RPCS3/llvm
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm.git synced 2024-12-15 07:59:57 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Teach the machine code verifier to use getSubRegisterRegClass().

Browse Source 
The old approach was wrong. It had an off-by-one error.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104034 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen 2010-05-18 17:31:12 +00:00
parent 2ae4bfd769
commit 6a8d2c6119
1 changed files with 5 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
lib/CodeGen/MachineVerifier.cpp
View File

@ -635,11 +635,14 @@ MachineVerifier::visitMachineOperand(const MachineOperand *MO, unsigned MONum) {
// Virtual register.
const TargetRegisterClass *RC = MRI->getRegClass(Reg);
if (SubIdx) {
if (RC->subregclasses_begin()+SubIdx >= RC->subregclasses_end()) {
const TargetRegisterClass *SRC = RC->getSubRegisterRegClass(SubIdx);
if (!SRC) {
report("Invalid subregister index for virtual register", MO, MONum);
*OS << "Register class " << RC->getName()
<< " does not support subreg index " << SubIdx << "\n";
return;
}
RC = *(RC->subregclasses_begin()+SubIdx);
RC = SRC;
}
if (const TargetRegisterClass *DRC = TOI.getRegClass(TRI)) {
if (RC != DRC && !RC->hasSuperClass(DRC)) {