Uncomment assertions that register# != 0 on calls to
MRegisterInfo::is{Physical,Virtual}Register. Apply appropriate fixes
to relevant files.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11882 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86ISelSimple.cpp b/lib/Target/X86/X86ISelSimple.cpp
index 34ffb67..2c247c2 100644
--- a/lib/Target/X86/X86ISelSimple.cpp
+++ b/lib/Target/X86/X86ISelSimple.cpp
@@ -696,14 +696,15 @@
for (MachineFunction::iterator BB = F->begin(), E = F->end(); BB != E; ++BB) {
for (MachineBasicBlock::iterator I = BB->begin(), E = BB->end(); I!=E; ++I)
- for (unsigned i = 0, e = I->getNumOperands(); i != e; ++i)
- if (I->getOperand(i).isRegister()) {
- unsigned Reg = I->getOperand(i).getReg();
+ for (unsigned i = 0, e = I->getNumOperands(); i != e; ++i) {
+ MachineOperand& MO = I->getOperand(i);
+ if (MO.isRegister() && MO.getReg()) {
+ unsigned Reg = MO.getReg();
if (MRegisterInfo::isVirtualRegister(Reg))
if (RegMap.getRegClass(Reg)->getSize() == 10)
goto UsesFPReg;
}
-
+ }
// If we haven't found an FP register use or def in this basic block, check
// to see if any of our successors has an FP PHI node, which will cause a
// copy to be inserted into this block.