oota-llvm.git
7 years agoFix docs typo regarding lit.local.cfg files
Jonathan Roelofs [Sat, 7 Feb 2015 17:18:26 +0000 (17:18 +0000)]
Fix docs typo regarding lit.local.cfg files

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228499 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[BasicAA] Try to disambiguate GEPs through arrays of structs into
Ahmed Bougacha [Sat, 7 Feb 2015 17:04:29 +0000 (17:04 +0000)]
[BasicAA] Try to disambiguate GEPs through arrays of structs into
different fields.

We can show that two GEPs off of the same (possibly multidimensional)
array of structs, into different fields, can't alias.  Quoting:

For two GEPOperators GEP1 and GEP2, if we find that:
- both GEPs begin indexing from the exact same pointer;
- the last indices in both GEPs are constants, indexing into a struct;
- said indices are different, hence,the pointed-to fields are different;
- and both GEPs only index through arrays prior to that;

this lets us determine that the struct that GEP1 indexes into and the
struct that GEP2 indexes into must either precisely overlap or be
completely disjoint.  Because they cannot partially overlap, indexing
into different non-overlapping fields of the struct will never alias.

The other BasicAA::aliasGEP rules worked in some cases, but not all
(for example, the i32x3 struct in the testcase).
We can add this simple ad-hoc rule to complement them.

rdar://19717375
Differential Revision: http://reviews.llvm.org/D7453

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228498 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoSCEV: Compress disposition pairs.
Benjamin Kramer [Sat, 7 Feb 2015 16:41:12 +0000 (16:41 +0000)]
SCEV: Compress disposition pairs.

Composing DenseMaps and SmallVectors is still somewhat suboptimal,
but this at least halves the size of the vector elements. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228497 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoSmallVector: Move emplace_back to SmallVectorImpl.
Benjamin Kramer [Sat, 7 Feb 2015 16:41:02 +0000 (16:41 +0000)]
SmallVector: Move emplace_back to SmallVectorImpl.

This resolves the strange effect that emplace_back is only available
when the type contained in the vector is not trivially copyable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228496 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[X86] Force fp stack folding tests to keep to specific domain.
Simon Pilgrim [Sat, 7 Feb 2015 16:14:55 +0000 (16:14 +0000)]
[X86] Force fp stack folding tests to keep to specific domain.

General boolean instructions (AND, ANDN, OR, XOR) need to use a specific domain instruction (and not just the default).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228495 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[X86][AVX2] More AVX2 integer stack folding tests.
Simon Pilgrim [Sat, 7 Feb 2015 16:07:27 +0000 (16:07 +0000)]
[X86][AVX2] More AVX2 integer stack folding tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228494 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoFix typos; NFC.
Andrea Di Biagio [Sat, 7 Feb 2015 13:56:20 +0000 (13:56 +0000)]
Fix typos; NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228493 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoMove DebugLocs around instead of copying.
Benjamin Kramer [Sat, 7 Feb 2015 12:28:15 +0000 (12:28 +0000)]
Move DebugLocs around instead of copying.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228491 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoMC: Emit COFF section flags in the "proper" order
David Majnemer [Sat, 7 Feb 2015 08:26:40 +0000 (08:26 +0000)]
MC: Emit COFF section flags in the "proper" order

COFF section flags are not idempotent:
  'rd' will make a read-write section because 'd' implies write
  'dr' will make a read-only section because 'r' disables write

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228490 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoConsistently use override rather than virtual.
Chandler Carruth [Sat, 7 Feb 2015 08:12:22 +0000 (08:12 +0000)]
Consistently use override rather than virtual.

This fixes -Winconsistent-missing-override warnings.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228489 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[PowerPC] Handle loop predecessor invokes
Hal Finkel [Sat, 7 Feb 2015 07:32:58 +0000 (07:32 +0000)]
[PowerPC] Handle loop predecessor invokes

If a loop predecessor has an invoke as its terminator, and the return value
from that invoke is used to determine the loop iteration space, then we can't
insert a computation based on that value in the loop predecessor prior to the
terminator (oops). If there's such an invoke, or just no predecessor for that
matter, insert a new loop preheader.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228488 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoAdd more DWARF 5 language constants.
Bruce Mitchener [Sat, 7 Feb 2015 06:35:30 +0000 (06:35 +0000)]
Add more DWARF 5 language constants.

Differential Revision: http://reviews.llvm.org/D7430

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228487 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoChange RHS-style decltype to LHS-style decltype<declval()>.
Zachary Turner [Sat, 7 Feb 2015 02:02:23 +0000 (02:02 +0000)]
Change RHS-style decltype to LHS-style decltype<declval()>.

Seems some compilers don't like the RHS-style decltype specifier.

This should fix the buildbots.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228484 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoResubmit unittests for DebugInfoPDB.
Zachary Turner [Sat, 7 Feb 2015 01:47:14 +0000 (01:47 +0000)]
Resubmit unittests for DebugInfoPDB.

These were originally submitted as part of r228428, but this part
caused a build breakage in LLVMConfig.  The library portion was
resubmitted independently since it was not causing breakage.

