29 lines
1.4 KiB
LLVM
29 lines
1.4 KiB
LLVM
|
; RUN: llc -march=amdgcn -mcpu=tahiti -start-after=sink -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefix=GCN %s
|
||
|
|
; RUN: llc -enable-no-signed-zeros-fp-math -march=amdgcn -mcpu=tahiti -start-after=sink -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefix=GCN %s
|
||
|
|
|
||
|
|
; --------------------------------------------------------------------------------
|
||
|
|
; rcp_legacy tests
|
||
|
|
; --------------------------------------------------------------------------------
|
||
|
|
|
||
|
|
; GCN-LABEL: {{^}}v_fneg_rcp_legacy_f32:
|
||
|
|
; GCN: {{buffer|flat}}_load_dword [[A:v[0-9]+]]
|
||
|
|
; GCN: v_rcp_legacy_f32_e64 [[RESULT:v[0-9]+]], -[[A]]
|
||
|
|
; GCN: {{buffer|flat}}_store_dword [[RESULT]]
|
||
|
|
define amdgpu_kernel void @v_fneg_rcp_legacy_f32(float addrspace(1)* %out, float addrspace(1)* %a.ptr) #0 {
|
||
|
|
%tid = call i32 @llvm.amdgcn.workitem.id.x()
|
||
|
|
%tid.ext = sext i32 %tid to i64
|
||
|
|
%a.gep = getelementptr inbounds float, float addrspace(1)* %a.ptr, i64 %tid.ext
|
||
|
|
%out.gep = getelementptr inbounds float, float addrspace(1)* %out, i64 %tid.ext
|
||
|
|
%a = load volatile float, float addrspace(1)* %a.gep
|
||
|
|
%rcp = call float @llvm.amdgcn.rcp.legacy(float %a)
|
||
|
|
%fneg = fsub float -0.000000e+00, %rcp
|
||
|
|
store float %fneg, float addrspace(1)* %out.gep
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
declare i32 @llvm.amdgcn.workitem.id.x() #1
|
||
|
|
declare float @llvm.amdgcn.rcp.legacy(float) #1
|
||
|
|
|
||
|
|
attributes #0 = { nounwind }
|
||
|
|
attributes #1 = { nounwind readnone }
|