2fc42c7163
This commits adds the first part of the output semantics. It only considers return values (and sret), but does not handle `inout` or `out` parameters yet. Those missing bits will reuse the same code, but will require additional testing & some fixups, so planning on adding them separately.
36 lines
1.5 KiB
HLSL
36 lines
1.5 KiB
HLSL
// RUN: %clang_cc1 -triple dxil-pc-shadermodel6.3-library -x hlsl -emit-llvm -finclude-default-header -disable-llvm-passes -o - %s | FileCheck %s --check-prefixes=CHECK-DX,CHECK
|
|
// RUN: %clang_cc1 -triple spirv-linux-vulkan-library -x hlsl -emit-llvm -finclude-default-header -disable-llvm-passes -o - %s | FileCheck %s --check-prefixes=CHECK-VK,CHECK
|
|
|
|
|
|
struct Input {
|
|
float Idx : SV_Position0;
|
|
float Gid : SV_Position1;
|
|
};
|
|
|
|
struct Output {
|
|
float a : A;
|
|
float b : B;
|
|
};
|
|
|
|
// Make sure SV_DispatchThreadID translated into dx.thread.id.
|
|
|
|
// CHECK-DX: define hidden void @_Z3foo5Input(ptr dead_on_unwind noalias writable sret(%struct.Output) align 1 %agg.result, ptr noundef byval(%struct.Input) align 1 %input)
|
|
// CHECK-VK: define hidden spir_func void @_Z3foo5Input(ptr dead_on_unwind noalias writable sret(%struct.Output) align 1 %agg.result, ptr noundef byval(%struct.Input) align 1 %input)
|
|
|
|
// CHECK: %Idx = getelementptr inbounds nuw %struct.Input, ptr %input, i32 0, i32 0
|
|
// CHECK: %[[#tmp:]] = load float, ptr %Idx, align 1
|
|
// CHECK: %a = getelementptr inbounds nuw %struct.Output, ptr %agg.result, i32 0, i32 0
|
|
// CHECK: store float %[[#tmp]], ptr %a, align 1
|
|
// CHECK: %Gid = getelementptr inbounds nuw %struct.Input, ptr %input, i32 0, i32 1
|
|
// CHECK: %[[#tmp:]] = load float, ptr %Gid, align 1
|
|
// CHECK: %b = getelementptr inbounds nuw %struct.Output, ptr %agg.result, i32 0, i32 1
|
|
// CHECK: store float %[[#tmp]], ptr %b, align 1
|
|
|
|
Output foo(Input input) {
|
|
Output o;
|
|
o.a = input.Idx;
|
|
o.b = input.Gid;
|
|
return o;
|
|
}
|
|
|