrmw
|
||
|
|
; IS__CGSCC____-SAME: (i32* nocapture nofree nonnull dereferenceable(4) [[P:%.*]]) [[ATTR9]] {
|
||
|
|
; IS__CGSCC____-NEXT: [[TMP1:%.*]] = atomicrmw add i32* [[P]], i32 1 seq_cst
|
||
|
|
; IS__CGSCC____-NEXT: ret void
|
||
|
|
;
|
||
|
|
atomicrmw add i32* %p, i32 1 seq_cst
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
define void @test_volatile(i32* %x) {
|
||
|
|
; IS__TUNIT____: Function Attrs: argmemonly nofree nounwind willreturn
|
||
|
|
; IS__TUNIT____-LABEL: define {{[^@]+}}@test_volatile
|
||
|
|
; IS__TUNIT____-SAME: (i32* nofree align 4 [[X:%.*]]) [[ATTR9]] {
|
||
|
|
; IS__TUNIT____-NEXT: entry:
|
||
|
|
; IS__TUNIT____-NEXT: [[GEP:%.*]] = getelementptr i32, i32* [[X]], i64 1
|
||
|
|
; IS__TUNIT____-NEXT: store volatile i32 0, i32* [[GEP]], align 4
|
||
|
|
; IS__TUNIT____-NEXT: ret void
|
||
|
|
;
|
||
|
|
; IS__CGSCC____: Function Attrs: argmemonly nofree norecurse nounwind willreturn
|
||
|
|
; IS__CGSCC____-LABEL: define {{[^@]+}}@test_volatile
|
||
|
|
; IS__CGSCC____-SAME: (i32* nofree align 4 [[X:%.*]]) [[ATTR9]] {
|
||
|
|
; IS__CGSCC____-NEXT: entry:
|
||
|
|
; IS__CGSCC____-NEXT: [[GEP:%.*]] = getelementptr i32, i32* [[X]], i64 1
|
||
|
|
; IS__CGSCC____-NEXT: store volatile i32 0, i32* [[GEP]], align 4
|
||
|
|
; IS__CGSCC____-NEXT: ret void
|
||
|
|
;
|
||
|
|
entry:
|
||
|
|
%gep = getelementptr i32, i32* %x, i64 1
|
||
|
|
store volatile i32 0, i32* %gep, align 4
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
define void @nocaptureLaunder(i8* %p) {
|
||
|
|
; IS__TUNIT____: Function Attrs: nofree nosync nounwind willreturn
|
||
|
|
; IS__TUNIT____-LABEL: define {{[^@]+}}@nocaptureLaunder
|
||
|
|
; IS__TUNIT____-SAME: (i8* nocapture nofree [[P:%.*]]) [[ATTR5]] {
|
||
|
|
; IS__TUNIT____-NEXT: entry:
|
||
|
|
; IS__TUNIT____-NEXT: [[B:%.*]] = call i8* @llvm.launder.invariant.group.p0i8(i8* nofree [[P]]) [[ATTR17:#.*]]
|
||
|
|
; IS__TUNIT____-NEXT: store i8 42, i8* [[B]], align 1
|
||
|
|
; IS__TUNIT____-NEXT: ret void
|
||
|
|
;
|
||
|
|
; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn
|
||
|
|
; IS__CGSCC____-LABEL: define {{[^@]+}}@nocaptureLaunder
|
||
|
|
; IS__CGSCC____-SAME: (i8* nocapture nofree [[P:%.*]]) [[ATTR10:#.*]] {
|
||
|
|
; IS__CGSCC____-NEXT: entry:
|
||
|
|
; IS__CGSCC____-NEXT: [[B:%.*]] = call i8* @llvm.launder.invariant.group.p0i8(i8* nofree [[P]]) [[ATTR18]]
|
||
|
|
; IS__CGSCC____-NEXT: store i8 42, i8* [[B]], align 1
|
||
|
|
; IS__CGSCC____-NEXT: ret void
|
||
|
|
;
|
||
|
|
entry:
|
||
|
|
%b = call i8* @llvm.launder.invariant.group.p0i8(i8* %p)
|
||
|
|
store i8 42, i8* %b
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
@g2 = global i8* null
|
||
|
|
define void @captureLaunder(i8* %p) {
|
||
|
|
; IS__TUNIT____: Function Attrs: nofree nosync nounwind willreturn
|
||
|
|
; IS__TUNIT____-LABEL: define {{[^@]+}}@captureLaunder
|
||
|
|
; IS__TUNIT____-SAME: (i8* nofree [[P:%.*]]) [[ATTR5]] {
|
||
|
|
