[clang] [CIR][AMDGPU] Add lowering for amdgcn ds swizzle builtin. (PR #196011)

[via cfe-commits]

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@@ -161,7 +161,16 @@ CIRGenFunction::emitAMDGPUBuiltinExpr(unsigned builtinId,
                              .getResult();
     return result;
   }
-  case AMDGPU::BI__builtin_amdgcn_ds_swizzle:
+  case AMDGPU::BI__builtin_amdgcn_ds_swizzle: {
+    mlir::Value src0 = emitScalarExpr(expr->getArg(0));
+    mlir::Value src1 = emitScalarExpr(expr->getArg(1));
+    mlir::Value result = cir::LLVMIntrinsicCallOp::create(
+                             builder, getLoc(expr->getExprLoc()),
+                             builder.getStringAttr("amdgcn.ds.swizzle"),
+                             src0.getType(), {src0, src1})
+                             .getResult();
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skc7 wrote:

Updated in latest patch. Thanks.

https://github.com/llvm/llvm-project/pull/196011