llvm/test/CodeGen/AMDGPU/llvm.amdgcn.interp.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

30 lines
1.3 KiB
LLVM

;RUN: llc < %s -march=amdgcn -mcpu=verde -verify-machineinstrs | FileCheck --check-prefix=GCN %s
;RUN: llc < %s -march=amdgcn -mcpu=tonga -verify-machineinstrs | FileCheck --check-prefix=GCN %s
;GCN-LABEL: {{^}}v_interp:
;GCN-NOT: s_wqm
;GCN: s_mov_b32 m0, s{{[0-9]+}}
;GCN: v_interp_p1_f32
;GCN: v_interp_p2_f32
define amdgpu_ps void @v_interp(<16 x i8> addrspace(2)* inreg, <16 x i8> addrspace(2)* inreg, <32 x i8> addrspace(2)* inreg, i32 inreg, <2 x i32>) {
main_body:
%i = extractelement <2 x i32> %4, i32 0
%j = extractelement <2 x i32> %4, i32 1
%p0_0 = call float @llvm.amdgcn.interp.p1(i32 %i, i32 0, i32 0, i32 %3)
%p1_0 = call float @llvm.amdgcn.interp.p2(float %p0_0, i32 %j, i32 0, i32 0, i32 %3)
%p0_1 = call float @llvm.amdgcn.interp.p1(i32 %i, i32 1, i32 0, i32 %3)
%p1_1 = call float @llvm.amdgcn.interp.p2(float %p0_1, i32 %j, i32 1, i32 0, i32 %3)
call void @llvm.SI.export(i32 15, i32 1, i32 1, i32 0, i32 1, float %p0_0, float %p0_0, float %p1_1, float %p1_1)
ret void
}
; Function Attrs: nounwind readnone
declare float @llvm.amdgcn.interp.p1(i32, i32, i32, i32) #0
; Function Attrs: nounwind readnone
declare float @llvm.amdgcn.interp.p2(float, i32, i32, i32, i32) #0
declare void @llvm.SI.export(i32, i32, i32, i32, i32, float, float, float, float)
attributes #0 = { nounwind readnone }