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NAKAMURA Takumi [Wed, 19 Dec 2012 10:12:48 +0000 (10:12 +0000)]
X86ISelLowering.cpp: Fix warnings. [-Wlogical-op-parentheses]
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170523
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Patrik Hagglund [Wed, 19 Dec 2012 10:09:26 +0000 (10:09 +0000)]
Change TargetLowering::getCondCodeAction to take an MVT, instead of
EVT.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170522
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Bill Wendling [Wed, 19 Dec 2012 09:15:11 +0000 (09:15 +0000)]
Inline hasFunctionOnlyAttrs into its only use.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170518
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Bill Wendling [Wed, 19 Dec 2012 09:04:58 +0000 (09:04 +0000)]
Inline the only use of the hasParameterOnlyAttrs method.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170517
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Bill Wendling [Wed, 19 Dec 2012 08:57:40 +0000 (08:57 +0000)]
Inline the 'hasIncompatibleWithVarArgsAttrs' method into its only uses. And some minor comment reformatting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170516
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Nadav Rotem [Wed, 19 Dec 2012 08:43:05 +0000 (08:43 +0000)]
DOC: fix the url format.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170513
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Patrik Hagglund [Wed, 19 Dec 2012 08:28:51 +0000 (08:28 +0000)]
Change TargetLowering::getTruncStoreAction to take MVTs, instead of EVTs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170510
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Nadav Rotem [Wed, 19 Dec 2012 08:28:24 +0000 (08:28 +0000)]
DOC: add a benchmarks that compares us to gcc and icc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170509
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Elena Demikhovsky [Wed, 19 Dec 2012 07:50:20 +0000 (07:50 +0000)]
Optimized load + SIGN_EXTEND patterns in the X86 backend.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170506
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Nadav Rotem [Wed, 19 Dec 2012 07:39:08 +0000 (07:39 +0000)]
After reducing the size of an operation in the DAG we zero-extend the reduced
bitwidth op back to the original size. If we reduce ANDs then this can cause
an endless loop. This patch changes the ZEXT to ANY_EXTEND if the demanded bits
are equal or smaller than the size of the reduced operation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170505
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Nadav Rotem [Wed, 19 Dec 2012 07:36:35 +0000 (07:36 +0000)]
docs: fix typos.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170504
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Nadav Rotem [Wed, 19 Dec 2012 07:22:24 +0000 (07:22 +0000)]
DOC: Add a webpage that describes the loop and bb vectorizers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170503
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Bill Wendling [Wed, 19 Dec 2012 07:18:57 +0000 (07:18 +0000)]
Rename the 'Attributes' class to 'Attribute'. It's going to represent a single attribute in the future.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170502
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Craig Topper [Wed, 19 Dec 2012 06:43:58 +0000 (06:43 +0000)]
Remove more of 'else's after 'returns'. No functional change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170497
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Craig Topper [Wed, 19 Dec 2012 06:39:17 +0000 (06:39 +0000)]
Remove a bunch of 'else's after 'returns'
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170496
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Craig Topper [Wed, 19 Dec 2012 06:12:28 +0000 (06:12 +0000)]
Teach SimplifySetCC that comparing AssertZext i1 against a constant 1 can be rewritten as a compare against a constant 0 with the opposite condition.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170495
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Reed Kotler [Wed, 19 Dec 2012 04:06:15 +0000 (04:06 +0000)]
Add some missing Defs and Uses.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170493
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Shuxin Yang [Wed, 19 Dec 2012 01:10:17 +0000 (01:10 +0000)]
Make sure the buffer, which containas an instance of APFloat, has proper alignment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170486
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Kevin Enderby [Tue, 18 Dec 2012 23:47:28 +0000 (23:47 +0000)]
Add to the disassembler C API an option to print the disassembled
instructions in the assembly code variant if one exists.
The intended use for this is so tools like lldb and darwin's otool(1)
can be switched to print Intel-flavored disassembly.
