Rafael Espindola [Tue, 26 May 2015 00:32:28 +0000 (00:32 +0000)]
Call the destructors of the MCSections.
They now contain the fragments. If we don't call the destructors the
fragments leak.
Found by an asan bot.
llvm-svn: 238161
Rafael Espindola [Mon, 25 May 2015 23:48:22 +0000 (23:48 +0000)]
Store a MCSection in MCFragment.
Part of the work to merge MCSectionData into MCSection.
llvm-svn: 238160
Rafael Espindola [Mon, 25 May 2015 23:14:17 +0000 (23:14 +0000)]
Turn MCSectionData into a field of MCSection.
This also changes MCAssembler to store a vector of MCSections instead of an
iplist of MCSectionData.
llvm-svn: 238159
Rafael Espindola [Mon, 25 May 2015 22:57:48 +0000 (22:57 +0000)]
Move MCSectionData to MCSection.h.
Another step in merging MCSectionData and MCSection.
llvm-svn: 238158
Rafael Espindola [Mon, 25 May 2015 22:07:33 +0000 (22:07 +0000)]
Remove dead code. NFC.
llvm-svn: 238157
Rafael Espindola [Mon, 25 May 2015 21:56:55 +0000 (21:56 +0000)]
Make a few MCSectionELF& variables const. NFC.
This just reduces the noise from another patch.
llvm-svn: 238156
Rafael Espindola [Mon, 25 May 2015 20:39:23 +0000 (20:39 +0000)]
Insert MCSectionData into the section list directly in getOrCreateSectionData.
Removing the logic from the constructor will make it easier to merge
MCSectionData and MCSection.
llvm-svn: 238155
Craig Topper [Mon, 25 May 2015 20:01:18 +0000 (20:01 +0000)]
Use range-based for loops. NFC.
llvm-svn: 238154
Andrey Churbanov [Mon, 25 May 2015 20:01:16 +0000 (20:01 +0000)]
fixed missed arch renaming (from C.Bergstrom)
llvm-svn: 238153
Bjorn Steinbrink [Mon, 25 May 2015 19:46:38 +0000 (19:46 +0000)]
Remove conflicting attributes before adding deduced readonly/readnone
Summary:
In case of functions that have a pointer argument and only pass it to
each other, the function attributes pass deduces that the pointer should
get the readnone attribute, but fails to remove a readonly attribute
that may already have been present.
Reviewers: nlewycky
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D9995
llvm-svn: 238152
Davide Italiano [Mon, 25 May 2015 19:12:18 +0000 (19:12 +0000)]
[llvm-readobj/ELF] Teach how to decode DF_1_XXX flags
llvm-readobj -dynamic-table output.
Before:
0x000000006FFFFFFB unknown
After:
0x000000006FFFFFFB FLAGS_1 NOW ORIGIN
Differential Revision: http://reviews.llvm.org/D9958
llvm-svn: 238151
Rafael Espindola [Mon, 25 May 2015 18:34:26 +0000 (18:34 +0000)]
Move HasInstructions to MCSection.
llvm-svn: 238150
Simon Pilgrim [Mon, 25 May 2015 17:49:13 +0000 (17:49 +0000)]
[X86][AVX2] Vectorized i16 shift operators
Part of D9474, this patch extends AVX2 v16i16 types to 2 x 8i32 vectors and uses i32 shift variable shifts before packing back to i16.
Adds AVX2 tests for v8i16 and v16i16
llvm-svn: 238149
Tom Stellard [Mon, 25 May 2015 16:15:56 +0000 (16:15 +0000)]
R600/SI: Remove some unnecessary patterns from VINTRP multiclass
DisableEncoding and Constraints can be set using let statements around
the multiclass defs.
llvm-svn: 238148
Tom Stellard [Mon, 25 May 2015 16:15:54 +0000 (16:15 +0000)]
R600/SI: Fix bug with v_interp_p1_f32 instructions on 16 bank lds chips
The src and dst register cannot be the same on chips with 16 lds banks.
llvm-svn: 238147
Tom Stellard [Mon, 25 May 2015 16:15:50 +0000 (16:15 +0000)]
R600/SI: Use NAME rather than opName as the key to the MCOpcode tables
This lets us drop a parameter the opName parameter to the VINTRP
multiclass and makes it possible to create multiple VINTRP defs
with the same asm mnemonic.
llvm-svn: 238146
Kit Barton [Mon, 25 May 2015 15:52:45 +0000 (15:52 +0000)]
This patch adds support for the vector quadword add/sub instructions introduced
in POWER8.
