================
@@ -0,0 +1,46 @@
+// RUN: %clang_cc1 -std=hlsl2021 -finclude-default-header -triple \
+// RUN: dxil-pc-shadermodel6.3-compute %s -emit-llvm -disable-llvm-passes -o
- | \
+// RUN: FileCheck %s --check-prefixes=CHECK,CHECK-DXIL
+// RUN: %clang_cc1 -std=hlsl2021 -finclude-default-header -triple \
+// RUN: spirv-pc-vulkan-compute %s -emit-llvm -disable-llvm-passes -o - | \
+// RUN: FileCheck %s --check-prefixes=CHECK,CHECK-SPIRV
+
+// Test basic lowering to runtime function call.
+
+// CHECK-LABEL: test_int
+int test_int(int expr) {
+ // CHECK-SPIRV: %[[RET:.*]] = call spir_func [[TY:.*]]
@llvm.spv.quad.read.across.y.i32([[TY]] %[[#]])
+ // CHECK-DXIL: %[[RET:.*]] = call [[TY:.*]]
@llvm.dx.quad.read.across.y.i32([[TY]] %[[#]])
+ // CHECK: ret [[TY]] %[[RET]]
+ return QuadReadAcrossY(expr);
+}
+
+// CHECK-DXIL: declare [[TY]] @llvm.dx.quad.read.across.y.i32([[TY]])
#[[#attr:]]
+// CHECK-SPIRV: declare [[TY]] @llvm.spv.quad.read.across.y.i32([[TY]])
#[[#attr:]]
----------------
farzonl wrote:
this is fine, but we do have a means of reducing the number of target specific
check lines. See clang/test/CodeGenHLSL/builtins/dot.hlsl for an example:
```
// DXCHECK: %hlsl.dot = call i32 @llvm.[[ICF:dx]].sdot.v2i32(<2 x i32>
// SPVCHECK: %hlsl.dot = call i32 @llvm.[[ICF:spv]].sdot.v2i32(<2 x i32>
// CHECK: %hlsl.dot = call i32 @llvm.[[ICF]].sdot.v3i32(<3 x i32>
```
See how all successive checks just uses ICF after the first one?
https://github.com/llvm/llvm-project/pull/187440
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