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| author | Dan Gohman <gohman@apple.com> | 2009-11-20 20:51:18 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2009-11-20 20:51:18 +0000 |
| commit | a58a04921deba911d6ead8d24f495cec234681c1 (patch) | |
| tree | b051c1c24f3d53ceea308c0a6ca0ddb599f21e57 /test/Transforms/LoopSimplify | |
| parent | 6a2392131e2e5b8c4123d69cc959831b4fe719ca (diff) | |
| download | external_llvm-a58a04921deba911d6ead8d24f495cec234681c1.zip external_llvm-a58a04921deba911d6ead8d24f495cec234681c1.tar.gz external_llvm-a58a04921deba911d6ead8d24f495cec234681c1.tar.bz2 | |
Make Loop::getLoopLatch() work on loops which don't have preheaders, as
it may be used in contexts where preheader insertion may have failed due
to an indirectbr.
Make LoopSimplify's LoopSimplify::SeparateNestedLoop properly fail in
the case that it would require splitting an indirectbr edge.
These fix PR5502.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89484 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/LoopSimplify')
| -rw-r--r-- | test/Transforms/LoopSimplify/indirectbr.ll | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/test/Transforms/LoopSimplify/indirectbr.ll b/test/Transforms/LoopSimplify/indirectbr.ll index b023847..2e4549d 100644 --- a/test/Transforms/LoopSimplify/indirectbr.ll +++ b/test/Transforms/LoopSimplify/indirectbr.ll @@ -81,3 +81,20 @@ L1: %y = phi i64 [ %z, %L0 ], [ 1, %entry ] ret i64 %y } + +define void @pr5502() nounwind { +entry: + br label %while.cond + +while.cond: + br i1 undef, label %while.body, label %while.end + +while.body: + indirectbr i8* undef, [label %end_opcode, label %end_opcode] + +end_opcode: + br i1 false, label %end_opcode, label %while.cond + +while.end: + ret void +} |