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On ARC ISA, general format of load instruction is this:
LD<zz><.x><.aa><.di> a, [b,c]
And general format of store is this:
ST<zz><.aa><.di> c, [b,s9]
Where:
<zz> is data size field and can be one of
<empty> (bits 00) - Word (32-bit), default behavior
B (bits 01) - Byte
H (bits 10) - Half-word (16-bit)
<.x> is data extend mode:
<empty> (bit 0) - If size is not Word(32-bit), then data is zero extended
X (bit 1) - If size is not Word(32-bit), then data is sign extended
<.aa> is address write-back mode:
<empty> (bits 00) - no write-back
.AW (bits 01) - Preincrement, base register updated pre memory transaction
.AB (bits 10) - Postincrement, base register updated post memory transaction
<.di> is cache bypass mode:
<empty> (bit 0) - Cached memory access, default mode
.DI (bit 1) - Non-cached data memory access
This patch adds these load/store instruction variants to the ARC backend.
Patch By Denis Antrushin! <denis@synopsys.com>
Differential Revision: https://reviews.llvm.org/D58980
llvm-svn: 356200
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places instead of just comparing opcode. NFCI
I'm looking at adding a second INLINEASM opcode for better modeling asm-goto
as a terminator. Using the existing predicate will reduce teh number of
places that will need to use the new opcode.
llvm-svn: 353095
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to reflect the new license.
We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.
Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.
llvm-svn: 351636
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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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Because we create a new kind of debug instruction, DBG_LABEL, we need to
check all passes which use isDebugValue() to check MachineInstr is debug
instruction or not. When expelling debug instructions, we should expel
both DBG_VALUE and DBG_LABEL. So, I create a new function,
isDebugInstr(), in MachineInstr to check whether the MachineInstr is
debug instruction or not.
This patch has no new test case. I have run regression test and there is
no difference in regression test.
Differential Revision: https://reviews.llvm.org/D45342
Patch by Hsiangkai Wang.
llvm-svn: 331844
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Summary: Added VS and VC, required for disassembling.
Reviewers: petecoup
Reviewed By: petecoup
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D42172
llvm-svn: 322718
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LLVM Coding Standards:
Function names should be verb phrases (as they represent actions), and
command-like function should be imperative. The name should be camel
case, and start with a lower case letter (e.g. openFile() or isFoo()).
Differential Revision: https://reviews.llvm.org/D40416
llvm-svn: 319168
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Add the ARC backend as an experimental target to lib/Target.
Reviewed at: https://reviews.llvm.org/D36331
llvm-svn: 311667
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