There were two reasons this was causing the build to fail.  The
first is that there were no Makefiles added for the PDB tests.  And
the second is that the DebugInfoPDB library was only being built by
CMake behind an "if (MSVC)" check.  This is wrong since this the
library hides platform specific details, and it was causing
LLVM-Config to not find the library when trying to build unittests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228482 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[docs][LLVM-style RTTI] Add a mention of multiple inheritance.
Sean Silva [Sat, 7 Feb 2015 01:16:26 +0000 (01:16 +0000)]
[docs][LLVM-style RTTI] Add a mention of multiple inheritance.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228479 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoSupport: Fix tests for VirtualityString
Duncan P. N. Exon Smith [Sat, 7 Feb 2015 01:07:30 +0000 (01:07 +0000)]
Support: Fix tests for VirtualityString

Since these `dwarf` functions return `const char *`, the tests need to
use `StringRef` for checks.  Should fix, e.g., hexagon [1].

[1]: http://lab.llvm.org:8011/builders/clang-hexagon-elf/builds/22435

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228478 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoSupport: Add dwarf::getVirtuality()
Duncan P. N. Exon Smith [Sat, 7 Feb 2015 00:37:15 +0000 (00:37 +0000)]
Support: Add dwarf::getVirtuality()

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228474 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoSupport: Use Dwarf.def for DW_VIRTUALITY, NFC
Duncan P. N. Exon Smith [Sat, 7 Feb 2015 00:36:23 +0000 (00:36 +0000)]
Support: Use Dwarf.def for DW_VIRTUALITY, NFC

Use definition file for `DW_VIRTUALITY_*`.  Add a `DW_VIRTUALITY_max`
both for ease of testing and for future use by the `LLParser`.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228473 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoSupport: Add dwarf::getAttributeEncoding()
Duncan P. N. Exon Smith [Fri, 6 Feb 2015 23:46:49 +0000 (23:46 +0000)]
Support: Add dwarf::getAttributeEncoding()

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228470 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoSupport: Rewrite AttributeEncodingString(), NFC
Duncan P. N. Exon Smith [Fri, 6 Feb 2015 23:45:37 +0000 (23:45 +0000)]
Support: Rewrite AttributeEncodingString(), NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228469 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoSupport: Stop stringifying DW_ATE_{lo,hi}_user
Duncan P. N. Exon Smith [Fri, 6 Feb 2015 23:44:24 +0000 (23:44 +0000)]
Support: Stop stringifying DW_ATE_{lo,hi}_user

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228468 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[PowerPC] Fixup incomplete revert of test/CodeGen/PowerPC/tls-pic.ll
Hal Finkel [Fri, 6 Feb 2015 23:30:06 +0000 (23:30 +0000)]
[PowerPC] Fixup incomplete revert of test/CodeGen/PowerPC/tls-pic.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228467 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Orc] Add a Kaleidoscope/Orc tutorial demonstrating lazy-irgen.
Lang Hames [Fri, 6 Feb 2015 23:26:33 +0000 (23:26 +0000)]
[Orc] Add a Kaleidoscope/Orc tutorial demonstrating lazy-irgen.

This tutorial builds on the lazy_codegen kaleidoscope/orc tutorial by making
a small set of changes (~75 lines diff) to defer ir-generation for function
definitions until functions are actually referenced.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228466 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoAdd code to llvm-objdump so the -section option with -macho will dump literal
Kevin Enderby [Fri, 6 Feb 2015 23:25:38 +0000 (23:25 +0000)]
Add code to llvm-objdump so the -section option with -macho will dump literal
sections with the Mach-O S_{4,8,16}BYTE_LITERALS section types.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228465 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[AArch64] Use the source location of the IR branch when creating Bcc
Ahmed Bougacha [Fri, 6 Feb 2015 23:15:39 +0000 (23:15 +0000)]
[AArch64] Use the source location of the IR branch when creating Bcc
from a conditional branch fed by an add/sub/mul-with-overflow node.

We previously used the SDLoc of the overflow node, for no good reason.
In some cases, this led to the Bcc and B terminators having different
source orders, and DBG_VALUEs being inserted between them.

The real issue is with the code that can't handle DBG_VALUEs between
terminators: the few places affected by this will be fixed soon.
In the meantime, fixing the SDLoc is a positive change no matter what.

No tests, as I have no idea how to get .loc emitted for branches?

rdar://19347133

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228463 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[X86][AVX2] Begun adding AVX2 integer stack folding tests.
Simon Pilgrim [Fri, 6 Feb 2015 23:12:15 +0000 (23:12 +0000)]
[X86][AVX2] Begun adding AVX2 integer stack folding tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228462 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRevert "r227976 - [PowerPC] Yet another approach to __tls_get_addr" and related fixups
Hal Finkel [Fri, 6 Feb 2015 23:07:40 +0000 (23:07 +0000)]
Revert "r227976 - [PowerPC] Yet another approach to __tls_get_addr" and related fixups

Unfortunately, even with the workaround of disabling the linker TLS
optimizations in Clang restored (which has already been done), this still
breaks self-hosting on my P7 machine (-O3 -DNDEBUG -mcpu=native).

