6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-03-21 18:31:36 +00:00
Code Issues Projects Releases Wiki Activity

Skip dbg_value instructions when scanning instructions in register scavenging.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105481 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Grosbach 2010-06-04 20:18:30 +00:00
parent c87b40b1cd
commit 1c8ab781d5
1 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
lib/CodeGen/RegisterScavenging.cpp
View File

@ -258,6 +258,10 @@ unsigned RegScavenger::findSurvivorReg(MachineBasicBlock::iterator StartMI,
bool inVirtLiveRange = false;
for (++MI; InstrLimit > 0 && MI != ME; ++MI, --InstrLimit) {
if (MI->isDebugValue()) {
++InstrLimit; // Don't count debug instructions
continue;
}
bool isVirtKillInsn = false;
bool isVirtDefInsn = false;
// Remove any candidates touched by instruction.