forked from OSchip/llvm-project
140 lines
5.3 KiB
LLVM
140 lines
5.3 KiB
LLVM
; RUN: llc -march=amdgcn -mcpu=bonaire -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s
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; RUN: llc -march=amdgcn -mcpu=tonga -mattr=-flat-for-global -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s
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; On Southern Islands GPUs the local address space(3) uses 32-bit pointers and
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; the global address space(1) uses 64-bit pointers. These tests check to make sure
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; the correct pointer size is used for the local address space.
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; The e{{32|64}} suffix on the instructions refers to the encoding size and not
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; the size of the operands. The operand size is denoted in the instruction name.
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; Instructions with B32, U32, and I32 in their name take 32-bit operands, while
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; instructions with B64, U64, and I64 take 64-bit operands.
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; FUNC-LABEL: {{^}}local_address_load:
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; SI: v_mov_b32_e{{32|64}} [[PTR:v[0-9]]]
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; SI: ds_read_b32 v{{[0-9]+}}, [[PTR]]
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define amdgpu_kernel void @local_address_load(i32 addrspace(1)* %out, i32 addrspace(3)* %in) {
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entry:
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%0 = load i32, i32 addrspace(3)* %in
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store i32 %0, i32 addrspace(1)* %out
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ret void
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}
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; FUNC-LABEL: {{^}}local_address_gep:
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; SI: s_add_i32 [[SPTR:s[0-9]]]
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; SI: v_mov_b32_e32 [[VPTR:v[0-9]+]], [[SPTR]]
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; SI: ds_read_b32 [[VPTR]]
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define amdgpu_kernel void @local_address_gep(i32 addrspace(1)* %out, i32 addrspace(3)* %in, i32 %offset) {
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entry:
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%0 = getelementptr i32, i32 addrspace(3)* %in, i32 %offset
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%1 = load i32, i32 addrspace(3)* %0
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store i32 %1, i32 addrspace(1)* %out
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ret void
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}
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; FUNC-LABEL: {{^}}local_address_gep_const_offset:
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; SI: v_mov_b32_e32 [[VPTR:v[0-9]+]], s{{[0-9]+}}
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; SI: ds_read_b32 v{{[0-9]+}}, [[VPTR]] offset:4
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define amdgpu_kernel void @local_address_gep_const_offset(i32 addrspace(1)* %out, i32 addrspace(3)* %in) {
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entry:
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%0 = getelementptr i32, i32 addrspace(3)* %in, i32 1
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%1 = load i32, i32 addrspace(3)* %0
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store i32 %1, i32 addrspace(1)* %out
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ret void
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}
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; Offset too large, can't fold into 16-bit immediate offset.
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; FUNC-LABEL: {{^}}local_address_gep_large_const_offset:
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; SI: s_add_i32 [[SPTR:s[0-9]]], s{{[0-9]+}}, 0x10004
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; SI: v_mov_b32_e32 [[VPTR:v[0-9]+]], [[SPTR]]
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; SI: ds_read_b32 [[VPTR]]
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define amdgpu_kernel void @local_address_gep_large_const_offset(i32 addrspace(1)* %out, i32 addrspace(3)* %in) {
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entry:
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%0 = getelementptr i32, i32 addrspace(3)* %in, i32 16385
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%1 = load i32, i32 addrspace(3)* %0
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store i32 %1, i32 addrspace(1)* %out
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ret void
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}
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; FUNC-LABEL: {{^}}null_32bit_lds_ptr:
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; SI: s_cmp_lg_u32
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; SI-NOT: v_cmp_ne_u32
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; SI: s_cselect_b32
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define amdgpu_kernel void @null_32bit_lds_ptr(i32 addrspace(1)* %out, i32 addrspace(3)* %lds) nounwind {
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%cmp = icmp ne i32 addrspace(3)* %lds, null
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%x = select i1 %cmp, i32 123, i32 456
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store i32 %x, i32 addrspace(1)* %out
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ret void
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}
