6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-07-24 06:25:18 +00:00
Code Issues Projects Releases Wiki Activity

[SystemZ] Add comparisons of large immediates using high words

Browse Source 
There are no corresponding patterns for small immediates because they would
prevent the use of fused compare-and-branch instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191775 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Richard Sandiford
2013-10-01 14:56:23 +00:00
parent ad366a3f67
commit 185ef05ad6
7 changed files with 134 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
lib/Target/SystemZ/SystemZInstrInfo.cpp
View File

@@ -966,6 +966,14 @@ SystemZInstrInfo::expandPostRAPseudo(MachineBasicBlock::iterator MI) const {
expandRIPseudo(MI, SystemZ::AFI, SystemZ::AIH, false);
return true;
case SystemZ::CFIMux:
expandRIPseudo(MI, SystemZ::CFI, SystemZ::CIH, false);
return true;
case SystemZ::CLFIMux:
expandRIPseudo(MI, SystemZ::CLFI, SystemZ::CLIH, false);
return true;
case SystemZ::RISBMux: {
bool DestIsHigh = isHighReg(MI->getOperand(0).getReg());
bool SrcIsHigh = isHighReg(MI->getOperand(2).getReg());