James Molloy [Mon, 20 Jan 2014 17:14:48 +0000 (17:14 +0000)]
Remove the useless pseudo instructions VDUPfdf and VDUPfqf, replacing them with patterns to match VDUPLN.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199675
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NAKAMURA Takumi [Mon, 20 Jan 2014 17:05:49 +0000 (17:05 +0000)]
[CMake] LLVMProcessSources.cmake: Add include(CMakeParseArguments).
I didn't realize that cmake_parse_arguments() would require explicit inclusion.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199674
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NAKAMURA Takumi [Mon, 20 Jan 2014 15:47:15 +0000 (15:47 +0000)]
Whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199667
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Hal Finkel [Mon, 20 Jan 2014 14:15:28 +0000 (14:15 +0000)]
Fix misched-aa-colored.ll to require asserts (trying again)
Perhaps it needs to be in caps.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199661
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Hal Finkel [Mon, 20 Jan 2014 14:09:34 +0000 (14:09 +0000)]
Fix misched-aa-colored.ll to require asserts.
-misched=shuffle is NDEBUG only. Maybe we should change that.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199659
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Hal Finkel [Mon, 20 Jan 2014 14:03:16 +0000 (14:03 +0000)]
Update IR when merging slots in stack coloring
The way that stack coloring updated MMOs when merging stack slots, while
correct, is suboptimal, and is incompatible with the use of AA during
instruction scheduling. The solution, which involves the use of const_cast (and
more importantly, updating the IR from within an MI-level pass), obviously
requires some explanation:
When the stack coloring pass was originally committed, the code in
ScheduleDAGInstrs::buildSchedGraph tracked possible alias sets by using
GetUnderlyingObject, and all load/store and store/store memory control
dependencies where added between SUs at the object level (where only one
object, that returned by GetUnderlyingObject, was used to identify the object
associated with each MMO). When stack coloring merged stack slots, it would
replace MMOs derived from the remapped alloca with the alloca with which the
remapped alloca was being replaced. Because ScheduleDAGInstrs only used single
objects, and tracked alias sets at the object level, this was a fine solution.
In r169744, (Andy and) I updated the code in ScheduleDAGInstrs to use
GetUnderlyingObjects, and track alias sets using, potentially, multiple
underlying objects for each MMO. This was done, primarily, to provide the
ability to look through PHIs, and provide better scheduling for
induction-variable-dependent loads and stores inside loops. At this point, the
MMO-updating code in stack coloring became suboptimal, because it would clear
the MMOs for (i.e. completely pessimize) all instructions for which r169744
might help in scheduling. Updating the IR directly is the simplest fix for this
(and the one with, by far, the least compile-time impact), but others are
possible (we could give each MMO a small vector of potential values, or make
use of a remapping table, constructed from MFI, inside ScheduleDAGInstrs).
Unfortunately, replacing all MMO values derived from the remapped alloca with
the base replacement alloca fundamentally breaks our ability to use AA during
instruction scheduling (which is critical to performance on some targets). The
reason is that the original MMO might have had an offset (either constant or
dynamic) from the base remapped alloca, and that offset is not present in the
updated MMO. One possible way around this would be to use
GetPointerBaseWithConstantOffset, and update not only the MMO's value, but also
its offset based on the original offset. Unfortunately, this solution would
only handle constant offsets, and for safety (because AA is not completely
restricted to deducing relationships with constant offsets), we would need to
clear all MMOs without constant offsets over the entire function. This would be
an even worse pessimization than the current single-object restriction. Any
other solution would involve passing around a vector of remapped allocas, and
teaching AA to use it, introducing additional complexity and overhead into AA.
Instead, when remapping an alloca, we replace all IR uses of that alloca as
well (optionally inserting a bitcast as necessary). This is even more efficient
that the old MMO-updating code in the stack coloring pass (because it removes
the need to call GetUnderlyingObject on all MMO values), removes the
single-object pessimization in the default configuration, and enables the
correct use of AA during instruction scheduling (all without any additional
overhead).
LLVM now no longer miscompiles itself on x86_64 when using -enable-misched
-enable-aa-sched-mi -misched-bottomup=0 -misched-topdown=0 -misched=shuffle!
Fixed PR18497.
Because the alloca replacement is now done at the IR level, unless the MMO
directly refers to the remapped alloca, the change cannot be seen at the MI
level. As a result, there is no good way to fix test/CodeGen/X86/pr14090.ll.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199658
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Hal Finkel [Mon, 20 Jan 2014 14:03:02 +0000 (14:03 +0000)]
Track multiple stores per object when using AA in ScheduleDAGInstrs
When using AA to break false chain dependencies, we need to track multiple
stores per object in ScheduleDAGInstrs. Historically, we tracked potential alias
chains at the object level, and so all loads of an object would retain
dependencies on any store to that object. With AA, however, this is not
sufficient: non-overlapping stores and loads to the same object all need to be
tested for dependencies separately, we cannot only test all loads to an object
against only the last store (see PR18497 for an explicit example).
