diff options
| author | Chris Lattner <sabre@nondot.org> | 2005-07-28 05:23:43 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2005-07-28 05:23:43 +0000 |
| commit | 988b1dd608ed596879e29ad27d4aafdbf3a8f1ac (patch) | |
| tree | 2164500f4618e6c1341e63e064ef2dbd37baef83 /lib/Target/PowerPC/PPCISelPattern.cpp | |
| parent | 4015ea871113165cbf2d0d9b7513fd90e5ddaf46 (diff) | |
Eliminate an extra copy from R1 that Nate noticed on function calls that
have to write arguments to the stack
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22536 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/PowerPC/PPCISelPattern.cpp')
| -rw-r--r-- | lib/Target/PowerPC/PPCISelPattern.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/Target/PowerPC/PPCISelPattern.cpp b/lib/Target/PowerPC/PPCISelPattern.cpp index efdb8b5b28..c544e4d7fd 100644 --- a/lib/Target/PowerPC/PPCISelPattern.cpp +++ b/lib/Target/PowerPC/PPCISelPattern.cpp @@ -1293,7 +1293,8 @@ unsigned ISel::SelectExpr(SDOperand N, bool Recording) { MVT::ValueType DestType = N.getValueType(); if (Node->getOpcode() == ISD::CopyFromReg && - MRegisterInfo::isVirtualRegister(cast<RegSDNode>(Node)->getReg())) + (MRegisterInfo::isVirtualRegister(cast<RegSDNode>(Node)->getReg()) || + cast<RegSDNode>(Node)->getReg() == PPC::R1)) // Just use the specified register as our input. return cast<RegSDNode>(Node)->getReg(); |