diff options
Diffstat (limited to 'test/CodeGen/AMDGPU/function-args.ll')
| -rw-r--r-- | test/CodeGen/AMDGPU/function-args.ll | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/test/CodeGen/AMDGPU/function-args.ll b/test/CodeGen/AMDGPU/function-args.ll index 48d94465c131..71541b295537 100644 --- a/test/CodeGen/AMDGPU/function-args.ll +++ b/test/CodeGen/AMDGPU/function-args.ll @@ -739,6 +739,45 @@ define void @void_func_v32i32_v16i32_v16f32(<32 x i32> %arg0, <16 x i32> %arg1, ret void } +; Make sure v3 isn't a wasted register because of v3 types being promoted to v4 +; GCN-LABEL: {{^}}void_func_v3f32_wasted_reg: +; GCN: s_waitcnt +; GCN: ds_write_b32 v{{[0-9]+}}, v0 +; GCN-NEXT: ds_write_b32 v{{[0-9]+}}, v1 +; GCN-NEXT: ds_write_b32 v{{[0-9]+}}, v2 +; GCN-NEXT: ds_write_b32 v{{[0-9]+}}, v3 +; GCN-NEXT: s_waitcnt +; GCN-NEXT: s_setpc_b64 +define void @void_func_v3f32_wasted_reg(<3 x float> %arg0, i32 %arg1) #0 { + %arg0.0 = extractelement <3 x float> %arg0, i32 0 + %arg0.1 = extractelement <3 x float> %arg0, i32 1 + %arg0.2 = extractelement <3 x float> %arg0, i32 2 + store volatile float %arg0.0, float addrspace(3)* undef + store volatile float %arg0.1, float addrspace(3)* undef + store volatile float %arg0.2, float addrspace(3)* undef + store volatile i32 %arg1, i32 addrspace(3)* undef + ret void +} + +; GCN-LABEL: {{^}}void_func_v3i32_wasted_reg: +; GCN: s_waitcnt +; GCN: ds_write_b32 v{{[0-9]+}}, v0 +; GCN-NEXT: ds_write_b32 v{{[0-9]+}}, v1 +; GCN-NEXT: ds_write_b32 v{{[0-9]+}}, v2 +; GCN-NEXT: ds_write_b32 v{{[0-9]+}}, v3 +; GCN-NEXT: s_waitcnt +; GCN-NEXT: s_setpc_b64 +define void @void_func_v3i32_wasted_reg(<3 x i32> %arg0, i32 %arg1) #0 { + %arg0.0 = extractelement <3 x i32> %arg0, i32 0 + %arg0.1 = extractelement <3 x i32> %arg0, i32 1 + %arg0.2 = extractelement <3 x i32> %arg0, i32 2 + store volatile i32 %arg0.0, i32 addrspace(3)* undef + store volatile i32 %arg0.1, i32 addrspace(3)* undef + store volatile i32 %arg0.2, i32 addrspace(3)* undef + store volatile i32 %arg1, i32 addrspace(3)* undef + ret void +} + ; Check there is no crash. ; GCN-LABEL: {{^}}void_func_v16i8: define void @void_func_v16i8(<16 x i8> %arg0) #0 { |