diff options
| author | Evan Cheng <evan.cheng@apple.com> | 2007-12-20 02:23:25 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2007-12-20 02:23:25 +0000 |
| commit | a509537e25be59785062c2b181374e74619c246d (patch) | |
| tree | 6aee90b6965cb5cd6d6e1f0a2d9e7297d978aba0 /llvm/lib/CodeGen/SimpleRegisterCoalescing.cpp | |
| parent | 61bc51ee978cf81f1e0bde06e327099b681e0b0b (diff) | |
| download | bcm5719-llvm-a509537e25be59785062c2b181374e74619c246d.tar.gz bcm5719-llvm-a509537e25be59785062c2b181374e74619c246d.zip | |
The physical register + virtual register joining requirement was much too strict.
llvm-svn: 45253
Diffstat (limited to 'llvm/lib/CodeGen/SimpleRegisterCoalescing.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/SimpleRegisterCoalescing.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/SimpleRegisterCoalescing.cpp b/llvm/lib/CodeGen/SimpleRegisterCoalescing.cpp index c608b8d1c4a..c03933944f8 100644 --- a/llvm/lib/CodeGen/SimpleRegisterCoalescing.cpp +++ b/llvm/lib/CodeGen/SimpleRegisterCoalescing.cpp @@ -396,7 +396,7 @@ bool SimpleRegisterCoalescing::JoinCopy(CopyRec TheCopy, bool &Again) { unsigned JoinVReg = SrcIsPhys ? repDstReg : repSrcReg; unsigned JoinPReg = SrcIsPhys ? repSrcReg : repDstReg; const TargetRegisterClass *RC = mf_->getSSARegMap()->getRegClass(JoinVReg); - unsigned Threshold = allocatableRCRegs_[RC].count(); + unsigned Threshold = allocatableRCRegs_[RC].count() * 2; if (TheCopy.isBackEdge) Threshold *= 2; // Favors back edge copies. |
