283 lines
14 KiB
LLVM
283 lines
14 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -S -instcombine %s | FileCheck %s
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define <4 x i8> @add(<2 x i8> %a, <2 x i8> %b, <2 x i8> %c, <2 x i8> %d) {
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; CHECK-LABEL: @add(
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; CHECK-NEXT: [[TMP1:%.*]] = and <2 x i8> [[A:%.*]], [[C:%.*]]
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; CHECK-NEXT: [[TMP2:%.*]] = and <2 x i8> [[B:%.*]], [[D:%.*]]
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; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x i8> [[TMP1]], <2 x i8> [[TMP2]], <4 x i32> <i32 0, i32 1, i32 2, i32 3>
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; CHECK-NEXT: ret <4 x i8> [[R]]
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;
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%concat1 = shufflevector <2 x i8> %a, <2 x i8> %b, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
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%concat2 = shufflevector <2 x i8> %c, <2 x i8> %d, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
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%r = and <4 x i8> %concat1, %concat2
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ret <4 x i8> %r
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}
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; Flags should propagate.
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define <4 x i8> @sub(<2 x i8> %a, <2 x i8> %b, <2 x i8> %c, <2 x i8> %d) {
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; CHECK-LABEL: @sub(
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; CHECK-NEXT: [[TMP1:%.*]] = sub nsw <2 x i8> [[A:%.*]], [[C:%.*]]
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; CHECK-NEXT: [[TMP2:%.*]] = sub nsw <2 x i8> [[B:%.*]], [[D:%.*]]
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; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x i8> [[TMP1]], <2 x i8> [[TMP2]], <4 x i32> <i32 0, i32 1, i32 2, i32 3>
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; CHECK-NEXT: ret <4 x i8> [[R]]
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;
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%concat1 = shufflevector <2 x i8> %a, <2 x i8> %b, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
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%concat2 = shufflevector <2 x i8> %c, <2 x i8> %d, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
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%r = sub nsw <4 x i8> %concat1, %concat2
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ret <4 x i8> %r
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}
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; Flags should propagate.
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define <4 x i8> @mul(<2 x i8> %a, <2 x i8> %b, <2 x i8> %c, <2 x i8> %d) {
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; CHECK-LABEL: @mul(
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; CHECK-NEXT: [[TMP1:%.*]] = mul nuw <2 x i8> [[A:%.*]], [[C:%.*]]
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; CHECK-NEXT: [[TMP2:%.*]] = mul nuw <2 x i8> [[B:%.*]], [[D:%.*]]
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; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x i8> [[TMP1]], <2 x i8> [[TMP2]], <4 x i32> <i32 0, i32 1, i32 2, i32 3>
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; CHECK-NEXT: ret <4 x i8> [[R]]
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;
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%concat1 = shufflevector <2 x i8> %a, <2 x i8> %b, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
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%concat2 = shufflevector <2 x i8> %c, <2 x i8> %d, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
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%r = mul nuw <4 x i8> %concat1, %concat2
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ret <4 x i8> %r
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}
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; Undef in shuffle mask does not necessarily propagate.
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define <4 x i8> @and(<2 x i8> %a, <2 x i8> %b, <2 x i8> %c, <2 x i8> %d) {
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; CHECK-LABEL: @and(
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; CHECK-NEXT: [[CONCAT1:%.*]] = shufflevector <2 x i8> [[A:%.*]], <2 x i8> [[B:%.*]], <4 x i32> <i32 undef, i32 1, i32 2, i32 3>
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; CHECK-NEXT: [[CONCAT2:%.*]] = shufflevector <2 x i8> [[C:%.*]], <2 x i8> [[D:%.*]], <4 x i32> <i32 0, i32 1, i32 2, i32 3>
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; CHECK-NEXT: [[R:%.*]] = and <4 x i8> [[CONCAT1]], [[CONCAT2]]
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; CHECK-NEXT: ret <4 x i8> [[R]]
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;
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%concat1 = shufflevector <2 x i8> %a, <2 x i8> %b, <4 x i32> <i32 undef, i32 1, i32 2, i32 3>
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%concat2 = shufflevector <2 x i8> %c, <2 x i8> %d, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
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%r = and <4 x i8> %concat1, %concat2
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ret <4 x i8> %r
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}
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; Undef in shuffle mask does not necessarily propagate.