Bill is currently working on an alternate implementation to address the TLS
issue in a way that also fully elides the linker bug (which, unfortunately,
this approach did not fully), so I'm reverting this now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228460 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Orc] Add a Kaleidoscope/Orc tutorial demonstrating lazy-codegen.
Lang Hames [Fri, 6 Feb 2015 23:04:53 +0000 (23:04 +0000)]
[Orc] Add a Kaleidoscope/Orc tutorial demonstrating lazy-codegen.

This tutorial builds on the initial kaleidoscope/orc tutorial by adding a
LazyEmittingLayer to the custom stack. This extra layer defers compilation
of modules in the JIT until they are statically referenced.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228459 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoSupport: Add dwarf::getLanguage()
Duncan P. N. Exon Smith [Fri, 6 Feb 2015 22:55:13 +0000 (22:55 +0000)]
Support: Add dwarf::getLanguage()

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228458 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoSupport: Rewrite dwarf::LanguageString(), NFC
Duncan P. N. Exon Smith [Fri, 6 Feb 2015 22:53:19 +0000 (22:53 +0000)]
Support: Rewrite dwarf::LanguageString(), NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228457 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Orc] Add a Kaleidoscope tutorial for Orc demonstrating eager compilation.
Lang Hames [Fri, 6 Feb 2015 22:52:04 +0000 (22:52 +0000)]
[Orc] Add a Kaleidoscope tutorial for Orc demonstrating eager compilation.

This tutorial demonstrates a very basic custom Orc JIT stack that performs eager
compilation: All modules are CodeGen'd immediately upon being added to the JIT.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228456 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoIR: Allow 32-bits for lines in debug location
Duncan P. N. Exon Smith [Fri, 6 Feb 2015 22:50:13 +0000 (22:50 +0000)]
IR: Allow 32-bits for lines in debug location

Remove unnecessary restriction of 24-bits for line numbers in
`MDLocation`.

The rest of the debug info schema (with the exception of local
variables) uses 32-bits for line numbers.  As I introduce the
specialized nodes, it makes sense to canonicalize on one size or the
other.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228455 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Orc] Add more missing headers.
Lang Hames [Fri, 6 Feb 2015 22:48:43 +0000 (22:48 +0000)]
[Orc] Add more missing headers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228454 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agouse local variables; NFC
Sanjay Patel [Fri, 6 Feb 2015 22:43:52 +0000 (22:43 +0000)]
use local variables; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228452 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoSupport: Stop stringifying DW_LANG_{lo,hi}_user
Duncan P. N. Exon Smith [Fri, 6 Feb 2015 22:34:48 +0000 (22:34 +0000)]
Support: Stop stringifying DW_LANG_{lo,hi}_user

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228451 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoAsmParser: Use DW_TAG_hi_user instead of magic constant, NFC
Duncan P. N. Exon Smith [Fri, 6 Feb 2015 22:29:35 +0000 (22:29 +0000)]
AsmParser: Use DW_TAG_hi_user instead of magic constant, NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228448 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoAsmWriter: Extract writeTag(), NFC
Duncan P. N. Exon Smith [Fri, 6 Feb 2015 22:28:05 +0000 (22:28 +0000)]
AsmWriter: Extract writeTag(), NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228447 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoAsmWriter: Extract writeMetadataAsOperand(), NFC
Duncan P. N. Exon Smith [Fri, 6 Feb 2015 22:27:22 +0000 (22:27 +0000)]
AsmWriter: Extract writeMetadataAsOperand(), NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228446 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[msan] Fix "missing origin" in atomic store.
Evgeniy Stepanov [Fri, 6 Feb 2015 21:47:39 +0000 (21:47 +0000)]
[msan] Fix "missing origin" in atomic store.

An atomic store always make the target location fully initialized (in the
current implementation). It should not store origin. Initialized memory can't
have meaningful origin, and, due to origin granularity (4 bytes) there is a
chance that this extra store would overwrite meaningfull origin for an adjacent
location.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228444 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoTest commit to see if it triggers an email to llvm-commits. No change.
Cameron Esfahani [Fri, 6 Feb 2015 21:33:08 +0000 (21:33 +0000)]
Test commit to see if it triggers an email to llvm-commits.  No change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228442 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoTry to fix Makefile build for LLVMDebugInfoPDB.
Zachary Turner [Fri, 6 Feb 2015 20:42:03 +0000 (20:42 +0000)]
Try to fix Makefile build for LLVMDebugInfoPDB.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228437 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoResubmit "Create lib/DebugInfo/PDB" (r228428)
Zachary Turner [Fri, 6 Feb 2015 20:30:52 +0000 (20:30 +0000)]
Resubmit "Create lib/DebugInfo/PDB" (r228428)

This change resubmits the patch that broke the build, this time
without unittests.  The unittests will be submitted separately
after the problem has been addressed:

--Original Commit Message--

Create lib/DebugInfo/PDB.

This patch creates a platform-independent interface to a PDB reader.
There is currently no implementation of this interface, which will
be provided in future patches.  This defines the basic object model
which any implementation must conform to.