These are the Clang-related changes for http://reviews.llvm.org/D9081
vadduqm
vaddeuqm
vaddcuq
vaddecuq
vsubuqm
vsubeuqm
vsubcuq
vsubecuq
All builtins are added in altivec.h, and guarded with the POWER8_VECTOR and
powerpc64 macros.
http://reviews.llvm.org/D9903
llvm-svn: 238145
Kit Barton [Mon, 25 May 2015 15:49:26 +0000 (15:49 +0000)]
This patch adds support for the vector quadword add/sub instructions introduced
in POWER8:
vadduqm
vaddeuqm
vaddcuq
vaddecuq
vsubuqm
vsubeuqm
vsubcuq
vsubecuq
In addition to adding the instructions themselves, it also adds support for the
v1i128 type for intrinsics (Intrinsics.td, Function.cpp, and
IntrinsicEmitter.cpp).
http://reviews.llvm.org/D9081
llvm-svn: 238144
Rafael Espindola [Mon, 25 May 2015 15:04:26 +0000 (15:04 +0000)]
Move bundle info from MCSectionData to MCSection.
llvm-svn: 238143
Rafael Espindola [Mon, 25 May 2015 14:57:35 +0000 (14:57 +0000)]
Add a isBundleLocked helper to MCELFStreamer.
llvm-svn: 238142
Rafael Espindola [Mon, 25 May 2015 14:25:28 +0000 (14:25 +0000)]
Move LayoutOrder to MCSection.
llvm-svn: 238141
Rafael Espindola [Mon, 25 May 2015 14:18:24 +0000 (14:18 +0000)]
Use a simple initial value for the ordinal.
The odd value was only used by the ELF writer to check if the section was one
that it had created.
llvm-svn: 238140
Rafael Espindola [Mon, 25 May 2015 14:12:48 +0000 (14:12 +0000)]
Stop forwarding getOrdinal and setOrdinal.
llvm-svn: 238139
Rafael Espindola [Mon, 25 May 2015 14:04:31 +0000 (14:04 +0000)]
Use default member initializes. NFC.
llvm-svn: 238138
Rafael Espindola [Mon, 25 May 2015 14:00:56 +0000 (14:00 +0000)]
Move Ordinal from MCSectionData to MCSection. NFC.
Part of the work to merge MCSectionData and MCSection.
llvm-svn: 238137
Rafael Espindola [Mon, 25 May 2015 13:50:21 +0000 (13:50 +0000)]
Simplify boolean conditional return statements.
Patch by Richard <legalize@xmission.com>
llvm-svn: 238134
Benjamin Kramer [Mon, 25 May 2015 13:28:03 +0000 (13:28 +0000)]
Refactor: Simplify boolean conditional return statements in llvm/lib/DebugInfo/DWARF
Use clang-tidy to simplify boolean conditional return statements. Patch by
Richard Thomson <legalize@xmission.com>!
Differential Revision: http://reviews.llvm.org/D9972
llvm-svn: 238132
Michael Kuperstein [Mon, 25 May 2015 12:35:25 +0000 (12:35 +0000)]
[X86] When pattern-matching scalar FMA3 intrinsics, don't re-arrange the first and second operands.
The semantics of the scalar FMA intrinsics are that the high vector elements are copied from the first source.
The existing pattern switches src1 and src2 around, to match the "213" order, which ends up tying the original src2 to the dest. Since the actual scalar fma3 instructions copy the high elements from the dest register, the wrong values are copied.
This modifies the pattern to leave src1 and src2 in their original order.
Differential Revision: http://reviews.llvm.org/D9908
llvm-svn: 238131
Elena Demikhovsky [Mon, 25 May 2015 11:33:13 +0000 (11:33 +0000)]
Added promotion to EXTRACT_SUBVECTOR operand.
I encountered with this case in one of KNL tests for i1 vectors.
v16i1 = EXTRACT_SUBVECTOR v32i1, x
llvm-svn: 238130
Alexander Musman [Mon, 25 May 2015 11:21:20 +0000 (11:21 +0000)]
Bug fix for PR23577 (https://llvm.org/bugs/show_bug.cgi?id=23577#c0).
