diff options
Diffstat (limited to 'lib/Analysis/TargetTransformInfo.cpp')
| -rw-r--r-- | lib/Analysis/TargetTransformInfo.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/Analysis/TargetTransformInfo.cpp b/lib/Analysis/TargetTransformInfo.cpp index 029937397e..63f495a430 100644 --- a/lib/Analysis/TargetTransformInfo.cpp +++ b/lib/Analysis/TargetTransformInfo.cpp @@ -179,7 +179,9 @@ struct NoTTI : ImmutablePass, TargetTransformInfo { bool isLegalAddressingMode(Type *Ty, GlobalValue *BaseGV, int64_t BaseOffset, bool HasBaseReg, int64_t Scale) const { - return false; + // Guess that reg+reg addressing is allowed. This heuristic is taken from + // the implementation of LSR. + return !BaseGV && BaseOffset == 0 && Scale <= 1; } bool isTruncateFree(Type *Ty1, Type *Ty2) const { |