Reviewed by: David Blaikie
Differential Revision: http://reviews.llvm.org/D7356

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228435 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoUse estimated number of optimized insns in unroll-threshold computation.
Michael Zolotukhin [Fri, 6 Feb 2015 20:20:40 +0000 (20:20 +0000)]
Use estimated number of optimized insns in unroll-threshold computation.

If complete-unroll could help us to optimize away N% of instructions, we
might want to do this even if the final size would exceed loop-unroll
threshold. However, we don't want to unroll huge loop, and we are add
AbsoluteThreshold to avoid that - this threshold will never be crossed,
even if we expect to optimize 99% instructions after that.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228434 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[InstSimplify] Add SimplifyFPBinOp function.
Michael Zolotukhin [Fri, 6 Feb 2015 20:02:51 +0000 (20:02 +0000)]
[InstSimplify] Add SimplifyFPBinOp function.

It is a variation of SimplifyBinOp, but it takes into account
FastMathFlags.

It is needed in inliner and loop-unroller to accurately predict the
transformation's outcome (previously we dropped the flags and were too
conservative in some cases).

Example:
float foo(float *a, float b) {
 float r;
 if (a[1] * b)
   r = /* a lot of expensive computations */;
 else
   r = 1;
 return r;
}
float boo(float *a) {
 return foo(a, 0.0);
}

Without this patch, we don't inline 'foo' into 'boo'.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228432 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRevert "Create lib/DebugInfo/PDB."
Zachary Turner [Fri, 6 Feb 2015 20:00:18 +0000 (20:00 +0000)]
Revert "Create lib/DebugInfo/PDB."

This reverts commit 21028, as it is causing failures in LLVMConfig.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228431 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[fuzzer] move default sanitizer options to a separate file
Kostya Serebryany [Fri, 6 Feb 2015 19:52:07 +0000 (19:52 +0000)]
[fuzzer] move default sanitizer options to a separate file

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228429 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoCreate lib/DebugInfo/PDB.
Zachary Turner [Fri, 6 Feb 2015 19:44:09 +0000 (19:44 +0000)]
Create lib/DebugInfo/PDB.

This patch creates a platform-independent interface to a PDB reader.
There is currently no implementation of this interface, which will
be provided in future patches.  This defines the basic object model
which any implementation must conform to.

Reviewed by: David Blaikie
Differential Revision: http://reviews.llvm.org/D7356

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228428 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Orc] Move SectionMemoryManager's implementation from MCJIT to ExecutionEngine.
Lang Hames [Fri, 6 Feb 2015 19:36:40 +0000 (19:36 +0000)]
[Orc] Move SectionMemoryManager's implementation from MCJIT to ExecutionEngine.

This is a more sensible home for SectionMemoryManager, and allows the implementation
to be shared between Orc and MCJIT.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228427 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Orc] Add some missing headers.
Lang Hames [Fri, 6 Feb 2015 19:34:40 +0000 (19:34 +0000)]
[Orc] Add some missing headers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228426 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Orc] Fix syntax error in LazyEmittingLayer::removeModuleSet.
Lang Hames [Fri, 6 Feb 2015 19:34:04 +0000 (19:34 +0000)]
[Orc] Fix syntax error in LazyEmittingLayer::removeModuleSet.

This was a trivial think-o, but it's in a method of a templated class
and doesn't have any callers yet, so the compiler let it pass. I hope
to add a unit test to cover this soon.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228425 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[LiveIntervalAnalysis] Speed up creation of live ranges for physical registers
Quentin Colombet [Fri, 6 Feb 2015 18:42:41 +0000 (18:42 +0000)]
[LiveIntervalAnalysis] Speed up creation of live ranges for physical registers
by using a segment set.

The patch addresses a compile-time performance regression in the LiveIntervals
analysis pass (see http://llvm.org/bugs/show_bug.cgi?id=18580). This regression
is especially critical when compiling long functions. Our analysis had shown
that the most of time is taken for generation of live intervals for physical
registers. Insertions in the middle of the array of live ranges cause quadratic
algorithmic complexity, which is apparently the main reason for the slow-down.

Overview of changes:
- The patch introduces an additional std::set<Segment>* member in LiveRange for
  storing segments in the phase of initial creation. The set is used if this
  member is not NULL, otherwise everything works the old way.
- The set of operations on LiveRange used during initial creation (i.e. used by
  createDeadDefs and extendToUses) have been reimplemented to use the segment
  set if it is available.
- After a live range is created the contents of the set are flushed to the
  segment vector, because the set is not as efficient as the vector for the
  later uses of the live range. After the flushing, the set is deleted and
  cannot be used again.
- The set is only for live ranges computed in
  LiveIntervalAnalysis::computeLiveInRegUnits() and getRegUnit() but not in
  computeVirtRegs(), because I did not bring any performance benefits to
  computeVirtRegs() and for some examples even brought a slow down.