"1-4" specifiers are returned as numeric constants, not identifiers,
and should be treated as such. Currently pragma handler incorrectly
assumes that they are returned as identifiers.
Patch by Andrey Bokhanko.
Differential Revision: http://reviews.llvm.org/D9856
llvm-svn: 238129
Greg Clayton [Mon, 25 May 2015 02:58:29 +0000 (02:58 +0000)]
Quiet compiler warnings about virtual and override not being consistent.
llvm-svn: 238128
Greg Clayton [Mon, 25 May 2015 02:55:21 +0000 (02:55 +0000)]
Fix compiler warnings regarding size_t not always being 64 bit in the printf.
llvm-svn: 238127
NAKAMURA Takumi [Mon, 25 May 2015 01:43:34 +0000 (01:43 +0000)]
Reformat.
llvm-svn: 238126
NAKAMURA Takumi [Mon, 25 May 2015 01:43:23 +0000 (01:43 +0000)]
Prune CRLFs.
llvm-svn: 238125
Chandler Carruth [Mon, 25 May 2015 01:00:46 +0000 (01:00 +0000)]
[Unroll] Switch from an eagerly populated SCEV cache to one that is
lazily built.
Also, make it a much more generic SCEV cache, which today exposes only
a reduced GEP model description but could be extended in the future to
do other profitable caching of SCEV information.
llvm-svn: 238124
Duncan P. N. Exon Smith [Sun, 24 May 2015 17:03:15 +0000 (17:03 +0000)]
AsmPrinter: Make DIEValue::Ty private, NFC
llvm-svn: 238123
Duncan P. N. Exon Smith [Sun, 24 May 2015 16:58:59 +0000 (16:58 +0000)]
AsmPrinter: Avoid creating symbols in DwarfStringPool
Stop creating symbols we don't need in `DwarfStringPool`. The consumers
only call `DwarfStringPoolEntryRef::getSymbol()` when DWARF is
relocatable, so this just stops creating the unused symbols when it's
not. This drops memory usage from 851 MB to 845 MB, around 0.7%.
(I'm looking at `llc` memory usage on `verify-uselistorder.lto.opt.bc`;
see r236629 for details.)
llvm-svn: 238122
Duncan P. N. Exon Smith [Sun, 24 May 2015 16:54:59 +0000 (16:54 +0000)]
AsmPrinter: Prune an include, NFC
llvm-svn: 238121
Duncan P. N. Exon Smith [Sun, 24 May 2015 16:51:29 +0000 (16:51 +0000)]
AsmPrinter: Remove dead code, NFC
llvm-svn: 238120
Duncan P. N. Exon Smith [Sun, 24 May 2015 16:48:54 +0000 (16:48 +0000)]
AsmPrinter: Avoid EmitLabelDifference() in DwarfAccelTable
Mint a new function, `AsmPrinter::emitDwarfStringOffset()`, which takes
a `DwarfStringPoolEntryRef`. When DWARF is relocatable across sections,
this defers to `emitSectionOffset()` and emits the `MCSymbol`;
otherwise, just emit the offset directly, without using any intermediate
symbols.
`EmitLabelDifference()` is already optimized to emit absolute label
differences cheaply when possible, so there aren't any major memory
savings here (853 MB down to 851 MB, or 0.2%). However, it prepares for
making the `MCSymbol`s in the `DwarfStringPool` optional.
(I'm looking at `llc` memory usage on `verify-uselistorder.lto.opt.bc`;
see r236629 for details.)
llvm-svn: 238119
Duncan P. N. Exon Smith [Sun, 24 May 2015 16:44:32 +0000 (16:44 +0000)]
AsmPrinter: Use DwarfStringPoolEntry in DwarfAccelTable, NFC
This is just an API change, but it prepares to stop using
`EmitLabelDifference()` when possible.
llvm-svn: 238118
Duncan P. N. Exon Smith [Sun, 24 May 2015 16:40:47 +0000 (16:40 +0000)]
AsmPrinter: Make DIEString small
Expose the `DwarfStringPool` entry in a header, and store a pointer to
it directly in `DIEString`. Instead of choosing at creation time how to
emit it, use the `dwarf::Form` to determine that at emission time.