To mitigate any unwelcome compile-time impact when not using AA, only one store
is kept in the list per object when not using AA.
This, along with a stack coloring change to come shortly, will provide a test
case, fix PR18497 (and allow LLVM to compile itself using -enable-aa-sched-mi
on x86-64).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199657
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David Woodhouse [Mon, 20 Jan 2014 12:02:53 +0000 (12:02 +0000)]
[x86] Fix disassembly of MOV16ao16 et al.
The addition of IC_OPSIZE_ADSIZE in r198759 wasn't quite complete. It
also turns out to have been unnecessary. The disassembler handles the
AdSize prefix for itself, and doesn't care about the difference between
(e.g.) MOV8ao8 and MOB8ao8_16 definitions. So just let them coexist and
don't worry about it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199654
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David Woodhouse [Mon, 20 Jan 2014 12:02:48 +0000 (12:02 +0000)]
[x86] Fix 16-bit disassembly of JCXZ/JECXZ
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199653
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David Woodhouse [Mon, 20 Jan 2014 12:02:44 +0000 (12:02 +0000)]
[x86] Rename MOVSD/STOSD/LODSD/OUTSD to MOVSL/STOSL/LODSL/OUTSL
The disassembler has a special case for 'L' vs. 'W' in its heuristic for
checking for 32-bit and 16-bit equivalents. We could expand the heuristic,
but better just to be consistent in using the 'L' suffix.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199652
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David Woodhouse [Mon, 20 Jan 2014 12:02:40 +0000 (12:02 +0000)]
[x86] Fix disassembly of callw instruction
Not quite sure why this was marked isAsmParserOnly, but it means that the
disassembler can't see it either.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199651
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David Woodhouse [Mon, 20 Jan 2014 12:02:35 +0000 (12:02 +0000)]
[x86] Fix 16-bit handling of OpSize bit
When disassembling in 16-bit mode the meaning of the OpSize bit is
inverted. Instructions found in the IC_OPSIZE context will actually
*not* have the 0x66 prefix, and instructions in the IC context will
have the 0x66 prefix. Make use of the existing special-case handling
for the 0x66 prefix being in the wrong place, to cope with this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199650
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David Woodhouse [Mon, 20 Jan 2014 12:02:31 +0000 (12:02 +0000)]
[x86] Infer disassembler mode from SubtargetInfo feature bits
Aside from cleaning up the code, this also adds support for the -code16
environment and actually enables the MODE_16BIT mode that was previously
not accessible.
There is no point adding any testing for 16-bit yet though; basically
nothing will work because we aren't handling the OpSize prefix correctly
for 16-bit mode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199649
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David Woodhouse [Mon, 20 Jan 2014 12:02:25 +0000 (12:02 +0000)]
[x86] Support i386-*-*-code16 triple for emitting 16-bit code
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199648
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Chandler Carruth [Mon, 20 Jan 2014 11:34:08 +0000 (11:34 +0000)]
[PM] Wire up the Verifier for the new pass manager and connect it to the
various opt verifier commandline options.
Mostly mechanical wiring of the verifier to the new pass manager.
Exercises one of the more unusual aspects of it -- a pass can be either
a module or function pass interchangably. If this is ever problematic,
we can make things more constrained, but for things like the verifier
where there is an "obvious" applicability at both levels, it seems
convenient.
This is the next-to-last piece of basic functionality left to make the
opt commandline driving of the new pass manager minimally functional for
testing and further development. There is still a lot to be done there
(notably the factoring into .def files to kill the current boilerplate
code) but it is relatively uninteresting. The only interesting bit left
for minimal functionality is supporting the registration of analyses.
I'm planning on doing that on top of the .def file switch mostly because
the boilerplate for the analyses would be significantly worse.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199646
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Kai Nacke [Mon, 20 Jan 2014 11:00:40 +0000 (11:00 +0000)]
ARM: add tlsldo relocation
Add support for the symbol(tlsldo) relocation. This is required in order to
solve PR18554.
Reviewed by R. Golin, A. Korobeynikov.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199644
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NAKAMURA Takumi [Mon, 20 Jan 2014 10:20:23 +0000 (10:20 +0000)]
[CMake] llvm_process_sources: Introduce a parameter, ADDITIONAL_HEADERS.
ADDITIONAL_HEADERS is intended to add header files for IDEs as hint.
