[clang] [llvm] [mlir] IR: Promote "denormal-fp-math" to a first class attribute (PR #174293)

[Nikita Popov via cfe-commits]

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@@ -944,6 +944,21 @@ def LLVM_MemoryEffectsAttr : LLVM_Attr<"MemoryEffects", "memory_effects"> {
   let assemblyFormat = "`<` struct(params) `>`";
 }
 
+//===----------------------------------------------------------------------===//
+// DenormalFPEnvAttr
+//===----------------------------------------------------------------------===//
+
+def LLVM_DenormalFPEnvAttr : LLVM_Attr<"DenormalFPEnv", "denormal_fpenv"> {
+  let parameters = (ins "DenormalModeKind":$default_output_mode,
+                        "DenormalModeKind":$default_input_mode,
+                        "DenormalModeKind":$float_output_mode,
+                        "DenormalModeKind":$float_input_mode);
+  let extraClassDeclaration = [{
+     bool isReadWrite();
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nikic wrote:

Shouldn't be there, this is MemoryEffects specific.

https://github.com/llvm/llvm-project/pull/174293