| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt -S -mtriple=amdgcn-- -amdgpu-lower-module-lds < %s --amdgpu-lower-module-lds-strategy=module | FileCheck -check-prefix=OPT %s |
| ; RUN: opt -S -mtriple=amdgcn-- -passes=amdgpu-lower-module-lds < %s --amdgpu-lower-module-lds-strategy=module | FileCheck -check-prefix=OPT %s |
| ; RUN: llc -march=amdgcn -mcpu=gfx900 -verify-machineinstrs < %s --amdgpu-lower-module-lds-strategy=module | FileCheck -check-prefix=GCN %s |
| |
| ; Check that module LDS is allocated at address 0 and kernel starts its |
| ; allocation past module LDS when a call is present. |
| |
| @lds.size.1.align.1 = internal unnamed_addr addrspace(3) global [1 x i8] undef, align 1 |
| @lds.size.16.align.16 = internal unnamed_addr addrspace(3) global [16 x i8] undef, align 16 |
| |
| ; GCN-LABEL: {{^}}k0: |
| ; GCN-DAG: v_mov_b32_e32 [[NULL:v[0-9]+]], 0 |
| ; GCN-DAG: v_mov_b32_e32 [[ONE:v[0-9]+]], 1 |
| ; GCN: ds_write_b8 [[NULL]], [[ONE]] |
| ; GCN: v_mov_b32_e32 [[TWO:v[0-9]+]], 2 |
| ; GCN: ds_write_b8 [[NULL]], [[TWO]] offset:16 |
| define amdgpu_kernel void @k0() { |
| ; OPT-LABEL: @k0( |
| ; OPT-NEXT: call void @llvm.donothing() [ "ExplicitUse"(ptr addrspace(3) @llvm.amdgcn.module.lds) ] |
| ; OPT-NEXT: store i8 1, ptr addrspace(3) @llvm.amdgcn.module.lds, align 1 |
| ; OPT-NEXT: store i8 2, ptr addrspace(3) @llvm.amdgcn.kernel.k0.lds, align 16 |
| ; OPT-NEXT: call void @f0() |
| ; OPT-NEXT: ret void |
| ; |
| store i8 1, ptr addrspace(3) @lds.size.1.align.1, align 1 |
| store i8 2, ptr addrspace(3) @lds.size.16.align.16, align 16 |
| call void @f0() |
| ret void |
| } |
| |
| ; GCN-LABEL: {{^}}f0: |
| ; GCN-DAG: v_mov_b32_e32 [[NULL:v[0-9]+]], 0 |
| ; GCN-DAG: v_mov_b32_e32 [[TREE:v[0-9]+]], 3 |
| ; GCN: ds_write_b8 [[NULL]], [[TREE]] |
| define void @f0() { |
| ; OPT-LABEL: @f0() { |
| ; OPT-NEXT: store i8 3, ptr addrspace(3) @llvm.amdgcn.module.lds, align 1 |
| ; OPT-NEXT: ret void |
| ; |
| store i8 3, ptr addrspace(3) @lds.size.1.align.1, align 1 |
| ret void |
| } |
| |
| attributes #0 = { "amdgpu-elide-module-lds" } |
| ; CHECK: attributes #0 = { "amdgpu-elide-module-lds" } |