oota-llvm.git
8 years agoAdd and use a helper elements() to StructType. NFC.
Rafael Espindola [Fri, 21 Nov 2014 18:53:05 +0000 (18:53 +0000)]
Add and use a helper elements() to StructType. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222553 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAllow multiple -debug-only args
Matthias Braun [Fri, 21 Nov 2014 18:06:09 +0000 (18:06 +0000)]
Allow multiple -debug-only args

Debug output is shown if any of the -debug-only arguments match.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222547 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoLess space; NFC
Sanjay Patel [Fri, 21 Nov 2014 18:05:59 +0000 (18:05 +0000)]
Less space; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222546 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoFix formatting. NFC.
Rafael Espindola [Fri, 21 Nov 2014 18:05:55 +0000 (18:05 +0000)]
Fix formatting. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222545 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAdd a feature flag for slow 32-byte unaligned memory accesses [x86].
Sanjay Patel [Fri, 21 Nov 2014 17:40:04 +0000 (17:40 +0000)]
Add a feature flag for slow 32-byte unaligned memory accesses [x86].

This patch adds a feature flag to avoid unaligned 32-byte load/store AVX codegen
for Sandy Bridge and Ivy Bridge. There is no functionality change intended for
those chips. Previously, the absence of AVX2 was being used as a proxy to detect
this feature. But that hindered codegen for AVX-enabled AMD chips such as btver2
that do not have the 32-byte unaligned access slowdown.

Performance measurements are included in PR21541 ( http://llvm.org/bugs/show_bug.cgi?id=21541 ).

Differential Revision: http://reviews.llvm.org/D6355

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222544 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRevert "Allow FDE references outside the +/-2GB range supported by PC relative offset...
Duncan P. N. Exon Smith [Fri, 21 Nov 2014 17:21:18 +0000 (17:21 +0000)]
Revert "Allow FDE references outside the +/-2GB range supported by PC relative offsets for code models other than small/medium. For JIT application, memory layout is less controlled and can result in truncations otherwise."

This reverts commit r222538.

It's causing test failures for CFI, at least on Darwin:

http://lab.llvm.org:8080/green/job/clang-stage1-cmake-RA-incremental/1189/
http://lab.llvm.org:8080/green/job/clang-stage1-configure-RA_check/1391/

Note that the previous incremental build was on r222537, and the CFI
tests weren't failing:
http://lab.llvm.org:8080/green/job/clang-stage1-cmake-RA-incremental/1188/

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222542 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[x86] Restructure the checking patterns for v16 and v32 avx2 vector
Chandler Carruth [Fri, 21 Nov 2014 14:53:03 +0000 (14:53 +0000)]
[x86] Restructure the checking patterns for v16 and v32 avx2 vector
shuffle lowering to allow much better blend matching.

Specifically, with the new structure the code seems clearer to me and we
correctly can hit the cases where merging two 128-bit lanes is a clear
win and can be shuffled cheaply afterward.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222539 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAllow FDE references outside the +/-2GB range supported by PC relative
Joerg Sonnenberger [Fri, 21 Nov 2014 14:42:43 +0000 (14:42 +0000)]
Allow FDE references outside the +/-2GB range supported by PC relative
offsets for code models other than small/medium. For JIT application,
memory layout is less controlled and can result in truncations
otherwise.

Patch from Akos Kiss.

Differential Revision: http://reviews.llvm.org/D6079

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222538 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[x86] Make the previous logic significantly less conservative and get
Chandler Carruth [Fri, 21 Nov 2014 14:33:24 +0000 (14:33 +0000)]
[x86] Make the previous logic significantly less conservative and get
a bunch more improvements.

Non-lane-crossing is fine, the key is that lane merging only makes sense
for single-input shuffles. Not sure why I got so turned around here. The
code all works, I was just using the wrong model for it.

This only updates v4 and v8 lowering. The v16 and v32 lowering requires
restructuring the entire check sequence.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222537 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[DAG] Teach how to turn a build_vector into a shuffle if some of the operands are...
Andrea Di Biagio [Fri, 21 Nov 2014 14:32:06 +0000 (14:32 +0000)]
[DAG] Teach how to turn a build_vector into a shuffle if some of the operands are zero.

Before this patch, the DAGCombiner only tried to convert build_vector dag nodes
into shuffles if all operands were either extract_vector_elt or undef.

This patch improves that logic and teaches the DAGCombiner how to deal with
build_vector dag nodes where one or more operands are zero. A build_vector
dag node with some zero operands is turned into a shuffle only if the resulting
shuffle mask is legal for the target.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222536 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[x86] Teach the x86 vector shuffle lowering to detect mergable 128-bit
Chandler Carruth [Fri, 21 Nov 2014 13:56:05 +0000 (13:56 +0000)]
[x86] Teach the x86 vector shuffle lowering to detect mergable 128-bit
lanes.

By special casing these we can often either reduce the total number of
shuffles significantly or reduce the number of (high latency on Haswell)
AVX2 shuffles that potentially cross 128-bit lanes. Even when these
don't actually cross lanes, they have much higher latency to support
that. Doing two of them and a blend is worse than doing a single insert
across the 128-bit lanes to blend and then doing a single interleaved
shuffle.

