Files
clang-p2996/llvm/test/CodeGen/AMDGPU/lower-module-lds-offsets.ll
Janek van Oirschot c897c13dde [AMDGPU] Convert AMDGPUResourceUsageAnalysis pass from Module to MF pass (#102913)
Converts AMDGPUResourceUsageAnalysis pass from Module to MachineFunction
pass. Moves function resource info propagation to to MC layer (through
helpers in AMDGPUMCResourceInfo) by generating MCExprs for every
function resource which the emitters have been prepped for.

Fixes https://github.com/llvm/llvm-project/issues/64863
2024-09-30 11:43:34 +01:00

45 lines
2.0 KiB
LLVM

; 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 -mtriple=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: {{^}}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
}
; 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.kernel.k0.lds) ]
; 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
}