Patch by Vaidas Gasiunas <vaidas.gasiunas@sap.com>

Differential Revision: http://reviews.llvm.org/D6013

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228421 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[LV] Move addRuntimeCheck to LoopAccessAnalysis
Adam Nemet [Fri, 6 Feb 2015 18:31:04 +0000 (18:31 +0000)]
[LV] Move addRuntimeCheck to LoopAccessAnalysis

This will allow it to be shared with the new Loop Distribution pass.

getFirstInst is currently duplicated across LoopVectorize.cpp and
LoopAccessAnalysis.cpp.  This is a short-term work-around until we figure out
a better solution.

NFC.  (The code moved is adjusted a bit for the name of the Loop member and
that PtrRtCheck is now a reference rather than a pointer.)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228418 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoDon't dllexport declarations
Reid Kleckner [Fri, 6 Feb 2015 17:59:49 +0000 (17:59 +0000)]
Don't dllexport declarations

Fixes PR22488

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228411 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoMake helper functions/classes/globals static. NFC.
Benjamin Kramer [Fri, 6 Feb 2015 17:51:54 +0000 (17:51 +0000)]
Make helper functions/classes/globals static. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228410 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoInstCombine: Combine select sequences into a single select
Matthias Braun [Fri, 6 Feb 2015 17:49:36 +0000 (17:49 +0000)]
InstCombine: Combine select sequences into a single select

Normalize
select(C0, select(C1, a, b), b) -> select((C0 & C1), a, b)
select(C0, a, select(C1, a, b)) -> select((C0 | C1), a, b)

This normal form may enable further combines on the And/Or and shortens
paths for the values. Many targets prefer the other but can go back
easily in CodeGen.

Differential Revision: http://reviews.llvm.org/D7399

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228409 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoLiveInterval: Fix SubRange memory leak.
Matthias Braun [Fri, 6 Feb 2015 17:28:47 +0000 (17:28 +0000)]
LiveInterval: Fix SubRange memory leak.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228405 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[mips] Fix FileCheck prefixes with whitespace between 'CHECK' and ':'
Daniel Sanders [Fri, 6 Feb 2015 16:37:30 +0000 (16:37 +0000)]
[mips] Fix FileCheck prefixes with whitespace between 'CHECK' and ':'

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228403 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoValue: Remove superfluous typedefs and deprecated method. NFC.
Benjamin Kramer [Fri, 6 Feb 2015 14:44:02 +0000 (14:44 +0000)]
Value: Remove superfluous typedefs and deprecated method. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228400 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoAArch64PromoteConstant: Modernize and resolve some Use<->User confusion.
Benjamin Kramer [Fri, 6 Feb 2015 14:43:55 +0000 (14:43 +0000)]
AArch64PromoteConstant: Modernize and resolve some Use<->User confusion.

NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228399 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoIRCE: Demote template to ArrayRef and SmallVector to array.
Benjamin Kramer [Fri, 6 Feb 2015 14:43:49 +0000 (14:43 +0000)]
IRCE: Demote template to ArrayRef and SmallVector to array.

NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228398 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoWhitespace.
Chad Rosier [Fri, 6 Feb 2015 14:14:41 +0000 (14:14 +0000)]
Whitespace.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228397 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoCorrecting keyword highlighting in llvm-mode.el.
Rafael Espindola [Fri, 6 Feb 2015 13:57:58 +0000 (13:57 +0000)]
Correcting keyword highlighting in llvm-mode.el.

llvm-mode was previously confused when variable names contained keywords.
This changes ensures that keywords are only highlighted when they're standalone.

Patch by Wilfred Hughes!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228396 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[OCaml] Add Llvm.build_empty_phi.
Peter Zotov [Fri, 6 Feb 2015 13:42:03 +0000 (13:42 +0000)]
[OCaml] Add Llvm.build_empty_phi.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228395 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[PBQP] Fix comment wording. NFC
Arnaud A. de Grandmaison [Fri, 6 Feb 2015 11:28:16 +0000 (11:28 +0000)]
[PBQP] Fix comment wording. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228390 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[X86] Add assembler and disassembler test cases for clflushopt, clwb, pcommit, xsaves...
Craig Topper [Fri, 6 Feb 2015 06:19:28 +0000 (06:19 +0000)]
[X86] Add assembler and disassembler test cases for clflushopt, clwb, pcommit, xsaves, xrstors, xsavec

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228385 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[X86] Remove a ton of duplicate test cases for the assembler.
Craig Topper [Fri, 6 Feb 2015 05:50:50 +0000 (05:50 +0000)]
[X86] Remove a ton of duplicate test cases for the assembler.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228383 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoR600/SI: Amend a test to ensure WQM is enabled for LDS in pixel shaders
Michel Danzer [Fri, 6 Feb 2015 02:51:29 +0000 (02:51 +0000)]
R600/SI: Amend a test to ensure WQM is enabled for LDS in pixel shaders

Reviewed-by: Tom Stellard <tom@stellard.net>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228374 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoR600/SI: Don't enable WQM for V_INTERP_* instructions v2
Michel Danzer [Fri, 6 Feb 2015 02:51:25 +0000 (02:51 +0000)]
R600/SI: Don't enable WQM for V_INTERP_* instructions v2