While this seems like a narrow case, it kept cropping up on me and the
difference is *huge* as you can see in many of the test cases. I first
hit this trying to perfectly fix the interleaving shuffle patterns used
by Halide for AVX2.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222533 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[x86] Remove more windows line endings that slipped into this file...
Chandler Carruth [Fri, 21 Nov 2014 12:33:46 +0000 (12:33 +0000)]
[x86] Remove more windows line endings that slipped into this file...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222528 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[x86] Add a bunch of test cases to 256-bit shuffles that exercise
Chandler Carruth [Fri, 21 Nov 2014 12:17:50 +0000 (12:17 +0000)]
[x86] Add a bunch of test cases to 256-bit shuffles that exercise
merging 128-bit subvectors and also shuffling all the elements of those
subvectors. Currently we generate pretty bad code for many of these, but
I'm testing a patch that should dramatically improve this in addition to
making the shuffle lowering robust to other changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222525 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[DAG] Refactor the shuffle combining logic in DAGCombiner. NFC.
Andrea Di Biagio [Fri, 21 Nov 2014 11:33:07 +0000 (11:33 +0000)]
[DAG] Refactor the shuffle combining logic in DAGCombiner. NFC.

This patch simplifies the logic that combines a pair of shuffle nodes into
a single shuffle if there is a legal mask. Also added comments to better
describe the algorithm. No functional change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222522 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[X86] For Silvermont CPU use 16-bit division instead of 64-bit for small positive...
Alexey Volkov [Fri, 21 Nov 2014 11:19:34 +0000 (11:19 +0000)]
[X86] For Silvermont CPU use 16-bit division instead of 64-bit for small positive numbers

Differential Revision: http://reviews.llvm.org/D5938

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222521 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[asan] Add new hidden compile-time flag asan-instrument-allocas to sanitize variable...
Yury Gribov [Fri, 21 Nov 2014 10:29:50 +0000 (10:29 +0000)]
[asan] Add new hidden compile-time flag asan-instrument-allocas to sanitize variable-sized dynamic allocas. Patch by Max Ostapenko.

Reviewed at http://reviews.llvm.org/D6055

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222519 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAdd LLVMScalarOpts to LLVMPowerPCCodeGen.
NAKAMURA Takumi [Fri, 21 Nov 2014 09:14:45 +0000 (09:14 +0000)]
Add LLVMScalarOpts to LLVMPowerPCCodeGen.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222516 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoDAGCombiner: Allow the DAGCombiner to combine multiple FDIVs with the same divisor...
Hao Liu [Fri, 21 Nov 2014 06:39:58 +0000 (06:39 +0000)]
DAGCombiner: Allow the DAGCombiner to combine multiple FDIVs with the same divisor info FMULs by the reciprocal.
E.g., ( a / D; b / D ) -> ( recip = 1.0 / D; a * recip; b * recip)

A hook is added to allow the target to control whether it needs to do such combine.

Reviewed in http://reviews.llvm.org/D6334

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222510 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRemove a bunch of unnecessary typecasts to 'const TargetRegisterClass *'
Craig Topper [Fri, 21 Nov 2014 05:58:21 +0000 (05:58 +0000)]
Remove a bunch of unnecessary typecasts to 'const TargetRegisterClass *'

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222509 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAdd extra new line and remove some trailing whitespace from tablegen RegisterInfo...
Craig Topper [Fri, 21 Nov 2014 05:58:14 +0000 (05:58 +0000)]
Add extra new line and remove some trailing whitespace from tablegen RegisterInfo output file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222508 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoFix a silly bug in StreamingMemoryObject.cpp.
Rafael Espindola [Fri, 21 Nov 2014 05:15:41 +0000 (05:15 +0000)]
Fix a silly bug in StreamingMemoryObject.cpp.

The logic for detecting EOF was wrong and would fail if we ever requested
more than 16k past the last read position.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222505 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[PPC] Use SeparateConstOffsetFromGEP
Hal Finkel [Fri, 21 Nov 2014 04:35:51 +0000 (04:35 +0000)]
[PPC] Use SeparateConstOffsetFromGEP

This mirrors r222331, which enabled SeparateConstOffsetFromGEP on AArch64, in
the PowerPC backend. Yields, on a POWER7 machine, a 30% speedup on
SingleSource/Benchmarks/Shootout/nestedloop (this might just be from LICM,
there is a store moved out of the inner loop) and a potential speedup on
MultiSource/Benchmarks/mediabench/mpeg2/mpeg2dec/mpeg2decode. Regardless, it
makes some code look cleaner, and synchronizing the backends in this regard
seems like a generally good thing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222504 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAdd accessor marcos to ConstantPlaceHolder, similar to those in the base class.
Richard Trieu [Fri, 21 Nov 2014 02:42:08 +0000 (02:42 +0000)]
Add accessor marcos to ConstantPlaceHolder, similar to those in the base class.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222502 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoThis Reassociate change unintentionally slipped in r222499
David Majnemer [Fri, 21 Nov 2014 02:37:38 +0000 (02:37 +0000)]
This Reassociate change unintentionally slipped in r222499

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222500 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoSROA: The alloca type isn't a candidate promotion type for vectors
David Majnemer [Fri, 21 Nov 2014 02:34:55 +0000 (02:34 +0000)]
SROA: The alloca type isn't a candidate promotion type for vectors

The alloca's type is irrelevant, only those types which are used in a
load or store of the exact size of the slice should be considered.

