================
@@ -0,0 +1,47 @@
+; RUN: llc -O0 -verify-machineinstrs -mtriple=spirv-unknown-vulkan %s -o - |
FileCheck %s
+; RUN: %if spirv-tools %{ llc -O0 -mtriple=spirv-unknown-vulkan %s -o -
-filetype=obj | spirv-val %}
+
+; CHECK-DAG: %[[#float_32:]] = OpTypeFloat 32
+; CHECK-DAG: %[[#float_16:]] = OpTypeFloat 16
+
+; CHECK-DAG: %[[#vec4_float_32:]] = OpTypeVector %[[#float_32]] 4
+; CHECK-DAG: %[[#vec4_float_16:]] = OpTypeVector %[[#float_16]] 4
+
+define noundef float @ddx_coarse_float(float noundef %a) {
+entry:
+; CHECK: %[[#float_32_arg:]] = OpFunctionParameter %[[#float_32]]
+; CHECK: %[[#]] = OpDPdxCoarse %[[#float_32]] %[[#float_32_arg]]
+ %elt.ddx.coarse = call float @llvm.spv.ddx.coarse.f32(float %a)
+ ret float %elt.ddx.coarse
+}
+
+define noundef half @ddx_coarse_half(half noundef %a) {
+entry:
+; CHECK: %[[#float_16_arg:]] = OpFunctionParameter %[[#float_16]]
+; CHECK: %[[#converted:]] = OpFConvert %[[#float_32:]] %[[#float_16_arg]]
+; CHECK: %[[#coarse:]] = OpDPdxCoarse %[[#float_32]] %[[#converted]]
+; CHECK: %[[#]] = OpFConvert %[[#float_16]] %[[#coarse]]
+ %elt.ddx.coarse = call half @llvm.spv.ddx.coarse.f16(half %a)
+ ret half %elt.ddx.coarse
+}
+
+define noundef <4 x float> @ddx_coarse_float_vector(<4 x float> noundef %a) {
+entry:
+; CHECK: %[[#vec4_float_32_arg:]] = OpFunctionParameter %[[#vec4_float_32]]
+; CHECK: %[[#]] = OpDPdxCoarse %[[#vec4_float_32]] %[[#vec4_float_32_arg]]
+ %elt.ddx.coarse = call <4 x float> @llvm.spv.ddx.coarse.v4f32(<4 x float> %a)
+ ret <4 x float> %elt.ddx.coarse
+}
+
+define noundef <4 x half> @ddx_coarse_half_vector(<4 x half> noundef %a) {
+entry:
+; CHECK: %[[#vec4_float_16_arg:]] = OpFunctionParameter %[[#vec4_float_16]]
+; CHECK: %[[#converted:]] = OpFConvert %[[#vec4_float_32:]]
%[[#vec4_float_16_arg]]
+; CHECK: %[[#coarse:]] = OpDPdxCoarse %[[#vec4_float_32]] %[[#converted]]
+; CHECK: %[[#]] = OpFConvert %[[#vec4_float_16]] %[[#coarse]]
+ %elt.ddx.coarse = call <4 x half> @llvm.spv.ddx.coarse.v4f16(<4 x half> %a)
+ ret <4 x half> %elt.ddx.coarse
+}
+
+declare float @llvm.spv.ddx.coarse.f32(float)
+declare half @llvm.spv.ddx.coarse.f16(half)
----------------
farzonl wrote:
new line is still needed
https://github.com/llvm/llvm-project/pull/164831
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