isSubRegOf() is a dup of isSubRegister.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43249 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/llvm/Target/MRegisterInfo.h b/include/llvm/Target/MRegisterInfo.h
index afcadc4..cfe304f 100644
--- a/include/llvm/Target/MRegisterInfo.h
+++ b/include/llvm/Target/MRegisterInfo.h
@@ -375,17 +375,6 @@
return get(RegNo).SuperRegs;
}
- /// isSubRegOf - Predicate which returns true if RegA is a sub-register of
- /// RegB. Returns false otherwise.
- ///
- bool isSubRegOf(unsigned RegA, unsigned RegB) const {
- const TargetRegisterDesc &RD = (*this)[RegA];
- for (const unsigned *reg = RD.SuperRegs; *reg != 0; ++reg)
- if (*reg == RegB)
- return true;
- return false;
- }
-
/// getName - Return the symbolic target specific name for the specified
/// physical register.
const char *getName(unsigned RegNo) const {
diff --git a/lib/CodeGen/LowerSubregs.cpp b/lib/CodeGen/LowerSubregs.cpp
index ba2a193..1b7f70e 100644
--- a/lib/CodeGen/LowerSubregs.cpp
+++ b/lib/CodeGen/LowerSubregs.cpp
@@ -146,7 +146,7 @@
// of the destination, we copy the subreg into the source
// However, this is only safe if the insert instruction is the kill
// of the source register
- bool revCopyOrder = MRI.isSubRegOf(InsReg, DstReg);
+ bool revCopyOrder = MRI.isSubRegister(DstReg, InsReg);
if (revCopyOrder && InsReg != DstSubReg) {
if (MI->getOperand(1).isKill()) {
DstSubReg = MRI.getSubReg(SrcReg, SubIdx);