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When fusing instructions A and B, we must add all predecessors of B as
predecessors of A to avoid instructions getting scheduling in between.
There is a special case involving ExitSU: Every other node must be
scheduled before it by design and we don't need to make this explicit in
the graph, however when fusing with a different node we need to schedule
every othere node before the fused node too and we need to make this
explicit now: This patch adds a dependency from the fused node to all
roots in the graph.
Differential Revision: https://reviews.llvm.org/D49830
llvm-svn: 338046
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The DEBUG() macro is very generic so it might clash with other projects.
The renaming was done as follows:
- git grep -l 'DEBUG' | xargs sed -i 's/\bDEBUG\s\?(/LLVM_DEBUG(/g'
- git diff -U0 master | ../clang/tools/clang-format/clang-format-diff.py -i -p1 -style LLVM
- Manual change to APInt
- Manually chage DOCS as regex doesn't match it.
In the transition period the DEBUG() macro is still present and aliased
to the LLVM_DEBUG() one.
Differential Revision: https://reviews.llvm.org/D43624
llvm-svn: 332240
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We've been running doxygen with the autobrief option for a couple of
years now. This makes the \brief markers into our comments
redundant. Since they are a visual distraction and we don't want to
encourage more \brief markers in new code either, this patch removes
them all.
Patch produced by
for i in $(git grep -l '\\brief'); do perl -pi -e 's/\\brief //g' $i & done
Differential Revision: https://reviews.llvm.org/D46290
llvm-svn: 331272
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When either instruction in a fused pair has no other dependency, besides on
the other instruction, make sure that other instructions do not get
scheduled between them. Additionally, avoid fusing an instruction more than
once along the same dependency chain.
Differential revision: https://reviews.llvm.org/D36704
llvm-svn: 320420
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This header includes CodeGen headers, and is not, itself, included by
any Target headers, so move it into CodeGen to match the layering of its
implementation.
llvm-svn: 317647
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Rename missing DEBUG_TYPE "machine-scheduler" from backend files, which were
absent from https://reviews.llvm.org/rL303921.
Differential revision: https://reviews.llvm.org/D35231
llvm-svn: 307719
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warnings; other minor fixes (NFC).
llvm-svn: 306341
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Use llvm::make_unique to avoid ambiguity with MSVC.
This patch adds a generic MacroFusion pass, that is used on X86 and
AArch64, which both define target-specific shouldScheduleAdjacent
functions. This generic pass should make it easier for other targets to
implement macro fusion and I intend to add macro fusion for ARM shortly.
Differential Revision: https://reviews.llvm.org/D34144
llvm-svn: 305690
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This causes Windows buildbot failures do an ambiguous call.
llvm-svn: 305681
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Summary:
This patch adds a generic MacroFusion pass, that is used on X86 and
AArch64, which both define target-specific shouldScheduleAdjacent
functions. This generic pass should make it easier for other targets to
implement macro fusion and I intend to add macro fusion for ARM shortly.
Reviewers: craig.topper, evandro, t.p.northover, atrick, MatzeB
Reviewed By: MatzeB
Subscribers: atrick, aemerson, mgorny, javed.absar, kristof.beyls, llvm-commits
Differential Revision: https://reviews.llvm.org/D34144
llvm-svn: 305677
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