forked from OSchip/llvm-project
33 lines
1.0 KiB
LLVM
33 lines
1.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -simplifycfg -simplifycfg-require-and-preserve-domtree=1 -instcombine -S < %s | FileCheck %s
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%struct.test = type { i8, [3 x i8] }
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define i32 @get(%struct.test* nocapture readonly %arg) {
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; CHECK-LABEL: @get(
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; CHECK-NEXT: bb:
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; CHECK-NEXT: [[I:%.*]] = getelementptr inbounds [[STRUCT_TEST:%.*]], %struct.test* [[ARG:%.*]], i64 0, i32 0
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; CHECK-NEXT: [[I1:%.*]] = load i8, i8* [[I]], align 4
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; CHECK-NEXT: [[TMP0:%.*]] = and i8 [[I1]], 3
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; CHECK-NEXT: [[TMP1:%.*]] = icmp ne i8 [[TMP0]], 0
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; CHECK-NEXT: [[I9:%.*]] = zext i1 [[TMP1]] to i32
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; CHECK-NEXT: ret i32 [[I9]]
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;
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bb:
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%i = getelementptr inbounds %struct.test, %struct.test* %arg, i64 0, i32 0
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%i1 = load i8, i8* %i, align 4
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%i2 = and i8 %i1, 1
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%i3 = icmp eq i8 %i2, 0
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br i1 %i3, label %bb4, label %bb8
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bb4:
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%i5 = lshr i8 %i1, 1
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%i6 = and i8 %i5, 1
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%i7 = zext i8 %i6 to i32
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br label %bb8
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bb8:
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%i9 = phi i32 [ 1, %bb ], [ %i7, %bb4 ]
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ret i32 %i9
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}
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