[llvm] [GlobalISel] Implement `llvm.memset.inline` (PR #203198)

[Nathan Corbyn via llvm-commits]

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In-Reply-To: <llvm.org/llvm/llvm-project/pull/203198 at github.com>


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@@ -2242,8 +2245,11 @@ bool llvm::canLowerMemCpyFamily(const MachineInstr &MI,
         DstPtrInfo.getAddrSpace(), SrcPtrInfo.getAddrSpace(),
         MF.getFunction().getAttributes(), TLI);
   }
-  case TargetOpcode::G_MEMSET: {
-    unsigned Limit = TLI.getMaxStoresPerMemset(OptSize);
+  case TargetOpcode::G_MEMSET:
+  case TargetOpcode::G_MEMSET_INLINE: {
+    unsigned Limit = Opc == TargetOpcode::G_MEMSET_INLINE
+                         ? std::numeric_limits<unsigned>::max()
+                         : TLI.getMaxStoresPerMemset(OptSize);
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cofibrant wrote:

This is the crucial piece so maybe worth adding a comment to explain

https://github.com/llvm/llvm-project/pull/203198