This manifested as an assertion failure when we compared the various
types: we had a size mismatch.

This fixes PR21480.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222499 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoClarify the description of the noalias attribute
Hal Finkel [Fri, 21 Nov 2014 02:22:46 +0000 (02:22 +0000)]
Clarify the description of the noalias attribute

The previous description of the noalias attribute did not accurately specify
the implemented semantics, and the terminology used differed unnecessarily
from that used by the C specification to define the semantics of restrict. For
the argument attribute, the semantics can be precisely specified in terms of
objects accessed through pointers based on the arguments, and this is now what
is done.

Saying that the semantics are 'slightly weaker' than that provided by C99
restrict is not really useful without further elaboration, so that has been
removed from the sentence.

noalias on a return value is really used to mean that the function is
malloc-like (and, in fact, we use this attribute to represent
__attribute__((malloc)) in Clang), and this is a stronger guarantee than that
provided by restrict (because it is a property of the pointed-to memory region,
not just a guarantee on object access). Clarifying this is relevant to fixing
(and was motivated by the discussion on) PR21556.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222497 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[MCJIT] Remove JITEventListener::NotifyFreeingMachineCode. This method is dead
Lang Hames [Fri, 21 Nov 2014 01:57:09 +0000 (01:57 +0000)]
[MCJIT] Remove JITEventListener::NotifyFreeingMachineCode. This method is dead
now that the old JIT has been removed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222494 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAdd curly braces to workaround an MSVC bug.
Zachary Turner [Fri, 21 Nov 2014 01:19:09 +0000 (01:19 +0000)]
Add curly braces to workaround an MSVC bug.

MSVC can't parse this pattern for range-based for loops.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222491 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[X86] Do not custom lower UINT_TO_FP when the target type does not
Quentin Colombet [Fri, 21 Nov 2014 00:47:19 +0000 (00:47 +0000)]
[X86] Do not custom lower UINT_TO_FP when the target type does not
match the custom lowering.

<rdar://problem/19026326>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222489 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoVerifier: Check that all instructions have their parent pointers set up
Adrian Prantl [Fri, 21 Nov 2014 00:39:43 +0000 (00:39 +0000)]
Verifier: Check that all instructions have their parent pointers set up
correctly. This helps with catching problems caused by IRBuilder abuse
such as the one fixed in CFE r222487.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222488 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoFix more instances of -Wsentinel on Windows with s/NULL/nullptr/
Reid Kleckner [Thu, 20 Nov 2014 23:51:47 +0000 (23:51 +0000)]
Fix more instances of -Wsentinel on Windows with s/NULL/nullptr/

Follow up to r221940, where I must not have caught em all. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222481 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAdd out of line virtual destructors to all LLVMTargetMachine subclasses
Reid Kleckner [Thu, 20 Nov 2014 23:37:18 +0000 (23:37 +0000)]
Add out of line virtual destructors to all LLVMTargetMachine subclasses

These recently all grew a unique_ptr<TargetLoweringObjectFile> member in
r221878.  When anyone calls a virtual method of a class, clang-cl
requires all virtual methods to be semantically valid. This includes the
implicit virtual destructor, which triggers instantiation of the
unique_ptr destructor, which fails because the type being deleted is
incomplete.

This is just part of the ongoing saga of PR20337, which is affecting
Blink as well. Because the MSVC ABI doesn't have key functions, we end
up referencing the vtable and implicit destructor on any virtual call
through a class. We don't actually end up emitting the dtor, so it'd be
good if we could avoid this unneeded type completion work.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222480 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoUpdate Makefile following directory removal in r222466
Mehdi Amini [Thu, 20 Nov 2014 22:48:24 +0000 (22:48 +0000)]
Update Makefile following directory removal in r222466

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222475 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoSimplifyCFG: Refactor GatherConstantCompares() result in a struct
Mehdi Amini [Thu, 20 Nov 2014 22:40:25 +0000 (22:40 +0000)]
SimplifyCFG: Refactor GatherConstantCompares() result in a struct

Code seems cleaner and easier to understand this way

This is basically r222416, after fixes for MSVC lack of standard
support, and a few cleaning (got rid of a warning).
Thanks Nakamura Takumi and Nico Weber for the MSVC fixes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222472 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[Hexagon] [NFC] Deleting empty directory.
Colin LeMahieu [Thu, 20 Nov 2014 22:20:40 +0000 (22:20 +0000)]
[Hexagon] [NFC] Deleting empty directory.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222466 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[Hexagon] [NFC] Merging InstPrinter directory in to MCTargetDesc since they have...
Colin LeMahieu [Thu, 20 Nov 2014 21:56:35 +0000 (21:56 +0000)]
[Hexagon] [NFC] Merging InstPrinter directory in to MCTargetDesc since they have a circular dependency.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222458 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[MCJIT] Remove JITEventListener::NotifyFunctionEmitted - this method is dead
Lang Hames [Thu, 20 Nov 2014 21:16:16 +0000 (21:16 +0000)]
[MCJIT] Remove JITEventListener::NotifyFunctionEmitted - this method is dead
now that the legacy JIT has been removed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222453 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoFix a trip-count overflow issue in LoopUnroll.
Michael Zolotukhin [Thu, 20 Nov 2014 20:19:55 +0000 (20:19 +0000)]
Fix a trip-count overflow issue in LoopUnroll.

