forked from OSchip/llvm-project
23 lines
449 B
LLVM
23 lines
449 B
LLVM
; RUN: opt < %s -gvn -enable-pre -S | FileCheck %s
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define i32 @main(i32 %p, i32 %q) {
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block1:
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%cmp = icmp eq i32 %p, %q
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br i1 %cmp, label %block2, label %block3
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block2:
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%a = add i32 %p, 1
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br label %block4
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block3:
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br label %block4
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; CHECK: %.pre = add i32 %p, 1
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; CHECK-NEXT: br label %block4
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block4:
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%b = add i32 %p, 1
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ret i32 %b
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; CHECK: %b.pre-phi = phi i32 [ %.pre, %block3 ], [ %a, %block2 ]
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; CHECK-NEXT: ret i32 %b.pre-phi
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}
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