mirror of
https://github.com/Gericom/teak-llvm.git
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b777e551f0
Summary: Mem op clustering adds a weak edge in the DAG between two loads or stores that should be clustered, but the direction of this edge is pretty arbitrary (it depends on the sort order of MemOpInfo, which represents the operands of a load or store). This often means that two loads or stores will get reordered even if they would naturally have been scheduled together anyway, which leads to test case churn and goes against the scheduler's "do no harm" philosophy. The fix makes sure that the direction of the edge always matches the original code order of the instructions. Reviewers: atrick, MatzeB, arsenm, rampitec, t.p.northover Subscribers: jvesely, wdng, nhaehnle, kristof.beyls, hiraditya, javed.absar, arphaman, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D72706
39 lines
2.0 KiB
LLVM
39 lines
2.0 KiB
LLVM
; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s
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; GCN-LABEL: {{^}}cast_constant_i64_to_build_vector_v4i16:
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; GCN: global_store_short
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; GCN: global_store_dword v
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; GCN: global_store_dwordx2
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define amdgpu_kernel void @cast_constant_i64_to_build_vector_v4i16(i8 addrspace(1)* nocapture %data) {
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entry:
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store i8 72, i8 addrspace(1)* %data, align 1
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%arrayidx1 = getelementptr inbounds i8, i8 addrspace(1)* %data, i64 1
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store i8 101, i8 addrspace(1)* %arrayidx1, align 1
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%arrayidx2 = getelementptr inbounds i8, i8 addrspace(1)* %data, i64 2
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store i8 108, i8 addrspace(1)* %arrayidx2, align 1
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%arrayidx3 = getelementptr inbounds i8, i8 addrspace(1)* %data, i64 3
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store i8 108, i8 addrspace(1)* %arrayidx3, align 1
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%arrayidx4 = getelementptr inbounds i8, i8 addrspace(1)* %data, i64 4
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store i8 111, i8 addrspace(1)* %arrayidx4, align 1
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%arrayidx5 = getelementptr inbounds i8, i8 addrspace(1)* %data, i64 5
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store i8 44, i8 addrspace(1)* %arrayidx5, align 1
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%arrayidx6 = getelementptr inbounds i8, i8 addrspace(1)* %data, i64 6
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store i8 32, i8 addrspace(1)* %arrayidx6, align 1
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%arrayidx7 = getelementptr inbounds i8, i8 addrspace(1)* %data, i64 7
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store i8 87, i8 addrspace(1)* %arrayidx7, align 1
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%arrayidx8 = getelementptr inbounds i8, i8 addrspace(1)* %data, i64 8
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store i8 111, i8 addrspace(1)* %arrayidx8, align 1
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%arrayidx9 = getelementptr inbounds i8, i8 addrspace(1)* %data, i64 9
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store i8 114, i8 addrspace(1)* %arrayidx9, align 1
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%arrayidx10 = getelementptr inbounds i8, i8 addrspace(1)* %data, i64 10
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store i8 108, i8 addrspace(1)* %arrayidx10, align 1
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%arrayidx11 = getelementptr inbounds i8, i8 addrspace(1)* %data, i64 11
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store i8 100, i8 addrspace(1)* %arrayidx11, align 1
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%arrayidx12 = getelementptr inbounds i8, i8 addrspace(1)* %data, i64 12
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store i8 33, i8 addrspace(1)* %arrayidx12, align 1
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%arrayidx13 = getelementptr inbounds i8, i8 addrspace(1)* %data, i64 13
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store i8 72, i8 addrspace(1)* %arrayidx13, align 1
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ret void
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}
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