6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-12-28 19:31:58 +00:00
Code Issues Projects Releases Wiki Activity

Invalidate last use of a reused register if the use is a deleted noop copy.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34839 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng 2007-03-02 05:41:42 +00:00
parent 82932a5e4a
commit c3dd314b78
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
lib/CodeGen/VirtRegMap.cpp
View File

@ -937,6 +937,7 @@ void LocalSpiller::RewriteMBB(MachineBasicBlock &MBB, VirtRegMap &VRM) {
DOUT << "Removing now-noop copy: " << MI; DOUT << "Removing now-noop copy: " << MI;
MBB.erase(&MI); MBB.erase(&MI);
VRM.RemoveFromFoldedVirtMap(&MI); VRM.RemoveFromFoldedVirtMap(&MI);
Spills.UpdateLastUse(Src, NULL);
Spills.disallowClobberPhysReg(VirtReg); Spills.disallowClobberPhysReg(VirtReg);
goto ProcessNextInst; goto ProcessNextInst;
} }