From fbffe635282804ad2e30248368ddc2ec9dc65b6a Mon Sep 17 00:00:00 2001 From: Dan Gohman Date: Fri, 20 Nov 2009 20:51:18 +0000 Subject: 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. llvm-svn: 89484 --- llvm/test/Transforms/LoopSimplify/indirectbr.ll | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'llvm/test/Transforms/LoopSimplify') diff --git a/llvm/test/Transforms/LoopSimplify/indirectbr.ll b/llvm/test/Transforms/LoopSimplify/indirectbr.ll index b0238473b68..2e4549d1e9c 100644 --- a/llvm/test/Transforms/LoopSimplify/indirectbr.ll +++ b/llvm/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 +} -- cgit v1.2.3