forked from OSchip/llvm-project
92 lines
2.2 KiB
LLVM
92 lines
2.2 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 i1 @test1(i8 %x, i8 %y) {
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; CHECK-LABEL: @test1(
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; CHECK-NEXT: [[TMP:%.*]] = icmp ult i8 %x, %y
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; CHECK-NEXT: ret i1 [[TMP]]
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;
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%X = xor i8 %x, 128
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%Y = xor i8 %y, 128
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%tmp = icmp slt i8 %X, %Y
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ret i1 %tmp
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}
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define i1 @test2(i8 %x, i8 %y) {
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; CHECK-LABEL: @test2(
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; CHECK-NEXT: [[TMP:%.*]] = icmp slt i8 %x, %y
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; CHECK-NEXT: ret i1 [[TMP]]
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;
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%X = xor i8 %x, 128
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%Y = xor i8 %y, 128
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%tmp = icmp ult i8 %X, %Y
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ret i1 %tmp
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}
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define i1 @test3(i8 %x) {
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; CHECK-LABEL: @test3(
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; CHECK-NEXT: [[TMP:%.*]] = icmp sgt i8 %x, -114
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; CHECK-NEXT: ret i1 [[TMP]]
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;
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%X = xor i8 %x, 128
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%tmp = icmp uge i8 %X, 15
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ret i1 %tmp
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}
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; FIXME: Vectors should fold too.
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define <2 x i1> @test3vec(<2 x i8> %x) {
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; CHECK-LABEL: @test3vec(
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; CHECK-NEXT: [[X:%.*]] = xor <2 x i8> %x, <i8 -128, i8 -128>
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; CHECK-NEXT: [[TMP:%.*]] = icmp ugt <2 x i8> [[X]], <i8 14, i8 14>
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; CHECK-NEXT: ret <2 x i1> [[TMP]]
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;
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%X = xor <2 x i8> %x, <i8 128, i8 128>
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%tmp = icmp uge <2 x i8> %X, <i8 15, i8 15>
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ret <2 x i1> %tmp
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}
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define i1 @test4(i8 %x, i8 %y) {
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; CHECK-LABEL: @test4(
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; CHECK-NEXT: [[TMP:%.*]] = icmp ugt i8 %x, %y
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; CHECK-NEXT: ret i1 [[TMP]]
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;
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%X = xor i8 %x, 127
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%Y = xor i8 %y, 127
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%tmp = icmp slt i8 %X, %Y
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ret i1 %tmp
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}
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define i1 @test5(i8 %x, i8 %y) {
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; CHECK-LABEL: @test5(
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; CHECK-NEXT: [[TMP:%.*]] = icmp sgt i8 %x, %y
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; CHECK-NEXT: ret i1 [[TMP]]
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;
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%X = xor i8 %x, 127
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%Y = xor i8 %y, 127
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%tmp = icmp ult i8 %X, %Y
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ret i1 %tmp
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}
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define i1 @test6(i8 %x) {
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; CHECK-LABEL: @test6(
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; CHECK-NEXT: [[TMP:%.*]] = icmp slt i8 %x, 113
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; CHECK-NEXT: ret i1 [[TMP]]
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;
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%X = xor i8 %x, 127
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%tmp = icmp uge i8 %X, 15
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ret i1 %tmp
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}
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; FIXME: Vectors should fold too.
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define <2 x i1> @test6vec(<2 x i8> %x) {
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; CHECK-LABEL: @test6vec(
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; CHECK-NEXT: [[X:%.*]] = xor <2 x i8> %x, <i8 127, i8 127>
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; CHECK-NEXT: [[TMP:%.*]] = icmp ugt <2 x i8> [[X]], <i8 14, i8 14>
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; CHECK-NEXT: ret <2 x i1> [[TMP]]
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;
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%X = xor <2 x i8> %x, <i8 127, i8 127>
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%tmp = icmp uge <2 x i8> %X, <i8 15, i8 15>
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ret <2 x i1> %tmp
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}
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