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llvm/test/CodeGen/AMDGPU/load-constant-i32.ll
Marek Olsak 716b378a48 AMDGPU/SI: Increase SGPR limit to 96 on Tonga/Iceland 
Summary:
This is the setting of the Vulkan closed source driver.

It decreases the max wave count from 10 to 8.

26010 shaders in 14650 tests
Totals:
VGPRS: 829593 -> 808440 (-2.55 %)
Spilled SGPRs: 81878 -> 42226 (-48.43 %)
Spilled VGPRs: 367 -> 358 (-2.45 %)
Scratch VGPRs: 1764 -> 1748 (-0.91 %) dwords per thread
Code Size: 36677864 -> 35923932 (-2.06 %) bytes

There is a massive decrease in SGPR spilling in general and -7.4% spilled
VGPRs for DiRT Showdown (= SGPRs spilled to scratch?)

Reviewers: arsenm, tstellarAMD, nhaehnle

Subscribers: arsenm, llvm-commits, kzhuravl

Differential Revision: https://reviews.llvm.org/D23034

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@277867 91177308-0d34-0410-b5e6-96231b3b80d8
2016-08-05 21:23:29 +00:00

381 lines
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LLVM
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; RUN: llc -march=amdgcn -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=GCN-NOHSA -check-prefix=FUNC %s
; RUN: llc -mtriple=amdgcn--amdhsa -mcpu=kaveri -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=GCN-HSA -check-prefix=FUNC %s
; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=GCN-NOHSA -check-prefix=FUNC %s
; RUN: llc -march=r600 -mcpu=redwood < %s | FileCheck -check-prefix=EG -check-prefix=FUNC %s
; FUNC-LABEL: {{^}}constant_load_i32:
; GCN: s_load_dword s{{[0-9]+}}
; EG: VTX_READ_32 T{{[0-9]+}}.X, T{{[0-9]+}}.X, 0
define void @constant_load_i32(i32 addrspace(1)* %out, i32 addrspace(2)* %in) #0 {
entry:
%ld = load i32, i32 addrspace(2)* %in
store i32 %ld, i32 addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}constant_load_v2i32:
; GCN: s_load_dwordx2
; EG: VTX_READ_64
define void @constant_load_v2i32(<2 x i32> addrspace(1)* %out, <2 x i32> addrspace(2)* %in) #0 {
entry:
%ld = load <2 x i32>, <2 x i32> addrspace(2)* %in
store <2 x i32> %ld, <2 x i32> addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}constant_load_v3i32:
; GCN: s_load_dwordx4
; EG: VTX_READ_128
define void @constant_load_v3i32(<3 x i32> addrspace(1)* %out, <3 x i32> addrspace(2)* %in) #0 {
entry:
%ld = load <3 x i32>, <3 x i32> addrspace(2)* %in
store <3 x i32> %ld, <3 x i32> addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}constant_load_v4i32:
; GCN: s_load_dwordx4
; EG: VTX_READ_128
define void @constant_load_v4i32(<4 x i32> addrspace(1)* %out, <4 x i32> addrspace(2)* %in) #0 {
entry:
%ld = load <4 x i32>, <4 x i32> addrspace(2)* %in
store <4 x i32> %ld, <4 x i32> addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}constant_load_v8i32:
; GCN: s_load_dwordx8
; EG: VTX_READ_128
; EG: VTX_READ_128
define void @constant_load_v8i32(<8 x i32> addrspace(1)* %out, <8 x i32> addrspace(2)* %in) #0 {
entry:
%ld = load <8 x i32>, <8 x i32> addrspace(2)* %in
store <8 x i32> %ld, <8 x i32> addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}constant_load_v16i32:
; GCN: s_load_dwordx16
; EG: VTX_READ_128
; EG: VTX_READ_128
; EG: VTX_READ_128
; EG: VTX_READ_128
define void @constant_load_v16i32(<16 x i32> addrspace(1)* %out, <16 x i32> addrspace(2)* %in) #0 {
