113 lines
4.3 KiB
LLVM
113 lines
4.3 KiB
LLVM
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; REQUIRES: asserts
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -instcombine --debug-counter=assume-queries-counter-skip=0,assume-queries-counter-count=1 -S | FileCheck %s --check-prefixes=COUNTER1
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; RUN: opt < %s -instcombine --debug-counter=assume-queries-counter-skip=1,assume-queries-counter-count=6 -S | FileCheck %s --check-prefixes=COUNTER2
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; RUN: opt < %s -instcombine --debug-counter=assume-queries-counter-skip=6,assume-queries-counter-count=1 -S | FileCheck %s --check-prefixes=COUNTER3
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declare i1 @get_val()
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declare void @llvm.assume(i1)
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define dso_local i1 @test1(i32* readonly %0) {
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; COUNTER1-LABEL: @test1(
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; COUNTER1-NEXT: call void @llvm.assume(i1 true) [ "nonnull"(i32* [[TMP0:%.*]]) ]
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; COUNTER1-NEXT: ret i1 false
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;
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; COUNTER2-LABEL: @test1(
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; COUNTER2-NEXT: call void @llvm.assume(i1 true) [ "nonnull"(i32* [[TMP0:%.*]]) ]
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; COUNTER2-NEXT: [[TMP2:%.*]] = icmp eq i32* [[TMP0]], null
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; COUNTER2-NEXT: ret i1 [[TMP2]]
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;
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; COUNTER3-LABEL: @test1(
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; COUNTER3-NEXT: call void @llvm.assume(i1 true) [ "nonnull"(i32* [[TMP0:%.*]]) ]
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; COUNTER3-NEXT: [[TMP2:%.*]] = icmp eq i32* [[TMP0]], null
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; COUNTER3-NEXT: ret i1 [[TMP2]]
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;
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call void @llvm.assume(i1 true) ["nonnull"(i32* %0)]
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%2 = icmp eq i32* %0, null
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ret i1 %2
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}
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define dso_local i1 @test2(i32* readonly %0) {
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; COUNTER1-LABEL: @test2(
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; COUNTER1-NEXT: [[TMP2:%.*]] = icmp eq i32* [[TMP0:%.*]], null
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; COUNTER1-NEXT: call void @llvm.assume(i1 true) [ "nonnull"(i32* [[TMP0]]) ]
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; COUNTER1-NEXT: ret i1 [[TMP2]]
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;
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; COUNTER2-LABEL: @test2(
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; COUNTER2-NEXT: call void @llvm.assume(i1 true) [ "nonnull"(i32* [[TMP0:%.*]]) ]
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; COUNTER2-NEXT: ret i1 false
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;
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; COUNTER3-LABEL: @test2(
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; COUNTER3-NEXT: [[TMP2:%.*]] = icmp eq i32* [[TMP0:%.*]], null
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; COUNTER3-NEXT: call void @llvm.assume(i1 true) [ "nonnull"(i32* [[TMP0]]) ]
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; COUNTER3-NEXT: ret i1 [[TMP2]]
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;
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%2 = icmp eq i32* %0, null
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call void @llvm.assume(i1 true) ["nonnull"(i32* %0)]
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ret i1 %2
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}
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define dso_local i32 @test4(i32* readonly %0, i1 %cond) {
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; COUNTER1-LABEL: @test4(
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; COUNTER1-NEXT: call void @llvm.assume(i1 true) [ "dereferenceable"(i32* [[TMP0:%.*]], i32 4) ]
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; COUNTER1-NEXT: br i1 [[COND:%.*]], label [[A:%.*]], label [[B:%.*]]
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; COUNTER1: B:
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; COUNTER1-NEXT: br label [[A]]
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; COUNTER1: A:
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; COUNTER1-NEXT: [[TMP2:%.*]] = icmp eq i32* [[TMP0]], null
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; COUNTER1-NEXT: br i1 [[TMP2]], label [[TMP5:%.*]], label [[TMP3:%.*]]
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; COUNTER1: 3:
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; COUNTER1-NEXT: [[TMP4:%.*]] = load i32, i32* [[TMP0]], align 4
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; COUNTER1-NEXT: br label [[TMP5]]
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; COUNTER1: 5:
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; COUNTER1-NEXT: [[TMP6:%.*]] = phi i32 [ [[TMP4]], [[TMP3]] ], [ 0, [[A]] ]
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; COUNTER1-NEXT: ret i32 [[TMP6]]
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;
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; COUNTER2-LABEL: @test4(
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; COUNTER2-NEXT: call void @llvm.assume(i1 true) [ "dereferenceable"(i32* [[TMP0:%.*]], i32 4) ]
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; COUNTER2-NEXT: br i1 [[COND:%.*]], label [[A:%.*]], label [[B:%.*]]
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; COUNTER2: B:
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; COUNTER2-NEXT: br label [[A]]
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; COUNTER2: A:
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; COUNTER2-NEXT: br i1 false, label [[TMP4:%.*]], label [[TMP2:%.*]]
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; COUNTER2: 2:
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; COUNTER2-NEXT: [[TMP3:%.*]] = load i32, i32* [[TMP0]], align 4
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; COUNTER2-NEXT: br label [[TMP4]]
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; COUNTER2: 4:
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; COUNTER2-NEXT: [[TMP5:%.*]] = phi i32 [ [[TMP3]], [[TMP2]] ], [ 0, [[A]] ]
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; COUNTER2-NEXT: ret i32 [[TMP5]]
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;
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; COUNTER3-LABEL: @test4(
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; COUNTER3-NEXT: call void @llvm.assume(i1 true) [ "dereferenceable"(i32* [[TMP0:%.*]], i32 4) ]
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; COUNTER3-NEXT: br i1 [[COND:%.*]], label [[A:%.*]], label [[B:%.*]]
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; COUNTER3: B:
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; COUNTER3-NEXT: br label [[A]]
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; COUNTER3: A:
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; COUNTER3-NEXT: br i1 false, label [[TMP4:%.*]], label [[TMP2:%.*]]
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; COUNTER3: 2:
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; COUNTER3-NEXT: [[TMP3:%.*]] = load i32, i32* [[TMP0]], align 4
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; COUNTER3-NEXT: br label [[TMP4]]
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; COUNTER3: 4:
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; COUNTER3-NEXT: [[TMP5:%.*]] = phi i32 [ [[TMP3]], [[TMP2]] ], [ 0, [[A]] ]
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; COUNTER3-NEXT: ret i32 [[TMP5]]
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;
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call void @llvm.assume(i1 true) ["dereferenceable"(i32* %0, i32 4)]
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br i1 %cond, label %A, label %B
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B:
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br label %A
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A:
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%2 = icmp eq i32* %0, null
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br i1 %2, label %5, label %3
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3: ; preds = %1
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%4 = load i32, i32* %0, align 4
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br label %5
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5: ; preds = %1, %3
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%6 = phi i32 [ %4, %3 ], [ 0, %A ]
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ret i32 %6
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}
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