Besides avoiding the other `DIEValue`, this shaves two pointers off of
`DIEString`; the data is now a single pointer. This is a nice cleanup
on its own -- and drops memory usage from 861 MB down to 853 MB, around
0.9% -- but it's also preparation for passing `DIEValue`s by value.
(I'm looking at `llc` memory usage on `verify-uselistorder.lto.opt.bc`;
see r236629 for details.)
llvm-svn: 238117
Duncan P. N. Exon Smith [Sun, 24 May 2015 16:33:33 +0000 (16:33 +0000)]
AsmPrinter: Extract DwarfStringPoolEntry from DwarfStringPool, NFC
Extract out `DwarfStringPoolEntry` and `DwarfStringPoolRef` from
`DwarfStringPool` so that downstream users can start using
`DwarfStringPool::getEntry()` directly. This will allow users to delay
the decision between emitting a symbol or an offset until later.
llvm-svn: 238116
Simon Atanasyan [Sun, 24 May 2015 16:19:27 +0000 (16:19 +0000)]
[ELF] Fix lld when no unique sections is used
Original patch of Shankar Easwaran with additional test case.
The yaml2obj does not allow to create an object file with non-unique
sections names so the fix uses a binary input object file in the test
case.
llvm-svn: 238115
Duncan P. N. Exon Smith [Sun, 24 May 2015 16:14:59 +0000 (16:14 +0000)]
AsmPrinter: Emit the DwarfStringPool offset directly when possible
Change `DwarfStringPool` to calculate byte offsets on-the-fly, and
update `DwarfUnit::getLocalString()` to use a `DIEInteger` instead of a
`DIEDelta` when Dwarf doesn't use relocations (i.e., Mach-O). This
eliminates another call to `EmitLabelDifference()`, and drops memory
usage from 865 MB down to 861 MB, around 0.5%.
(I'm looking at `llc` memory usage on `verify-uselistorder.lto.opt.bc`;
see r236629 for details.)
llvm-svn: 238114
Duncan P. N. Exon Smith [Sun, 24 May 2015 16:10:35 +0000 (16:10 +0000)]
DebugInfo: Clarify test/DebugInfo/X86/stmt-list-multiple-compile-units.ll
This test was relying on the numbering of preceding .set directives, but
an upcoming commit is going to remove some of them. Make the CHECKs
more nuanced.
llvm-svn: 238113
Duncan P. N. Exon Smith [Sun, 24 May 2015 16:06:08 +0000 (16:06 +0000)]
AsmPrinter: Refactor DwarfStringPool::getEntry(), NFC
Move `DwarfStringPool`'s `getEntry()` to the header (and make it a
member function) in preparation for calculating symbol offsets
on-the-fly.
llvm-svn: 238112
Vince Harron [Sun, 24 May 2015 13:24:31 +0000 (13:24 +0000)]
Remove log2 dependency when building against Android API-9 SDK
Android's API-9 SDK is missing log2 builtins. A previous commit added
support for building against this API revision but this requires log2l
to be present. (And it doesn't seem to be defined, despite being in
the headers.)
Author: pasaulais (Pierre-Andre Saulais)
Differential Revision: http://reviews.llvm.org/D9884
llvm-svn: 238111
Renato Golin [Sun, 24 May 2015 11:18:44 +0000 (11:18 +0000)]
Move parseSubArch to ARMTargetParser. NFC
Using getCanonicalArchName() is the right way to parse ARM arch names.
Mapping ARMTargetParser IDs to Triple Arch IDs is temporary, until they
are merged into a TargetDescription class.
This was the last LLVM FIXME to move things to ARMTargetParser. Now on
to Clang and beyond.
llvm-svn: 238110
Evgeniy Stepanov [Sun, 24 May 2015 02:47:59 +0000 (02:47 +0000)]
[msan] Mprotect all inaccessible memory regions.
Fix 2 bugs in memory mapping setup:
- the invalid region at offset 0 was not protected because mmap at
address 0 fails with EPERM on most Linux systems. We did not
notice this because the check condition was flipped: the code was
checking that mprotect has failed. And the test that was supposed
to catch this was weakened by the mitigations in the mmap
interceptor.
- when running without origins, the origin shadow range was left
unprotected.
The new test ensures that mmap w/o MAP_FIXED always returns valid
application addresses.
llvm-svn: 238109
Matt Arsenault [Sun, 24 May 2015 00:51:27 +0000 (00:51 +0000)]
Add target hook to allow merging stores of nonzero constants
On GPU targets, materializing constants is cheap and stores are
expensive, so only doing this for zero vectors was silly.
