6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-04-06 09:44:39 +00:00
Code Issues Projects Releases Wiki Activity

It's not safe to propagate implicit_def that defines part of a register.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103436 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng 2010-05-10 21:25:30 +00:00
parent fc6e6a9b3b
commit 9cc9bfaf86
1 changed files with 2 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
lib/CodeGen/ProcessImplicitDefs.cpp
View File

@ -89,6 +89,8 @@ bool ProcessImplicitDefs::runOnMachineFunction(MachineFunction &fn) {
MachineInstr *MI = &*I;
++I;
if (MI->isImplicitDef()) {
if (MI->getOperand(0).getSubReg())
continue;
unsigned Reg = MI->getOperand(0).getReg();
ImpDefRegs.insert(Reg);
if (TargetRegisterInfo::isPhysicalRegister(Reg)) {