For example:
add_llvm_library(LLVMSupport
Host.cpp
ADDITIONAL_HEADERS
Unix/Host.inc
Windows/Host.inc
)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199639
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Artyom Skrobov [Mon, 20 Jan 2014 10:18:42 +0000 (10:18 +0000)]
[ARM] Do not generate Tag_DIV_use=AllowDIVExt when hardware div is non-optional: it should have the default value of AllowDIVIfExists
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199638
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Chandler Carruth [Mon, 20 Jan 2014 10:15:32 +0000 (10:15 +0000)]
Revert my commit in r199620 that added sections about namespaces to the
coding standards, and instead fix the existing section.
Thanks to Daniel Jasper for pointing out we already had a section
devoted to this topic. Instead of adding sections, just hack on this
section some. Also fix the example in the anonymous namespace section
below it to agree with the new advice.
As a re-cap, this switches the LLVM preferred style to never indent
namespaces. Having two approaches just led to endless (and utterly
pointless) debates about what was "small enough". This wasn't helping
anyone. The no-indent rule is easy to understand and doesn't really make
anything harder to read. Moreover, with tools like clang-format it is
considerably nicer to have simple consistent rules.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199637
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Chandler Carruth [Mon, 20 Jan 2014 08:18:01 +0000 (08:18 +0000)]
Revert r199628: "[AArch64 NEON] Fix a bug caused by undef lane when generating VEXT."
This test fails the newly added regression tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199631
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Chandler Carruth [Mon, 20 Jan 2014 08:07:07 +0000 (08:07 +0000)]
Fix a DenseMap iterator invalidation bug causing lots of crashes when
type units were enabled. The crux of the issue is that the
addDwarfTypeUnitType routine can end up being indirectly recursive. In
this case, the reference into the dense map (TU) became invalid by the
time we popped all the way back and used it to add the DIE type
signature.
Instead, use early return in the case where we can bypass the recursive
step and creating a type unit. Then use the pointer to the new type unit
to set up the DIE type signature in the case where we have to.
I tried really hard to reduce a testcase for this, but it's really
annoying. You have to get this to be mid-recursion when the densemap
grows. Even if we got a test case for this today, it'd be very unlikely
to continue exercising this pattern.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199630
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Owen Anderson [Mon, 20 Jan 2014 07:44:53 +0000 (07:44 +0000)]
Fix all the remaining lost-fast-math-flags bugs I've been able to find. The most important of these are cases in the generic logic for combining BinaryOperators.
This logic hadn't been updated to handle FastMathFlags, and it took me a while to detect it because it doesn't show up in a simple search for CreateFAdd.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199629
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Kevin Qin [Mon, 20 Jan 2014 07:32:26 +0000 (07:32 +0000)]
[AArch64 NEON] Fix a bug caused by undef lane when generating VEXT.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199628
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Saleem Abdulrasool [Mon, 20 Jan 2014 04:10:11 +0000 (04:10 +0000)]
MC: whitespace
Remove hard tabs in favour of spaces. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199624
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Chandler Carruth [Mon, 20 Jan 2014 02:32:02 +0000 (02:32 +0000)]
[PM] Fix a contradiction in the comments noticed by Anders.
Have I mentioned that functions returning true on error and false on
success are confusing? They're more confusing when their name is
"verify". Anyways...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199622
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Kevin Qin [Mon, 20 Jan 2014 02:14:05 +0000 (02:14 +0000)]
[AArch64 NEON] Accept both #0.0 and #0 for comparing with floating point zero in asm parser.
For FCMEQ, FCMGE, FCMGT, FCMLE and FCMLT, floating point zero will be
printed as #0.0 instead of #0. To support the history codes using #0,
we consider to let asm parser accept both #0.0 and #0.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199621
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Chandler Carruth [Mon, 20 Jan 2014 01:40:43 +0000 (01:40 +0000)]
Add some wording to the coding standards to say how to indent namespaces
(and to mention namespace ending comments). This is based on a quick
discussion on the developer mailing list where there was essentially no
objections to a simple and consistent rule. This should avoid future
debates about whether or not a namespace is "big enough" to indent. It
also matches clang-format's current behavior with LLVM source code which
hasn't really seen any opposition in code reviews that I spot checked.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199620
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Michael Gottesman [Sun, 19 Jan 2014 21:06:00 +0000 (21:06 +0000)]
Move the retrieval of VT after all of the early exits from PerformOrCombine that do not use VT. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199612
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Michael Gottesman [Sun, 19 Jan 2014 20:33:48 +0000 (20:33 +0000)]
[APInt] Fix nearestLogBase2 to return correct answers for very large APInt and APInt with a bitwidth of 1.
I also improved the comments, added some more tests, etc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199610
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Michael Gottesman [Sun, 19 Jan 2014 20:33:38 +0000 (20:33 +0000)]
[APInt] Fixed bug where APInt(UINT32_MAX, 0) would blow up when being constructed.