Currently LoopUnroll generates a prologue loop before the main loop
body to execute first N%UnrollFactor iterations. Also, this loop is
used if trip-count can overflow - it's determined by a runtime check.

However, we've been mistakenly optimizing this loop to a linear code for
UnrollFactor = 2, not taking into account that it also serves as a safe
version of the loop if its trip-count overflows.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222451 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoCompilation test for PostOrderIterator.
Michael Ilseman [Thu, 20 Nov 2014 19:33:33 +0000 (19:33 +0000)]
Compilation test for PostOrderIterator.

If the template specialization for externally managed sets in
PostOrderIterator call too far out of sync with each other, this unit
test will fail to build. This is especially useful for developers who
may not build Clang (the only in-tree user) every time.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222447 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoUpdate template specialization to reflect API changes.
Michael Ilseman [Thu, 20 Nov 2014 19:33:30 +0000 (19:33 +0000)]
Update template specialization to reflect API changes.

po_iterator_storage's insertEdge was updated to reflect the API
changes from many of our insert methods in r222334, however the
template specialization for external storage was not updated. This
updates the specialization.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222446 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoX86: use the correct alloca symbol for Windows Itanium
Saleem Abdulrasool [Thu, 20 Nov 2014 18:01:26 +0000 (18:01 +0000)]
X86: use the correct alloca symbol for Windows Itanium

Windows itanium targets the MSVCRT, and the stack probe symbol is provided by
MSVCRT.  This corrects the emission of stack probes on i686-windows-itanium.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222439 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoMake DWARFAcceleratorTable::dump() const.
Frederic Riss [Thu, 20 Nov 2014 16:21:11 +0000 (16:21 +0000)]
Make DWARFAcceleratorTable::dump() const.

As dump() methods  should be. To allow that, do not store the DWARFFormValue
objects used for the dump in the header data.

Per Alexey's suggestion!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222436 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAdd missing copyright headers.
Frederic Riss [Thu, 20 Nov 2014 16:21:06 +0000 (16:21 +0000)]
Add missing copyright headers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222435 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoDo not create a replaceable Variables MDNode for function forward decls.
Frederic Riss [Thu, 20 Nov 2014 15:52:34 +0000 (15:52 +0000)]
Do not create a replaceable Variables MDNode for function forward decls.

These fields would need to be explicitly deleted before we RAUW the temporary
node anyway (this was done in cfe commit r222373). Instead, do not create
these useless nodes in the first place.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222434 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoMCJIT tests passing on ARM after r222414 fixed the relocation
Renato Golin [Thu, 20 Nov 2014 13:32:16 +0000 (13:32 +0000)]
MCJIT tests passing on ARM after r222414 fixed the relocation

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222430 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRevert r222416, r222422, r222426: the former revision had problems and fixing them...
Timur Iskhodzhanov [Thu, 20 Nov 2014 12:36:43 +0000 (12:36 +0000)]
Revert r222416, r222422, r222426: the former revision had problems and fixing them introduced bugs

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222428 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoFix a typo
Timur Iskhodzhanov [Thu, 20 Nov 2014 11:48:58 +0000 (11:48 +0000)]
Fix a typo

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222426 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoSimplifyCFG.cpp: Tweak to let msc17 compliant.
NAKAMURA Takumi [Thu, 20 Nov 2014 08:59:02 +0000 (08:59 +0000)]
SimplifyCFG.cpp: Tweak to let msc17 compliant.

  - Use LLVM_DELETED_FUNCTION.
  - Don't use member initializers.
  - Don't use initializer list.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222422 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoSimplifyCFG: Refactor GatherConstantCompares() result in a struct
Mehdi Amini [Thu, 20 Nov 2014 06:51:02 +0000 (06:51 +0000)]
SimplifyCFG: Refactor GatherConstantCompares() result in a struct

Code seems cleaner and easier to understand this way

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222416 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[ELF] Prevent ARM ELF object writer from generating deprecated relocation code R_ARM_...
Jyoti Allur [Thu, 20 Nov 2014 05:58:11 +0000 (05:58 +0000)]
[ELF] Prevent ARM ELF object writer from generating deprecated relocation code R_ARM_PLT32

