llvm-mirror/test/Transforms/SimplifyCFG/PhiBlockMerge2.ll
Reid Spencer 11d48d6932 For PR1319:
Upgrade to use new Tcl exec based test harness. This exposes 3 bugs that
were previously not being reported:
test/Transforms/GlobalDCE/2002-08-17-FunctionDGE.ll
test/Transforms/GlobalOpt/memset.ll
test/Transforms/IndVarsSimplify/exit_value_tests.llx

llvm-svn: 36065
2007-04-15 09:21:47 +00:00

22 lines
483 B
LLVM

; 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: llvm-upgrade < %s | llvm-as | opt -simplifycfg | llvm-dis | not grep N:
;
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
}