Most of the new testcases aren't optimally merged, and are for
later improvements.
llvm-svn: 238108
Davide Italiano [Sat, 23 May 2015 23:08:28 +0000 (23:08 +0000)]
[Support/ELF] Add missing DF_1_XXX bits.
In preparation for adding support for decoding DF_FLAGS_1 to
llvm-readobj.
Differential Revision: http://reviews.llvm.org/D9955
Reviewed by: echristo
llvm-svn: 238107
David Majnemer [Sat, 23 May 2015 19:23:55 +0000 (19:23 +0000)]
[Driver] Unbreak hexagon build bots
AddHexagonTargetArgs didn't respect the driver flags by unconditionally
pushing -fno-signed-char. Instead, add Hexagon handling to
isSignedCharDefault.
llvm-svn: 238106
David Majnemer [Sat, 23 May 2015 18:48:37 +0000 (18:48 +0000)]
[Driver] Handle -fno-signed-char and -fno-unsigned-char
GCC maps -fno-unsigned-char to -fsigned-char and -fno-signed-char to
-funsigned-char.
llvm-svn: 238105
Benjamin Kramer [Sat, 23 May 2015 17:20:53 +0000 (17:20 +0000)]
Bump SmallString to the minimum required amount for raw_ostream to avoid allocation.
NFC.
llvm-svn: 238104
Benjamin Kramer [Sat, 23 May 2015 16:53:07 +0000 (16:53 +0000)]
[Mips] Prefer Twine::utohexstr over utohexstr, saves a string copy.
NFC.
llvm-svn: 238103
Benjamin Kramer [Sat, 23 May 2015 16:39:10 +0000 (16:39 +0000)]
[AArch64] Clean up the ELF streamer a bit.
llvm-svn: 238102
Benjamin Kramer [Sat, 23 May 2015 16:15:10 +0000 (16:15 +0000)]
[AArch64] Move AArch64TargetStreamer out of MCStreamer.h
It doesn't belong in the shared MC layer. NFC.
llvm-svn: 238101
Andrew Wilkins [Sat, 23 May 2015 15:16:09 +0000 (15:16 +0000)]
[llgo] cmd/llgoi: use line editor
Summary:
This diff adds line-editing to llgoi, by
vendoring and using github.com/peterh/liner.
I have only implemented the basics here;
follow-ups will come later to add persisted
history, and completion,
Reviewers: pcc
Reviewed By: pcc
Subscribers: axw, llvm-commits
Differential Revision: http://reviews.llvm.org/D9811
llvm-svn: 238100
Aaron Ballman [Sat, 23 May 2015 14:46:49 +0000 (14:46 +0000)]
Silencing a spurious -Wreturn-type warning; NFC.
llvm-svn: 238099
Szabolcs Sipos [Sat, 23 May 2015 14:21:01 +0000 (14:21 +0000)]
[clang-tidy] Fix for llvm.org/PR23572
misc-static-assert won't report asserts whose conditions contain calls to non constexpr functions.
llvm-svn: 238098
Hal Finkel [Sat, 23 May 2015 12:18:10 +0000 (12:18 +0000)]
[PowerPC] Fix fast-isel when compare is split from branch
When the compare feeding a branch was in a different BB from the branch, we'd
try to "regenerate" the compare in the block with the branch, possibly trying
to make use of values not available there. Copy a page from AArch64's play book
here to fix the problem (at least in terms of correctness).
Fixes PR23640.
llvm-svn: 238097
NAKAMURA Takumi [Sat, 23 May 2015 10:44:30 +0000 (10:44 +0000)]
Update ExecutionEngine/LLVMBuild.txt, to add LLVMCodeGen.
llvm-svn: 238096
Craig Topper [Sat, 23 May 2015 08:45:10 +0000 (08:45 +0000)]
Give more meaningful names than I and J to some for loop variables after converting to range-based loops.
llvm-svn: 238095
Craig Topper [Sat, 23 May 2015 08:20:33 +0000 (08:20 +0000)]
Fix an unused variable warning in release builds.
llvm-svn: 238094
Craig Topper [Sat, 23 May 2015 08:01:41 +0000 (08:01 +0000)]
Use range-based for loops. NFC.