entry:
%ld = load <16 x i32>, <16 x i32> addrspace(2)* %in
store <16 x i32> %ld, <16 x i32> addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}constant_zextload_i32_to_i64:
; GCN-DAG: s_load_dword s[[SLO:[0-9]+]],
; GCN-DAG: v_mov_b32_e32 v[[SHI:[0-9]+]], 0{{$}}
; GCN: store_dwordx2
; EG: MEM_RAT_CACHELESS STORE_RAW T{{[0-9]+}}.XY
; EG: CF_END
; EG: VTX_READ_32
define void @constant_zextload_i32_to_i64(i64 addrspace(1)* %out, i32 addrspace(2)* %in) #0 {
%ld = load i32, i32 addrspace(2)* %in
%ext = zext i32 %ld to i64
store i64 %ext, i64 addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}constant_sextload_i32_to_i64:
; GCN: s_load_dword s[[SLO:[0-9]+]]
; GCN: s_ashr_i32 s[[HI:[0-9]+]], s[[SLO]], 31
; GCN: store_dwordx2
; EG: MEM_RAT_CACHELESS STORE_RAW T{{[0-9]+}}.XY
; EG: CF_END
; EG: VTX_READ_32
; EG: ASHR {{[* ]*}}T{{[0-9]\.[XYZW]}}, T{{[0-9]\.[XYZW]}}, literal.
; EG: 31
define void @constant_sextload_i32_to_i64(i64 addrspace(1)* %out, i32 addrspace(2)* %in) #0 {
%ld = load i32, i32 addrspace(2)* %in
%ext = sext i32 %ld to i64
store i64 %ext, i64 addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}constant_zextload_v1i32_to_v1i64:
; GCN: s_load_dword
; GCN: store_dwordx2
define void @constant_zextload_v1i32_to_v1i64(<1 x i64> addrspace(1)* %out, <1 x i32> addrspace(2)* %in) #0 {
%ld = load <1 x i32>, <1 x i32> addrspace(2)* %in
%ext = zext <1 x i32> %ld to <1 x i64>
store <1 x i64> %ext, <1 x i64> addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}constant_sextload_v1i32_to_v1i64:
; GCN: s_load_dword s[[LO:[0-9]+]]
; GCN: s_ashr_i32 s[[HI:[0-9]+]], s[[LO]], 31
; GCN: store_dwordx2
define void @constant_sextload_v1i32_to_v1i64(<1 x i64> addrspace(1)* %out, <1 x i32> addrspace(2)* %in) #0 {
%ld = load <1 x i32>, <1 x i32> addrspace(2)* %in
%ext = sext <1 x i32> %ld to <1 x i64>
store <1 x i64> %ext, <1 x i64> addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}constant_zextload_v2i32_to_v2i64:
; GCN: s_load_dwordx2 s{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0x0{{$}}
; GCN: store_dwordx4
define void @constant_zextload_v2i32_to_v2i64(<2 x i64> addrspace(1)* %out, <2 x i32> addrspace(2)* %in) #0 {
%ld = load <2 x i32>, <2 x i32> addrspace(2)* %in
%ext = zext <2 x i32> %ld to <2 x i64>
store <2 x i64> %ext, <2 x i64> addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}constant_sextload_v2i32_to_v2i64:
; GCN: s_load_dwordx2 s{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0x0{{$}}
; GCN-DAG: s_ashr_i32
; GCN-DAG: s_ashr_i32
; GCN: store_dwordx4
define void @constant_sextload_v2i32_to_v2i64(<2 x i64> addrspace(1)* %out, <2 x i32> addrspace(2)* %in) #0 {
%ld = load <2 x i32>, <2 x i32> addrspace(2)* %in
%ext = sext <2 x i32> %ld to <2 x i64>
store <2 x i64> %ext, <2 x i64> addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}constant_zextload_v4i32_to_v4i64:
; GCN: s_load_dwordx4
; GCN: store_dwordx4
; GCN: store_dwordx4
define void @constant_zextload_v4i32_to_v4i64(<4 x i64> addrspace(1)* %out, <4 x i32> addrspace(2)* %in) #0 {
%ld = load <4 x i32>, <4 x i32> addrspace(2)* %in
%ext = zext <4 x i32> %ld to <4 x i64>