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; FUNC-LABEL: {{^}}mul_32bit_ptr:
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; SI: s_mul_i32
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; SI-NEXT: s_add_i32
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; SI: ds_read_b32
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define amdgpu_kernel void @mul_32bit_ptr(float addrspace(1)* %out, [3 x float] addrspace(3)* %lds, i32 %tid) {
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%ptr = getelementptr [3 x float], [3 x float] addrspace(3)* %lds, i32 %tid, i32 0
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%val = load float, float addrspace(3)* %ptr
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store float %val, float addrspace(1)* %out
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ret void
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}
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@g_lds = addrspace(3) global float undef, align 4
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; FUNC-LABEL: {{^}}infer_ptr_alignment_global_offset:
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; SI: v_mov_b32_e32 [[PTR:v[0-9]+]], g_lds@abs32@lo
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; SI: ds_read_b32 v{{[0-9]+}}, [[PTR]]
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define amdgpu_kernel void @infer_ptr_alignment_global_offset(float addrspace(1)* %out, i32 %tid) {
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%val = load float, float addrspace(3)* @g_lds
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store float %val, float addrspace(1)* %out
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ret void
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}
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@ptr = addrspace(3) global i32 addrspace(3)* undef
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@dst = addrspace(3) global [16383 x i32] undef
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; FUNC-LABEL: {{^}}global_ptr:
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; SI: ds_write_b32
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define amdgpu_kernel void @global_ptr() nounwind {
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store i32 addrspace(3)* getelementptr ([16383 x i32], [16383 x i32] addrspace(3)* @dst, i32 0, i32 16), i32 addrspace(3)* addrspace(3)* @ptr
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ret void
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}
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; FUNC-LABEL: {{^}}local_address_store:
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; SI: ds_write_b32
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define amdgpu_kernel void @local_address_store(i32 addrspace(3)* %out, i32 %val) {
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store i32 %val, i32 addrspace(3)* %out
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ret void
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}
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; FUNC-LABEL: {{^}}local_address_gep_store:
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; SI: s_add_i32 [[SADDR:s[0-9]+]],
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; SI: v_mov_b32_e32 [[ADDR:v[0-9]+]], [[SADDR]]
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; SI: ds_write_b32 [[ADDR]], v{{[0-9]+}}
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define amdgpu_kernel void @local_address_gep_store(i32 addrspace(3)* %out, i32, i32 %val, i32 %offset) {
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%gep = getelementptr i32, i32 addrspace(3)* %out, i32 %offset
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store i32 %val, i32 addrspace(3)* %gep, align 4
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ret void
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}
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; FUNC-LABEL: {{^}}local_address_gep_const_offset_store:
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; SI: v_mov_b32_e32 [[VPTR:v[0-9]+]], s{{[0-9]+}}
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; SI: v_mov_b32_e32 [[VAL:v[0-9]+]], s{{[0-9]+}}
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; SI: ds_write_b32 [[VPTR]], [[VAL]] offset:4
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define amdgpu_kernel void @local_address_gep_const_offset_store(i32 addrspace(3)* %out, i32 %val) {
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%gep = getelementptr i32, i32 addrspace(3)* %out, i32 1
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store i32 %val, i32 addrspace(3)* %gep, align 4
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ret void
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}
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; Offset too large, can't fold into 16-bit immediate offset.
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; FUNC-LABEL: {{^}}local_address_gep_large_const_offset_store:
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; SI: s_add_i32 [[SPTR:s[0-9]]], s{{[0-9]+}}, 0x10004
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; SI: v_mov_b32_e32 [[VPTR:v[0-9]+]], [[SPTR]]
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; SI: ds_write_b32 [[VPTR]], v{{[0-9]+$}}
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define amdgpu_kernel void @local_address_gep_large_const_offset_store(i32 addrspace(3)* %out, i32 %val) {
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%gep = getelementptr i32, i32 addrspace(3)* %out, i32 16385
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store i32 %val, i32 addrspace(3)* %gep, align 4
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ret void
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}
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