23 lines
845 B
HLSL
23 lines
845 B
HLSL
// RUN: %clang_cc1 -triple dxil-pc-shadermodel6.0-compute -x hlsl -emit-llvm -disable-llvm-passes -o - -hlsl-entry main %s
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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-NEXT: entry:
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//CHECK-NEXT: %0 = call i32 @llvm.dx.flattened.thread.id.in.group()
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//CHECK-NEXT: call void @"?main@@YAXI@Z"(i32 %0)
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//CHECK-NEXT: ret void
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//CHECK-NEXT: }
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// Verify that the entry had the expected dx.shader attribute
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//CHECK: attributes #[[ENTRY_ATTR]] = { {{.*}}"dx.shader"="compute"{{.*}} }
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