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261d5c31cf
Summary: The SILoadStoreOptimizer can now look ahead more then one instruction when looking for instructions to merge, which greatly improves the number of loads/stores that we are able to merge. Moving the pass before scheduling avoids increasing register pressure after the scheduler, so that the scheduler's register pressure estimates will be more accurate. It also gives more consistent results, since it is no longer affected by minor scheduling changes. Reviewers: arsenm Subscribers: arsenm, kzhuravl, llvm-commits Differential Revision: https://reviews.llvm.org/D23814 llvm-svn: 279991
128 lines
3.6 KiB
LLVM
128 lines
3.6 KiB
LLVM
; RUN: llc -march=amdgcn -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=SI %s
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; RUN: llc -march=amdgcn -mcpu=bonaire -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=CI %s
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; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=VI %s
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; GCN-LABEL: {{^}}global_store_v3i64:
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; GCN-DAG: buffer_store_dwordx2 v{{\[[0-9]+:[0-9]+\]}}, off, s{{\[[0-9]+:[0-9]+\]}}, 0 offset:16
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; GCN-DAG: buffer_store_dwordx4 v{{\[[0-9]+:[0-9]+\]}}, off, s{{\[[0-9]+:[0-9]+\]}}, 0{{$}}
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define void @global_store_v3i64(<3 x i64> addrspace(1)* %out, <3 x i64> %x) {
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store <3 x i64> %x, <3 x i64> addrspace(1)* %out, align 32
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ret void
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}
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; GCN-LABEL: {{^}}global_store_v3i64_unaligned:
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; GCN: buffer_store_byte
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; GCN: buffer_store_byte
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; GCN: buffer_store_byte
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; GCN: buffer_store_byte
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; GCN: buffer_store_byte
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; GCN: buffer_store_byte
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; GCN: buffer_store_byte
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; GCN: buffer_store_byte
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; GCN: buffer_store_byte
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; GCN: buffer_store_byte
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; GCN: buffer_store_byte
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; GCN: buffer_store_byte
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; GCN: buffer_store_byte
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; GCN: buffer_store_byte
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; GCN: buffer_store_byte
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; GCN: buffer_store_byte
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; GCN: buffer_store_byte
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; GCN: buffer_store_byte
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; GCN: buffer_store_byte
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; GCN: buffer_store_byte
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; GCN: buffer_store_byte
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; GCN: buffer_store_byte
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; GCN: buffer_store_byte
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; GCN: buffer_store_byte
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define void @global_store_v3i64_unaligned(<3 x i64> addrspace(1)* %out, <3 x i64> %x) {
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store <3 x i64> %x, <3 x i64> addrspace(1)* %out, align 1
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ret void
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}
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; GCN-LABEL: {{^}}local_store_v3i64:
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; GCN: ds_write2_b64
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; GCN: ds_write_b64
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define void @local_store_v3i64(<3 x i64> addrspace(3)* %out, <3 x i64> %x) {
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store <3 x i64> %x, <3 x i64> addrspace(3)* %out, align 32
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ret void
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}
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; GCN-LABEL: {{^}}local_store_v3i64_unaligned:
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; GCN: ds_write_b8
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; GCN: ds_write_b8
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; GCN: ds_write_b8
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; GCN: ds_write_b8
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; GCN: ds_write_b8
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; GCN: ds_write_b8
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; GCN: ds_write_b8
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; GCN: ds_write_b8
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; GCN: ds_write_b8
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; GCN: ds_write_b8
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; GCN: ds_write_b8
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; GCN: ds_write_b8
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; GCN: ds_write_b8
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; GCN: ds_write_b8
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; GCN: ds_write_b8
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; GCN: ds_write_b8
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; GCN: ds_write_b8
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; GCN: ds_write_b8
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; GCN: ds_write_b8
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; GCN: ds_write_b8
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; GCN: ds_write_b8
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; GCN: ds_write_b8
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; GCN: ds_write_b8
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; GCN: ds_write_b8
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define void @local_store_v3i64_unaligned(<3 x i64> addrspace(3)* %out, <3 x i64> %x) {
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store <3 x i64> %x, <3 x i64> addrspace(3)* %out, align 1
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ret void
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}
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; GCN-LABEL: {{^}}global_truncstore_v3i64_to_v3i32:
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; GCN-DAG: buffer_store_dwordx2
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; GCN-DAG: buffer_store_dword v
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define void @global_truncstore_v3i64_to_v3i32(<3 x i32> addrspace(1)* %out, <3 x i64> %x) {
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%trunc = trunc <3 x i64> %x to <3 x i32>
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store <3 x i32> %trunc, <3 x i32> addrspace(1)* %out
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ret void
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}
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; GCN-LABEL: {{^}}global_truncstore_v3i64_to_v3i16:
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; GCN-DAG: buffer_store_short
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; GCN-DAG: buffer_store_dword v
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define void @global_truncstore_v3i64_to_v3i16(<3 x i16> addrspace(1)* %out, <3 x i64> %x) {
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%trunc = trunc <3 x i64> %x to <3 x i16>
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store <3 x i16> %trunc, <3 x i16> addrspace(1)* %out
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ret void
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}
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; GCN-LABEL: {{^}}global_truncstore_v3i64_to_v3i8:
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; GCN-DAG: buffer_store_short
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; GCN-DAG: buffer_store_byte v
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define void @global_truncstore_v3i64_to_v3i8(<3 x i8> addrspace(1)* %out, <3 x i64> %x) {
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%trunc = trunc <3 x i64> %x to <3 x i8>
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store <3 x i8> %trunc, <3 x i8> addrspace(1)* %out
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ret void
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}
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; GCN-LABEL: {{^}}global_truncstore_v3i64_to_v3i1:
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; GCN-DAG: buffer_store_byte v
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; GCN-DAG: buffer_store_byte v
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; GCN-DAG: buffer_store_byte v
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define void @global_truncstore_v3i64_to_v3i1(<3 x i1> addrspace(1)* %out, <3 x i64> %x) {
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%trunc = trunc <3 x i64> %x to <3 x i1>
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store <3 x i1> %trunc, <3 x i1> addrspace(1)* %out
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ret void
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}
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