I discussed extensively this API with Jim Grosbach and we feel
while it may not be fully general, in reality there is only one syntax
for each assembly with the exception of X86 which has exactly
two for historical reasons.
rdar://
10989182
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170477
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Jakob Stoklund Olesen [Tue, 18 Dec 2012 23:40:14 +0000 (23:40 +0000)]
Remove MachineInstr::setIsInsideBundle().
The bundle flags are now maintained by the slightly higher-level
functions bundleWithPred() / bundleWithSucc() which enforce consistent
bundle flags between neighboring instructions.
See also MIBundleBuilder for an even higher-level approach to building
bundles.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170475
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Jakob Stoklund Olesen [Tue, 18 Dec 2012 23:21:49 +0000 (23:21 +0000)]
Use bidirectional bundle flags to simplify important functions.
The bundle_iterator::operator++ function now doesn't need to dig out the
basic block and check against end(). It can use the isBundledWithSucc()
flag to find the last bundled instruction safely.
Similarly, MachineInstr::isBundled() no longer needs to look at
iterators etc. It only has to look at flags.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170473
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Shuxin Yang [Tue, 18 Dec 2012 23:10:12 +0000 (23:10 +0000)]
rdar://
12801297
InstCombine for unsafe floating-point add/sub.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170471
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Nadav Rotem [Tue, 18 Dec 2012 23:09:44 +0000 (23:09 +0000)]
Enable the loop vectorizer in clang and not in the pass manager, so that we can disable it in clang.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170470
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Jakob Stoklund Olesen [Tue, 18 Dec 2012 23:00:28 +0000 (23:00 +0000)]
Verify bundle flag consistency when setting them.
Now that the bundle flag aware APIs are all in place, it is possible to
continuously verify the flag consistency.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170465
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Jakub Staszak [Tue, 18 Dec 2012 22:57:56 +0000 (22:57 +0000)]
Reverse order of checking SSE level when calculating compare cost, so we check
AVX2 before AVX.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170464
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Jakob Stoklund Olesen [Tue, 18 Dec 2012 22:55:07 +0000 (22:55 +0000)]
Verify bundle flags for consistency in MachineVerifier.
The new bidirectional bundle flags are redundant, so inadvertent bundle
tearing can be detected in the machine code verifier.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170463
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Quentin Colombet [Tue, 18 Dec 2012 22:47:16 +0000 (22:47 +0000)]
Disable ARM partial flag dependency optimization at -Oz
To not over constrain the scheduler for ARM in thumb mode, some optimizations for code size reduction, specific to ARM thumb, are blocked when they add a dependency (like write after read dependency).
Disables this check when code size is the priority, i.e., code is compiled with -Oz.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170462
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Jakob Stoklund Olesen [Tue, 18 Dec 2012 21:36:05 +0000 (21:36 +0000)]
Don't allow the automatically updated MI flags to be set directly.
The bundle-related MI flags need to be kept in sync with the neighboring
instructions. Don't allow the bulk flag-setting setFlags() function to
change them.
Also don't copy MI flags when cloning an instruction. The clone's bundle
flags will be set when it is explicitly inserted into a bundle.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170459
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Jakob Stoklund Olesen [Tue, 18 Dec 2012 20:59:41 +0000 (20:59 +0000)]
Tighten up the splice() API for bundled instructions.
Remove the instr_iterator versions of the splice() functions. It doesn't
seem useful to be able to splice sequences of instructions that don't
consist of full bundles.