llvm-svn: 238093
Tobias Grosser [Sat, 23 May 2015 05:58:30 +0000 (05:58 +0000)]
Remove unnecessary indirection through SCEV
llvm-svn: 238092
Tobias Grosser [Sat, 23 May 2015 05:58:27 +0000 (05:58 +0000)]
Use unique_ptr to clarify ownershop of ScopArrayInfoMap
llvm-svn: 238091
Tobias Grosser [Sat, 23 May 2015 05:14:09 +0000 (05:14 +0000)]
Use unique_ptr to clarify ownership of ScopStmt
llvm-svn: 238090
Greg Clayton [Sat, 23 May 2015 03:54:53 +0000 (03:54 +0000)]
Did some cleanup to stop us from leaking Pipe file descriptors.
The main issue was the Communication::Disconnect() was calling its Connection::Disconnect() but this wouldn't release the pipes that the ConnectionFileDescriptor was using. We also have someone that is holding a strong reference to the Process so that when you re-run, target replaces its m_process_sp, but it doesn't get destructed because someone has a strong reference to it. I need to track that down. But, even if we have a strong reference to the a process that is outstanding, we need to call Process::Finalize() to have it release as much of its resources as possible to avoid memory bloat.
Removed the ProcessGDBRemote::SetExitStatus() override and replaced it with ProcessGDBRemote::DidExit().
Now we aren't leaking file descriptors and the stand alone test suite should run much better.
llvm-svn: 238089
Tobias Grosser [Sat, 23 May 2015 03:34:41 +0000 (03:34 +0000)]
Enable scalar and PHI code generation for Polly
The feature itself has been committed by Johannes in r238070. As this is the
way forward, we now enable it to ensure we get test coverage.
Thank you Johannes for this nice work!
llvm-svn: 238088
Tobias Grosser [Sat, 23 May 2015 03:34:35 +0000 (03:34 +0000)]
Make use of scalar/phi code generation explicit in the tests
This ensures we pass all tests independently of how we set the options
-disable-polly-intra-scop-scalar-to-array and -polly-model-phi-nodes.
(At least if we enable both or disable both. Enabling them individually makes
little sense, as they will hopefully disappear soon anyhow).
llvm-svn: 238087
Kostya Serebryany [Sat, 23 May 2015 02:12:05 +0000 (02:12 +0000)]
[lib/Fuzzer] doxygen-ify the comments for the user interface
llvm-svn: 238086
Kostya Serebryany [Sat, 23 May 2015 01:56:39 +0000 (01:56 +0000)]
[dfsan] ignore more __sanitizer callbacks
llvm-svn: 238085
Duncan P. N. Exon Smith [Sat, 23 May 2015 01:45:07 +0000 (01:45 +0000)]
AsmPrinter: Remove the vtable-entry from DIEValue
Remove all virtual functions from `DIEValue`, dropping the vtable
pointer from its layout. Instead, create "impl" functions on the
subclasses, and use the `DIEValue::Type` to implement the dynamic
dispatch.
This is necessary -- obviously not sufficient -- for passing `DIEValue`s
around by value. However, this change stands on its own: we make tons
of these. I measured a drop in memory usage from 888 MB down to 860 MB,
or around 3.2%.
(I'm looking at `llc` memory usage on `verify-uselistorder.lto.opt.bc`;
see r236629 for details.)
llvm-svn: 238084
David Majnemer [Sat, 23 May 2015 01:32:17 +0000 (01:32 +0000)]
[Sema] Don't use dyn_cast to detect an AtomicType
An AtomicType might be hidden behind arbitrary levels of typedefs.
getAs<> will reliably walk through the sugar to get the underlying
AtomicType.
This fixes PR23638.
llvm-svn: 238083
Duncan P. N. Exon Smith [Sat, 23 May 2015 01:26:26 +0000 (01:26 +0000)]
CodeGen: Remove redundant DIETypeSignature::dump(), NFC
We already have this in `DIEValue`; no reason to shadow it.
llvm-svn: 238082
Kostya Serebryany [Sat, 23 May 2015 01:22:35 +0000 (01:22 +0000)]
[lib/Fuzzer] fully get rid of std::cerr in libFuzzer
llvm-svn: 238081
Akira Hatanaka [Sat, 23 May 2015 01:14:08 +0000 (01:14 +0000)]
Stop resetting NoFramePointerElim in TargetMachine::resetTargetOptions.