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222414 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAdd a test for r221870
David Majnemer [Thu, 20 Nov 2014 05:32:10 +0000 (05:32 +0000)]
Add a test for r221870

bad-relocs.obj.coff-i386 has a relocation whose symbol index is outside
the symbol table.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222413 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoFix a typo in a comment.
Craig Topper [Thu, 20 Nov 2014 05:22:37 +0000 (05:22 +0000)]
Fix a typo in a comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222412 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRemove unnecessary extra spaces from tablegen register info output.
Craig Topper [Thu, 20 Nov 2014 05:22:35 +0000 (05:22 +0000)]
Remove unnecessary extra spaces from tablegen register info output.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222411 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoUse array_lengthof instead of sizeof(array)/sizeof(element) in a tablegen output.
Craig Topper [Thu, 20 Nov 2014 05:22:32 +0000 (05:22 +0000)]
Use array_lengthof instead of sizeof(array)/sizeof(element) in a tablegen output.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222410 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRemove support for undocumented SpecialCaseList entries.
Alexey Samsonov [Thu, 20 Nov 2014 01:27:19 +0000 (01:27 +0000)]
Remove support for undocumented SpecialCaseList entries.

"global-init", "global-init-src" and "global-init-type" were originally
used to blacklist entities in ASan init-order checker. However, they
were never documented, and later were replaced by "=init" category.

Old blacklist entries should be converted as follows:
  * global-init:foo -> global:foo=init
  * global-init-src:bar -> src:bar=init
  * global-init-type:baz -> type:baz=init

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222401 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[Hexagon] Adding A2_xor instruction with IR selection pattern and test.
Colin LeMahieu [Wed, 19 Nov 2014 23:22:23 +0000 (23:22 +0000)]
[Hexagon] Adding A2_xor instruction with IR selection pattern and test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222399 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRevert "[Reassociate] As the expression tree is rewritten make sure the operands...
Chad Rosier [Wed, 19 Nov 2014 23:21:20 +0000 (23:21 +0000)]
Revert "[Reassociate] As the expression tree is rewritten make sure the operands are"

This reverts commit r222142.  This is causing/exposing an execution-time regression
in spec2006/gcc and coremark on AArch64/A57/Ofast.

Conflicts:

test/Transforms/Reassociate/optional-flags.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222398 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[Hexagon] Adding A2_or instruction with IR selection pattern and test.
Colin LeMahieu [Wed, 19 Nov 2014 22:58:04 +0000 (22:58 +0000)]
[Hexagon] Adding A2_or instruction with IR selection pattern and test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222396 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agogold-plugin: Fix typo in error message
Duncan P. N. Exon Smith [Wed, 19 Nov 2014 22:39:21 +0000 (22:39 +0000)]
gold-plugin: Fix typo in error message

Spotted while reading code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222395 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[CMake] Update GetSVN.cmake to use LLVM version control helper scripts.
Jordan Rose [Wed, 19 Nov 2014 22:03:21 +0000 (22:03 +0000)]
[CMake] Update GetSVN.cmake to use LLVM version control helper scripts.

This allows the logic to work with Git, and also uses the variable names
to match what Clang is actually looking for.

This is a re-application of r190556 and r190808. This changes the interface
of GetSVN.cmake. Clang change to follow.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222391 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoADT: windows itanium targets msvcrt.dll
Saleem Abdulrasool [Wed, 19 Nov 2014 21:55:31 +0000 (21:55 +0000)]
ADT: windows itanium targets msvcrt.dll

Update the isOSMSVCRT to correctly identify that windows-itanium uses
msvcrt.dll.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222389 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoTry to fix MSVS build after r222384. No intended behavior change.
Nico Weber [Wed, 19 Nov 2014 21:16:11 +0000 (21:16 +0000)]
Try to fix MSVS build after r222384. No intended behavior change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222386 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoFix Use-of-uninitialized-value for adrp_addr and adrp_inst in MachODump.cpp
Kevin Enderby [Wed, 19 Nov 2014 20:20:16 +0000 (20:20 +0000)]
Fix Use-of-uninitialized-value for adrp_addr and adrp_inst in MachODump.cpp

Fixes PR21607

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222385 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoSimplifyCFG: turn recursive GatherConstantCompares into iterative
Mehdi Amini [Wed, 19 Nov 2014 20:09:11 +0000 (20:09 +0000)]
SimplifyCFG: turn recursive GatherConstantCompares into iterative

A long sequence of || or && could lead to a stack explosion.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222384 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRegisterCoalescer: Improve debug messages
Matthias Braun [Wed, 19 Nov 2014 19:46:17 +0000 (19:46 +0000)]
RegisterCoalescer: Improve debug messages

- Show "Considering..." message after flipping so you actually see the final
  destination vreg as destination.
- Add a message on final join, so you can grep for "Success" messages to obtain
  a list of which register got merged with which.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222382 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAdd a print and verify pass after the RegisterCoalescer
Matthias Braun [Wed, 19 Nov 2014 19:46:15 +0000 (19:46 +0000)]
Add a print and verify pass after the RegisterCoalescer

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222381 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoMachineVerifier: Report register for bad liveranges
Matthias Braun [Wed, 19 Nov 2014 19:46:13 +0000 (19:46 +0000)]
MachineVerifier: Report register for bad liveranges

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222380 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoIntroduce register dump helper
Matthias Braun [Wed, 19 Nov 2014 19:46:11 +0000 (19:46 +0000)]
Introduce register dump helper

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222379 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAliasSet: Simplify mergeSetIn
David Majnemer [Wed, 19 Nov 2014 19:36:18 +0000 (19:36 +0000)]
AliasSet: Simplify mergeSetIn

No functional change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222376 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[X86] Improved lowering of v4x32 build_vector dag nodes.
Andrea Di Biagio [Wed, 19 Nov 2014 19:34:29 +0000 (19:34 +0000)]
[X86] Improved lowering of v4x32 build_vector dag nodes.