The normal splice functions that take MBB::iterator arguments are not
changed, and they can move whole bundles around without any problems.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170456
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Andrew Trick [Tue, 18 Dec 2012 20:53:01 +0000 (20:53 +0000)]
MISched: add dependence to ExitSU to model live-out latency.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170454
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Andrew Trick [Tue, 18 Dec 2012 20:52:58 +0000 (20:52 +0000)]
MISched: Cleanup, redundant statement.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170453
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Andrew Trick [Tue, 18 Dec 2012 20:52:56 +0000 (20:52 +0000)]
MISched: Heuristics, compare latency more precisely. It matters more for some targets.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170452
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Andrew Trick [Tue, 18 Dec 2012 20:52:54 +0000 (20:52 +0000)]
MISched: Remove SchedRemainder::IsResourceLimited. I don't know how to compute it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170451
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Andrew Trick [Tue, 18 Dec 2012 20:52:52 +0000 (20:52 +0000)]
MISched: cleanup, use the proper iterator type.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170450
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Andrew Trick [Tue, 18 Dec 2012 20:52:49 +0000 (20:52 +0000)]
MISched: minor improvement, initialize remaining resources before the first scheduling decision.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170449
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Jakob Stoklund Olesen [Tue, 18 Dec 2012 19:28:37 +0000 (19:28 +0000)]
Add an assertion for a likely ilist::splice() contract violation.
The single-element ilist::splice() function supports a noop move:
List.splice(I, List, I);
The corresponding std::list function doesn't allow that, so add a unit
test to document that behavior.
This also means that
List.splice(I, List, F);
is somewhat surprisingly not equivalent to
List.splice(I, List, F, next(F));
This patch adds an assertion to catch the illegal case I == F above.
Alternatively, we could make I == F a legal noop, but that would make
ilist differ even more from std::list.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170443
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Benjamin Kramer [Tue, 18 Dec 2012 18:40:20 +0000 (18:40 +0000)]
LoopVectorize: Emit reductions as log2(vectorsize) shuffles + vector ops instead of scalar operations.
For example on x86 with SSE4.2 a <8 x i8> add reduction becomes
movdqa %xmm0, %xmm1
movhlps %xmm1, %xmm1 ## xmm1 = xmm1[1,1]
paddw %xmm0, %xmm1
pshufd $1, %xmm1, %xmm0 ## xmm0 = xmm1[1,0,0,0]
paddw %xmm1, %xmm0
phaddw %xmm0, %xmm0
pextrb $0, %xmm0, %edx
instead of
pextrb $2, %xmm0, %esi
pextrb $0, %xmm0, %edx
addb %sil, %dl
pextrb $4, %xmm0, %esi
addb %dl, %sil
pextrb $6, %xmm0, %edx
addb %sil, %dl
pextrb $8, %xmm0, %esi
addb %dl, %sil
pextrb $10, %xmm0, %edi
pextrb $14, %xmm0, %edx
addb %sil, %dil
pextrb $12, %xmm0, %esi
addb %dil, %sil
addb %sil, %dl
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170439
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Eli Bendersky [Tue, 18 Dec 2012 18:21:29 +0000 (18:21 +0000)]
Get rid of the pesky -Woverloaded-virtual warning. No change in functionality.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170438
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Jakob Stoklund Olesen [Tue, 18 Dec 2012 17:54:53 +0000 (17:54 +0000)]
Tighten the insert() API for bundled instructions.
The normal insert() function takes an MBB::iterator position, and
inserts a stand-alone MachineInstr as before.
The insert() function that takes an MBB::instr_iterator position can
insert instructions inside a bundle, and will now update the bundle
flags correctly when that happens.
When the insert position is between two bundles, it is unclear whether
the instruction should be appended to the previous bundle, prepended to
the next bundle, or stand on its own. The MBB::insert() function doesn't
bundle the instruction in that case, use the MIBundleBuilder class for
that.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170437
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Hal Finkel [Tue, 18 Dec 2012 17:50:58 +0000 (17:50 +0000)]
Check multiple register classes for inline asm tied registers
A register can be associated with several distinct register classes.
For example, on PPC, the floating point registers are each associated with
both F4RC (which holds f32) and F8RC (which holds f64). As a result, this code
would fail when provided with a floating point register and an f64 operand
because it would happen to find the register in the F4RC class first and
return that. From the F4RC class, SDAG would extract f32 as the register
type and then assert because of the invalid implied conversion between
the f64 value and the f32 register.