; IS__TUNIT____-NEXT: [[B:%.*]] = call i8* @llvm.launder.invariant.group.p0i8(i8* nofree [[P]]) [[ATTR17]]
|
||
|
|
; IS__TUNIT____-NEXT: store i8* [[B]], i8** @g2, align 8
|
||
|
|
; IS__TUNIT____-NEXT: ret void
|
||
|
|
;
|
||
|
|
; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn
|
||
|
|
; IS__CGSCC____-LABEL: define {{[^@]+}}@captureLaunder
|
||
|
|
; IS__CGSCC____-SAME: (i8* nofree [[P:%.*]]) [[ATTR10]] {
|
||
|
|
; IS__CGSCC____-NEXT: [[B:%.*]] = call i8* @llvm.launder.invariant.group.p0i8(i8* nofree [[P]]) [[ATTR18]]
|
||
|
|
; IS__CGSCC____-NEXT: store i8* [[B]], i8** @g2, align 8
|
||
|
|
; IS__CGSCC____-NEXT: ret void
|
||
|
|
;
|
||
|
|
%b = call i8* @llvm.launder.invariant.group.p0i8(i8* %p)
|
||
|
|
store i8* %b, i8** @g2
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
define void @nocaptureStrip(i8* %p) {
|
||
|
|
; IS__TUNIT____: Function Attrs: nofree nosync nounwind willreturn writeonly
|
||
|
|
; IS__TUNIT____-LABEL: define {{[^@]+}}@nocaptureStrip
|
||
|
|
; IS__TUNIT____-SAME: (i8* nocapture nofree writeonly [[P:%.*]]) [[ATTR1]] {
|
||
|
|
; IS__TUNIT____-NEXT: entry:
|
||
|
|
; IS__TUNIT____-NEXT: [[B:%.*]] = call i8* @llvm.strip.invariant.group.p0i8(i8* noalias nofree readnone [[P]]) [[ATTR17]]
|
||
|
|
; IS__TUNIT____-NEXT: store i8 42, i8* [[B]], align 1
|
||
|
|
; IS__TUNIT____-NEXT: ret void
|
||
|
|
;
|
||
|
|
; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn writeonly
|
||
|
|
; IS__CGSCC____-LABEL: define {{[^@]+}}@nocaptureStrip
|
||
|
|
; IS__CGSCC____-SAME: (i8* nocapture nofree writeonly [[P:%.*]]) [[ATTR11:#.*]] {
|
||
|
|
; IS__CGSCC____-NEXT: entry:
|
||
|
|
; IS__CGSCC____-NEXT: [[B:%.*]] = call i8* @llvm.strip.invariant.group.p0i8(i8* noalias nofree readnone [[P]]) [[ATTR18]]
|
||
|
|
; IS__CGSCC____-NEXT: store i8 42, i8* [[B]], align 1
|
||
|
|
; IS__CGSCC____-NEXT: ret void
|
||
|
|
;
|
||
|
|
entry:
|
||
|
|
%b = call i8* @llvm.strip.invariant.group.p0i8(i8* %p)
|
||
|
|
store i8 42, i8* %b
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
@g3 = global i8* null
|
||
|
|
define void @captureStrip(i8* %p) {
|
||
|
|
; IS__TUNIT____: Function Attrs: nofree nosync nounwind willreturn writeonly
|
||
|
|
; IS__TUNIT____-LABEL: define {{[^@]+}}@captureStrip
|
||
|
|
; IS__TUNIT____-SAME: (i8* nofree writeonly [[P:%.*]]) [[ATTR1]] {
|
||
|
|
; IS__TUNIT____-NEXT: [[B:%.*]] = call i8* @llvm.strip.invariant.group.p0i8(i8* noalias nofree readnone [[P]]) [[ATTR17]]
|
||
|
|
; IS__TUNIT____-NEXT: store i8* [[B]], i8** @g3, align 8
|
||
|
|
; IS__TUNIT____-NEXT: ret void
|
||
|
|
;
|
||
|
|
; IS__CGSCC____: Function Attrs: nofree nosync nounwind willreturn writeonly
|
||
|
|
; IS__CGSCC____-LABEL: define {{[^@]+}}@captureStrip
|
||
|
|
; IS__CGSCC____-SAME: (i8* nofree writeonly [[P:%.*]]) [[ATTR11]] {
|
||
|
|
; IS__CGSCC____-NEXT: [[B:%.*]] = call i8* @llvm.strip.invariant.group.p0i8(i8* noalias nofree readnone [[P]]) [[ATTR18]]
|
||
|
|
; IS__CGSCC____-NEXT: store i8* [[B]], i8** @g3, align 8