This patch improves the lowering of v4f32 and v4i32 build_vector dag nodes
that are known to have at least two non-zero elements.

With this patch, a build_vector that performs a blend with zero is
converted into a shuffle. This is done to let the shuffle legalizer expand
the dag node in a optimal way. For example, if we know that a build_vector
performs a blend with zero, we can try to lower it as a movq/blend instead of
always selecting an insertps.

This patch also improves the logic that lowers a build_vector into a insertps
with zero masking. See for example the extra test cases added to test sse41.ll.

Differential Revision: http://reviews.llvm.org/D6311

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222375 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[ADT] Fix PR20728 - Incorrect APFloat::fusedMultiplyAdd results for x86_fp80.
Lang Hames [Wed, 19 Nov 2014 19:15:41 +0000 (19:15 +0000)]
[ADT] Fix PR20728 - Incorrect APFloat::fusedMultiplyAdd results for x86_fp80.

As detailed at http://llvm.org/PR20728, due to an internal overflow in
APFloat::multiplySignificand the APFloat::fusedMultiplyAdd method can return
incorrect results for x87DoubleExtended (x86_fp80) values. This commonly
manifests as incorrect constant folding of libm fmal calls on x86. E.g.

fmal(1.0L, 1.0L, 3.0L) == 0.0L      (should be 4.0L)

This patch fixes PR20728 by adding an extra bit to the significand for
intermediate results of APFloat::multiplySignificand, avoiding the overflow.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222374 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[llvm-readobj][NFC]
Colin LeMahieu [Wed, 19 Nov 2014 17:10:39 +0000 (17:10 +0000)]
[llvm-readobj][NFC]
Appeasing mingw without C++11 std::to_string

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222369 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoR600/SI: Make SIInstrInfo::isOperandLegal() more strict
Tom Stellard [Wed, 19 Nov 2014 16:58:49 +0000 (16:58 +0000)]
R600/SI: Make SIInstrInfo::isOperandLegal() more strict

A register operand that has a common sub-class with its instruction's
defined register class is not always legal.  For example,
SReg_32 and M0Reg both have a common sub-class, but we can't
use an SReg_32 in instructions that expect a M0Reg.

This prevents the llvm.SI.sendmsg.ll test from failing when the fold
operand pass is added.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222368 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[mips][micromips] Implement SWM32 and LWM32 instructions
Zoran Jovanovic [Wed, 19 Nov 2014 16:44:02 +0000 (16:44 +0000)]
[mips][micromips] Implement SWM32 and LWM32 instructions
Differential Revision: http://reviews.llvm.org/D5519

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222367 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoVectorize a reduction chain feeding into a 'return' statement.
Suyog Sarda [Wed, 19 Nov 2014 16:07:38 +0000 (16:07 +0000)]
Vectorize a reduction chain feeding into a 'return' statement.
e.x
return (a[0]+b[0]) + (a[1]+b[1])

Differential Revision: http://reviews.llvm.org/D6227

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222364 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[mips][microMIPS] Fix opcodes of MFHC1 and MTHC1 instructions.
Jozef Kolek [Wed, 19 Nov 2014 13:37:51 +0000 (13:37 +0000)]
[mips][microMIPS] Fix opcodes of MFHC1 and MTHC1 instructions.

Differential Revision: http://reviews.llvm.org/D6169

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222355 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoFix tail recursion elimination
Arnaud A. de Grandmaison [Wed, 19 Nov 2014 13:32:51 +0000 (13:32 +0000)]
Fix tail recursion elimination

When the BasicBlock containing the return instrution has a PHI with 2
incoming values, FoldReturnIntoUncondBranch will remove the no longer
used incoming value and remove the no longer needed phi as well. This
leaves us with a BB that no longer has a PHI, but the subsequent call
to FoldReturnIntoUncondBranch from FoldReturnAndProcessPred will not
remove the return instruction (which still uses the result of the call
instruction). This prevents EliminateRecursiveTailCall to remove
the value, as it is still being used in a basicblock which has no
predecessors.

The basicblock can not be erased on the spot, because its iterator is
still being used in runTRE.

This issue was exposed when removing the threshold on size for lifetime
marker insertion for named temporaries in clang. The testcase is a much
reduced version of peelOffOuterExpr(const Expr*, const ExplodedNode *)
from clang/lib/StaticAnalyzer/Core/BugReporterVisitors.cpp.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222354 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[mips][microMIPS] Implement CodeGen support for 16-bit instruction ADDIUR2.
Jozef Kolek [Wed, 19 Nov 2014 13:23:58 +0000 (13:23 +0000)]
[mips][microMIPS] Implement CodeGen support for 16-bit instruction ADDIUR2.