Instead, search all register classes. If a register class containing the
the requested register has the requested type, then return that register
class. Otherwise, as before, return the first register class found that
contains the requested register.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170436
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Nadav Rotem [Tue, 18 Dec 2012 06:37:12 +0000 (06:37 +0000)]
Enable the loop vectorizer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170416
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Nadav Rotem [Tue, 18 Dec 2012 05:50:54 +0000 (05:50 +0000)]
Rename the test so that we can add additional vectors-of-pointers tests
into the same file in the future.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170414
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Nadav Rotem [Tue, 18 Dec 2012 05:23:31 +0000 (05:23 +0000)]
SROA: Replace calls to getScalarSizeInBits to DataLayout's API because
getScalarSizeInBits could not handle vectors of pointers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170412
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NAKAMURA Takumi [Tue, 18 Dec 2012 05:08:12 +0000 (05:08 +0000)]
llvm/test/MC/ELF/comp-dir.s: Appease MSYS Bash.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170410
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Rafael Espindola [Tue, 18 Dec 2012 03:35:05 +0000 (03:35 +0000)]
Initialize NoRedZone and remove unused default values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170404
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Eli Bendersky [Tue, 18 Dec 2012 00:53:36 +0000 (00:53 +0000)]
Cleanup comment and formatting
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170398
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Jakob Stoklund Olesen [Tue, 18 Dec 2012 00:46:39 +0000 (00:46 +0000)]
Repair bundles that were broken by removing and reinserting the first
instruction.
This isn't strictly necessary at the moment because Thumb2SizeReduction
also copies all MI flags from the old instruction to the new. However, a
future patch will make that kind of direct flag tampering illegal.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170395
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Eric Christopher [Tue, 18 Dec 2012 00:42:26 +0000 (00:42 +0000)]
Formatting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170394
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Eric Christopher [Tue, 18 Dec 2012 00:31:01 +0000 (00:31 +0000)]
Add support for passing -main-file-name all the way through to
the assembler.
Part of PR14624
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170390
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Eric Christopher [Tue, 18 Dec 2012 00:30:54 +0000 (00:30 +0000)]
Cleanup formatting and whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170389
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Jakob Stoklund Olesen [Tue, 18 Dec 2012 00:13:11 +0000 (00:13 +0000)]
Extract a method, no functional change intended.
Sadly, this costs us a perfectly good opportunity to use 'goto'.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170385
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Jakob Stoklund Olesen [Mon, 17 Dec 2012 23:55:38 +0000 (23:55 +0000)]
Tighten up the erase/remove API for bundled instructions.
Most code is oblivious to bundles and uses the MBB::iterator which only
visits whole bundles. MBB::erase() operates on whole bundles at a time
as before.
MBB::remove() now refuses to remove bundled instructions. It is not safe
to remove all instructions in a bundle without deleting them since there
is no way of returning pointers to all the removed instructions.
MBB::remove_instr() and MBB::erase_instr() will now update bundle flags
correctly, lifting individual instructions out of bundles while leaving
the remaining bundle intact.
The MachineInstr convenience functions are updated so
eraseFromParent() erases a whole bundle as before
eraseFromBundle() erases a single instruction, leaving the rest of its bundle.
removeFromParent() refuses to operate on bundled instructions, and
removeFromBundle() lifts a single instruction out of its bundle.
These functions will no longer accidentally split or coalesce bundles -
bundle flags are updated to preserve the existing bundling, and explicit
bundleWith* / unbundleFrom* functions should be used to change the
instruction bundling.
This API update is still a work in progress. I am going to update APIs
first so they maintain bundle flags automatically when possible. Then
I'll add stricter verification of the bundle flags.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170384
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Reed Kotler [Mon, 17 Dec 2012 23:41:45 +0000 (23:41 +0000)]
EmitDebugLabel should by default be the same as EmitLabel everywhere.