Doesn't seem necessary anymore. I think this was mostly compensating for
not enabling WQM for texture sampling instructions.

v2: Add test coverage
Reviewed-by: Tom Stellard <tom@stellard.net>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228373 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoR600/SI: Also enable WQM for image opcodes which calculate LOD v3
Michel Danzer [Fri, 6 Feb 2015 02:51:20 +0000 (02:51 +0000)]
R600/SI: Also enable WQM for image opcodes which calculate LOD v3

If whole quad mode isn't enabled for these, the level of detail is
calculated incorrectly for pixels along diagonal triangle edges, causing
artifacts.

v2: Use a TSFlag instead of lots of switch cases
v3: Add test coverage

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=88642
Reviewed-by: Tom Stellard <tom@stellard.net>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228372 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoIntroduce print-memderefs to test isDereferenceablePointer
Ramkumar Ramachandra [Fri, 6 Feb 2015 01:46:42 +0000 (01:46 +0000)]
Introduce print-memderefs to test isDereferenceablePointer

Since testing the function indirectly is tricky, introduce a direct
print-memderefs pass, in the same spirit as print-memdeps, which prints
dereferenceability information matched by FileCheck.

Differential Revision: http://reviews.llvm.org/D7075

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228369 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoAArch64: Make test more robust.
Matthias Braun [Thu, 5 Feb 2015 23:52:14 +0000 (23:52 +0000)]
AArch64: Make test more robust.

Avoid the creation of select instructions which can result in different
scheduling of the selects.

I also added a bunch of additional store volatiles. Those avoid A
CodeGen problem (bug?) where normalizes and denomarlizing the control
moves all shift instructions into the first block where ISel can't match
them together with the cmps.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228362 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoX86: Test cleanup
Matthias Braun [Thu, 5 Feb 2015 23:52:12 +0000 (23:52 +0000)]
X86: Test cleanup

Use FileCheck, make it more consistent and do not rely on unoptimized
or(cmp,cmp) getting combined for max to be matched.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228361 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoSmall cleanup of MachineLICM.cpp
Daniel Jasper [Thu, 5 Feb 2015 22:39:46 +0000 (22:39 +0000)]
Small cleanup of MachineLICM.cpp

Specifically:
- Calculate the loop pre-header once at the stat of HoistOutOfLoop, so:
  - We don't-DFS walk the MachineDomTree if we aren't going to do anything
  - Don't call getCurPreheader for each Scope
- Don't needlessly use a do-while loop
- Use early exit for Scopes.size() == 0

No functional changes intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228350 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Hexagon] Renaming v4 compare-and-jump instructions.
Colin LeMahieu [Thu, 5 Feb 2015 22:03:32 +0000 (22:03 +0000)]
[Hexagon] Renaming v4 compare-and-jump instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228349 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Hexagon] Deleting unused patterns.
Colin LeMahieu [Thu, 5 Feb 2015 21:43:56 +0000 (21:43 +0000)]
[Hexagon] Deleting unused patterns.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228348 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Hexagon] Simplifying and formatting several patterns. Changing a pattern multiply...
Colin LeMahieu [Thu, 5 Feb 2015 21:13:25 +0000 (21:13 +0000)]
[Hexagon] Simplifying and formatting several patterns.  Changing a pattern multiply to be expanded.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228347 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[BasicAA] Add datalayouts to make some tests more useful. NFC.
Ahmed Bougacha [Thu, 5 Feb 2015 21:10:14 +0000 (21:10 +0000)]
[BasicAA] Add datalayouts to make some tests more useful.  NFC.

Fixes PR22462: two of the tests have regressed for a while,
but were using CHECK-NOT to match "May:".  The actual output
was changed to "MayAlias:" at some point, which made the tests
useless.
Two others return MayAlias only because of a lack of analysis;
BasicAA returns PartialAlias in those cases, when a datalayout
is present.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228346 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Hexagon] Factoring a class out of some store patterns, deleting unused definitions...
Colin LeMahieu [Thu, 5 Feb 2015 20:38:58 +0000 (20:38 +0000)]
[Hexagon] Factoring a class out of some store patterns, deleting unused definitions and reformatting some patterns.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228345 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Hexagon] Factoring out a class for immediate transfers and cleaning up formatting.
Colin LeMahieu [Thu, 5 Feb 2015 20:08:52 +0000 (20:08 +0000)]
[Hexagon] Factoring out a class for immediate transfers and cleaning up formatting.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228343 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoInstrProf: Avoid using std::to_string
Justin Bogner [Thu, 5 Feb 2015 19:54:27 +0000 (19:54 +0000)]
InstrProf: Avoid using std::to_string

Apparently std::to_string doesn't exist in mingw32:

    http://lab.llvm.org:8011/builders/clang-native-mingw32-win7/builds/7990
    https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52015

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228340 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[ASan] Enable -asan-stack-dynamic-alloca by default.
Alexey Samsonov [Thu, 5 Feb 2015 19:39:20 +0000 (19:39 +0000)]
[ASan] Enable -asan-stack-dynamic-alloca by default.

