================
@@ -5021,6 +5024,36 @@ bool llvm::UpgradeDebugInfo(Module &M) {
return Modified;
}
+static void upgradeNVVMFnVectorAttr(const StringRef Attr, const char DimC,
+ GlobalValue *GV, const Metadata *V) {
+ Function *F = cast<Function>(GV);
+
+ constexpr StringLiteral DefaultValue = "1";
+ StringRef Vect3[3] = {DefaultValue, DefaultValue, DefaultValue};
+ unsigned Length = 0;
+
+ if (F->hasFnAttribute(Attr)) {
+ StringRef S = F->getFnAttribute(Attr).getValueAsString();
+ for (; Length < 3 && !S.empty(); Length++) {
+ auto [Part, Rest] = S.split(',');
+ Vect3[Length] = Part.trim();
+ S = Rest;
+ }
+ }
+
+ const uint64_t VInt = mdconst::extract<ConstantInt>(V)->getZExtValue();
+ const std::string VStr = llvm::utostr(VInt);
+
+ const unsigned Dim = DimC - 'x';
+ assert(Dim >= 0 && Dim < 3 && "Unexpected dim char");
----------------
AlexMaclean wrote:
We already checked to ensure the char is x, y or z before calling this
function. The assert here is just to double check assumptions. The subtraction
based implementation is a bit more efficient than using StringRef::find.
https://github.com/llvm/llvm-project/pull/127736
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