This was due to arithmetic overflow in the getNumBits() computation. Now we
cast BitWidth to a uint64_t so that does not occur during the computation. After
the computation is complete, the uint64_t is truncated when the function
returns.
I know that this is not something that is likely to happen, but it *IS* a valid
input and we should not blow up.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199609
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Benjamin Kramer [Sun, 19 Jan 2014 20:05:13 +0000 (20:05 +0000)]
InstCombine: Modernize a bunch of cast combines.
Also make them vector-aware.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199608
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Benjamin Kramer [Sun, 19 Jan 2014 16:56:10 +0000 (16:56 +0000)]
InstCombine: Hoist 3 copies of AddOne/SubOne into a header.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199605
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Benjamin Kramer [Sun, 19 Jan 2014 16:48:41 +0000 (16:48 +0000)]
InstCombine: Replace a hand-rolled version of isKnownToBeAPowerOfTwo with the real thing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199604
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Benjamin Kramer [Sun, 19 Jan 2014 15:24:22 +0000 (15:24 +0000)]
InstCombine: Teach most integer add/sub/mul/div combines how to deal with vectors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199602
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Benjamin Kramer [Sun, 19 Jan 2014 13:36:27 +0000 (13:36 +0000)]
InstCombine: Refactor fmul/fdiv combines to handle vectors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199598
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NAKAMURA Takumi [Sun, 19 Jan 2014 12:52:10 +0000 (12:52 +0000)]
[CMake] Introduce new scheme of LLVM_TOOLS_BINARY_DIR and LLVM_LIBRARY_DIR
In LLVM build tree, they points corresponding INTDIR.
In Clang standalone tree, they points external dir (llvm-config's --bindir and --libdir).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199595
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NAKAMURA Takumi [Sun, 19 Jan 2014 12:47:26 +0000 (12:47 +0000)]
[CMake] Add comments in llvm/CMakeLists.txt.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199594
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NAKAMURA Takumi [Sun, 19 Jan 2014 12:47:22 +0000 (12:47 +0000)]
[CMake] Deprecate LLVM_TOOLS_BINARY_DIR.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199593
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NAKAMURA Takumi [Sun, 19 Jan 2014 12:47:18 +0000 (12:47 +0000)]
[CMake] Prune deprecate usage of CMAKE_RUNTIME_OUTPUT_DIRECTORY.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199592
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Chandler Carruth [Sun, 19 Jan 2014 12:16:54 +0000 (12:16 +0000)]
Fix a really nasty SROA bug with how we handled out-of-bounds memcpy
intrinsics.
Reported on the list by Evan with a couple of attempts to fix, but it
took a while to dig down to the root cause. There are two overlapping
bugs here, both centering around the circumstance of discovering
a memcpy operand which is known to be completely outside the bounds of
the alloca.
First, we need to kill the *other* side of the memcpy if it was added to
this alloca. Otherwise we'll factor it into our slicing and try to
rewrite it even though we know for a fact that it is dead. This is made
more tricky because we can visit the sides in either order. So we have
to both kill the other side and skip instructions marked as dead. The
latter really should be goodness in every case, but here is a matter of
correctness.
Second, we need to actually remove the *uses* of the alloca by the
memcpy when queuing it for later deletion. Otherwise it may still be
using the alloca when we go to promote it (if the rewrite re-uses the
existing alloca instruction). Do this by factoring out the
use-clobbering used when for nixing a Phi argument and re-using it
across the operands of a to-be-deleted instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199590
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Saleem Abdulrasool [Sun, 19 Jan 2014 08:25:41 +0000 (08:25 +0000)]
ARM ELF: ensure that the tag types are corrected
Ensure that the tag types are reflected on a replacement. This is particularly
important for the compatibility tag which has multiple representations where the
last definition wins.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199577
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Saleem Abdulrasool [Sun, 19 Jan 2014 08:25:35 +0000 (08:25 +0000)]
ARM: update build attributes for ABI r2.09
Update names for the names as per the current ABI errata. Mark deprecated tags
as such.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199576
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Saleem Abdulrasool [Sun, 19 Jan 2014 08:25:27 +0000 (08:25 +0000)]
Move ARM build attributes into Support
This moves the ARM build attributes definitions and support routines into the
Support library. The support routines simply permit the conversion of the value
to and from a string representation.
The movement is prompted in order to permit access to the constants and string
representations from readobj in order to facilitate decoding of the attributes
section.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199575
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Saleem Abdulrasool [Sun, 19 Jan 2014 08:25:19 +0000 (08:25 +0000)]
ARM IAS: remove unnecessary special case
Tag_nodefaults is even and greater than 32 and thus does not need the special
check to fall into the correct category.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199574
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Arnold Schwaighofer [Sun, 19 Jan 2014 03:18:31 +0000 (03:18 +0000)]
LoopVectorizer: A reduction that has multiple uses of the reduction value is not
a reduction.