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define <4 x i8> @or(<2 x i8> %a, <2 x i8> %b, <2 x i8> %c, <2 x i8> %d) {
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; CHECK-LABEL: @or(
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; CHECK-NEXT: [[CONCAT1:%.*]] = shufflevector <2 x i8> [[A:%.*]], <2 x i8> [[B:%.*]], <4 x i32> <i32 0, i32 1, i32 2, i32 3>
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; CHECK-NEXT: [[CONCAT2:%.*]] = shufflevector <2 x i8> [[C:%.*]], <2 x i8> [[D:%.*]], <4 x i32> <i32 0, i32 undef, i32 2, i32 3>
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; CHECK-NEXT: [[R:%.*]] = or <4 x i8> [[CONCAT1]], [[CONCAT2]]
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; CHECK-NEXT: ret <4 x i8> [[R]]
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;
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%concat1 = shufflevector <2 x i8> %a, <2 x i8> %b, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
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%concat2 = shufflevector <2 x i8> %c, <2 x i8> %d, <4 x i32> <i32 0, i32 undef, i32 2, i32 3>
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%r = or <4 x i8> %concat1, %concat2
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ret <4 x i8> %r
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}
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; Undefs in shuffle mask do not necessarily propagate.
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define <4 x i8> @xor(<2 x i8> %a, <2 x i8> %b, <2 x i8> %c, <2 x i8> %d) {
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; CHECK-LABEL: @xor(
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; CHECK-NEXT: [[CONCAT1:%.*]] = shufflevector <2 x i8> [[A:%.*]], <2 x i8> [[B:%.*]], <4 x i32> <i32 0, i32 undef, i32 2, i32 3>
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; CHECK-NEXT: [[CONCAT2:%.*]] = shufflevector <2 x i8> [[C:%.*]], <2 x i8> [[D:%.*]], <4 x i32> <i32 0, i32 1, i32 undef, i32 3>
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; CHECK-NEXT: [[R:%.*]] = xor <4 x i8> [[CONCAT1]], [[CONCAT2]]
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; CHECK-NEXT: ret <4 x i8> [[R]]
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;
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%concat1 = shufflevector <2 x i8> %a, <2 x i8> %b, <4 x i32> <i32 0, i32 undef, i32 2, i32 3>
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%concat2 = shufflevector <2 x i8> %c, <2 x i8> %d, <4 x i32> <i32 0, i32 1, i32 undef, i32 3>
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%r = xor <4 x i8> %concat1, %concat2
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ret <4 x i8> %r
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}
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define <4 x i8> @shl(<2 x i8> %a, <2 x i8> %b, <2 x i8> %c, <2 x i8> %d) {
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; CHECK-LABEL: @shl(
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; CHECK-NEXT: [[TMP1:%.*]] = shl nuw <2 x i8> [[A:%.*]], [[C:%.*]]
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; CHECK-NEXT: [[TMP2:%.*]] = shl nuw <2 x i8> [[B:%.*]], [[D:%.*]]
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; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x i8> [[TMP1]], <2 x i8> [[TMP2]], <4 x i32> <i32 0, i32 1, i32 undef, i32 3>
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; CHECK-NEXT: ret <4 x i8> [[R]]
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;
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%concat1 = shufflevector <2 x i8> %a, <2 x i8> %b, <4 x i32> <i32 0, i32 1, i32 undef, i32 3>
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%concat2 = shufflevector <2 x i8> %c, <2 x i8> %d, <4 x i32> <i32 0, i32 1, i32 undef, i32 3>
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%r = shl nuw <4 x i8> %concat1, %concat2
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ret <4 x i8> %r
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}
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define <4 x i8> @lshr(<2 x i8> %a, <2 x i8> %b, <2 x i8> %c, <2 x i8> %d) {
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; CHECK-LABEL: @lshr(
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; CHECK-NEXT: [[TMP1:%.*]] = lshr exact <2 x i8> [[A:%.*]], [[C:%.*]]
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; CHECK-NEXT: [[TMP2:%.*]] = lshr exact <2 x i8> [[B:%.*]], [[D:%.*]]
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; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x i8> [[TMP1]], <2 x i8> [[TMP2]], <4 x i32> <i32 0, i32 undef, i32 undef, i32 3>
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; CHECK-NEXT: ret <4 x i8> [[R]]
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;
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%concat1 = shufflevector <2 x i8> %a, <2 x i8> %b, <4 x i32> <i32 0, i32 undef, i32 undef, i32 3>
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%concat2 = shufflevector <2 x i8> %c, <2 x i8> %d, <4 x i32> <i32 0, i32 undef, i32 undef, i32 3>
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%r = lshr exact <4 x i8> %concat1, %concat2
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ret <4 x i8> %r
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}
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; Extra-uses prevent the transform.
