[Mlir-commits] [mlir] [MLIR][ROCDL] Add math.clampf -> rocdl.fmed3 conversion (PR #163259)

[Keshav Vinayak Jha]

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@@ -42,8 +43,39 @@ static void populateOpPatterns(const LLVMTypeConverter &converter,
                                            f32ApproxFunc, f16Func);
 }
 
+struct ClampFOpConversion final
+    : public ConvertOpToLLVMPattern<math::ClampFOp> {
+  using ConvertOpToLLVMPattern::ConvertOpToLLVMPattern;
+  ClampFOpConversion(const LLVMTypeConverter &converter,
+                     amdgpu::Chipset chipset)
+      : ConvertOpToLLVMPattern<math::ClampFOp>(converter), chipset(chipset) {}
+
+  LogicalResult
+  matchAndRewrite(math::ClampFOp op, OpAdaptor adaptor,
+                  ConversionPatternRewriter &rewriter) const override {
+    // V_MED3_F16/F32 only exists in gfx9+ artchitectures
+    if (chipset.majorVersion < 9) {
+      return rewriter.notifyMatchFailure(
+          op, ("pre-gfx9 (gfx" + std::to_string(chipset.majorVersion) +
+               "): V_MED_F16 / V_MED3_F32 not supported."));
+    }
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keshavvinayak01 wrote:

Oh I see what you mean, misunderstood your previous comment. Making that change.

https://github.com/llvm/llvm-project/pull/163259