| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: opt -S -codegenprepare -mtriple=amdgcn-amd-amdhsa -mcpu=gfx908 < %s | FileCheck -check-prefix=OPT %s |
| ; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx908 < %s | FileCheck -check-prefix=GCN %s |
| |
| ; Make sure we match the addressing mode offset of globla.atomic.fadd intrinsics across blocks. |
| |
| define amdgpu_kernel void @test_sink_small_offset_global_atomic_fadd_f32(float addrspace(1)* %out, float addrspace(1)* %in) { |
| ; OPT-LABEL: @test_sink_small_offset_global_atomic_fadd_f32( |
| ; OPT-NEXT: entry: |
| ; OPT-NEXT: [[OUT_GEP:%.*]] = getelementptr float, float addrspace(1)* [[OUT:%.*]], i32 999999 |
| ; OPT-NEXT: [[TID:%.*]] = call i32 @llvm.amdgcn.mbcnt.lo(i32 -1, i32 0) [[ATTR3:#.*]] |
| ; OPT-NEXT: [[CMP:%.*]] = icmp eq i32 [[TID]], 0 |
| ; OPT-NEXT: br i1 [[CMP]], label [[ENDIF:%.*]], label [[IF:%.*]] |
| ; OPT: if: |
| ; OPT-NEXT: [[TMP0:%.*]] = bitcast float addrspace(1)* [[IN:%.*]] to i8 addrspace(1)* |
| ; OPT-NEXT: [[SUNKADDR:%.*]] = getelementptr i8, i8 addrspace(1)* [[TMP0]], i64 28 |
| ; OPT-NEXT: [[TMP1:%.*]] = bitcast i8 addrspace(1)* [[SUNKADDR]] to float addrspace(1)* |
| ; OPT-NEXT: [[FADD2:%.*]] = call float @llvm.amdgcn.global.atomic.fadd.f32.p1f32.f32(float addrspace(1)* [[TMP1]], float 2.000000e+00) |
| ; OPT-NEXT: [[VAL:%.*]] = load volatile float, float addrspace(1)* undef, align 4 |
| ; OPT-NEXT: br label [[ENDIF]] |
| ; OPT: endif: |
| ; OPT-NEXT: [[X:%.*]] = phi float [ [[VAL]], [[IF]] ], [ 0.000000e+00, [[ENTRY:%.*]] ] |
| ; OPT-NEXT: store float [[X]], float addrspace(1)* [[OUT_GEP]], align 4 |
| ; OPT-NEXT: ret void |
| ; |
| ; GCN-LABEL: test_sink_small_offset_global_atomic_fadd_f32: |
| ; GCN: ; %bb.0: ; %entry |
| ; GCN-NEXT: s_load_dwordx4 s[0:3], s[4:5], 0x0 |
| ; GCN-NEXT: v_mbcnt_lo_u32_b32 v0, -1, 0 |
| ; GCN-NEXT: v_cmp_ne_u32_e32 vcc, 0, v0 |
| ; GCN-NEXT: v_mov_b32_e32 v0, 0 |
| ; GCN-NEXT: s_and_saveexec_b64 s[4:5], vcc |
| ; GCN-NEXT: s_cbranch_execz .LBB0_2 |
| ; GCN-NEXT: ; %bb.1: ; %if |
| ; GCN-NEXT: v_mov_b32_e32 v0, 0 |
| ; GCN-NEXT: v_mov_b32_e32 v1, 2.0 |
| ; GCN-NEXT: s_waitcnt lgkmcnt(0) |
| ; GCN-NEXT: global_atomic_add_f32 v0, v1, s[2:3] offset:28 |
| ; GCN-NEXT: global_load_dword v0, v[0:1], off glc |
| ; GCN-NEXT: s_waitcnt vmcnt(0) |
| ; GCN-NEXT: .LBB0_2: ; %endif |
| ; GCN-NEXT: s_or_b64 exec, exec, s[4:5] |
| ; GCN-NEXT: v_mov_b32_e32 v1, 0x3d0000 |
| ; GCN-NEXT: s_waitcnt vmcnt(0) lgkmcnt(0) |
| ; GCN-NEXT: global_store_dword v1, v0, s[0:1] offset:2300 |
| ; GCN-NEXT: s_endpgm |
| entry: |
| %out.gep = getelementptr float, float addrspace(1)* %out, i32 999999 |
| %in.gep = getelementptr float, float addrspace(1)* %in, i32 7 |
| %tid = call i32 @llvm.amdgcn.mbcnt.lo(i32 -1, i32 0) #0 |
| %cmp = icmp eq i32 %tid, 0 |
| br i1 %cmp, label %endif, label %if |
| |
| if: |
| %fadd2 = call float @llvm.amdgcn.global.atomic.fadd.f32.p1f32.f32(float addrspace(1)* %in.gep, float 2.0) |
| %val = load volatile float, float addrspace(1)* undef |
| br label %endif |
| |
| endif: |
| %x = phi float [ %val, %if ], [ 0.0, %entry ] |
| store float %x, float addrspace(1)* %out.gep |
| br label %done |
| |
| done: |
| ret void |
| } |
| |
| declare i32 @llvm.amdgcn.mbcnt.lo(i32, i32) #1 |
| declare float @llvm.amdgcn.global.atomic.fadd.f32.p1f32.f32(float addrspace(1)* nocapture, float) #2 |
| |
| attributes #0 = { argmemonly nounwind } |
| attributes #1 = { nounwind readnone willreturn } |
| attributes #2 = { argmemonly nounwind willreturn } |