derek.holloway
7502bf64a4
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124 lines
5.1 KiB
LLVM
124 lines
5.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -passes=instcombine -S | FileCheck %s
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define i32 @select_of_symmetric_selects(i32 %a, i32 %b, i1 %c1, i1 %c2) {
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; CHECK-LABEL: @select_of_symmetric_selects(
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; CHECK-NEXT: [[TMP1:%.*]] = xor i1 [[C1:%.*]], [[C2:%.*]]
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; CHECK-NEXT: [[RET:%.*]] = select i1 [[TMP1]], i32 [[B:%.*]], i32 [[A:%.*]]
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; CHECK-NEXT: ret i32 [[RET]]
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;
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%sel1 = select i1 %c1, i32 %a, i32 %b
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%sel2 = select i1 %c1, i32 %b, i32 %a
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%ret = select i1 %c2, i32 %sel1, i32 %sel2
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ret i32 %ret
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}
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define i32 @select_of_symmetric_selects_negative1(i32 %a, i32 %b, i1 %c1, i1 %c2) {
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; CHECK-LABEL: @select_of_symmetric_selects_negative1(
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; CHECK-NEXT: [[TMP1:%.*]] = xor i1 [[C1:%.*]], true
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; CHECK-NEXT: [[C2:%.*]] = select i1 [[C3:%.*]], i1 [[TMP1]], i1 false
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; CHECK-NEXT: [[RET:%.*]] = select i1 [[C2]], i32 [[SEL1:%.*]], i32 [[A:%.*]]
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; CHECK-NEXT: ret i32 [[RET]]
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;
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%sel1 = select i1 %c1, i32 %a, i32 %b
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%sel2 = select i1 %c2, i32 %b, i32 %a
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%ret = select i1 %c2, i32 %sel1, i32 %sel2
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ret i32 %ret
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}
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define i32 @select_of_symmetric_selects_negative2(i32 %a, i32 %b, i32 %c, i1 %c1, i1 %c2) {
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; CHECK-LABEL: @select_of_symmetric_selects_negative2(
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; CHECK-NEXT: [[SEL1:%.*]] = select i1 [[C1:%.*]], i32 [[A:%.*]], i32 [[B:%.*]]
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; CHECK-NEXT: [[SEL2:%.*]] = select i1 [[C1]], i32 [[B]], i32 [[C:%.*]]
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; CHECK-NEXT: [[RET:%.*]] = select i1 [[C2:%.*]], i32 [[SEL1]], i32 [[SEL2]]
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; CHECK-NEXT: ret i32 [[RET]]
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;
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%sel1 = select i1 %c1, i32 %a, i32 %b
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%sel2 = select i1 %c1, i32 %b, i32 %c
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%ret = select i1 %c2, i32 %sel1, i32 %sel2
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ret i32 %ret
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}
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declare void @use(i32)
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define i32 @select_of_symmetric_selects_multi_use1(i32 %a, i32 %b, i1 %c1, i1 %c2) {
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; CHECK-LABEL: @select_of_symmetric_selects_multi_use1(
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; CHECK-NEXT: [[SEL1:%.*]] = select i1 [[C1:%.*]], i32 [[A:%.*]], i32 [[B:%.*]]
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; CHECK-NEXT: [[SEL2:%.*]] = select i1 [[C1]], i32 [[B]], i32 [[A]]
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; CHECK-NEXT: call void @use(i32 [[SEL2]])
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; CHECK-NEXT: [[RET:%.*]] = select i1 [[C2:%.*]], i32 [[SEL1]], i32 [[SEL2]]
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; CHECK-NEXT: ret i32 [[RET]]
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;
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%sel1 = select i1 %c1, i32 %a, i32 %b
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%sel2 = select i1 %c1, i32 %b, i32 %a
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call void @use(i32 %sel2)
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%ret = select i1 %c2, i32 %sel1, i32 %sel2
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ret i32 %ret
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}
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define i32 @select_of_symmetric_selects_multi_use2(i32 %a, i32 %b, i1 %c1, i1 %c2) {
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; CHECK-LABEL: @select_of_symmetric_selects_multi_use2(
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; CHECK-NEXT: [[SEL1:%.*]] = select i1 [[C1:%.*]], i32 [[A:%.*]], i32 [[B:%.*]]
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; CHECK-NEXT: call void @use(i32 [[SEL1]])
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; CHECK-NEXT: [[SEL2:%.*]] = select i1 [[C1]], i32 [[B]], i32 [[A]]
