48ae614701
Closes https://github.com/llvm/llvm-project/issues/96012 --------- Co-authored-by: Nikita Popov <github@npopov.com>
25 lines
695 B
LLVM
25 lines
695 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
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; RUN: opt -S -passes=instcombine < %s | FileCheck %s
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target datalayout = "e-m:e-p:64:64-i64:64-i128:128-n32:64-S128"
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; Make sure we don't hang here.
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define i32 @pr96012() {
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; CHECK-LABEL: define i32 @pr96012() {
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; CHECK-NEXT: [[ENTRY:.*:]]
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; CHECK-NEXT: br label %[[FOR_COND:.*]]
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; CHECK: [[FOR_COND]]:
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; CHECK-NEXT: br label %[[FOR_COND]]
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;
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entry:
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br label %for.cond
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for.cond:
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%indvar = phi i32 [ 1, %entry ], [ %shl, %for.cond ]
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%conv1 = trunc i32 %indvar to i8
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%neg = sub i8 0, %conv1
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%conv2 = zext i8 %neg to i32
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%shl = shl nuw i32 %conv2, 24
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br label %for.cond
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}
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