llvm/test/CodeGen/AMDGPU/llvm.amdgcn.mbcnt.ll
Nicolai Haehnle ea7a0c0467 AMDGPU: Add a shader calling convention
This makes it possible to distinguish between mesa shaders
and other kernels even in the presence of compute shaders.

Patch By: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>

Differential Revision: http://reviews.llvm.org/D18559

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265589 91177308-0d34-0410-b5e6-96231b3b80d8
2016-04-06 19:40:20 +00:00

25 lines
1.0 KiB
LLVM

;RUN: llc < %s -march=amdgcn -mcpu=verde -verify-machineinstrs | FileCheck --check-prefix=SI --check-prefix=GCN %s
;RUN: llc < %s -march=amdgcn -mcpu=tonga -verify-machineinstrs | FileCheck --check-prefix=VI --check-prefix=GCN %s
;GCN-LABEL: {{^}}mbcnt_intrinsics:
;GCN: v_mbcnt_lo_u32_b32_e64 [[LO:v[0-9]+]], -1, 0
;SI: v_mbcnt_hi_u32_b32_e32 {{v[0-9]+}}, -1, [[LO]]
;VI: v_mbcnt_hi_u32_b32_e64 {{v[0-9]+}}, -1, [[LO]]
define amdgpu_ps void @mbcnt_intrinsics(<16 x i8> addrspace(2)* inreg, <16 x i8> addrspace(2)* inreg, <32 x i8> addrspace(2)* inreg, i32 inreg) {
main_body:
%lo = call i32 @llvm.amdgcn.mbcnt.lo(i32 -1, i32 0) #1
%hi = call i32 @llvm.amdgcn.mbcnt.hi(i32 -1, i32 %lo) #1
%4 = bitcast i32 %hi to float
call void @llvm.SI.export(i32 15, i32 1, i32 1, i32 0, i32 1, float %4, float %4, float %4, float %4)
ret void
}
declare i32 @llvm.amdgcn.mbcnt.lo(i32, i32) #1
declare i32 @llvm.amdgcn.mbcnt.hi(i32, i32) #1
declare void @llvm.SI.export(i32, i32, i32, i32, i32, float, float, float, float)
attributes #1 = { nounwind readnone }