6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-06-13 04:38:24 +00:00
Code Issues Projects Releases Wiki Activity

Transfer regmasks to MRI.

Browse Source 
MRI keeps track of which physregs have been used. Make sure it gets
updated with all the regmask-clobbered registers.

Delete the closePhysRegsUsed() function which isn't necessary.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150830 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen
2012-02-17 19:07:56 +00:00
parent dbe266be35
commit d9f0ff56a1
4 changed files with 29 additions and 21 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
lib/CodeGen/VirtRegMap.cpp
View File

@ -127,6 +127,11 @@ void VirtRegMap::rewrite(SlotIndexes *Indexes) {
for (MachineInstr::mop_iterator MOI = MI->operands_begin(),
MOE = MI->operands_end(); MOI != MOE; ++MOI) {
MachineOperand &MO = *MOI;
// Make sure MRI knows about registers clobbered by regmasks.
if (MO.isRegMask())
MRI->addPhysRegsUsedFromRegMask(MO.getRegMask());
if (!MO.isReg() || !TargetRegisterInfo::isVirtualRegister(MO.getReg()))
continue;
unsigned VirtReg = MO.getReg();