3757ecf5f1
Lower the `SV_GroupIndex` semantic as the `llvm.spv.flattened.thread.id.in.group` intrinsic. Depends on #130670. --------- Co-authored-by: Steven Perron <stevenperron@google.com>
25 lines
1.1 KiB
HLSL
25 lines
1.1 KiB
HLSL
// RUN: %clang_cc1 -triple dxil-pc-shadermodel6.0-compute -x hlsl -emit-llvm -disable-llvm-passes -o - -hlsl-entry main %s | FileCheck %s --check-prefixes=CHECK,CHECK-DXIL -DTARGET=dx
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// RUN: %clang_cc1 -triple spirv-unknown-vulkan-compute -x hlsl -emit-llvm -disable-llvm-passes -o - -hlsl-entry main %s | FileCheck %s --check-prefixes=CHECK,CHECK-SPIRV -DTARGET=spv
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[numthreads(1,1,1)]
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void main(unsigned GI : SV_GroupIndex) {
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main(GI - 1);
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}
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// For HLSL entry functions, we are generating a C-export function that wraps
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// the C++-mangled entry function. The wrapper function can be used to populate
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// semantic parameters and provides the expected void(void) signature that
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// drivers expect for entry points.
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// CHECK: define void @main() #[[#ENTRY_ATTR:]] {
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// CHECK: entry:
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// CHECK: %[[#ID_X:]] = call i32 @llvm.[[TARGET]].flattened.thread.id.in.group()
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// CHECK-DXIL: call void @_Z4mainj(i32 %[[#ID_X]])
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// CHECK-SPIRV: call spir_func void @_Z4mainj(i32 %[[#ID_X]])
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// CHECK: ret void
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// CHECK: }
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// Verify that the entry had the expected dx.shader attribute
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// CHECK: attributes #[[#ENTRY_ATTR]] = { {{.*}}"hlsl.shader"="compute"{{.*}} }
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