Really. Under certain circumstances (the use list of an instruction has to be
set up right - hence the extra pass in the test case) we would not recognize
when a value in a potential reduction cycle was used multiple times by the
reduction cycle.
Fixes PR18526.
radar://
15851149
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199570
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Chandler Carruth [Sun, 19 Jan 2014 02:22:18 +0000 (02:22 +0000)]
[PM] Make the verifier work independently of any pass manager.
This makes the 'verifyFunction' and 'verifyModule' functions totally
independent operations on the LLVM IR. It also cleans up their API a bit
by lifting the abort behavior into their clients and just using an
optional raw_ostream parameter to control printing.
The implementation of the verifier is now just an InstVisitor with no
multiple inheritance. It also is significantly more const-correct, and
hides the const violations internally. The two layers that force us to
break const correctness are building a DomTree and dispatching through
the InstVisitor.
A new VerifierPass is used to implement the legacy pass manager
interface in terms of the other pieces.
The error messages produced may be slightly different now, and we may
have slightly different short circuiting behavior with different usage
models of the verifier, but generally everything works equivalently and
this unblocks wiring the verifier up to the new pass manager.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199569
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Chandler Carruth [Sun, 19 Jan 2014 02:13:50 +0000 (02:13 +0000)]
Add a const lookup routine to get a BlockAddress constant if there is
one, but not create one. This is useful in the verifier when we want to
query the constant if it exists but not create one. To be used in an
upcoming commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199568
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Eli Bendersky [Sat, 18 Jan 2014 22:54:33 +0000 (22:54 +0000)]
Support AddrSpaceCast in ConstantExpr::getAsInstruction.
It's handled similarly to the other casts. CastInst::Create already knows how
to handle it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199565
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Nick Lewycky [Sat, 18 Jan 2014 22:47:12 +0000 (22:47 +0000)]
Don't refuse to transform constexpr(call(arg, ...)) to call(constexpr(arg), ...)) just because the function has multiple return values even if their return types are the same. Patch by Eduard Burtescu!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199564
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Benjamin Kramer [Sat, 18 Jan 2014 19:03:19 +0000 (19:03 +0000)]
ARM: Let the assembler reject v5 instructions in v4 mode.
PR18524.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199559
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NAKAMURA Takumi [Sat, 18 Jan 2014 19:01:08 +0000 (19:01 +0000)]
[CMake] Add llvm-tblgen to dependencies of check-llvm.
llvm-tblgen is not built when external LLVM_TABLEGEN is specified.
Even then, llvm-tblgen should be built for testing tblgen itself.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199558
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Benjamin Kramer [Sat, 18 Jan 2014 16:43:14 +0000 (16:43 +0000)]
InstCombine: Make the (fmul X, -1.0) -> (fsub -0.0, X) transform handle vectors too.
PR18532.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199553
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Benjamin Kramer [Sat, 18 Jan 2014 16:43:06 +0000 (16:43 +0000)]
Upgrade ConstantFP's negative zero and infinity getters to handle vector types.
Will be used soon.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199552
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Adrian Prantl [Sat, 18 Jan 2014 02:12:10 +0000 (02:12 +0000)]
typo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199537
91177308-0d34-0410-b5e6-
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Adrian Prantl [Sat, 18 Jan 2014 02:12:00 +0000 (02:12 +0000)]
Debug info (LTO): Move the creation of accessibility flags to
getOrCreateSubprogramDIE to avoid attributes being added twice when DIEs
are merged.
rdar://problem/
15842330.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199536
91177308-0d34-0410-b5e6-
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Owen Anderson [Sat, 18 Jan 2014 00:48:14 +0000 (00:48 +0000)]
Fix more instances of dropped fast math flags when optimizing FADD instructions. All found by inspection (aka grep).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199528
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Reid Kleckner [Fri, 17 Jan 2014 23:58:17 +0000 (23:58 +0000)]
Add an inalloca flag to allocas
Summary:
The only current use of this flag is to mark the alloca as dynamic, even
if its in the entry block. The stack adjustment for the alloca can
never be folded into the prologue because the call may clear it and it
has to be allocated at the top of the stack.
Reviewers: majnemer
CC: llvm-commits
Differential Revision: http://llvm-reviews.chandlerc.com/D2571
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199525
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Justin Bogner [Fri, 17 Jan 2014 22:39:45 +0000 (22:39 +0000)]
MC: Add some missing include guards
Patch by Daniel Reynaud!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199523
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Juergen Ributzka [Fri, 17 Jan 2014 22:24:35 +0000 (22:24 +0000)]
Update LangRef to emphasize the difference between "coldcc" and "preserve_mostcc".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199521
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Rui Ueyama [Fri, 17 Jan 2014 22:11:27 +0000 (22:11 +0000)]
80-column.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199519
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Rui Ueyama [Fri, 17 Jan 2014 22:02:24 +0000 (22:02 +0000)]
llvm-objdump/COFF: Print ordinal base number.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199518
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Juergen Ributzka [Fri, 17 Jan 2014 19:47:03 +0000 (19:47 +0000)]
Add two new calling conventions for runtime calls
This patch adds two new target-independent calling conventions for runtime
calls - PreserveMost and PreserveAll.