It must be explicity set in MCPureStreamer because otherwise it will
inherit incorrectly from the parent.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170383
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Eli Bendersky [Mon, 17 Dec 2012 22:50:56 +0000 (22:50 +0000)]
fix indentation
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170381
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Chad Rosier [Mon, 17 Dec 2012 22:35:29 +0000 (22:35 +0000)]
[arm fast-isel] Minor cleanup. No functional change intended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170379
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Nick Kledzik [Mon, 17 Dec 2012 22:11:17 +0000 (22:11 +0000)]
Fix some integer constant warnings by using a suffix
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170376
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Chandler Carruth [Mon, 17 Dec 2012 21:44:50 +0000 (21:44 +0000)]
Add a triple to this test -- it has to be an ELF platform...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170374
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Chandler Carruth [Mon, 17 Dec 2012 21:32:42 +0000 (21:32 +0000)]
Prepare LLVM to fix PR14625, exposing a hook in MCContext to manage the
compilation directory.
This defaults to the current working directory, just as it always has,
but now an assembler can choose to override it with a custom directory.
I've taught llvm-mc about this option and added a test case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170371
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Nick Kledzik [Mon, 17 Dec 2012 20:43:53 +0000 (20:43 +0000)]
re-enable test cases now that traits work with g++. Fix some g++ warnings
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170369
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Michael Ilseman [Mon, 17 Dec 2012 20:40:14 +0000 (20:40 +0000)]
Remove trailing whitespace
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170368
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Michael Ilseman [Mon, 17 Dec 2012 20:37:55 +0000 (20:37 +0000)]
Removed trailing whitespace
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170367
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Chad Rosier [Mon, 17 Dec 2012 19:59:43 +0000 (19:59 +0000)]
[arm fast-isel] Fast-isel only handles simple VTs, so make sure the necessary
checks are in place. Some minor cleanup as well.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170360
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Nick Kledzik [Mon, 17 Dec 2012 19:02:05 +0000 (19:02 +0000)]
Use different trait techniques to be compatible with g++
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170355
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Chandler Carruth [Mon, 17 Dec 2012 18:48:07 +0000 (18:48 +0000)]
Fix another SROA crasher, PR14601.
This was a silly oversight, we weren't pruning allocas which were used
by variable-length memory intrinsics from the set that could be widened
and promoted as integers. Fix that.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170353
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Tim Northover [Mon, 17 Dec 2012 17:59:35 +0000 (17:59 +0000)]
Query section for whether it should be executable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170350
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Tim Northover [Mon, 17 Dec 2012 17:59:32 +0000 (17:59 +0000)]
Teach MachO which sections contain code
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170349
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Evgeniy Stepanov [Mon, 17 Dec 2012 16:30:05 +0000 (16:30 +0000)]
[msan] Fix lint warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170347
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Richard Osborne [Mon, 17 Dec 2012 16:28:02 +0000 (16:28 +0000)]
Add instruction encodings / disassembly support for l2r instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170345
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Tom Stellard [Mon, 17 Dec 2012 15:14:56 +0000 (15:14 +0000)]
R600: enable S_*N2_* instructions
They seem to work fine.
Patch by: Christian König
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
Tested-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Christian König <deathsimple@vodafone.de>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170343
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Tom Stellard [Mon, 17 Dec 2012 15:14:54 +0000 (15:14 +0000)]
R600: BB operand support for SI
Patch by: Christian König
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
Tested-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Christian König <deathsimple@vodafone.de>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170342
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Tom Stellard [Mon, 17 Dec 2012 15:14:53 +0000 (15:14 +0000)]
R600: remove nonsense setPrefLoopAlignment
The Align parameter is a power of two, so 16 results in 64K
alignment. Additional to that even 16 byte alignment doesn't
make any sense, so just remove it.
Patch by: Christian König
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
Tested-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Christian König <deathsimple@vodafone.de>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170341
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Chandler Carruth [Mon, 17 Dec 2012 14:51:24 +0000 (14:51 +0000)]
Teach the rewriting of memcpy calls to support subvector copies.
This also cleans up a bit of the memcpy call rewriting by sinking some
irrelevant code further down and making the call-emitting code a bit
more concrete.
