| // RUN: %clang_cc1 -triple dxil-pc-shadermodel6.0-compute -x hlsl -emit-llvm -disable-llvm-passes -o - -hlsl-entry main %s |
| |
| [numthreads(1,1,1)] |
| void main(unsigned GI : SV_GroupIndex) { |
| main(GI - 1); |
| } |
| |
| // For HLSL entry functions, we are generating a C-export function that wraps |
| // the C++-mangled entry function. The wrapper function can be used to populate |
| // semantic parameters and provides the expected void(void) signature that |
| // drivers expect for entry points. |
| |
| //CHECK: define void @main() #[[ENTRY_ATTR:#]]{ |
| //CHECK-NEXT: entry: |
| //CHECK-NEXT: %0 = call i32 @llvm.dx.flattened.thread.id.in.group() |
| //CHECK-NEXT: call void @"?main@@YAXI@Z"(i32 %0) |
| //CHECK-NEXT: ret void |
| //CHECK-NEXT: } |
| |
| // Verify that the entry had the expected dx.shader attribute |
| |
| //CHECK: attributes #[[ENTRY_ATTR]] = { {{.*}}"dx.shader"="compute"{{.*}} } |
