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llvm-mirror/test/Regression/Transforms/SimplifyCFG/2002-05-05-EmptyBlockMerge.ll
Chris Lattner 05b7ed23ec This testcase was very broken! The block could not be merged because then
there would be a broken PHI node

llvm-svn: 2692
2002-05-21 19:32:58 +00:00

20 lines
425 B
LLVM

; Basic block #2 should not be merged into BB #3!
;
; RUN: as < %s | opt -simplifycfg | dis | grep 'br label'
;
void "cprop_test12"(int* %data) {
bb0:
%reg108 = load int* %data
%cond218 = setne int %reg108, 5
br bool %cond218, label %bb3, label %bb2
bb2:
br label %bb3
bb3:
%reg117 = phi int [ 110, %bb2 ], [ %reg108, %bb0 ]
store int %reg117, int* %data
ret void
}