41 lines
1.3 KiB
LLVM
41 lines
1.3 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -S -simplifycfg -simplifycfg-require-and-preserve-domtree=1 < %s | FileCheck %s
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@global = external global i16, align 1
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@global.1 = external global i16, align 1
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@global.2 = external global i16, align 1
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define void @widget() {
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; CHECK-LABEL: @widget(
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; CHECK-NEXT: bb:
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; CHECK-NEXT: [[I:%.*]] = load i16, i16* @global, align 1
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; CHECK-NEXT: [[I13:%.*]] = icmp ne i16 [[I]], 0
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; CHECK-NEXT: call void @llvm.assume(i1 [[I13]])
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; CHECK-NEXT: unreachable
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;
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bb:
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%i = load i16, i16* @global, align 1
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%i13 = icmp ne i16 %i, 0
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br i1 %i13, label %bb16, label %bb14
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bb14: ; preds = %bb
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%i15 = load i16, i16* @global.1, align 1
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br label %bb23
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bb16: ; preds = %bb
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%i17 = load i16, i16* @global, align 1
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%i18 = sdiv i16 2, %i17
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%i19 = icmp ne i16 %i18, 0
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%i20 = zext i1 %i19 to i16
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%i21 = load i16, i16* @global.1, align 1
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br i1 %i19, label %bb22, label %bb23
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bb22: ; preds = %bb16
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br label %bb23
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bb23: ; preds = %bb22, %bb16, %bb14
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%i24 = phi i16 [ %i20, %bb22 ], [ %i21, %bb16 ], [ %i15, %bb14 ]
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store i16 %i24, i16* @global.2, align 1
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unreachable
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}
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