By default, store all local variables in dynamic alloca instead of
static one. It reduces the stack space usage in use-after-return mode
(dynamic alloca will not be called if the local variables are stored
in a fake stack), and improves the debug info quality for local
variables (they will not be described relatively to %rbp/%rsp, which
are assumed to be clobbered by function calls).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228336 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRemove the use of getSubtarget in the creation of the X86
Eric Christopher [Thu, 5 Feb 2015 19:27:04 +0000 (19:27 +0000)]
Remove the use of getSubtarget in the creation of the X86
PassManager instance. In one case we can make the determination
from the Triple, in the other (execution dependency pass) the
pass will avoid running if we don't have any code that uses that
register class so go ahead and add it to the pipeline.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228334 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoUse cached subtargets inside X86FixupLEAs.
Eric Christopher [Thu, 5 Feb 2015 19:27:01 +0000 (19:27 +0000)]
Use cached subtargets inside X86FixupLEAs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228333 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoMigrate the X86 AsmPrinter away from using the subtarget when
Eric Christopher [Thu, 5 Feb 2015 19:06:45 +0000 (19:06 +0000)]
Migrate the X86 AsmPrinter away from using the subtarget when
dealing with module level emission. Currently this is using
the Triple to determine, but eventually the logic should
probably migrate to TLOF.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228332 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoFix an incorrect identifier
Sylvestre Ledru [Thu, 5 Feb 2015 18:57:02 +0000 (18:57 +0000)]
Fix an incorrect identifier

Summary:
EIEIO is not a correct declaration and breaks the build under Debian HURD.
Instead, E_IEIO is used.

//
http://www.gnu.org/software/libc/manual/html_node/Reserved-Names.html
Some additional classes of identifier names are reserved for future
extensions to the C language or the POSIX.1 environment. While using
these names for your own purposes right now might not cause a problem,
they do raise the possibility of conflict with future versions of the C
or POSIX standards, so you should avoid these names.
...
Names beginning with a capital ā€˜Eā€™ followed a digit or uppercase letter
may be used for additional error code names. See Error Reporting.//

Reported here:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=776965
And patch wrote by Svante Signell
With this patch, LLVM, Clang & LLDB build under Debian HURD:
https://buildd.debian.org/status/fetch.php?pkg=llvm-toolchain-3.6&arch=hurd-i386&ver=1%3A3.6~%2Brc2-2&stamp=1423040039

Reviewers: hfinkel

Reviewed By: hfinkel

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D7437

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228331 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Hexagon] Renaming Y2_barrier. Fixing issues where doubleword variants of instructio...
Colin LeMahieu [Thu, 5 Feb 2015 18:56:28 +0000 (18:56 +0000)]
[Hexagon] Renaming Y2_barrier.  Fixing issues where doubleword variants of instructions can't be newvalue producers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228330 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[PowerPC] Prepare loops for pre-increment loads/stores
Hal Finkel [Thu, 5 Feb 2015 18:43:00 +0000 (18:43 +0000)]
[PowerPC] Prepare loops for pre-increment loads/stores

PowerPC supports pre-increment load/store instructions (except for Altivec/VSX
vector load/stores). Using these on embedded cores can be very important, but
most loops are not naturally set up to use them. We can often change that,
however, by placing loops into a non-canonical form. Generically, this means
transforming loops like this:

  for (int i = 0; i < n; ++i)
    array[i] = c;

to look like this:

  T *p = array[-1];
  for (int i = 0; i < n; ++i)
    *++p = c;

the key point is that addresses accessed are pulled into dedicated PHIs and
"pre-decremented" in the loop preheader. This allows the use of pre-increment
load/store instructions without loop peeling.

A target-specific late IR-level pass (running post-LSR), PPCLoopPreIncPrep, is
introduced to perform this transformation. I've used this code out-of-tree for
generating code for the PPC A2 for over a year. Somewhat to my surprise,
running the test suite + externals on a P7 with this transformation enabled
showed no performance regressions, and one speedup:

External/SPEC/CINT2006/483.xalancbmk/483.xalancbmk
-2.32514% +/- 1.03736%

So I'm going to enable it on everything for now. I was surprised by this
because, on the POWER cores, these pre-increment load/store instructions are
cracked (and, thus, harder to schedule effectively). But seeing no regressions,
and feeling that it is generally easier to split instructions apart late than
it is to combine them late, this might be the better approach regardless.

In the future, we might want to integrate this functionality into LSR (but
currently LSR does not create new PHI nodes, so (for that and other reasons)
significant work would need to be done).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228328 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[PowerPC] Generate pre-increment floating-point ld/st instructions
Hal Finkel [Thu, 5 Feb 2015 18:42:53 +0000 (18:42 +0000)]
[PowerPC] Generate pre-increment floating-point ld/st instructions

PowerPC supports pre-increment floating-point load/store instructions, both r+r
and r+i, and we had patterns for them, but they were not marked as legal. Mark
them as legal (and add a test case).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228327 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Hexagon] Renaming A2_subri, A2_andir, A2_orir. Fixing formatting.
Colin LeMahieu [Thu, 5 Feb 2015 18:38:08 +0000 (18:38 +0000)]
[Hexagon] Renaming A2_subri, A2_andir, A2_orir.  Fixing formatting.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228326 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[CodeGen] Add hook/combine to form vector extloads, enabled on X86.
Ahmed Bougacha [Thu, 5 Feb 2015 18:31:02 +0000 (18:31 +0000)]
[CodeGen] Add hook/combine to form vector extloads, enabled on X86.