store <4 x i64> %ext, <4 x i64> addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}constant_sextload_v4i32_to_v4i64:
; GCN: s_load_dwordx4
; GCN: s_ashr_i32
; GCN: s_ashr_i32
; GCN: s_ashr_i32
; GCN: s_ashr_i32
; GCN: store_dwordx4
; GCN: store_dwordx4
define void @constant_sextload_v4i32_to_v4i64(<4 x i64> addrspace(1)* %out, <4 x i32> addrspace(2)* %in) #0 {
%ld = load <4 x i32>, <4 x i32> addrspace(2)* %in
%ext = sext <4 x i32> %ld to <4 x i64>
store <4 x i64> %ext, <4 x i64> addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}constant_zextload_v8i32_to_v8i64:
; GCN: s_load_dwordx8
; GCN-NOHSA-DAG: buffer_store_dwordx4
; GCN-NOHSA-DAG: buffer_store_dwordx4
; GCN-NOHSA-DAG: buffer_store_dwordx4
; GCN-NOHSA-DAG: buffer_store_dwordx4
; GCN-HSA-DAG: flat_store_dwordx4
; GCN-HSA-DAG: flat_store_dwordx4
; GCN-SA-DAG: flat_store_dwordx4
; GCN-HSA-DAG: flat_store_dwordx4
define void @constant_zextload_v8i32_to_v8i64(<8 x i64> addrspace(1)* %out, <8 x i32> addrspace(2)* %in) #0 {
%ld = load <8 x i32>, <8 x i32> addrspace(2)* %in
%ext = zext <8 x i32> %ld to <8 x i64>
store <8 x i64> %ext, <8 x i64> addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}constant_sextload_v8i32_to_v8i64:
; GCN: s_load_dwordx8
; GCN: s_ashr_i32
; GCN: s_ashr_i32
; GCN: s_ashr_i32
; GCN: s_ashr_i32
; GCN: s_ashr_i32
; GCN: s_ashr_i32
; GCN: s_ashr_i32
; GCN: s_ashr_i32
; GCN-NOHSA-DAG: buffer_store_dwordx4
; GCN-NOHSA-DAG: buffer_store_dwordx4
; GCN-NOHSA-DAG: buffer_store_dwordx4
; GCN-NOHSA-DAG: buffer_store_dwordx4
; GCN-HSA-DAG: flat_store_dwordx4
; GCN-HSA-DAG: flat_store_dwordx4
; GCN-HSA-DAG: flat_store_dwordx4
; GCN-HSA-DAG: flat_store_dwordx4
define void @constant_sextload_v8i32_to_v8i64(<8 x i64> addrspace(1)* %out, <8 x i32> addrspace(2)* %in) #0 {
%ld = load <8 x i32>, <8 x i32> addrspace(2)* %in
%ext = sext <8 x i32> %ld to <8 x i64>
store <8 x i64> %ext, <8 x i64> addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}constant_sextload_v16i32_to_v16i64:
; GCN: s_load_dwordx16
; GCN-DAG: s_ashr_i32
; GCN: store_dwordx4
; GCN: store_dwordx4
; GCN: store_dwordx4
; GCN: store_dwordx4
; GCN: store_dwordx4
; GCN: store_dwordx4
; GCN: store_dwordx4
; GCN: store_dwordx4
define void @constant_sextload_v16i32_to_v16i64(<16 x i64> addrspace(1)* %out, <16 x i32> addrspace(2)* %in) #0 {
%ld = load <16 x i32>, <16 x i32> addrspace(2)* %in
%ext = sext <16 x i32> %ld to <16 x i64>
store <16 x i64> %ext, <16 x i64> addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}constant_zextload_v16i32_to_v16i64
; GCN: s_load_dwordx16
; GCN-NOHSA: buffer_store_dwordx4
; GCN-NOHSA: buffer_store_dwordx4
; GCN-NOHSA: buffer_store_dwordx4
; GCN-NOHSA: buffer_store_dwordx4
; GCN-NOHSA: buffer_store_dwordx4
; GCN-NOHSA: buffer_store_dwordx4
; GCN-NOHSA: buffer_store_dwordx4
; GCN-NOHSA: buffer_store_dwordx4
; GCN-HSA: flat_store_dwordx4
; GCN-HSA: flat_store_dwordx4
; GCN-HSA: flat_store_dwordx4
; GCN-HSA: flat_store_dwordx4
; GCN-HSA: flat_store_dwordx4
; GCN-HSA: flat_store_dwordx4
; GCN-HSA: flat_store_dwordx4
; GCN-HSA: flat_store_dwordx4
define void @constant_zextload_v16i32_to_v16i64(<16 x i64> addrspace(1)* %out, <16 x i32> addrspace(2)* %in) #0 {
%ld = load <16 x i32>, <16 x i32> addrspace(2)* %in
%ext = zext <16 x i32> %ld to <16 x i64>
