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.LBB0_1: # Linux
LBB0_1: # Darwin
llvm-svn: 164362
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Quick review against the manual revealed a few obvious mistakes.
llvm-svn: 164361
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- Fix PR5145 and turn on test 8-bit atomic ops
llvm-svn: 164358
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- Rewirte most atomic instructions in templates for both better
maintenance and future extensions, such as HLE in TSX.
llvm-svn: 164357
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Atomics.rst was not linked into the toctree.
Docs now build warning-free!
llvm-svn: 164356
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yaml2obj.rst was not included in the toctree
Input from Michael Spencer.
llvm-svn: 164355
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[-Wunused-variable]
llvm-svn: 164354
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s/@unaligned_i16_store/@unaligned_i16_load/g.
I guess this had apparently passed in +Asserts possibly due to verborsity.
llvm-svn: 164350
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Patch by Reed Kotler.
llvm-svn: 164349
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llvm-svn: 164347
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llvm-svn: 164346
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non-halfword-aligned i16 loads/stores.
rdar://12304911
llvm-svn: 164345
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llvm-svn: 164344
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llvm-svn: 164343
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The expression based expansion too often results in IR level optimizations
splitting the intermediate values into separate basic blocks, preventing
the formation of the VBSL instruction as the code author intended. In
particular, LICM would often hoist part of the computation out of a loop.
rdar://11011471
llvm-svn: 164340
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A PHI can't create interference on its own. If two live ranges interfere
at a PHI, they must also interfere when leaving one of the PHI
predecessors.
llvm-svn: 164330
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The old-fashioned many-to-one value mapping doesn't always work when
merging vector lanes. A value can map to multiple different values, and
it can even be necessary to insert new PHIs.
When a value number is defined by a copy from a value number that
required SSa update, include the live range of the copied value number
in the SSA update as well. It is not necessarily a copy of the original
value number any longer.
llvm-svn: 164329
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llvm-svn: 164326
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We already have HoistThenElseCodeToIf, this patch implements
SinkThenElseCodeToEnd. When END block has only two predecessors and each
predecessor terminates with unconditional branches, we compare instructions in
IF and ELSE blocks backwards and check whether we can sink the common
instructions down.
rdar://12191395
llvm-svn: 164325
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llvm-svn: 164320
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llvm-svn: 164317
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llvm-svn: 164311
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llvm-svn: 164309
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Attributes class.
llvm-svn: 164308
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llvm-svn: 164307
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llvm-svn: 164306
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llvm-svn: 164305
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llvm-svn: 164297
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Patch from Amara Emerson.
llvm-svn: 164296
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hundred bytes of static data. Change unsigned char in same table to uint8_t for explicitness.
llvm-svn: 164285
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llvm-svn: 164283
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Toctree was not being interlinked properly.
llvm-svn: 164282
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- Rewrite/merge pseudo-atomic instruction emitters to address the
following issue:
* Reduce one unnecessary load in spin-loop
previously the spin-loop looks like
thisMBB:
newMBB:
ld t1 = [bitinstr.addr]
op t2 = t1, [bitinstr.val]
not t3 = t2 (if Invert)
mov EAX = t1
lcs dest = [bitinstr.addr], t3 [EAX is implicit]
bz newMBB
fallthrough -->nextMBB
the 'ld' at the beginning of newMBB should be lift out of the loop
as lcs (or CMPXCHG on x86) will load the current memory value into
EAX. This loop is refined as:
thisMBB:
EAX = LOAD [MI.addr]
mainMBB:
t1 = OP [MI.val], EAX
LCMPXCHG [MI.addr], t1, [EAX is implicitly used & defined]
JNE mainMBB
sinkMBB:
* Remove immopc as, so far, all pseudo-atomic instructions has
all-register form only, there is no immedidate operand.
* Remove unnecessary attributes/modifiers in pseudo-atomic instruction
td
* Fix issues in PR13458
- Add comprehensive tests on atomic ops on various data types.
NOTE: Some of them are turned off due to missing functionality.
- Revise tests due to the new spin-loop generated.
llvm-svn: 164281
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LGTM by Michael Spencer
llvm-svn: 164280
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Try not to violate conventions immediately before explaining them.
llvm-svn: 164278
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llvm-svn: 164268
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Make the TargetPrefix setting one big setting instead of being spread out
everywhere. No functional change.
llvm-svn: 164265
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llvm-svn: 164264
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llvm-svn: 164261
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pattern can be very useful in cases where you want to define a multiclass that covers both commutative and non-commutative operators (say, add and sub).
llvm-svn: 164256
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ID number as a key in maps (for determinism), it is imperative that ID numbers be globally unique, even when we copy construct a Record.
This fixes some obscure failure cases involving registers defined inside multiclasses or foreach constructs that would not receive a unique ID, and would end up being omitted from the AsmMatcher tables.
llvm-svn: 164251
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A common coalescing conflict in vector code is lane insertion:
%dst = FOO
%src = BAR
%dst:ssub0 = COPY %src
The live range of %src interferes with the ssub0 lane of %dst, but that
lane is never read after %src would have clobbered it. That makes it
safe to merge the live ranges and eliminate the COPY:
%dst = FOO
%dst:ssub0 = BAR
This patch teaches the new coalescer to resolve conflicts where dead
vector lanes would be clobbered, at least as long as the clobbered
vector lanes don't escape the basic block.
llvm-svn: 164250
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implement section-specific protection handling in MCJIT.
llvm-svn: 164249
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to improve compatibility with GNU as.
Based on a patch by PaX Team.
Fixed assertion failures on non-Darwin and added additional test cases.
llvm-svn: 164248
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Anthony Bryant.
llvm-svn: 164247
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This patch is based on the one by PaX Team.
Patch by Andy Zhang!
llvm-svn: 164246
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The directive can be matched with directives other than '.rept'
Patch by Andy Zhang!
llvm-svn: 164245
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- Merge the processing of LOAD_ADD with other atomic load-arith
operations
- Separate the logic getting target constant for atomic-load-op and add
an optimization for atomic-load-add on i16 with negative value
- Optimize a minor case for atomic-fetch-add i16 with negative operand. Test
case is revised.
llvm-svn: 164243
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llvm-svn: 164238
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XFAIL needs a trailing colon. Hopefully this will get the buildbots
happy again while Bill works on getting it passing.
llvm-svn: 164237
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