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| author | Tom Stellard <tstellar@redhat.com> | 2019-07-29 16:40:58 +0000 |
|---|---|---|
| committer | Tom Stellard <tstellar@redhat.com> | 2019-07-29 16:40:58 +0000 |
| commit | cc0bc941d4ebd0275fe206d78f395822258e73bc (patch) | |
| tree | ddd01e5c0899c0c6c5144f0e8c83f47e9c287a53 /llvm/test/CodeGen/MIR | |
| parent | 899bdaa8c29d9100759e63e9be52897e4dbb37d9 (diff) | |
| download | bcm5719-llvm-cc0bc941d4ebd0275fe206d78f395822258e73bc.tar.gz bcm5719-llvm-cc0bc941d4ebd0275fe206d78f395822258e73bc.zip | |
AMDGPU/LoadStoreOptimizer: combine MMOs when merging instructions
Summary:
The LoadStoreOptimizer was creating instructions with 2
MachineMemOperands, which meant they were assumed to alias with all other instructions,
because MachineInstr:mayAlias() returns true when an instruction has multiple
MachineMemOperands.
This was preventing these instructions from being merged again, and was
giving the scheduler less freedom to reorder them.
Reviewers: arsenm, nhaehnle
Reviewed By: arsenm
Subscribers: kzhuravl, jvesely, wdng, yaxunl, dstuttard, tpr, t-tye, hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D65036
llvm-svn: 367237
Diffstat (limited to 'llvm/test/CodeGen/MIR')
| -rw-r--r-- | llvm/test/CodeGen/MIR/AMDGPU/load-store-opt-dlc.mir | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/llvm/test/CodeGen/MIR/AMDGPU/load-store-opt-dlc.mir b/llvm/test/CodeGen/MIR/AMDGPU/load-store-opt-dlc.mir index 574aea17319..e3bcac22f13 100644 --- a/llvm/test/CodeGen/MIR/AMDGPU/load-store-opt-dlc.mir +++ b/llvm/test/CodeGen/MIR/AMDGPU/load-store-opt-dlc.mir @@ -32,7 +32,7 @@ } ... -# CHECK: BUFFER_STORE_DWORDX2_OFFSET killed %{{[0-9]+}}, %{{[0-9]+}}, 0, 4, 0, 0, 0, 0, implicit $exec :: (store 4 into %ir.out.gep.1, addrspace 1) +# CHECK: BUFFER_STORE_DWORDX2_OFFSET killed %{{[0-9]+}}, %{{[0-9]+}}, 0, 4, 0, 0, 0, 0, implicit $exec :: (store 8 into %ir.out.gep.1, align 4, addrspace 1) --- name: test1 liveins: @@ -124,7 +124,7 @@ body: | S_ENDPGM 0 ... -# CHECK: BUFFER_STORE_DWORDX2_OFFSET killed %{{[0-9]+}}, %{{[0-9]+}}, 0, 4, 0, 0, 0, 1, implicit $exec :: (store 4 into %ir.out.gep.1, addrspace 1) +# CHECK: BUFFER_STORE_DWORDX2_OFFSET killed %{{[0-9]+}}, %{{[0-9]+}}, 0, 4, 0, 0, 0, 1, implicit $exec :: (store 8 into %ir.out.gep.1, align 4, addrspace 1) --- name: test4 liveins: |