The target-specific implementation for X86-64 is defined as following:
- Arguments are passed as for the default C calling convention
- The same applies for the return value(s)
- PreserveMost preserves all GPRs - except R11
- PreserveAll preserves all GPRs and all XMMs/YMMs - except R11
Reviewed by Lang and Philip
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199508
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Daniel Sanders [Fri, 17 Jan 2014 15:40:05 +0000 (15:40 +0000)]
[mips][msa] Correct pattern for LSA
Summary:
$rs and $rt were the wrong way round in the .td and the testcase wasn't
strict enough to detect the mistake.
Reviewers: matheusalmeida
Reviewed By: matheusalmeida
Differential Revision: http://llvm-reviews.chandlerc.com/D2554
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199498
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Daniel Sanders [Fri, 17 Jan 2014 14:48:06 +0000 (14:48 +0000)]
[mips] Split IIIdiv int II_DIV, II_DIVU, II_DDIV, and II_DDIVU
No functional change since the InstrItinData's were duplicated
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199497
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Daniel Sanders [Fri, 17 Jan 2014 14:32:41 +0000 (14:32 +0000)]
[mips][sched] Split IIImul and IIImult into subclasses.
IIImul -> II_MUL
IIImult -> II_MULT, II_MULTU, II_MADD, II_MADDU, II_MSUB, II_MSUBU, II_DMULT, II_DMULTU
No functional change since the InstrItinData's have been duplicated.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199495
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Daniel Sanders [Fri, 17 Jan 2014 14:17:34 +0000 (14:17 +0000)]
[mips][sched] Split IIHiLo into II_MFHI_MFLO and II_MTHI_MTLO
No functional change since the InstrItinData's have been duplicated.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199493
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Renato Golin [Fri, 17 Jan 2014 13:53:08 +0000 (13:53 +0000)]
Add MLA alias for ARMv4 support.
Fix MLA defs to use register class GPRnopc.
Add encoding tests for multiply instructions.
(Alias for MUL/SMLAL/UMLAL added by r199026.)
Patch by Zhaoshi.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199491
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Chandler Carruth [Fri, 17 Jan 2014 11:09:34 +0000 (11:09 +0000)]
[PM] [cleanup] Rename some of the Verifier's members, re-arrange them,
and tweak comments prior to more invasive surgery. Also clean up some
other non-doxygen comments, and run clang-format over the parts that are
going to change dramatically in subsequent commits so that those don't
get cluttered with formatting changes.
No functionality changed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199489
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Kostya Serebryany [Fri, 17 Jan 2014 11:00:30 +0000 (11:00 +0000)]
[asan] extend asan-coverage (still experimental).
- add a mode for collecting per-block coverage (-asan-coverage=2).
So far the implementation is naive (all blocks are instrumented),
the performance overhead on top of asan could be as high as 30%.
- Make sure the one-time calls to __sanitizer_cov are moved to function buttom,
which in turn required to copy the original debug info into the call insn.
Here is the performance data on SPEC 2006
(train data, comparing asan with asan-coverage={0,1,2}):
asan+cov0 asan+cov1 diff 0-1 asan+cov2 diff 0-2 diff 1-2
400.perlbench, 65.60, 65.80, 1.00, 76.20, 1.16, 1.16
401.bzip2, 65.10, 65.50, 1.01, 75.90, 1.17, 1.16
403.gcc, 1.64, 1.69, 1.03, 2.04, 1.24, 1.21
429.mcf, 21.90, 22.60, 1.03, 23.20, 1.06, 1.03
445.gobmk, 166.00, 169.00, 1.02, 205.00, 1.23, 1.21
456.hmmer, 88.30, 87.90, 1.00, 91.00, 1.03, 1.04
458.sjeng, 210.00, 222.00, 1.06, 258.00, 1.23, 1.16
462.libquantum, 1.73, 1.75, 1.01, 2.11, 1.22, 1.21
464.h264ref, 147.00, 152.00, 1.03, 160.00, 1.09, 1.05
471.omnetpp, 115.00, 116.00, 1.01, 140.00, 1.22, 1.21
473.astar, 133.00, 131.00, 0.98, 142.00, 1.07, 1.08
483.xalancbmk, 118.00, 120.00, 1.02, 154.00, 1.31, 1.28
433.milc, 19.80, 20.00, 1.01, 20.10, 1.02, 1.01
444.namd, 16.20, 16.20, 1.00, 17.60, 1.09, 1.09
447.dealII, 41.80, 42.20, 1.01, 43.50, 1.04, 1.03
450.soplex, 7.51, 7.82, 1.04, 8.25, 1.10, 1.05
453.povray, 14.00, 14.40, 1.03, 15.80, 1.13, 1.10
470.lbm, 33.30, 34.10, 1.02, 34.10, 1.02, 1.00
482.sphinx3, 12.40, 12.30, 0.99, 13.00, 1.05, 1.06
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199488
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Chandler Carruth [Fri, 17 Jan 2014 10:56:02 +0000 (10:56 +0000)]
[PM] Remove the preverifier and directly compute the DominatorTree for
the verifier after ensuring the CFG is at least usefully formed.
