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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5701 91177308-0d34-0410-b5e6-96231b3b80d8
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Chris Lattner 2003-03-05 21:34:35 +00:00
parent 05ddff9b98
commit a1040199e4
1 changed files with 24 additions and 0 deletions
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24
test/Transforms/SimplifyCFG/PhiBlockMerge2.ll Normal file
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; Test merging of blocks that only have PHI nodes in them. This tests the case
; where the mergedinto block doesn't have any PHI nodes, and is in fact
; dominated by the block-to-be-eliminated
;
; RUN: if as < %s | opt -simplifycfg | dis | grep 'N:'
; RUN: then exit 1
; RUN: else exit 0
; RUN: fi
;
int %test(bool %a, bool %b) {
br bool %b, label %N, label %Q
Q:
br label %N
N:
%W = phi int [0, %0], [1, %Q]
; This block should be foldable into M
br label %M
M:
%R = add int %W, 1
ret int %R
}