35 lines
1.5 KiB
LLVM
35 lines
1.5 KiB
LLVM
|
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 3
|
||
|
|
; RUN: llc -mtriple amdgcn-amdhsa -mcpu=fiji -amdgpu-scalarize-global-loads -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s
|
||
|
|
|
||
|
|
declare i32 @llvm.amdgcn.workitem.id.x()
|
||
|
|
declare i32 @llvm.amdgcn.readfirstlane(i32)
|
||
|
|
|
||
|
|
define amdgpu_kernel void @readfirstlane_uniform(ptr addrspace(1) noalias nocapture readonly, ptr addrspace(1) noalias nocapture readonly) {
|
||
|
|
; GCN-LABEL: readfirstlane_uniform:
|
||
|
|
; GCN: ; %bb.0:
|
||
|
|
; GCN-NEXT: s_load_dwordx4 s[0:3], s[4:5], 0x0
|
||
|
|
; GCN-NEXT: v_readfirstlane_b32 s4, v0
|
||
|
|
; GCN-NEXT: s_mov_b32 s5, 0
|
||
|
|
; GCN-NEXT: s_lshl_b64 s[4:5], s[4:5], 2
|
||
|
|
; GCN-NEXT: s_waitcnt lgkmcnt(0)
|
||
|
|
; GCN-NEXT: s_add_u32 s0, s0, s4
|
||
|
|
; GCN-NEXT: s_addc_u32 s1, s1, s5
|
||
|
|
; GCN-NEXT: s_load_dword s4, s[0:1], 0x0
|
||
|
|
; GCN-NEXT: s_add_u32 s0, s2, 40
|
||
|
|
; GCN-NEXT: s_addc_u32 s1, s3, 0
|
||
|
|
; GCN-NEXT: v_mov_b32_e32 v0, s0
|
||
|
|
; GCN-NEXT: v_mov_b32_e32 v1, s1
|
||
|
|
; GCN-NEXT: s_waitcnt lgkmcnt(0)
|
||
|
|
; GCN-NEXT: v_mov_b32_e32 v2, s4
|
||
|
|
; GCN-NEXT: flat_store_dword v[0:1], v2
|
||
|
|
; GCN-NEXT: s_endpgm
|
||
|
|
%tid = tail call i32 @llvm.amdgcn.workitem.id.x()
|
||
|
|
%scalar = tail call i32 @llvm.amdgcn.readfirstlane(i32 %tid)
|
||
|
|
%idx = zext i32 %scalar to i64
|
||
|
|
%gep0 = getelementptr inbounds float, ptr addrspace(1) %0, i64 %idx
|
||
|
|
%val = load float, ptr addrspace(1) %gep0, align 4
|
||
|
|
%gep1 = getelementptr inbounds float, ptr addrspace(1) %1, i64 10
|
||
|
|
store float %val, ptr addrspace(1) %gep1, align 4
|
||
|
|
ret void
|
||
|
|
}
|