forked from OSchip/llvm-project
29 lines
710 B
LLVM
29 lines
710 B
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -reassociate %s -S | FileCheck %s
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target triple = "x86_64-unknown-linux-gnu"
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define void @f() {
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; CHECK-LABEL: @f(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br label [[DONE:%.*]]
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; CHECK: dead:
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; CHECK-NEXT: [[XOR0:%.*]] = xor i16 [[XOR1:%.*]], undef
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; CHECK-NEXT: [[XOR1]] = xor i16 [[XOR0]], undef
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; CHECK-NEXT: br i1 undef, label [[DEAD:%.*]], label [[DONE]]
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; CHECK: done:
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; CHECK-NEXT: ret void
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;
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entry:
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br label %done
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dead:
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%xor0 = xor i16 %xor1, undef
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%xor1 = xor i16 %xor0, undef
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br i1 undef, label %dead, label %done
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done:
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%e = phi i16 [ %xor1, %dead ], [ 0, %entry ]
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ret void
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}
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