maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

Allow redefinition of reserved registers. 

llvm-svn: 71932
This commit is contained in:
Jakob Stoklund Olesen 2009-05-16 07:24:54 +00:00
parent b5c37ff57b
commit c482d14565
1 changed files with 3 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
llvm/lib/CodeGen/MachineVerifier.cpp
View File

@ -446,7 +446,8 @@ MachineVerifier::visitMachineInstrAfter(const MachineInstr *MI)
if (TargetRegisterInfo::isPhysicalRegister(*I)) {
// We allow double defines to physical registers with live
// super-registers.
if (!allowPhysDoubleDefs && !anySuperRegisters(regsLive, *I)) {
if (!allowPhysDoubleDefs && !isReserved(*I) &&
!anySuperRegisters(regsLive, *I)) {
report("Redefining a live physical register", MI);
*OS << "Register " << TRI->getName(*I)
<< " was defined but already live.\n";
@ -615,7 +616,7 @@ MachineVerifier::visitMachineFunctionAfter()
for (MachineBasicBlock::const_livein_iterator I = MFI->livein_begin(),
E = MFI->livein_end(); I != E; ++I) {
if (TargetRegisterInfo::isPhysicalRegister(*I) &&
!PrInfo.isLiveOut(*I)) {
!isReserved (*I) && !PrInfo.isLiveOut(*I)) {
report("Live-in physical register is not live-out from predecessor",
MFI);
*OS << "Register " << TRI->getName(*I)