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declare void @use(<4 x i8>)
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define <4 x i8> @ashr(<2 x i8> %a, <2 x i8> %b, <2 x i8> %c, <2 x i8> %d) {
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; CHECK-LABEL: @ashr(
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; CHECK-NEXT: [[CONCAT1:%.*]] = shufflevector <2 x i8> [[A:%.*]], <2 x i8> [[B:%.*]], <4 x i32> <i32 0, i32 1, i32 2, i32 3>
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; CHECK-NEXT: call void @use(<4 x i8> [[CONCAT1]])
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; CHECK-NEXT: [[CONCAT2:%.*]] = shufflevector <2 x i8> [[C:%.*]], <2 x i8> [[D:%.*]], <4 x i32> <i32 0, i32 1, i32 2, i32 3>
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; CHECK-NEXT: [[R:%.*]] = ashr <4 x i8> [[CONCAT1]], [[CONCAT2]]
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; CHECK-NEXT: ret <4 x i8> [[R]]
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;
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%concat1 = shufflevector <2 x i8> %a, <2 x i8> %b, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
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call void @use(<4 x i8> %concat1)
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%concat2 = shufflevector <2 x i8> %c, <2 x i8> %d, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
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%r = ashr <4 x i8> %concat1, %concat2
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ret <4 x i8> %r
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}
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; TODO: Div/rem with undef in any element in the divisor is undef, so this should be simplified away?
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define <4 x i8> @sdiv(<2 x i8> %a, <2 x i8> %b, <2 x i8> %c, <2 x i8> %d) {
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; CHECK-LABEL: @sdiv(
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; CHECK-NEXT: [[TMP1:%.*]] = sdiv exact <2 x i8> [[A:%.*]], [[C:%.*]]
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; CHECK-NEXT: [[TMP2:%.*]] = sdiv exact <2 x i8> [[B:%.*]], [[D:%.*]]
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; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x i8> [[TMP1]], <2 x i8> [[TMP2]], <4 x i32> <i32 0, i32 1, i32 undef, i32 3>
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; CHECK-NEXT: ret <4 x i8> [[R]]
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;
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%concat1 = shufflevector <2 x i8> %a, <2 x i8> %b, <4 x i32> <i32 0, i32 1, i32 undef, i32 3>
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%concat2 = shufflevector <2 x i8> %c, <2 x i8> %d, <4 x i32> <i32 0, i32 1, i32 undef, i32 3>
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%r = sdiv exact <4 x i8> %concat1, %concat2
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ret <4 x i8> %r
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}
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define <4 x i8> @srem(<2 x i8> %a, <2 x i8> %b, <2 x i8> %c, <2 x i8> %d) {
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; CHECK-LABEL: @srem(
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; CHECK-NEXT: [[TMP1:%.*]] = srem <2 x i8> [[A:%.*]], [[C:%.*]]
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; CHECK-NEXT: [[TMP2:%.*]] = srem <2 x i8> [[B:%.*]], [[D:%.*]]
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; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x i8> [[TMP1]], <2 x i8> [[TMP2]], <4 x i32> <i32 0, i32 1, i32 2, i32 3>
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; CHECK-NEXT: ret <4 x i8> [[R]]
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;
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%concat1 = shufflevector <2 x i8> %a, <2 x i8> %b, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
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%concat2 = shufflevector <2 x i8> %c, <2 x i8> %d, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
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%r = srem <4 x i8> %concat1, %concat2
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ret <4 x i8> %r
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}
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define <4 x i8> @udiv(<2 x i8> %a, <2 x i8> %b, <2 x i8> %c, <2 x i8> %d) {
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; CHECK-LABEL: @udiv(
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; CHECK-NEXT: [[TMP1:%.*]] = udiv exact <2 x i8> [[A:%.*]], [[C:%.*]]
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; CHECK-NEXT: [[TMP2:%.*]] = udiv exact <2 x i8> [[B:%.*]], [[D:%.*]]
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; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x i8> [[TMP1]], <2 x i8> [[TMP2]], <4 x i32> <i32 0, i32 1, i32 2, i32 3>
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; CHECK-NEXT: ret <4 x i8> [[R]]
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;
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%concat1 = shufflevector <2 x i8> %a, <2 x i8> %b, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
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%concat2 = shufflevector <2 x i8> %c, <2 x i8> %d, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
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%r = udiv exact <4 x i8> %concat1, %concat2
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ret <4 x i8> %r
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}
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; TODO: Div/rem with undef in any element in the divisor is undef, so this should be simplified away?
