Commit Graph

100667 Commits

Author SHA1 Message Date
Andrew Trick
594e2aa61e Drive-by comment fix. This regalloc comment was not accurate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202432 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 21:37:30 +00:00
Chandler Carruth
d76403be1d [docs] Stop advertising 'make update'. It isn't implemented in CMake and
seems unlikely to be added. It also doesn't seem like it should be part
of the build system at all (consider out-of-tree builds).

We should probably add nice, easy tool for this that works both for svn
client trees and git-svn client trees, but it probably won't be spelled
"make update".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202430 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 21:19:42 +00:00
Roman Divacky
14551f041b Lower FNEG just like FABS to fneg[ds] and fmov[ds], thus avoiding
expensive libcall. Also, Qp_neg is not implemented on at least
FreeBSD. This is also what gcc is doing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202422 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 19:26:29 +00:00
Matheus Almeida
3e31a5684a Add getter method to access Reloc::Model.
Some MC components like Target Streamers or Assembly Parsers
may need to access the relocation model in order to expand
some directives and/or assembly macros.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202418 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 18:39:53 +00:00
Eric Christopher
e6a9693ab1 Revert r201751 and solve the const problem a different way - by
making the cache mutable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202417 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 18:36:10 +00:00
Adrian Prantl
4bd26ae070 Debug info: Remove ARMAsmPrinter::EmitDwarfRegOp(). AsmPrinter can now
scan the register file for sub- and super-registers.
No functionality change intended.

(Tests are updated because the comments in the assembler output are
different.)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202416 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 17:56:08 +00:00
Richard Osborne
cc331c8f40 [XCore] Support functions returning more than 4 words.
If a function returns a large struct by value return the first 4 words
in registers and the rest on the stack in a location reserved by the
caller. This is needed to support the xC language which supports
functions returning an arbitrary number of return values. This is
r202397 reapplied with a fix to avoid an uninitialized read of a member.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202414 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 17:47:54 +00:00
Richard Osborne
870d997d8c [XCore] Make LowerCallResult a static function.
No functionality change. This is r202396 reapplied with no changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202413 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 17:47:48 +00:00
Rafael Espindola
b9e06b97ce Remove MCPureStreamer.
We moved MCJIT to use native object formats a long time ago and R600
now uses ELF, so it was dead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202408 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 16:17:34 +00:00
Alexander Kornienko
106a28c770 Re-apply r200853, which should not crash after Clang plugins were converted to loadable modules in r201256.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202404 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 14:47:37 +00:00
Richard Osborne
e4db795a4c Revert r202396, r202397.
These are causing test failures, revert for now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202398 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 14:24:13 +00:00
Richard Osborne
ad4ffce35f [XCore] Support functions returning more than 4 words.
Summary:
If a function returns a large struct by value return the first 4 words
in registers and the rest on the stack in a location reserved by the
caller. This is needed to support the xC language which supports
functions returning an arbitrary number of return values.

Reviewers: robertlytton

Reviewed By: robertlytton

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D2889

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202397 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 14:00:40 +00:00
Richard Osborne
6257ef8732 [XCore] Make LowerCallResult a static function.
No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202396 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 14:00:34 +00:00
Richard Osborne
c26292d4dc [XCore] Target optimized library function __memcpy_4()
Summary:
If the src, dst and size of a memcpy are known to be 4 byte aligned we
can call __memcpy_4() instead of memcpy().

Reviewers: robertlytton

Reviewed By: robertlytton

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D2871

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202395 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 13:39:07 +00:00
Richard Osborne
83eab939a4 [XCore] Add dag combines for instructions that ignore some input bits.
These instructions ignore the high bits of one of their input operands -
try and use this to simplify the code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202394 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 13:20:11 +00:00
Richard Osborne
ef174f733a [XCore] Provide information about known zero bits of resource instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202393 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 13:20:06 +00:00
Kostya Serebryany
9aef4445a3 [asan] fix a pair of silly typos
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202391 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 13:13:59 +00:00
Kostya Serebryany
124bbea6cd [asan] disable asan-detect-invalid-pointer-pair (was enabled by mistake)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202390 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 12:56:20 +00:00
Kostya Serebryany
9b3d3a96a8 [asan] *experimental* implementation of invalid-pointer-pair detector (finds when two unrelated pointers are compared or subtracted). This implementation has both false positives and false negatives and is not tuned for performance. A bug report for a proper implementation will follow.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202389 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 12:45:36 +00:00
Chandler Carruth
36b191fc1c [docs] Actually spell out the new version requirements for the host C++
toolchain of LLVM. These are already being enforced by the build system
and have been discussed quite a few times on the lists, but
documentation is important. =]

