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authorDan Gohman <gohman@apple.com>2009-11-05 23:34:59 +0000
committerDan Gohman <gohman@apple.com>2009-11-05 23:34:59 +0000
commita1bf0c0accd53c79e1204ea1db33052e105c802d (patch)
tree946295c4711cffc4f4561a623617cd914c831b68
parent98693a3ac2f4f5a7e86e4a00899eaf9a30706497 (diff)
downloadbcm5719-llvm-a1bf0c0accd53c79e1204ea1db33052e105c802d.tar.gz
bcm5719-llvm-a1bf0c0accd53c79e1204ea1db33052e105c802d.zip
Teach LSR to avoid calling SplitCriticalEdge on edges with indirectbr.
llvm-svn: 86193
-rw-r--r--llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp b/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp
index 288dd476e9f..4b82dbfd539 100644
--- a/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp
+++ b/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp
@@ -490,6 +490,7 @@ void BasedUser::RewriteInstructionToUseNewBase(const SCEV *const &NewBase,
// is the canonical backedge for this loop, as this can make some
// inserted code be in an illegal position.
if (e != 1 && PHIPred->getTerminator()->getNumSuccessors() > 1 &&
+ !isa<IndirectBrInst>(PHIPred->getTerminator()) &&
(PN->getParent() != L->getHeader() || !L->contains(PHIPred))) {
// First step, split the critical edge.
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