This is part of the work to remove TargetMachine::resetTargetOptions.
In this patch, instead of updating global variable NoFramePointerElim in
resetTargetOptions, its use in DisableFramePointerElim is replaced with a call
to TargetFrameLowering::noFramePointerElim. This function determines on a
per-function basis if frame pointer elimination should be disabled.
There is no change in functionality except that cl:opt option "disable-fp-elim"
can now override function attribute "no-frame-pointer-elim".
llvm-svn: 238080
Akira Hatanaka [Sat, 23 May 2015 01:12:26 +0000 (01:12 +0000)]
Simplify and rename function overrideFunctionAttributes. NFC.
This is in preparation to making changes needed to stop resetting
NoFramePointerElim in resetTargetOptions.
llvm-svn: 238079
Kostya Serebryany [Sat, 23 May 2015 01:07:46 +0000 (01:07 +0000)]
[lib/Fuzzer] start getting rid of std::cerr. Sadly, these parts of C++ library used in libFuzzer badly interract with the same code used in the target function and also with dfsan. It's easier to just not use std::cerr than to defeat these issues.
llvm-svn: 238078
Akira Hatanaka [Sat, 23 May 2015 00:31:56 +0000 (00:31 +0000)]
Remove unnecessary command line option "-disable-fp-elim".
This option currently has no effect as function attribute
"no-frame-pointer-elim=false" overrides it.
llvm-svn: 238077
Rafael Espindola [Sat, 23 May 2015 00:30:33 +0000 (00:30 +0000)]
This reverts commit r238064 and r238055.
They depend on a reverted llvm commit.
llvm-svn: 238076
Rafael Espindola [Sat, 23 May 2015 00:22:44 +0000 (00:22 +0000)]
Revert "make reciprocal estimate code generation more flexible by adding command-line options"
This reverts commit r238051.
It broke some bots:
http://lab.llvm.org:8011/builders/llvm-ppc64-linux1/builds/18190
llvm-svn: 238075
Philip Reames [Sat, 23 May 2015 00:05:43 +0000 (00:05 +0000)]
Correct a mistaken comment from 238071 [NFC]
llvm-svn: 238074
Rafael Espindola [Fri, 22 May 2015 23:58:30 +0000 (23:58 +0000)]
Produce a single string table in a ELF .o
Normally an ELF .o has two string tables, one for symbols, one for section
names.
With the scheme of naming sections like ".text.foo" where foo is a symbol,
there is a big potential saving in using a single one.
Building llvm+clang+lld with master and with this patch the results were:
master: 193,267,008 bytes
patch: 186,107,952 bytes
master non unique section names: 183,260,192 bytes
patch non unique section names: 183,118,632 bytes
So using non usique saves 10,006,816 bytes, and the patch saves 7,159,056 while
still using distinct names for the sections.
llvm-svn: 238073
Lang Hames [Fri, 22 May 2015 23:56:44 +0000 (23:56 +0000)]
[lld] Manage atom ordinals in the File class rather than using a static counter.
This is a cleaner fix for the race-condition bug that was originally papered
over by r237857.
llvm-svn: 238072
Philip Reames [Fri, 22 May 2015 23:53:24 +0000 (23:53 +0000)]
Extend EarlyCSE to handle basic cases from JumpThreading and CVP
This patch extends EarlyCSE to take advantage of the information that a controlling branch gives us about the value of a Value within this and dominated basic blocks. If the current block has a single predecessor with a controlling branch, we can infer what the branch condition must have been to execute this block. The actual change to support this is downright simple because EarlyCSE's existing scoped hash table logic deals with most of the complexity around merging.
The patch actually implements two optimizations.
1) The first is analogous to JumpThreading in that it enables EarlyCSE's CSE handling to fold branches which are exactly redundant due to a previous branch to branches on constants. (It doesn't actually replace the branch or change the CFG.) This is pretty clearly a win since it enables substantial CFG simplification before we start trying to inline.
2) The second is analogous to CVP in that it exploits the knowledge gained to replace dominated *uses* of the original value. EarlyCSE does not otherwise reason about specific uses, so this is the more arguable one. It does enable further simplication and constant folding within the rest of the visit by EarlyCSE.
In both cases, the added code only handles the easy dominance based case of each optimization. The general case is deferred to the existing passes.