|
||
|
|
; IS__CGSCC____-NEXT: ret void
|
||
|
|
;
|
||
|
|
%b = call i8* @llvm.strip.invariant.group.p0i8(i8* %p)
|
||
|
|
store i8* %b, i8** @g3
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
define i1 @captureICmp(i32* %x) {
|
||
|
|
; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone willreturn
|
||
|
|
; IS__TUNIT____-LABEL: define {{[^@]+}}@captureICmp
|
||
|
|
; IS__TUNIT____-SAME: (i32* nofree readnone [[X:%.*]]) [[ATTR0]] {
|
||
|
|
; IS__TUNIT____-NEXT: [[TMP1:%.*]] = icmp eq i32* [[X]], null
|
||
|
|
; IS__TUNIT____-NEXT: ret i1 [[TMP1]]
|
||
|
|
;
|
||
|
|
; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
|
||
|
|
; IS__CGSCC____-LABEL: define {{[^@]+}}@captureICmp
|
||
|
|
; IS__CGSCC____-SAME: (i32* nofree readnone [[X:%.*]]) [[ATTR0]] {
|
||
|
|
; IS__CGSCC____-NEXT: [[TMP1:%.*]] = icmp eq i32* [[X]], null
|
||
|
|
; IS__CGSCC____-NEXT: ret i1 [[TMP1]]
|
||
|
|
;
|
||
|
|
%1 = icmp eq i32* %x, null
|
||
|
|
ret i1 %1
|
||
|
|
}
|
||
|
|
|
||
|
|
define i1 @captureICmpRev(i32* %x) {
|
||
|
|
; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone willreturn
|
||
|
|
; IS__TUNIT____-LABEL: define {{[^@]+}}@captureICmpRev
|
||
|
|
; IS__TUNIT____-SAME: (i32* nofree readnone [[X:%.*]]) [[ATTR0]] {
|
||
|
|
; IS__TUNIT____-NEXT: [[TMP1:%.*]] = icmp eq i32* null, [[X]]
|
||
|
|
; IS__TUNIT____-NEXT: ret i1 [[TMP1]]
|
||
|
|
;
|
||
|
|
; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
|
||
|
|
; IS__CGSCC____-LABEL: define {{[^@]+}}@captureICmpRev
|
||
|
|
; IS__CGSCC____-SAME: (i32* nofree readnone [[X:%.*]]) [[ATTR0]] {
|
||
|
|
; IS__CGSCC____-NEXT: [[TMP1:%.*]] = icmp eq i32* null, [[X]]
|
||
|
|
; IS__CGSCC____-NEXT: ret i1 [[TMP1]]
|
||
|
|
;
|
||
|
|
%1 = icmp eq i32* null, %x
|
||
|
|
ret i1 %1
|
||
|
|
}
|
||
|
|
|
||
|
|
define i1 @nocaptureInboundsGEPICmp(i32* %x) {
|
||
|
|
; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone willreturn
|
||
|
|
; IS__TUNIT____-LABEL: define {{[^@]+}}@nocaptureInboundsGEPICmp
|
||
|
|
; IS__TUNIT____-SAME: (i32* nocapture nofree readnone [[X:%.*]]) [[ATTR0]] {
|
||
|
|
; IS__TUNIT____-NEXT: ret i1 false
|
||
|
|
;
|
||
|
|
; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
|
||
|
|
; IS__CGSCC____-LABEL: define {{[^@]+}}@nocaptureInboundsGEPICmp
|
||
|
|
; IS__CGSCC____-SAME: (i32* nocapture nofree readnone [[X:%.*]]) [[ATTR0]] {
|
||
|
|
; IS__CGSCC____-NEXT: ret i1 false
|
||
|
|
;
|
||
|
|
%1 = getelementptr inbounds i32, i32* %x, i32 5
|
||
|
|
%2 = bitcast i32* %1 to i8*
|
||
|
|
%3 = icmp eq i8* %2, null
|
||
|
|
ret i1 %3
|
||
|
|
}
|
||
|
|
|
||
|
|
define i1 @nocaptureInboundsGEPICmpRev(i32* %x) {
|
||
|
|
; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone willreturn
|
||
|
|
; IS__TUNIT____-LABEL: define {{[^@]+}}@nocaptureInboundsGEPICmpRev
|
||
|
|
; IS__TUNIT____-SAME: (i32* nocapture nofree readnone [[X:%.*]]) [[ATTR0]] {
|
||
|
|
; IS__TUNIT____-NEXT: ret i1 true
|
||
|
|
;
|
||
|
|
; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
|
||
|
|
; IS__CGSCC____-LABEL: define {{[^@]+}}@nocaptureInboundsGEPICmpRev
|
||
|
|
; IS__CGSCC____-SAME: (i32* nocapture nofree readnone [[X:%.*]]) [[ATTR0]] {
|
||
|
|
; IS__CGSCC____-NEXT: ret i1 true
|
||
|
|
;
|
||
|
|
%1 = getelementptr inbounds i32, i32* %x, i32 5
|
||
|
|
%2 = bitcast i32* %1 to i8*
|
||
|
|
%3 = icmp ne i8* null, %2
|
||
|
|
ret i1 %3
|
||
|
|
}
|
||
|
|
|
||
|
|
define i1 @nocaptureDereferenceableOrNullICmp(i32* dereferenceable_or_null(4) %x) {
|
||
|
|
; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone willreturn
|
||
|
|
; IS__TUNIT____-LABEL: define {{[^@]+}}@nocaptureDereferenceableOrNullICmp
|
||
|
|
; IS__TUNIT____-SAME: (i32* nocapture nofree readnone dereferenceable_or_null(4) [[X:%.*]]) [[ATTR0]] {
|
||
|
|
; IS__TUNIT____-NEXT: [[TMP1:%.*]] = bitcast i32* [[X]] to i8*
|
||
|
|
; IS__TUNIT____-NEXT: [[TMP2:%.*]] = icmp eq i8* [[TMP1]], null
|
||
|
|
; IS__TUNIT____-NEXT: ret i1 [[TMP2]]
|
||
|
|
;
|
||
|
|
; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
|
||
|
|
; IS__CGSCC____-LABEL: define {{[^@]+}}@nocaptureDereferenceableOrNullICmp
|
||
|
|
; IS__CGSCC____-SAME: (i32* nocapture nofree readnone dereferenceable_or_null(4) [[X:%.*]]) [[ATTR0]] {
|
||
|
|
; IS__CGSCC____-NEXT: [[TMP1:%.*]] = bitcast i32* [[X]] to i8*
|
||
|
|
; IS__CGSCC____-NEXT: [[TMP2:%.*]] = icmp eq i8* [[TMP1]], null
|
||
|
|
; IS__CGSCC____-NEXT: ret i1 [[TMP2]]
|
||
|
|
;
|
||
|
|
%1 = bitcast i32* %x to i8*
|
||
|
|
%2 = icmp eq i8* %1, null
|
||
|
|
ret i1 %2
|
||
|
|
}
|
||
|
|
|
||
|
|
define i1 @captureDereferenceableOrNullICmp(i32* dereferenceable_or_null(4) %x) null_pointer_is_valid {
|
||
|
|
; IS__TUNIT____: Function Attrs: nofree nosync nounwind null_pointer_is_valid readnone willreturn
|
||
|
|
; IS__TUNIT____-LABEL: define {{[^@]+}}@captureDereferenceableOrNullICmp
|
||
|
|
; IS__TUNIT____-SAME: (i32* nofree readnone dereferenceable_or_null(4) [[X:%.*]]) [[ATTR10:#.*]] {
|
||
|
|
; IS__TUNIT____-NEXT: [[TMP1:%.*]] = bitcast i32* [[X]] to i8*
|
||
|
|
; IS__TUNIT____-NEXT: [[TMP2:%.*]] = icmp eq i8* [[TMP1]], null
|
||
|
|
; IS__TUNIT____-NEXT: ret i1 [[TMP2]]
|
||
|
|
;
|
||
|
|
; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind null_pointer_is_valid readnone willreturn
|
||
|
|
; IS__CGSCC____-LABEL: define {{[^@]+}}@captureDereferenceableOrNullICmp
|
||
|
|
; IS__CGSCC____-SAME: (i32* nofree readnone dereferenceable_or_null(4) [[X:%.*]]) [[ATTR12:#.*]] {
|
||
|
|
; IS__CGSCC____-NEXT: [[TMP1:%.*]] = bitcast i32* [[X]] to i8*
|
||
|
|
; IS__CGSCC____-NEXT: [[TMP2:%.*]] = icmp eq i8* [[TMP1]], null
|
||
|
|
; IS__CGSCC____-NEXT: ret i1 [[TMP2]]
|
||
|
|
;
|
||
|
|
%1 = bitcast i32* %x to i8*
|
||
|
|
%2 = icmp eq i8* %1, null
|
||
|
|
ret i1 %2
|
||
|
|
}
|
||
|
|
|
||
|
|
declare void @unknown(i8*)
|
||
|
|
; We know that 'null' in AS 0 does not alias anything and cannot be captured. Though the latter is not qurried -> derived atm.
