63 lines
1.8 KiB
LLVM
63 lines
1.8 KiB
LLVM
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; 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(i16* %x) {
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; CHECK-LABEL: @test1(
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; CHECK-NEXT: [[LOAD:%.*]] = load i16, i16* [[X:%.*]], align 4
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; CHECK-NEXT: [[TMP1:%.*]] = icmp eq i16 [[LOAD]], 17791
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; CHECK-NEXT: ret i1 [[TMP1]]
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;
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%load = load i16, i16* %x, align 4
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%trunc = trunc i16 %load to i8
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%cmp1 = icmp eq i8 %trunc, 127
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%and = and i16 %load, -256
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%cmp2 = icmp eq i16 %and, 17664
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%or = and i1 %cmp1, %cmp2
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ret i1 %or
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}
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define i1 @test1_logical(i16* %x) {
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; CHECK-LABEL: @test1_logical(
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; CHECK-NEXT: [[LOAD:%.*]] = load i16, i16* [[X:%.*]], align 4
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; CHECK-NEXT: [[TMP1:%.*]] = icmp eq i16 [[LOAD]], 17791
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; CHECK-NEXT: ret i1 [[TMP1]]
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;
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%load = load i16, i16* %x, align 4
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%trunc = trunc i16 %load to i8
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%cmp1 = icmp eq i8 %trunc, 127
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%and = and i16 %load, -256
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%cmp2 = icmp eq i16 %and, 17664
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%or = select i1 %cmp1, i1 %cmp2, i1 false
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ret i1 %or
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}
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define i1 @test2(i16* %x) {
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; CHECK-LABEL: @test2(
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; CHECK-NEXT: [[LOAD:%.*]] = load i16, i16* [[X:%.*]], align 4
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; CHECK-NEXT: [[TMP1:%.*]] = icmp eq i16 [[LOAD]], 32581
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; CHECK-NEXT: ret i1 [[TMP1]]
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;
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%load = load i16, i16* %x, align 4
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%and = and i16 %load, -256
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%cmp1 = icmp eq i16 %and, 32512
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%trunc = trunc i16 %load to i8
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%cmp2 = icmp eq i8 %trunc, 69
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%or = and i1 %cmp1, %cmp2
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ret i1 %or
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}
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define i1 @test2_logical(i16* %x) {
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; CHECK-LABEL: @test2_logical(
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; CHECK-NEXT: [[LOAD:%.*]] = load i16, i16* [[X:%.*]], align 4
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; CHECK-NEXT: [[TMP1:%.*]] = icmp eq i16 [[LOAD]], 32581
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; CHECK-NEXT: ret i1 [[TMP1]]
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;
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%load = load i16, i16* %x, align 4
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%and = and i16 %load, -256
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%cmp1 = icmp eq i16 %and, 32512
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%trunc = trunc i16 %load to i8
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%cmp2 = icmp eq i8 %trunc, 69
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%or = select i1 %cmp1, i1 %cmp2, i1 false
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ret i1 %or
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}
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