Differential Revision: http://reviews.llvm.org/D9763
llvm-svn: 238071
Johannes Doerfert [Fri, 22 May 2015 23:43:58 +0000 (23:43 +0000)]
Add scalar and phi code generation
To reduce compile time and to allow more and better quality SCoPs in
the long run we introduced scalar dependences and PHI-modeling. This
patch will now allow us to generate code if one or both of those
options are set. While the principle of demoting scalars as well as
PHIs to memory in order to communicate their value stays the same,
this allows to delay the demotion till the very end (the actual code
generation). Consequently:
- We __almost__ do not modify the code if we do not generate code
for an optimized SCoP in the end. Thus, the early exit as well as
the unprofitable option will now actually preven us from
introducing regressions in case we will probably not get better
code.
- Polly can be used as a "pure" analyzer tool as long as the code
generator is set to none.
- The original SCoP is almost not touched when the optimized version
is placed next to it. Runtime regressions if the runtime checks
chooses the original are not to be expected and later
optimizations do not need to revert the demotion for that part.
- We will generate direct accesses to the demoted values, thus there
are no "trivial GEPs" that select the first element of a scalar we
demoted and treated as an array.
Differential Revision: http://reviews.llvm.org/D7513
llvm-svn: 238070
Oleksiy Vyalov [Fri, 22 May 2015 23:14:39 +0000 (23:14 +0000)]
Use target's SIGSTOP and SIGINT when making decision about continue after async packet.
http://reviews.llvm.org/D9857
llvm-svn: 238068
David Majnemer [Fri, 22 May 2015 23:02:11 +0000 (23:02 +0000)]
[InstCombine] Don't eagerly propagate nsw for A*B+A*C => A*(B+C)
InstCombine transforms A *nsw B +nsw A *nsw C to A *nsw (B + C).
This is incorrect -- e.g. if A = -1, B = 1, C = INT_SMAX. Then
nothing in the LHS overflows, but the multiplication in RHS overflows.
We need to first make sure that we won't multiple by INT_SMAX + 1.
Test case `add_of_mul` contributed by Sanjoy Das.
This fixes PR23635.
Differential Revision: http://reviews.llvm.org/D9629
llvm-svn: 238066
Greg Clayton [Fri, 22 May 2015 23:00:59 +0000 (23:00 +0000)]
Fix this module to work with current packects and also to be able to figure out average packets speed and standard deviation.
llvm-svn: 238065
Sanjay Patel [Fri, 22 May 2015 22:59:27 +0000 (22:59 +0000)]
add missing include for TargetRecip
llvm-svn: 238064
Kostya Serebryany [Fri, 22 May 2015 22:47:03 +0000 (22:47 +0000)]
[lib/Fuzzer] remove -use_coverage_pairs=1, an experimental feature that is unlikely to ever scale
llvm-svn: 238063
Kostya Serebryany [Fri, 22 May 2015 22:43:05 +0000 (22:43 +0000)]
[lib/Fuzzer] mention the user-supplied mutators
llvm-svn: 238062
Jonathan Peyton [Fri, 22 May 2015 22:37:22 +0000 (22:37 +0000)]
Fix doxygen comments
These fixes make doxygen happy.
llvm-svn: 238061
Jonathan Peyton [Fri, 22 May 2015 22:35:51 +0000 (22:35 +0000)]
Fix spelling errors
These spelling errors are in comments and some debug messages.
llvm-svn: 238060
Kostya Serebryany [Fri, 22 May 2015 22:35:31 +0000 (22:35 +0000)]
[lib/Fuzzer] extend the fuzzer interface to allow user-supplied mutators
llvm-svn: 238059
Justin Bogner [Fri, 22 May 2015 22:16:55 +0000 (22:16 +0000)]
CodeGen: Avoid a reserved name and fix the naming style of some arguments. NFC
It's undefined to use reserved names like _Diags. Fix up the other
parameter names to consistently use a modern style while I'm here.
llvm-svn: 238058
Saleem Abdulrasool [Fri, 22 May 2015 21:47:24 +0000 (21:47 +0000)]
builtins: mark functions as aapcs on Windows
Windows does not use AAPCS, but rather AAPCS-VFP, and thus the functions which
are assumed to be AAPCS will cause invalid argument setup. Ensure that the
functions are marked as AAPCS.
llvm-svn: 238056