The combine that forms extloads used to be disabled on vector types,
because "None of the supported targets knows how to perform load and
sign extend on vectors in one instruction."

That's not entirely true, since at least SSE4.1 X86 knows how to do
those sextloads/zextloads (with PMOVS/ZX).
But there are several aspects to getting this right.
First, vector extloads are controlled by a profitability callback.
For instance, on ARM, several instructions have folded extload forms,
so it's not always beneficial to create an extload node (and trying to
match extloads is a whole 'nother can of worms).

The interesting optimization enables folding of s/zextloads to illegal
(splittable) vector types, expanding them into smaller legal extloads.

It's not ideal (it introduces some legalization-like behavior in the
combine) but it's better than the obvious alternative: form illegal
extloads, and later try to split them up.  If you do that, you might
generate extloads that can't be split up, but have a valid ext+load
expansion.  At vector-op legalization time, it's too late to generate
this kind of code, so you end up forced to scalarize. It's better to
just avoid creating egregiously illegal nodes.

This optimization is enabled unconditionally on X86.

Note that the splitting combine is happy with "custom" extloads. As
is, this bypasses the actual custom lowering, and just unrolls the
extload. But from what I've seen, this is still much better than the
current custom lowering, which does some kind of unrolling at the end
anyway (see for instance load_sext_4i8_to_4i64 on SSE2, and the added
FIXME).

Also note that the existing combine that forms extloads is now also
enabled on legal vectors.  This doesn't have a big effect on X86
(because sext+load is usually combined to sext_inreg+aextload).
On ARM it fires on some rare occasions; that's for a separate commit.

Differential Revision: http://reviews.llvm.org/D6904

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228325 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[CodeGen] Add isLoadExtLegalOrCustom helper to TargetLowering.
Ahmed Bougacha [Thu, 5 Feb 2015 18:15:59 +0000 (18:15 +0000)]
[CodeGen] Add isLoadExtLegalOrCustom helper to TargetLowering.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228322 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoX86 ABI fix for return values > 24 bytes.
Andrew Trick [Thu, 5 Feb 2015 18:09:05 +0000 (18:09 +0000)]
X86 ABI fix for return values > 24 bytes.

The return value's address must be returned in %rax.
i.e. the callee needs to copy the sret argument (%rdi)
into the return value (%rax).

This probably won't manifest as a bug when the caller is LLVM-compiled
code. But it is an ABI guarantee and tools expect it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228321 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Hexagon] Renaming A2_addi and formatting.
Colin LeMahieu [Thu, 5 Feb 2015 17:49:13 +0000 (17:49 +0000)]
[Hexagon] Renaming A2_addi and formatting.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228318 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agomove fold comments to the corresponding fold; NFC
Sanjay Patel [Thu, 5 Feb 2015 17:33:59 +0000 (17:33 +0000)]
move fold comments to the corresponding fold; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228317 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Hexagon] Since decoding conflicts have been resolved, isCodeGenOnly = 0 by default...
Colin LeMahieu [Thu, 5 Feb 2015 17:32:17 +0000 (17:32 +0000)]
[Hexagon] Since decoding conflicts have been resolved, isCodeGenOnly = 0 by default and remove explicitly setting it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228316 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoIdentical code for different branches (CID 1254883)
Sylvestre Ledru [Thu, 5 Feb 2015 17:00:23 +0000 (17:00 +0000)]
Identical code for different branches (CID 1254883)

Reviewers: kledzik, rafael

Reviewed By: rafael

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D6303

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228313 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoLowerSwitch: Use ConstantInt for CaseRange::{Low,High}
Hans Wennborg [Thu, 5 Feb 2015 16:58:10 +0000 (16:58 +0000)]
LowerSwitch: Use ConstantInt for CaseRange::{Low,High}

Case values are always ConstantInt. This allows us to remove
a bunch of casts. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228312 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoLowerSwitch: remove default args from CaseRange ctor; NFC
Hans Wennborg [Thu, 5 Feb 2015 16:50:27 +0000 (16:50 +0000)]
LowerSwitch: remove default args from CaseRange ctor; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228311 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agorevert 228308. The code has changed since the review
Sylvestre Ledru [Thu, 5 Feb 2015 16:35:44 +0000 (16:35 +0000)]
revert 228308. The code has changed since the review

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228309 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoIdentical code for different branches (CID 1254883)
Sylvestre Ledru [Thu, 5 Feb 2015 16:30:25 +0000 (16:30 +0000)]
Identical code for different branches (CID 1254883)

Reviewers: kledzik, rafael

Reviewed By: rafael

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D6303

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228308 91177308-0d34-0410-b5e6-96231b3b80d8