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llvm-mirror/test/Transforms/SimplifyCFG/EqualPHIEdgeBlockMerge.ll
Dan Gohman 205b641954 Change tests from "opt %s" to "opt < %s" so that opt doesn't see the
input filename so that opt doesn't print the input filename in the
output so that grep lines in the tests don't unintentionally match
strings in the input filename.

llvm-svn: 81537
2009-09-11 18:01:28 +00:00

19 lines
504 B
LLVM

; Test merging of blocks with phi nodes.
;
; RUN: opt < %s -simplifycfg -S | not grep N:
;
define i32 @test(i1 %a) {
Q:
br i1 %a, label %N, label %M
N: ; preds = %Q
br label %M
M: ; preds = %N, %Q
; It's ok to merge N and M because the incoming values for W are the
; same for both cases...
%W = phi i32 [ 2, %N ], [ 2, %Q ] ; <i32> [#uses=1]
%R = add i32 %W, 1 ; <i32> [#uses=1]
ret i32 %R
}