diff options
Diffstat (limited to 'lib/CodeGen/SimpleRegisterCoalescing.cpp')
| -rw-r--r-- | lib/CodeGen/SimpleRegisterCoalescing.cpp | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/lib/CodeGen/SimpleRegisterCoalescing.cpp b/lib/CodeGen/SimpleRegisterCoalescing.cpp index 74898c210a..8a102702ef 100644 --- a/lib/CodeGen/SimpleRegisterCoalescing.cpp +++ b/lib/CodeGen/SimpleRegisterCoalescing.cpp @@ -1038,9 +1038,7 @@ bool SimpleRegisterCoalescing::JoinCopy(CopyRec &TheCopy, bool &Again) { const TargetRegisterClass *RC = mri_->getRegClass(CP.getSrcReg()); unsigned Threshold = allocatableRCRegs_[RC].count() * 2; unsigned Length = li_->getApproximateInstructionCount(JoinVInt); - if (Length > Threshold && - std::distance(mri_->use_nodbg_begin(CP.getSrcReg()), - mri_->use_nodbg_end()) * Threshold < Length) { + if (Length > Threshold) { // Before giving up coalescing, if definition of source is defined by // trivial computation, try rematerializing it. if (!CP.isFlipped() && |