[spirv][amdgpu] Set atomic size in the clang target info

JonChesterfield · JonChesterfield · commit a703b8540718 · 2025-02-24T20:39:35.000Z
diff --git a/clang/lib/Basic/Targets/SPIR.h b/clang/lib/Basic/Targets/SPIR.h
@@ -399,6 +399,8 @@ class LLVM_LIBRARY_VISIBILITY SPIRV64AMDGCNTargetInfo final
     HasLegalHalfType = true;
     HasFloat16 = true;
     HalfArgsAndReturns = true;
+
+    MaxAtomicPromoteWidth = MaxAtomicInlineWidth = 64;
   }
 
   bool hasBFloat16Type() const override { return true; }

Original file line number	Diff line number	Diff line change
`@@ -399,6 +399,8 @@ class LLVM_LIBRARY_VISIBILITY SPIRV64AMDGCNTargetInfo final`
`399`	`399`	`HasLegalHalfType = true;`
`400`	`400`	`HasFloat16 = true;`
`401`	`401`	`HalfArgsAndReturns = true;`
	`402`	`+`
	`403`	`+ MaxAtomicPromoteWidth = MaxAtomicInlineWidth = 64;`
`402`	`404`	`}`
`403`	`405`
`404`	`406`	`bool hasBFloat16Type() const override { return true; }`