|
||
|
|
define void @test_callsite() {
|
||
|
|
; CHECK-LABEL: define {{[^@]+}}@test_callsite() {
|
||
|
|
; CHECK-NEXT: entry:
|
||
|
|
; CHECK-NEXT: call void @unknown(i8* noalias nocapture noundef align 536870912 null)
|
||
|
|
; CHECK-NEXT: ret void
|
||
|
|
;
|
||
|
|
entry:
|
||
|
|
call void @unknown(i8* null)
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
declare i8* @unknownpi8pi8(i8*,i8* returned)
|
||
|
|
define i8* @test_returned1(i8* %A, i8* returned %B) nounwind readonly {
|
||
|
|
; CHECK: Function Attrs: nounwind readonly
|
||
|
|
; CHECK-LABEL: define {{[^@]+}}@test_returned1
|
||
|
|
; CHECK-SAME: (i8* nocapture readonly [[A:%.*]], i8* readonly returned [[B:%.*]]) [[ATTR4]] {
|
||
|
|
; CHECK-NEXT: entry:
|
||
|
|
; CHECK-NEXT: [[P:%.*]] = call i8* @unknownpi8pi8(i8* [[A]], i8* [[B]])
|
||
|
|
; CHECK-NEXT: ret i8* [[P]]
|
||
|
|
;
|
||
|
|
entry:
|
||
|
|
%p = call i8* @unknownpi8pi8(i8* %A, i8* %B)
|
||
|
|
ret i8* %p
|
||
|
|
}
|
||
|
|
|
||
|
|
define i8* @test_returned2(i8* %A, i8* %B) {
|
||
|
|
; CHECK: Function Attrs: nounwind readonly
|
||
|
|
; CHECK-LABEL: define {{[^@]+}}@test_returned2
|
||
|
|
; CHECK-SAME: (i8* nocapture readonly [[A:%.*]], i8* readonly returned [[B:%.*]]) [[ATTR4]] {
|
||
|
|
; CHECK-NEXT: entry:
|
||
|
|
; CHECK-NEXT: [[P:%.*]] = call i8* @unknownpi8pi8(i8* readonly [[A]], i8* readonly [[B]]) [[ATTR4]]
|
||
|
|
; CHECK-NEXT: ret i8* [[P]]
|
||
|
|
;
|
||
|
|
entry:
|
||
|
|
%p = call i8* @unknownpi8pi8(i8* %A, i8* %B) nounwind readonly
|
||
|
|
ret i8* %p
|
||
|
|
}
|
||
|
|
|
||
|
|
declare i8* @maybe_returned_ptr(i8* readonly %ptr) readonly nounwind willreturn
|
||
|
|
declare i8 @maybe_returned_val(i8* %ptr) readonly nounwind willreturn
|
||
|
|
declare void @val_use(i8 %ptr) readonly nounwind willreturn
|
||
|
|
|
||
|
|
; FIXME: Both pointers should be nocapture
|
||
|
|
define void @ptr_uses(i8* %ptr, i8* %wptr) {
|
||
|
|
; CHECK: Function Attrs: nounwind willreturn
|
||
|
|
; CHECK-LABEL: define {{[^@]+}}@ptr_uses
|
||
|
|
; CHECK-SAME: (i8* [[PTR:%.*]], i8* nocapture nonnull writeonly dereferenceable(1) [[WPTR:%.*]]) [[ATTR14:#.*]] {
|
||
|
|
; CHECK-NEXT: store i8 0, i8* [[WPTR]], align 1
|
||
|
|
; CHECK-NEXT: ret void
|
||
|
|
;
|
||
|
|
%call_ptr = call i8* @maybe_returned_ptr(i8* %ptr)
|
||
|
|
%call_val = call i8 @maybe_returned_val(i8* %call_ptr)
|
||
|
|
call void @val_use(i8 %call_val)
|
||
|
|
store i8 0, i8* %wptr
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
declare i8* @llvm.launder.invariant.group.p0i8(i8*)
|
||
|
|
declare i8* @llvm.strip.invariant.group.p0i8(i8*)
|