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; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 < %s | FileCheck -check-prefixes=GCN,RW-FLAT %s
; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 -mattr=+architected-flat-scratch < %s | FileCheck -check-prefixes=GCN,RO-FLAT %s
; Make sure flat_scratch_init is set
; GCN-LABEL: {{^}}stack_object_addrspacecast_in_kernel_no_calls:
; RW-FLAT: s_add_u32 flat_scratch_lo, s4, s7
; RW-FLAT: s_addc_u32 flat_scratch_hi, s5, 0
; RO-FLAT-NOT: flat_scratch
; GCN: flat_store_dword
; RO-FLAT-NOT: .amdhsa_user_sgpr_private_segment_buffer
; RW-FLAT: .amdhsa_user_sgpr_flat_scratch_init 1
; RO-FLAT-NOT: .amdhsa_user_sgpr_flat_scratch_init
; RW-FLAT: .amdhsa_system_sgpr_private_segment_wavefront_offset
; RW-FLAT-NOT: .amdhsa_enable_private_segment
; RO-FLAT-NOT: .amdhsa_system_sgpr_private_segment_wavefront_offset
; RO-FLAT: .amdhsa_enable_private_segment 1
; GCN-NOT: .amdhsa_reserve_flat_scratch
; GCN: COMPUTE_PGM_RSRC2:SCRATCH_EN: 1
; RW-FLAT: COMPUTE_PGM_RSRC2:USER_SGPR: 6
; RO-FLAT: COMPUTE_PGM_RSRC2:USER_SGPR: 0
define amdgpu_kernel void @stack_object_addrspacecast_in_kernel_no_calls() {
%alloca = alloca i32, addrspace(5)
%cast = addrspacecast i32 addrspace(5)* %alloca to i32*
store volatile i32 0, i32* %cast
ret void
}
; TODO: Could optimize out in this case
; GCN-LABEL: {{^}}stack_object_in_kernel_no_calls:
; RO-FLAT-NOT: flat_scratch
; RW-FLAT: buffer_store_dword
; RO-FLAT: scratch_store_dword
; RW-FLAT: .amdhsa_user_sgpr_private_segment_buffer 1
; RO-FLAT-NOT: .amdhsa_user_sgpr_private_segment_buffer
; RW-FLAT: .amdhsa_user_sgpr_flat_scratch_init 1
; RO-FLAT-NOT: .amdhsa_user_sgpr_flat_scratch_init
; RW-FLAT: .amdhsa_system_sgpr_private_segment_wavefront_offset 1
; RW-FLAT-NOT: .amdhsa_enable_private_segment
; RO-FLAT-NOT: .amdhsa_system_sgpr_private_segment_wavefront_offset
; RO-FLAT: .amdhsa_enable_private_segment 1
; RW-FLAT: .amdhsa_reserve_flat_scratch 0
; RO-FLAT-NOT: .amdhsa_reserve_flat_scratch
; GCN: COMPUTE_PGM_RSRC2:SCRATCH_EN: 1
; RW-FLAT: COMPUTE_PGM_RSRC2:USER_SGPR: 6
; RO-FLAT: COMPUTE_PGM_RSRC2:USER_SGPR: 0
define amdgpu_kernel void @stack_object_in_kernel_no_calls() {
%alloca = alloca i32, addrspace(5)
store volatile i32 0, i32 addrspace(5)* %alloca
ret void
}
; GCN-LABEL: {{^}}kernel_no_calls_no_stack:
; GCN-NOT: flat_scratch
; RW-FLAT: .amdhsa_user_sgpr_private_segment_buffer 1
; RO-FLAT-NOT: .amdhsa_user_sgpr_private_segment_buffer
; RW-FLAT: .amdhsa_user_sgpr_flat_scratch_init 0
; RO-FLAT-NOT: .amdhsa_user_sgpr_flat_scratch_init
; RW-FLAT: .amdhsa_system_sgpr_private_segment_wavefront_offset 0
; RW-FLAT-NOT: .amdhsa_enable_private_segment
; RO-FLAT-NOT: .amdhsa_system_sgpr_private_segment_wavefront_offset
; RO-FLAT: .amdhsa_enable_private_segment 0
; RW-FLAT: .amdhsa_reserve_flat_scratch 0
; RO-FLAT-NOT: .amdhsa_reserve_flat_scratch 0
; GCN: COMPUTE_PGM_RSRC2:SCRATCH_EN: 0
; RW-FLAT: COMPUTE_PGM_RSRC2:USER_SGPR: 4
; RO-FLAT: COMPUTE_PGM_RSRC2:USER_SGPR: 0
define amdgpu_kernel void @kernel_no_calls_no_stack() {
ret void
}
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