This fixes a number of problems:
1) The PreVerifier was missing the controls the Verifier provides over
*how* an invalid module is handled -- it just aborted the program!
Now it uses the same logic as the Verifier which is significantly
more library-friendly.
2) The DominatorTree used previously could have been cached and not
updated due to bugs in prior passes and we would silently use the
stale tree. This could cause dominance errors to not be as quickly
diagnosed.
3) We can now (in the next patch) pull the functionality of the verifier
apart from the pass infrastructure so that you can verify IR without
having any form of pass manager. This in turn frees the code to share
logic between old and new pass manager variants.
Along the way I fixed at least one annoying bug -- the state for
'Broken' wasn't being cleared from run to run causing all functions
visited after the first broken function to be marked as broken
regardless of whether *they* were a problem. Fortunately, I don't really
know much of a way to observe this peculiarity.
In case folks are worried about the runtime cost, its negligible.
I looked at running the entire regression test suite (which should be
a relatively good use of the verifier) before and after but was unable
to even measure the time spent on the verifier and there was no
regresion from before to after. I checked both with debug builds and
optimized builds.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199487
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Kevin Qin [Fri, 17 Jan 2014 09:54:30 +0000 (09:54 +0000)]
[AArch64 NEON] Expand vector for UDIV/SDIV/UREM/SREM/FREM as neon doesn't support these operations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199485
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Chandler Carruth [Fri, 17 Jan 2014 09:47:55 +0000 (09:47 +0000)]
Add the test for libstdc++ versions newer than 4.6 so we don't
accidentally pick that up while using Clang and run into subtle bugs
down the road related to C++11 features not fully implemented in that
version of the standard library.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199484
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Craig Topper [Fri, 17 Jan 2014 08:16:57 +0000 (08:16 +0000)]
Switch a few instructions to use RI instead I so they don't require REX_W to be explicitly specified.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199479
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Craig Topper [Fri, 17 Jan 2014 08:01:20 +0000 (08:01 +0000)]
Add OpSize16 flags to 32-bit CRC32 instructions so they can be encoded correctly in 16-bit mode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199478
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Craig Topper [Fri, 17 Jan 2014 07:44:10 +0000 (07:44 +0000)]
Teach x86 asm parser to handle 'opaque ptr' in Intel syntax.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199477
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Craig Topper [Fri, 17 Jan 2014 07:37:39 +0000 (07:37 +0000)]
Teach X86 asm parser to understand 'ZMMWORD PTR' in Intel syntax.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199476
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Craig Topper [Fri, 17 Jan 2014 07:25:39 +0000 (07:25 +0000)]
Fix intel syntax for 64-bit version of FXSAVE/FXRSTOR to use '64' suffix instead of 'q'
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199474
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Craig Topper [Fri, 17 Jan 2014 07:11:45 +0000 (07:11 +0000)]
VEX_PREFIX_66 doesn't need to set the hasOpSize flag since VEX instructions don't use the size fields it controls.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199470
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Craig Topper [Fri, 17 Jan 2014 06:42:38 +0000 (06:42 +0000)]
Replace duplicated code with a existing helper function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199468
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Hao Liu [Fri, 17 Jan 2014 06:23:30 +0000 (06:23 +0000)]
[AArch64]Fix the problem can't select f16_to_f32 and f32_to_f16.
Also add copy support for FPR16.
Also add a missing test case file belongs to commit r197361.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199463
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Kevin Qin [Fri, 17 Jan 2014 05:52:35 +0000 (05:52 +0000)]
[AArch64 NEON] Custom lower conversion between vector integer and vector floating point if element bit-width doesn't match.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199462
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Hao Liu [Fri, 17 Jan 2014 05:44:46 +0000 (05:44 +0000)]
[AArch64]Fix the problem can't select concat_vectors of two v1i32 types.