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; CHECK-NEXT: call void @use(i32 [[SEL2]])
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; CHECK-NEXT: [[RET:%.*]] = select i1 [[C2:%.*]], i32 [[SEL1]], i32 [[SEL2]]
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; CHECK-NEXT: ret i32 [[RET]]
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;
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%sel1 = select i1 %c1, i32 %a, i32 %b
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call void @use(i32 %sel1)
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%sel2 = select i1 %c1, i32 %b, i32 %a
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call void @use(i32 %sel2)
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%ret = select i1 %c2, i32 %sel1, i32 %sel2
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ret i32 %ret
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}
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define i32 @select_of_symmetric_selects_commuted(i32 %a, i32 %b, i1 %c1, i1 %c2) {
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; CHECK-LABEL: @select_of_symmetric_selects_commuted(
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; CHECK-NEXT: [[TMP1:%.*]] = xor i1 [[C1:%.*]], [[C2:%.*]]
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; CHECK-NEXT: [[RET:%.*]] = select i1 [[TMP1]], i32 [[A:%.*]], i32 [[B:%.*]]
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; CHECK-NEXT: ret i32 [[RET]]
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;
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%sel1 = select i1 %c1, i32 %a, i32 %b
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%sel2 = select i1 %c1, i32 %b, i32 %a
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%ret = select i1 %c2, i32 %sel2, i32 %sel1
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ret i32 %ret
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}
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define <4 x i32> @select_of_symmetric_selects_vector1(<4 x i32> %a, <4 x i32> %b, i1 %c1, i1 %c2) {
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; CHECK-LABEL: @select_of_symmetric_selects_vector1(
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; CHECK-NEXT: [[TMP1:%.*]] = xor i1 [[C1:%.*]], [[C2:%.*]]
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; CHECK-NEXT: [[RET:%.*]] = select i1 [[TMP1]], <4 x i32> [[A:%.*]], <4 x i32> [[B:%.*]]
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; CHECK-NEXT: ret <4 x i32> [[RET]]
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;
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%sel1 = select i1 %c1, <4 x i32> %a, <4 x i32> %b
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%sel2 = select i1 %c1, <4 x i32> %b, <4 x i32> %a
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%ret = select i1 %c2, <4 x i32> %sel2, <4 x i32> %sel1
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ret <4 x i32> %ret
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}
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define <4 x i32> @select_of_symmetric_selects_vector2(<4 x i32> %a, <4 x i32> %b, <4 x i1> %c1, <4 x i1> %c2) {
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; CHECK-LABEL: @select_of_symmetric_selects_vector2(
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; CHECK-NEXT: [[TMP1:%.*]] = xor <4 x i1> [[C1:%.*]], [[C2:%.*]]
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; CHECK-NEXT: [[RET:%.*]] = select <4 x i1> [[TMP1]], <4 x i32> [[A:%.*]], <4 x i32> [[B:%.*]]
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; CHECK-NEXT: ret <4 x i32> [[RET]]
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;
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%sel1 = select <4 x i1> %c1, <4 x i32> %a, <4 x i32> %b
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%sel2 = select <4 x i1> %c1, <4 x i32> %b, <4 x i32> %a
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%ret = select <4 x i1> %c2, <4 x i32> %sel2, <4 x i32> %sel1
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ret <4 x i32> %ret
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}
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define <2 x i32> @select_of_symmetric_selects_vector3(<2 x i32> %a, <2 x i32> %b, <2 x i1> %c1, i1 %c2) {
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; CHECK-LABEL: @select_of_symmetric_selects_vector3(
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; CHECK-NEXT: [[SEL1:%.*]] = select <2 x i1> [[C1:%.*]], <2 x i32> [[A:%.*]], <2 x i32> [[B:%.*]]
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; CHECK-NEXT: [[SEL2:%.*]] = select <2 x i1> [[C1]], <2 x i32> [[B]], <2 x i32> [[A]]
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; CHECK-NEXT: [[RET:%.*]] = select i1 [[C2:%.*]], <2 x i32> [[SEL1]], <2 x i32> [[SEL2]]
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; CHECK-NEXT: ret <2 x i32> [[RET]]
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;
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%sel1 = select <2 x i1> %c1, <2 x i32> %a, <2 x i32> %b
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%sel2 = select <2 x i1> %c1, <2 x i32> %b, <2 x i32> %a
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%ret = select i1 %c2, <2 x i32> %sel1, <2 x i32> %sel2
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ret <2 x i32> %ret
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}
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