llvm-project/llvm/test/CodeGen/AMDGPU/large-alloca-graphics.ll

47 lines
1.8 KiB
LLVM

; RUN: llc -march=amdgcn -mcpu=bonaire < %s | FileCheck -check-prefix=GCN -check-prefix=CI -check-prefix=ALL %s
; RUN: llc -march=amdgcn -mcpu=carrizo < %s | FileCheck -check-prefix=GCN -check-prefix=VI -check-prefix=ALL %s
; ALL-LABEL: {{^}}large_alloca_pixel_shader:
; GCN-DAG: s_mov_b32 s8, SCRATCH_RSRC_DWORD0
; GCN-DAG: s_mov_b32 s9, SCRATCH_RSRC_DWORD1
; GCN-DAG: s_mov_b32 s10, -1
; CI-DAG: s_mov_b32 s11, 0x88f000
; VI-DAG: s_mov_b32 s11, 0x880000
; GCN: buffer_store_dword {{v[0-9]+}}, {{v[0-9]+}}, s[8:11], s0 offen
; GCN: buffer_load_dword {{v[0-9]+}}, {{v[0-9]+}}, s[8:11], s0 offen
; ALL: ; ScratchSize: 32772
define amdgpu_ps void @large_alloca_pixel_shader(i32 %x, i32 %y) #0 {
%large = alloca [8192 x i32], align 4
%gep = getelementptr [8192 x i32], [8192 x i32]* %large, i32 0, i32 8191
store volatile i32 %x, i32* %gep
%gep1 = getelementptr [8192 x i32], [8192 x i32]* %large, i32 0, i32 %y
%val = load volatile i32, i32* %gep1
store volatile i32 %val, i32 addrspace(1)* undef
ret void
}
; ALL-LABEL: {{^}}large_alloca_pixel_shader_inreg:
; GCN-DAG: s_mov_b32 s8, SCRATCH_RSRC_DWORD0
; GCN-DAG: s_mov_b32 s9, SCRATCH_RSRC_DWORD1
; GCN-DAG: s_mov_b32 s10, -1
; CI-DAG: s_mov_b32 s11, 0x88f000
; VI-DAG: s_mov_b32 s11, 0x880000
; GCN: buffer_store_dword {{v[0-9]+}}, {{v[0-9]+}}, s[8:11], s2 offen
; GCN: buffer_load_dword {{v[0-9]+}}, {{v[0-9]+}}, s[8:11], s2 offen
; ALL: ; ScratchSize: 32772
define amdgpu_ps void @large_alloca_pixel_shader_inreg(i32 inreg %x, i32 inreg %y) #0 {
%large = alloca [8192 x i32], align 4
%gep = getelementptr [8192 x i32], [8192 x i32]* %large, i32 0, i32 8191
store volatile i32 %x, i32* %gep
%gep1 = getelementptr [8192 x i32], [8192 x i32]* %large, i32 0, i32 %y
%val = load volatile i32, i32* %gep1
store volatile i32 %val, i32 addrspace(1)* undef
ret void
}
attributes #0 = { nounwind }