Also fix the problem can't select scalar_to_vector from f32 to v2f32/v4f32.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199461
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Bob Wilson [Fri, 17 Jan 2014 00:40:39 +0000 (00:40 +0000)]
Fix bad variable syntax in r199413
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199447
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Rafael Espindola [Thu, 16 Jan 2014 23:37:23 +0000 (23:37 +0000)]
Use LLVM_EXPLICIT instead of a function pointer as bool.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199437
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Reid Kleckner [Thu, 16 Jan 2014 22:59:24 +0000 (22:59 +0000)]
Change inalloca rules to make it only apply to the last parameter
This makes things a lot easier, because we can now talk about the
"argument allocation", which allocates all the memory for the call in
one shot.
The only functional change is to the verifier for a feature that hasn't
shipped yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199434
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Quentin Colombet [Thu, 16 Jan 2014 21:44:34 +0000 (21:44 +0000)]
[opt][PassInfo] Allow opt to run passes that need target machine.
When registering a pass, a pass can now specify a second construct that takes as
argument a pointer to TargetMachine.
The PassInfo class has been updated to reflect that possibility.
If such a constructor exists opt will use it instead of the default constructor
when instantiating the pass.
Since such IR passes are supposed to be rare, no specific support has been
added to this commit to allow an easy registration of such a pass.
In other words, for such pass, the initialization function has to be
hand-written (see CodeGenPrepare for instance).
Now, codegenprepare can be tested using opt:
opt -codegenprepare -mtriple=mytriple input.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199430
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Duncan P. N. Exon Smith [Thu, 16 Jan 2014 21:37:17 +0000 (21:37 +0000)]
LTO: document LTO_API_VERSION for each API
Adding a doxygen comment for each bit of API to indicate at which
LTO_API_VERSION each was available, manually gleaned from successive
git-blames. A few notes:
- LTO_API_VERSION was set to 3 at its introduction.
- I've indicated all the API introduced before LTO_API_VERSION was
around as available "prior to LTO_API_VERSION=3".
- A number of API changes neglected to bump LTO_API_VERSION. These I've
indicated as available at the *next* bump of LTO_API_VERSION.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199429
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Owen Anderson [Thu, 16 Jan 2014 21:26:02 +0000 (21:26 +0000)]
Fix two cases where we could lose fast math flags when optimizing FADD expressions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199427
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Owen Anderson [Thu, 16 Jan 2014 21:07:52 +0000 (21:07 +0000)]
Fix an instance where we would drop fast math flags when performing an fdiv to reciprocal multiply transformation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199425
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Owen Anderson [Thu, 16 Jan 2014 20:59:41 +0000 (20:59 +0000)]
Fix a bug in InstCombine where we failed to preserve fast math flags when optimizing an FMUL expression.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199424
91177308-0d34-0410-b5e6-
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Rui Ueyama [Thu, 16 Jan 2014 20:57:55 +0000 (20:57 +0000)]
Fix style issues.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199423
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Rui Ueyama [Thu, 16 Jan 2014 20:50:34 +0000 (20:50 +0000)]
llvm-objdump/COFF: Print DLL name in the export table header.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199422
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Owen Anderson [Thu, 16 Jan 2014 20:36:42 +0000 (20:36 +0000)]
Teach InstCombine that (fmul X, -1.0) can be simplified to (fneg X), which LLVM expresses as (fsub -0.0, X).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199420
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Rui Ueyama [Thu, 16 Jan 2014 20:30:36 +0000 (20:30 +0000)]
Use static instead of anonymous namespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199419
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Rui Ueyama [Thu, 16 Jan 2014 20:22:55 +0000 (20:22 +0000)]
Reduce nesting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199418
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Rui Ueyama [Thu, 16 Jan 2014 20:11:48 +0000 (20:11 +0000)]
Use the current local variable naming style.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199417
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Bob Wilson [Thu, 16 Jan 2014 19:35:01 +0000 (19:35 +0000)]
Pass the --enable-libcpp configure option for cross builds, too.
<rdar://problem/
15831288>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199413
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Kevin Enderby [Thu, 16 Jan 2014 18:43:56 +0000 (18:43 +0000)]
Tweak the MCExternalSymbolizer to print references to C string literals
with raw_ostream's write_escaped() method.
For example darwin's otool(1) program that uses the llvm
disassembler now produces disassembly like this:
leaq 0x7b(%rip), %rdi ## literal pool for: "%f\ntoto\n"
and not print the new lines which messes up the output.
rdar://
15145300
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199407
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Ed Maste [Thu, 16 Jan 2014 17:25:12 +0000 (17:25 +0000)]
llvm-symbolizer: make mangled name heuristic apply to all symbols
PR: http://llvm.org/pr18431
Review: http://llvm-reviews.chandlerc.com/D2552
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199404
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Daniel Sanders [Thu, 16 Jan 2014 17:23:08 +0000 (17:23 +0000)]
[mips][sched] Removed IIXfer. No instructions use it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199403
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