Also, garbage collect the majority of the information about broken host
GCC toolchains. These aren't really relevant any more as they're all
older than the minimum requirement. I've left a few notes about
compilers one step older than the current requirement as these compilers
are at least conceivable to use, and it's better to preserve this kind
of hard-won institutional knowledge.

The next step will be some specific docs on how to set up a sufficiently
modern host toolchain if your system doesn't come with one. But that'll
be tomorrow. =]

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202375 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 10:35:57 +00:00
Chandler Carruth
e2eb9a55a8 [docs] Clean up some of the required software to not mention irrelevant
bits of software and to use a modern GCC version.

The Subversion bit was weird anyways -- it has nothing to do with
compiling LLVM. Also, there are many other ways to get at the trunk
source (git, git-svn, etc).

The TeXinfo thing... I have no idea about. But you can get a working
LLVM w/o it pretty easily. If man pages or something are missing, that
hardly seems like a problem. If folks really want this back, let me
know, but it seems mostly like a distraction.

I'd still like to separate this into:
- Required software to compile.
- Optional software to compile.
- Required software for certain *contributor* activities (like
  regenerating configure scripts).

Also we need to mention that there are multiple options for build
systems, and the differences.

Also we should mention Windows.

Also probably other stuff I'm forgetting.

I'm wondering if this whole thing needs to be shot in the head and we
should just start a new, simpler getting started that doesn't have so
many years of accumulated stuff that is no longer relevant.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202373 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 09:57:48 +00:00
Chandler Carruth
5fb0df0c1c [docs] Switch this table to the simple form as well. No content changed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202372 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 09:46:09 +00:00
Chandler Carruth
adf2c605f9 [docs] Switch to the incredibly simpler "simple table" form. It now
actually looks like the table on the webpage and is entertainingly
smaller, easier to read, and easier to edit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202371 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 09:41:13 +00:00
Chandler Carruth
19061ddb5f [docs] Delete tons of bad information in the requirements section of the
getting started guide.

Some highlights:
- I heard there was this Clang compiler that you could use for your
  host compiler. Not sure though.
- We no longer have a GCC frontend with weird build restrictions.
- Windows is doing a bit better than partially supported.
- We nuked everything to do with itanium.
- SPUs? Really?
- Xcode 2.5 and gcc 4.0.1 are really not a concern -- they don't work.
- OMG, we actually tried building LLVM on Alpha? Really?
- PowerPC works pretty well these days.

There is still a lot of stuff here I'm pretty dubious about, but I nuked
most of what was actively misleading, out of date, or patently wrong.
Some of it (mingw stuff especially) isn't really lacking, its just that
the comments here were actively wrong. Hopefully folks that know those
platforms can add back correct / modern information.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202370 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 09:33:55 +00:00
Daniel Sanders
fb1e26d9a2 Stop test/CodeGen/X86/v4i32load-crash.ll targeting non-X86-64 targets.
Summary:
Fixes an issue where a test attempts to use -mcpu=x86-64 on non-X86-64 targets.
This triggers an assertion in the MIPS backend since it doesn't know what ABI to
use by default for unrecognized processors.

CC: llvm-commits, rafael

Differential Revision: http://llvm-reviews.chandlerc.com/D2877

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202369 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 09:24:31 +00:00
Alexey Samsonov
9e443ca92a [CMake] Introduce LLVM_BUILD_EXTERNAL_COMPILER_RT option
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202363 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 08:59:01 +00:00
Eric Christopher
1348dc097d Don't emit anything into the debug_ranges section if we aren't emitting
any ranges - this includes CU ranges where we were previously emitting an
end list marker even if we didn't have a list.

