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a1040199e4
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5701 91177308-0d34-0410-b5e6-96231b3b80d8
25 lines
507 B
LLVM
25 lines
507 B
LLVM
; Test merging of blocks that only have PHI nodes in them. This tests the case
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; where the mergedinto block doesn't have any PHI nodes, and is in fact
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; dominated by the block-to-be-eliminated
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;
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; RUN: if as < %s | opt -simplifycfg | dis | grep 'N:'
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; RUN: then exit 1
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; RUN: else exit 0
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; RUN: fi
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;
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int %test(bool %a, bool %b) {
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br bool %b, label %N, label %Q
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Q:
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br label %N
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N:
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%W = phi int [0, %0], [1, %Q]
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; This block should be foldable into M
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br label %M
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M:
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%R = add int %W, 1
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ret int %R
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}
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