mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-30 21:29:28 +00:00
If the SI_KILL operand is constant, we can either clear the exec mask if the operand is negative, or do nothing otherwise. Reviewed-by: Tom Stellard <thomas.stellard@amd.com> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202337 91177308-0d34-0410-b5e6-96231b3b80d8
23 lines
608 B
LLVM
23 lines
608 B
LLVM
; RUN: llc < %s -march=r600 -mcpu=verde -verify-machineinstrs | FileCheck --check-prefix=SI %s
|
|
|
|
; SI-LABEL: @kill_gs_const
|
|
; SI-NOT: V_CMPX_LE_F32
|
|
; SI: S_MOV_B64 exec, 0
|
|
|
|
define void @kill_gs_const() #0 {
|
|
main_body:
|
|
%0 = icmp ule i32 0, 3
|
|
%1 = select i1 %0, float 1.000000e+00, float -1.000000e+00
|
|
call void @llvm.AMDGPU.kill(float %1)
|
|
%2 = icmp ule i32 3, 0
|
|
%3 = select i1 %2, float 1.000000e+00, float -1.000000e+00
|
|
call void @llvm.AMDGPU.kill(float %3)
|
|
ret void
|
|
}
|
|
|
|
declare void @llvm.AMDGPU.kill(float)
|
|
|
|
attributes #0 = { "ShaderType"="2" }
|
|
|
|
!0 = metadata !{metadata !"const", null, i32 1}
|