================
@@ -603,6 +603,18 @@ unsigned TargetRegisterInfo::getSubRegIdxOffset(unsigned
Idx) const {
return SubRegIdxRanges[HwMode * getNumSubRegIndices() + Idx].Offset;
}
+unsigned TargetRegisterInfo::getSubRegIdxFromOffsetSize(unsigned Offset,
+ unsigned Size) const {
+ unsigned NumIdx = getNumSubRegIndices();
+ unsigned Base = HwMode * NumIdx;
+ for (unsigned Idx = 1; Idx < NumIdx; Idx++) {
+ if (SubRegIdxRanges[Base + Idx].Offset == Offset &&
+ SubRegIdxRanges[Base + Idx].Size == Size)
+ return Idx;
+ }
+ return 0;
----------------
cdevadas wrote:
```suggestion
return 0 /*NoSubRegister*/;
```
https://github.com/llvm/llvm-project/pull/174998
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