Testcase includes a test for line table only code emission as the problem
was noticed while writing this test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202357 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 07:44:45 +00:00
Mark Seaborn
1c30a35b0f Exception handling docs: Fix a typo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202354 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 06:54:04 +00:00
Craig Topper
74be63b014 [X86] Fix Uses/Defs lists for INS, OUTS, SCAS, CMPS, LODS
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202348 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 05:08:25 +00:00
Craig Topper
7e992687ad [X86] Add RAX/EAX/AX Uses/Defs to XCHG RAX/EAX/AX instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202347 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 04:27:00 +00:00
Craig Topper
956ef7f165 [X86] Add RAX/EAX/AX/AL Uses/Defs to the absolute memory location move instructions. Patch by Florian Lukas with some additional instructions fixed by me. Fixes PR18975.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202345 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 04:07:57 +00:00
Craig Topper
9572b75e5b Fix indentation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202344 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 03:30:36 +00:00
Craig Topper
d7c1afb11a Fix odd indentation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202342 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 03:11:13 +00:00
Juergen Ributzka
4fb1463736 Revert "Use count 0."
This reverts commit r202283, because when we use GuardMalloc the test will fail
due to additional output to std err.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202341 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 03:10:10 +00:00
Ben Langmuir
8a6c29ef5b Revert "Use StringRef in raw_fd_ostream constructor"
This reverts commit r202225, which may cause a performance regression.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202338 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 02:09:10 +00:00
Michel Danzer
644aecfc97 R600/SI: Optimize SI_KILL for constant operands
If the SI_KILL operand is constant, we can either clear the exec mask if
the operand is negative, or do nothing otherwise.

Reviewed-by: Tom Stellard <thomas.stellard@amd.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202337 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 01:47:09 +00:00
Michel Danzer
a5fbf24716 R600/SI: Allow SI_KILL for geometry shaders
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202336 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 01:47:02 +00:00
Eric Christopher
14ec6808c4 If we're only emitting line tables for a particular CU then don't add
any ranges to the list of ranges for the CU as we don't want to emit
them anyway. This ensures that we will still emit ranges if we have
a compile unit compiled with only line tables and one compiled with
full debug info requested (we'll emit for the one with full debug info).

Update testcase metadata accordingly to continue emitting ranges.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202333 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 01:25:00 +00:00
Eric Christopher
0181303087 Add a debug info code generation level to the compile unit metadata
and update everything accordingly. This can be used to conditionalize
the amount of output in the backend based on the amount of debug
requested/metadata emission scheme by a front end (e.g. clang).

Paired with a commit to clang.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202332 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 01:24:56 +00:00
Eric Christopher
dac5e919df Formatting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202323 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 00:15:44 +00:00
Eric Christopher
1c2d4eb2b6 Add an explanatory comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202321 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 00:04:54 +00:00
Eric Christopher
63ba773cf0 Grammar and spelling.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202318 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-26 23:54:42 +00:00
Adrian Prantl
f68eb4f989 Fix a type error that crept into r202313.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202317 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-26 23:46:39 +00:00
Eric Christopher
0115a4ef95 Remove unnecessary llvm:: qualification.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202316 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-26 23:27:16 +00:00
Andrew Trick
9ad6bda08e Use regnum regex in an XCore test case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202315 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-26 23:22:49 +00:00
Adrian Prantl
6a3e1dbb8c Debug info: Refactor AsmPrinter::EmitDwarfRegOp to make the control flow
more obvious.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202313 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-26 23:03:37 +00:00
Matt Arsenault
3f19b69b01 R600: Remove unnecessary build_vector pattern.
It is already fully handled in AMDGPUISelDAGToDAG.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202312 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-26 23:00:58 +00:00
Andrew Trick
aa115a7fbf Very temporarily XFAILing a test. Will be fixed shortly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202310 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-26 22:39:59 +00:00
Nico Rieck
06eab82006 Fix broken FileCheck prefixes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202308 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-26 22:29:11 +00:00
Andrew Trick
eaf8a32859 Add a limit to the heuristic that register allocates instructions in local order.
This handles pathological cases in which we see 2x increase in spill
code for large blocks (~50k instructions). I don't have a unit test
for this behavior.

Fixes rdar://16072279.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202304 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-26 22:07:26 +00:00