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Imported Upstream version 5.18.0.161

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Former-commit-id: 4db48158d3a35497b8f118ab21b5f08ac3d86d98
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Xamarin Public Jenkins (auto-signing)
2018-10-19 08:34:24 +00:00
parent 37fbf886a3
commit e19d552987
28702 changed files with 3868076 additions and 803 deletions
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27
external/llvm/test/Transforms/SimplifyCFG/PhiBlockMerge2.ll vendored 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: opt < %s -simplifycfg -S | not grep N:
;
declare i1 @foo()
define i32 @test(i1 %a, i1 %b) {
%c = call i1 @foo()
br i1 %c, label %N, label %P
P:
%d = call i1 @foo()
br i1 %d, label %N, label %Q
Q:
br label %N
N:
%W = phi i32 [0, %0], [1, %Q], [2, %P]
; This block should be foldable into M
br label %M
M:
%R = add i32 %W, 1
ret i32 %R
}