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authorDan Gohman <gohman@apple.com>2009-11-20 20:51:18 +0000
committerDan Gohman <gohman@apple.com>2009-11-20 20:51:18 +0000
commitfbffe635282804ad2e30248368ddc2ec9dc65b6a (patch)
tree45a8941be29ffbefe8887e9e9da52c1bc977512b /llvm/test/Transforms/LoopSimplify
parentd15302afa04f5abaad8fd36217d10de9dd3d7a85 (diff)
downloadbcm5719-llvm-fbffe635282804ad2e30248368ddc2ec9dc65b6a.tar.gz
bcm5719-llvm-fbffe635282804ad2e30248368ddc2ec9dc65b6a.zip
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
Diffstat (limited to 'llvm/test/Transforms/LoopSimplify')
-rw-r--r--llvm/test/Transforms/LoopSimplify/indirectbr.ll17
1 files changed, 17 insertions, 0 deletions
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
+}
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