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authorAndrew Trick <atrick@apple.com>2012-06-15 20:07:26 +0000
committerAndrew Trick <atrick@apple.com>2012-06-15 20:07:26 +0000
commit546f2101152f75c8d84115f6a6b2f3c16389b1ac (patch)
treeab4dc83a64871d220dfd0b90b872722ec29ad821 /lib/Transforms
parent4b8e1fd054f88b443c4983c7c8b9f2e1f22e3686 (diff)
LSR fix: "Special" users are just like "Basic" users but allow -1 scale.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158536 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms')
-rw-r--r--lib/Transforms/Scalar/LoopStrengthReduce.cpp4
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/Transforms/Scalar/LoopStrengthReduce.cpp b/lib/Transforms/Scalar/LoopStrengthReduce.cpp
index 94c229a8e2..963811ee27 100644
--- a/lib/Transforms/Scalar/LoopStrengthReduce.cpp
+++ b/lib/Transforms/Scalar/LoopStrengthReduce.cpp
@@ -1308,8 +1308,8 @@ static bool isLegalUse(const TargetLowering::AddrMode &AM,
return !AM.BaseGV && AM.Scale == 0 && AM.BaseOffs == 0;
case LSRUse::Special:
- // Only handle -1 scales, or no scale.
- return AM.Scale == 0 || AM.Scale == -1;
+ // Special case Basic to handle -1 scales.
+ return !AM.BaseGV && (AM.Scale == 0 || AM.Scale == -1) && AM.BaseOffs == 0;
}
llvm_unreachable("Invalid LSRUse Kind!");