Previously, memcpy of a subvector would actually miscompile (!!!) the
copy into a single vector element copy. I have no idea how this ever
worked. =/ This is the memcpy half of PR14478 which we probably weren't
noticing previously because it didn't actually assert.
The rewrite relies on the newly refactored insert- and extractVector
functions to do the heavy lifting, and those are the same as used for
loads and stores which makes the test coverage a bit more meaningful
here.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170338
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Patrik Hagglund [Mon, 17 Dec 2012 14:30:06 +0000 (14:30 +0000)]
Revert/correct some FastISel changes in r170104 (EVT->MVT for
TargetLowering::getRegClassFor).
Some isSimple() guards were missing, or getSimpleVT() were hoisted too
far, resulting in asserts on valid LLVM assembly input.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170336
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Evgeniy Stepanov [Mon, 17 Dec 2012 14:28:00 +0000 (14:28 +0000)]
Optimize tree walking in markAliveBlocks.
Check whether a BB is known as reachable before adding it to the worklist.
This way BB's with multiple predecessors are added to the list no more than
once.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170335
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Richard Osborne [Mon, 17 Dec 2012 14:23:54 +0000 (14:23 +0000)]
Add instruction encodings for PEEK and ENDIN.
Previously these were marked with the wrong format.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170334
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Chandler Carruth [Mon, 17 Dec 2012 14:03:01 +0000 (14:03 +0000)]
Fix a secondary bug I introduced while fixing the first part of PR14478.
The first half of fixing this bug was actually in r170328, but was
entirely coincidental. It did however get me to realize the nature of
the bug, and adapt the test case to test more interesting behavior. In
turn, that uncovered the rest of the bug which I've fixed here.
This should fix two new asserts that showed up in the vectorize nightly
tester.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170333
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Richard Osborne [Mon, 17 Dec 2012 13:55:49 +0000 (13:55 +0000)]
Fix parameter name in prototypes in XCoreDisassembler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170332
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Chandler Carruth [Mon, 17 Dec 2012 13:51:03 +0000 (13:51 +0000)]
Hoist a convertValue call to the two paths where it is needed.
I noticed this while looking at r170328. We only ever do a vector
rewrite when the alloca *is* the vector type, so it's good to not paper
over bugs here by doing a convertValue that isn't needed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170331
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Richard Osborne [Mon, 17 Dec 2012 13:50:04 +0000 (13:50 +0000)]
Add instruction encodings / disassembly support for rus instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170330
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Chandler Carruth [Mon, 17 Dec 2012 13:41:21 +0000 (13:41 +0000)]
Hoist the insertVector helper to be a static helper.
This will allow its use inside of memcpy rewriting as well. This routine
is more complex than extractVector, and some of its uses are not 100%
where I want them to be so there is still some work to do here.
While this can technically change the output in some cases, it shouldn't
be a change that matters -- IE, it can leave some dead code lying around
that prior versions did not, etc.
Yet another step in the refactorings leading up to the solution to the
last component of PR14478.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170328
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Richard Osborne [Mon, 17 Dec 2012 13:20:37 +0000 (13:20 +0000)]
Add instruction encodings for ZEXT and SEXT.
Previously these were marked with the wrong format.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170327
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Chandler Carruth [Mon, 17 Dec 2012 13:07:30 +0000 (13:07 +0000)]
Lift the extractVector helper all the way out to a static helper function.
The method helpers all implicitly act upon the alloca, and what we
really want is a fully generic helper. Doing memcpy rewrites is more
special than all other rewrites because we are at times rewriting
instructions which touch pointers *other* than the alloca. As
a consequence all of the helpers needed by memcpy rewriting of
sub-vector copies will need to be generalized fully.
Note that all of these helpers ({insert,extract}{Integer,Vector}) are
woefully uncommented. I'm going to go back through and document them
once I get the factoring correct.
No functionality changed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170325
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Chandler Carruth [Mon, 17 Dec 2012 12:50:21 +0000 (12:50 +0000)]
Factor the vector load rewriting into a more generic form.