Differential Revision: http://reviews.llvm.org/D5800

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222352 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[mips][microMIPS] Implement CodeGen support for ADDIUS5 instruction.
Jozef Kolek [Wed, 19 Nov 2014 13:11:09 +0000 (13:11 +0000)]
[mips][microMIPS] Implement CodeGen support for ADDIUS5 instruction.

Differential Revision: http://reviews.llvm.org/D5799

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222351 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[mips][microMIPS] Add disassembler tests for new microMIPS 32-bit
Jozef Kolek [Wed, 19 Nov 2014 11:49:57 +0000 (11:49 +0000)]
[mips][microMIPS] Add disassembler tests for new microMIPS 32-bit
instructions: LWXS, BGEZALS, BLTZALS, BEQZC, BNEZC, JALS and JALRS.

http://reviews.llvm.org/D5413

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222349 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[mips][microMIPS] Implement LWXS instruction.
Jozef Kolek [Wed, 19 Nov 2014 11:39:12 +0000 (11:39 +0000)]
[mips][microMIPS] Implement LWXS instruction.

Differential Revision: http://reviews.llvm.org/D5407

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222348 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[mips][microMIPS] Implement SDBBP and RDHWR instructions.
Jozef Kolek [Wed, 19 Nov 2014 11:25:50 +0000 (11:25 +0000)]
[mips][microMIPS] Implement SDBBP and RDHWR instructions.

Differential Revision: http://reviews.llvm.org/D5240

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222347 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoUse ninja pools to limit the number of concurrent compile/link jobs.
Evgeniy Stepanov [Wed, 19 Nov 2014 10:30:02 +0000 (10:30 +0000)]
Use ninja pools to limit the number of concurrent compile/link jobs.

This change makes use of the new "job pool" capability in cmake 3.0
with ninja generator to allow limiting the number of concurrent jobs
of a certain type.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222341 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[X86][SSE] pslldq/psrldq byte shifts/rotation for SSE2
Simon Pilgrim [Wed, 19 Nov 2014 10:06:49 +0000 (10:06 +0000)]
[X86][SSE] pslldq/psrldq byte shifts/rotation for SSE2

This patch builds on http://reviews.llvm.org/D5598 to perform byte rotation shuffles (lowerVectorShuffleAsByteRotate) on pre-SSSE3 (palignr) targets - pre-SSSE3 is only enabled on i8 and i16 vector targets where it is a more definite performance gain.

I've also added a separate byte shift shuffle (lowerVectorShuffleAsByteShift) that makes use of the ability of the SLLDQ/SRLDQ instructions to implicitly shift in zero bytes to avoid the need to create a zero register if we had used palignr.

Differential Revision: http://reviews.llvm.org/D5699

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222340 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAliasSetTracker: UnknownInsts should contribute to the refcount
David Majnemer [Wed, 19 Nov 2014 09:41:05 +0000 (09:41 +0000)]
AliasSetTracker: UnknownInsts should contribute to the refcount

AliasSetTracker::addUnknown may create an AliasSet devoid of pointers
just to contain an instruction if no suitable AliasSet already exists.
It will then AliasSet::addUnknownInst and we will be done.

However, it's possible for addUnknown to choose an existing AliasSet to
addUnknownInst.
If this were to occur, we are in a bit of a pickle: removing pointers
from the AliasSet can cause the entire AliasSet to become destroyed,
taking our unknown instructions out with them.

Instead, keep track whether or not our AliasSet has any unknown
instructions.

This fixes PR21582.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222338 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAdd missing header
David Blaikie [Wed, 19 Nov 2014 08:12:55 +0000 (08:12 +0000)]
Add missing header

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222337 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoUpdate SetVector to rely on the underlying set's insert to return a pair<iterator...
David Blaikie [Wed, 19 Nov 2014 07:49:26 +0000 (07:49 +0000)]
Update SetVector to rely on the underlying set's insert to return a pair<iterator, bool>

This is to be consistent with StringSet and ultimately with the standard
library's associative container insert function.

This lead to updating SmallSet::insert to return pair<iterator, bool>,
and then to update SmallPtrSet::insert to return pair<iterator, bool>,
and then to update all the existing users of those functions...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222334 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[AArch64] Disable useAA for Cortex-A57.
Hao Liu [Wed, 19 Nov 2014 06:48:56 +0000 (06:48 +0000)]
[AArch64] Disable useAA for Cortex-A57.
Using AA during CodeGen is very useful for in-order cores. It is less useful for ooo cores. Also I find
enabling useAA for Cortex-A57 may generate worse code for some test cases. If useAA in codegen is improved
and benefical for ooo cores, we can enable it again.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222333 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[AArch64] Enable SeparateConstOffsetFromGEP, EarlyCSE and LICM passes on AArch64...
Hao Liu [Wed, 19 Nov 2014 06:39:53 +0000 (06:39 +0000)]
[AArch64] Enable SeparateConstOffsetFromGEP, EarlyCSE and LICM passes on AArch64 backend.
SeparateConstOffsetFromGEP can gives more optimizaiton opportunities related to GEPs, which benefits EarlyCSE
and LICM. By enabling these passes we can have better address calculations and generate a better addressing
mode. Some SPEC 2006 benchmarks (astar, gobmk, namd) have obvious improvements on Cortex-A57.

