[llvm] [CodeGen][RISCV][AArch64] Added signed extension support to TypePromotion (PR #226304)

[Ananth Jasty via llvm-commits]

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@@ -243,7 +249,8 @@ bool TypePromotionImpl::isSource(Value *V) {
   else if (isa<LoadInst>(V))
     return true;
   else if (auto *Call = dyn_cast<CallInst>(V))
-    return Call->hasRetAttr(Attribute::AttrKind::ZExt);
+    return (Call->hasRetAttr(Attribute::AttrKind::ZExt) ||
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bbbill42 wrote:

I can get that back if I thread UseSExt through the chain, considering it.

https://github.com/llvm/llvm-project/pull/226304