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define <4 x i8> @urem(<2 x i8> %a, <2 x i8> %b, <2 x i8> %c, <2 x i8> %d) {
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; CHECK-LABEL: @urem(
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; CHECK-NEXT: [[TMP1:%.*]] = urem <2 x i8> [[A:%.*]], [[C:%.*]]
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; CHECK-NEXT: [[TMP2:%.*]] = urem <2 x i8> [[B:%.*]], [[D:%.*]]
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; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x i8> [[TMP1]], <2 x i8> [[TMP2]], <4 x i32> <i32 undef, i32 1, i32 2, i32 3>
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; CHECK-NEXT: ret <4 x i8> [[R]]
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;
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%concat1 = shufflevector <2 x i8> %a, <2 x i8> %b, <4 x i32> <i32 undef, i32 1, i32 2, i32 3>
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%concat2 = shufflevector <2 x i8> %c, <2 x i8> %d, <4 x i32> <i32 undef, i32 1, i32 2, i32 3>
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%r = urem <4 x i8> %concat1, %concat2
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ret <4 x i8> %r
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}
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define <4 x float> @fadd(<2 x float> %a, <2 x float> %b, <2 x float> %c, <2 x float> %d) {
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; CHECK-LABEL: @fadd(
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; CHECK-NEXT: [[TMP1:%.*]] = fadd <2 x float> [[A:%.*]], [[C:%.*]]
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; CHECK-NEXT: [[TMP2:%.*]] = fadd <2 x float> [[B:%.*]], [[D:%.*]]
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; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x float> [[TMP1]], <2 x float> [[TMP2]], <4 x i32> <i32 0, i32 1, i32 2, i32 3>
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; CHECK-NEXT: ret <4 x float> [[R]]
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;
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%concat1 = shufflevector <2 x float> %a, <2 x float> %b, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
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%concat2 = shufflevector <2 x float> %c, <2 x float> %d, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
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%r = fadd <4 x float> %concat1, %concat2
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ret <4 x float> %r
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}
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; Fast-math-flags propagate.
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define <4 x float> @fsub(<2 x float> %a, <2 x float> %b, <2 x float> %c, <2 x float> %d) {
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; CHECK-LABEL: @fsub(
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; CHECK-NEXT: [[TMP1:%.*]] = fsub fast <2 x float> [[A:%.*]], [[C:%.*]]
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; CHECK-NEXT: [[TMP2:%.*]] = fsub fast <2 x float> [[B:%.*]], [[D:%.*]]
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; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x float> [[TMP1]], <2 x float> [[TMP2]], <4 x i32> <i32 0, i32 1, i32 undef, i32 3>
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; CHECK-NEXT: ret <4 x float> [[R]]
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;
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%concat1 = shufflevector <2 x float> %a, <2 x float> %b, <4 x i32> <i32 0, i32 1, i32 undef, i32 3>
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%concat2 = shufflevector <2 x float> %c, <2 x float> %d, <4 x i32> <i32 0, i32 1, i32 undef, i32 3>
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%r = fsub fast <4 x float> %concat1, %concat2
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ret <4 x float> %r
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}
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; Extra-uses prevent the transform.