Reviewed in http://reviews.llvm.org/D5864.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222331 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[SeparateConstOffsetFromGEP] Allow SeparateConstOffsetFromGEP pass to lower GEPs.
Hao Liu [Wed, 19 Nov 2014 06:24:44 +0000 (06:24 +0000)]
[SeparateConstOffsetFromGEP] Allow SeparateConstOffsetFromGEP pass to lower GEPs.
If LowerGEP is enabled, it can lower a GEP with multiple indices into GEPs with a single index
or arithmetic operations. Lowering GEPs can always extract structure indices. Lowering GEPs can
also give use more optimization opportunities. It can benefit passes like CSE, LICM and CGP.

Reviewed in http://reviews.llvm.org/D5864

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222328 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRemove StringMap::GetOrCreateValue in favor of StringMap::insert
David Blaikie [Wed, 19 Nov 2014 05:49:42 +0000 (05:49 +0000)]
Remove StringMap::GetOrCreateValue in favor of StringMap::insert

Having two ways to do this doesn't seem terribly helpful and
consistently using the insert version (which we already has) seems like
it'll make the code easier to understand to anyone working with standard
data structures. (I also updated many references to the Entry's
key and value to use first() and second instead of getKey{Data,Length,}
and get/setValue - for similar consistency)

Also removes the GetOrCreateValue functions so there's less surface area
to StringMap to fix/improve/change/accommodate move semantics, etc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222319 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoTeach llvm-build to avoid touching LibraryDependencies.inc unless the contents
Peter Collingbourne [Wed, 19 Nov 2014 03:34:20 +0000 (03:34 +0000)]
Teach llvm-build to avoid touching LibraryDependencies.inc unless the contents
change. This saves us from rebuilding llvm-config each time we reconfigure.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222308 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoExpose LLVM version string via macro in llvm-config.h, and modify Go bindings
Peter Collingbourne [Wed, 19 Nov 2014 03:34:17 +0000 (03:34 +0000)]
Expose LLVM version string via macro in llvm-config.h, and modify Go bindings
to make use of it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222307 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoMake StringSet::insert return pair<iterator, bool> like other self-associative containers
David Blaikie [Wed, 19 Nov 2014 02:56:00 +0000 (02:56 +0000)]
Make StringSet::insert return pair<iterator, bool> like other self-associative containers

StringSet is still a bit dodgy in that it exposes the raw iterator of
the StringMap parent, which exposes the weird detail that StringSet
actually has a 'value'... but anyway, this is useful for a handful of
clients that want to reference the newly inserted/persistent string data
in the StringSet/Map/Entry/thing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222302 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agollvm-readobj: fix off-by-one error in COFFDumper
Rui Ueyama [Wed, 19 Nov 2014 02:07:10 +0000 (02:07 +0000)]
llvm-readobj: fix off-by-one error in COFFDumper

It printed out base relocation table header as table entry.
This patch also makes llvm-readobj to not skip ABSOLUTE entries
becuase it was confusing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222299 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoUse a memcpy so that type based alias analysis sees the change.
Rafael Espindola [Wed, 19 Nov 2014 01:02:22 +0000 (01:02 +0000)]
Use a memcpy so that type based alias analysis sees the change.

The other option would be to do something like

if (that.isSingleWord())
  VAL = that.VAL;
else
  pVal = that.pVal

This bug was causing 86TTI::getIntImmCost to be miscompiled in a LTO
bootstrap in stage2, causing the build of stage3 to fail.

LLVM is getting quiet good at exploiting this. Not sure if there is anything
a sanitizer could do to help

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222294 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[Aarch64] Customer lowering of CTPOP to SIMD should check for NEON availability
Weiming Zhao [Wed, 19 Nov 2014 00:29:14 +0000 (00:29 +0000)]
[Aarch64] Customer lowering of CTPOP to SIMD should check for NEON availability

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222292 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[asan] add experimental basic-block tracing to asan-coverage; also fix -fsanitize...
Kostya Serebryany [Wed, 19 Nov 2014 00:22:58 +0000 (00:22 +0000)]
[asan] add experimental basic-block tracing to asan-coverage; also fix -fsanitize-coverage=3 which was broken by r221718

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222290 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agollvm-readobj: teach it how to dump COFF base relocation table
Rui Ueyama [Wed, 19 Nov 2014 00:18:07 +0000 (00:18 +0000)]
llvm-readobj: teach it how to dump COFF base relocation table

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222289 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoIntroduce llvm::SplitAllCriticalEdges
Kostya Serebryany [Wed, 19 Nov 2014 00:17:31 +0000 (00:17 +0000)]
Introduce llvm::SplitAllCriticalEdges

Summary:
move the code from BreakCriticalEdges::runOnFunction()
into a separate utility function llvm::SplitAllCriticalEdges()
so that it can be used independently.
No functionality change intended.

Test Plan: check-llvm

Reviewers: nlewycky

Reviewed By: nlewycky

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D6313

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222288 91177308-0d34-0410-b5e6-96231b3b80d8