store <16 x i64> %ext, <16 x i64> addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}constant_sextload_v32i32_to_v32i64:
; GCN: s_load_dwordx16
; GCN-DAG: s_load_dwordx16
; GCN-NOHSA-DAG: buffer_store_dwordx4
; GCN-NOHSA-DAG: buffer_store_dwordx4
; GCN-NOHSA-DAG: buffer_store_dwordx4
; GCN-NOHSA-DAG: buffer_store_dwordx4
; GCN-NOHSA-DAG: buffer_store_dwordx4
; GCN-NOHSA-DAG: buffer_store_dwordx4
; GCN-NOHSA-DAG: buffer_store_dwordx4
; GCN-NOHSA-DAG: buffer_store_dwordx4
; GCN-NOHSA-DAG: buffer_store_dwordx4
; GCN-NOHSA-DAG: buffer_store_dwordx4
; GCN-NOHSA-DAG: buffer_store_dwordx4
; GCN-NOHSA-DAG: buffer_store_dwordx4
; GCN-NOHSA-DAG: buffer_store_dwordx4
; GCN-NOHSA-DAG: buffer_store_dwordx4
; GCN-NOHSA-DAG: buffer_store_dwordx4
; GCN-NOHSA-DAG: buffer_store_dwordx4
; GCN-HSA-DAG: flat_store_dwordx4
; GCN-HSA-DAG: flat_store_dwordx4
; GCN-HSA-DAG: flat_store_dwordx4
; GCN-HSA-DAG: flat_store_dwordx4
; GCN-HSA-DAG: flat_store_dwordx4
; GCN-HSA-DAG: flat_store_dwordx4
; GCN-HSA-DAG: flat_store_dwordx4
; GCN-HSA-DAG: flat_store_dwordx4
; GCN-HSA-DAG: flat_store_dwordx4
; GCN-HSA-DAG: flat_store_dwordx4
; GCN-HSA-DAG: flat_store_dwordx4
; GCN-HSA-DAG: flat_store_dwordx4
; GCN-HSA-DAG: flat_store_dwordx4
; GCN-HSA-DAG: flat_store_dwordx4
; GCN-HSA-DAG: flat_store_dwordx4
; GCN-HSA-DAG: flat_store_dwordx4
define void @constant_sextload_v32i32_to_v32i64(<32 x i64> addrspace(1)* %out, <32 x i32> addrspace(2)* %in) #0 {
%ld = load <32 x i32>, <32 x i32> addrspace(2)* %in
%ext = sext <32 x i32> %ld to <32 x i64>
store <32 x i64> %ext, <32 x i64> addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}constant_zextload_v32i32_to_v32i64:
; GCN: s_load_dwordx16
; GCN: s_load_dwordx16
; GCN-NOHSA-DAG: buffer_store_dwordx4
; GCN-NOHSA-DAG: buffer_store_dwordx4
; GCN-NOHSA-DAG: buffer_store_dwordx4
; GCN-NOHSA-DAG: buffer_store_dwordx4
; GCN-NOHSA-DAG: buffer_store_dwordx4
; GCN-NOHSA-DAG: buffer_store_dwordx4
; GCN-NOHSA-DAG: buffer_store_dwordx4
; GCN-NOHSA-DAG: buffer_store_dwordx4
; GCN-NOHSA-DAG: buffer_store_dwordx4
; GCN-NOHSA-DAG: buffer_store_dwordx4
; GCN-NOHSA-DAG: buffer_store_dwordx4
; GCN-NOHSA-DAG: buffer_store_dwordx4
; GCN-NOHSA-DAG: buffer_store_dwordx4
; GCN-NOHSA-DAG: buffer_store_dwordx4
; GCN-NOHSA-DAG: buffer_store_dwordx4
; GCN-NOHSA-DAG: buffer_store_dwordx4
; GCN-HSA-DAG: flat_store_dwordx4
; GCN-HSA-DAG: flat_store_dwordx4
; GCN-HSA-DAG: flat_store_dwordx4
; GCN-HSA-DAG: flat_store_dwordx4
; GCN-HSA-DAG: flat_store_dwordx4
; GCN-HSA-DAG: flat_store_dwordx4
; GCN-HSA-DAG: flat_store_dwordx4
; GCN-HSA-DAG: flat_store_dwordx4
; GCN-HSA-DAG: flat_store_dwordx4
; GCN-HSA-DAG: flat_store_dwordx4
; GCN-HSA-DAG: flat_store_dwordx4
; GCN-HSA-DAG: flat_store_dwordx4
; GCN-HSA-DAG: flat_store_dwordx4
; GCN-HSA-DAG: flat_store_dwordx4
; GCN-HSA-DAG: flat_store_dwordx4
; GCN-HSA-DAG: flat_store_dwordx4
define void @constant_zextload_v32i32_to_v32i64(<32 x i64> addrspace(1)* %out, <32 x i32> addrspace(2)* %in) #0 {
%ld = load <32 x i32>, <32 x i32> addrspace(2)* %in
%ext = zext <32 x i32> %ld to <32 x i64>
store <32 x i64> %ext, <32 x i64> addrspace(1)* %out
ret void
}
attributes #0 = { nounwind }
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