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declare void @use2(<4 x float>)
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define <4 x float> @fmul(<2 x float> %a, <2 x float> %b, <2 x float> %c, <2 x float> %d) {
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; CHECK-LABEL: @fmul(
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; CHECK-NEXT: [[CONCAT1:%.*]] = shufflevector <2 x float> [[A:%.*]], <2 x float> [[B:%.*]], <4 x i32> <i32 undef, i32 1, i32 undef, i32 3>
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; CHECK-NEXT: [[CONCAT2:%.*]] = shufflevector <2 x float> [[C:%.*]], <2 x float> [[D:%.*]], <4 x i32> <i32 undef, i32 1, i32 undef, i32 3>
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; CHECK-NEXT: call void @use2(<4 x float> [[CONCAT2]])
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; CHECK-NEXT: [[R:%.*]] = fmul nnan <4 x float> [[CONCAT1]], [[CONCAT2]]
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; CHECK-NEXT: ret <4 x float> [[R]]
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;
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%concat1 = shufflevector <2 x float> %a, <2 x float> %b, <4 x i32> <i32 undef, i32 1, i32 undef, i32 3>
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%concat2 = shufflevector <2 x float> %c, <2 x float> %d, <4 x i32> <i32 undef, i32 1, i32 undef, i32 3>
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call void @use2(<4 x float> %concat2)
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%r = fmul nnan <4 x float> %concat1, %concat2
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ret <4 x float> %r
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}
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; Fast-math-flags propagate.
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define <4 x float> @fdiv(<2 x float> %a, <2 x float> %b, <2 x float> %c, <2 x float> %d) {
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; CHECK-LABEL: @fdiv(
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; CHECK-NEXT: [[TMP1:%.*]] = fdiv ninf arcp <2 x float> [[A:%.*]], [[C:%.*]]
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; CHECK-NEXT: [[TMP2:%.*]] = fdiv ninf arcp <2 x float> [[B:%.*]], [[D:%.*]]
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; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x float> [[TMP1]], <2 x float> [[TMP2]], <4 x i32> <i32 0, i32 1, i32 2, i32 3>
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; CHECK-NEXT: ret <4 x float> [[R]]
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;
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%concat1 = shufflevector <2 x float> %a, <2 x float> %b, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
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%concat2 = shufflevector <2 x float> %c, <2 x float> %d, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
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%r = fdiv ninf arcp <4 x float> %concat1, %concat2
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ret <4 x float> %r
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}
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define <4 x float> @frem(<2 x float> %a, <2 x float> %b, <2 x float> %c, <2 x float> %d) {
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; CHECK-LABEL: @frem(
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; CHECK-NEXT: [[TMP1:%.*]] = frem <2 x float> [[A:%.*]], [[C:%.*]]
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; CHECK-NEXT: [[TMP2:%.*]] = frem <2 x float> [[B:%.*]], [[D:%.*]]
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; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x float> [[TMP1]], <2 x float> [[TMP2]], <4 x i32> <i32 0, i32 undef, i32 2, i32 3>
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; CHECK-NEXT: ret <4 x float> [[R]]
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;
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%concat1 = shufflevector <2 x float> %a, <2 x float> %b, <4 x i32> <i32 0, i32 undef, i32 2, i32 3>
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%concat2 = shufflevector <2 x float> %c, <2 x float> %d, <4 x i32> <i32 0, i32 undef, i32 2, i32 3>
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%r = frem <4 x float> %concat1, %concat2
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ret <4 x float> %r
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}
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; https://bugs.llvm.org/show_bug.cgi?id=33026 - all of the shuffles can be eliminated.
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define <4 x i32> @PR33026(<4 x i32> %a, <4 x i32> %b, <4 x i32> %c, <4 x i32> %d) {
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; CHECK-LABEL: @PR33026(
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; CHECK-NEXT: [[TMP1:%.*]] = and <4 x i32> [[A:%.*]], [[C:%.*]]
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; CHECK-NEXT: [[TMP2:%.*]] = and <4 x i32> [[B:%.*]], [[D:%.*]]
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; CHECK-NEXT: [[SUB:%.*]] = sub <4 x i32> [[TMP1]], [[TMP2]]
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; CHECK-NEXT: ret <4 x i32> [[SUB]]
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;
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%concat1 = shufflevector <4 x i32> %a, <4 x i32> %b, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
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%concat2 = shufflevector <4 x i32> %c, <4 x i32> %d, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
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%and = and <8 x i32> %concat1, %concat2
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%extract1 = shufflevector <8 x i32> %and, <8 x i32> undef, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
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%extract2 = shufflevector <8 x i32> %and, <8 x i32> undef, <4 x i32> <i32 4, i32 5, i32 6, i32 7>
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%sub = sub <4 x i32> %extract1, %extract2
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ret <4 x i32> %sub
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}
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