This makes it suitable for use in rewriting memcpy in the presence of
subvector memcpy intrinsics.
No functionality changed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170324
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Richard Osborne [Mon, 17 Dec 2012 12:29:31 +0000 (12:29 +0000)]
Add instruction encodings / disassembly support for 2r instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170323
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Richard Osborne [Mon, 17 Dec 2012 12:26:29 +0000 (12:26 +0000)]
Add instruction encodings / disassembly support for 0r instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170322
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Richard Osborne [Mon, 17 Dec 2012 12:13:46 +0000 (12:13 +0000)]
Simplify assertion in XCoreInstPrinter.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170321
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Richard Osborne [Mon, 17 Dec 2012 12:13:41 +0000 (12:13 +0000)]
Update comments to match recommended doxygen style.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170320
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Richard Osborne [Mon, 17 Dec 2012 12:13:32 +0000 (12:13 +0000)]
Remove unnecessary include.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170319
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Duncan Sands [Mon, 17 Dec 2012 12:02:36 +0000 (12:02 +0000)]
Fix typo that results in new landing pads not getting a name, fixing PR14617.
Patch by Chris Toshok.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170318
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Duncan Sands [Mon, 17 Dec 2012 11:43:15 +0000 (11:43 +0000)]
Fix comment typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170317
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Craig Topper [Mon, 17 Dec 2012 06:13:48 +0000 (06:13 +0000)]
Remove EFLAGS from the BLSI/BLSMSK/BLSR patterns. The nodes created by DAG combine don't contain an EFLAGS def.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170308
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Craig Topper [Mon, 17 Dec 2012 05:12:30 +0000 (05:12 +0000)]
Simplify BMI ANDN matching to use patterns instead of a DAG combine. Also add ANDN to isDefConvertible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170305
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Craig Topper [Mon, 17 Dec 2012 05:02:29 +0000 (05:02 +0000)]
Add rest of BMI/BMI2 instructions to the folding tables as well as popcnt and lzcnt.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170304
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Craig Topper [Mon, 17 Dec 2012 04:55:07 +0000 (04:55 +0000)]
Remove store forms of DEC/INC from isDefConvertible. Since they are stores they don't have a register def.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170303
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Chandler Carruth [Mon, 17 Dec 2012 04:07:37 +0000 (04:07 +0000)]
Fix the first part of PR14478: memset now works.
PR14478 highlights a serious problem in SROA that simply wasn't being
exercised due to a lack of vector input code mixed with C-library
function calls. Part of SROA was written carefully to handle subvector
accesses via memset and memcpy, but the rewriter never grew support for
this. Fixing it required refactoring the subvector access code in other
parts of SROA so it could be shared, and then fixing the splat formation
logic and using subvector insertion (this patch).
The PR isn't quite fixed yet, as memcpy is still broken in the same way.
I'm starting on that series of patches now.
Hopefully this will be enough to bring the bullet benchmark back to life
with the bb-vectorizer enabled, but that may require fixing memcpy as
well.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170301
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Chandler Carruth [Mon, 17 Dec 2012 04:07:35 +0000 (04:07 +0000)]
Extract the logic for inserting a subvector into a vector alloca.
No functionality changed. Another step of refactoring toward solving
PR14487.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170300
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Chandler Carruth [Mon, 17 Dec 2012 04:07:30 +0000 (04:07 +0000)]
Lift the integer splat computation into a helper function.
No functionality changed. Refactoring leading up to the fix for PR14478
which requires some significant changes to the memset and memcpy
rewriting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170299
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Craig Topper [Mon, 17 Dec 2012 03:56:00 +0000 (03:56 +0000)]
Add debug prints for when optimizeLoadInstr folds a load.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170298
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Richard Osborne [Sun, 16 Dec 2012 18:06:30 +0000 (18:06 +0000)]
Add tests for disassembly of 1r XCore instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170295
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Richard Osborne [Sun, 16 Dec 2012 17:37:34 +0000 (17:37 +0000)]
Add instruction encodings and disassembly for 1r instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170293
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