Rafael Espindola [Tue, 16 Dec 2014 22:29:43 +0000 (22:29 +0000)]
Make the assert a bit stronger.
We should get no declarations in here.
llvm-svn: 224382
Colin LeMahieu [Tue, 16 Dec 2014 22:17:09 +0000 (22:17 +0000)]
[Hexagon] Removing old XTYPE/BIT instructions and replacing usages.
llvm-svn: 224381
Nick Lewycky [Tue, 16 Dec 2014 22:02:06 +0000 (22:02 +0000)]
Look at whether TransformTypos returned a different Expr instead of looking at the number of uncorrected typos before and after. Correcting one typo may produce an expression with another TypoExpr in it, leading to matching counts even though a typo was corrected.
Fixes PR21925!
llvm-svn: 224380
Sanjay Patel [Tue, 16 Dec 2014 21:57:18 +0000 (21:57 +0000)]
merge consecutive loads that are offset from a base address
SelectionDAG::isConsecutiveLoad() was not detecting consecutive loads
when the first load was offset from a base address.
This patch recognizes that pattern and subtracts the offset before comparing
the second load to see if it is consecutive.
The codegen change in the new test case improves from:
vmovsd 32(%rdi), %xmm0
vmovsd 48(%rdi), %xmm1
vmovhpd 56(%rdi), %xmm1, %xmm1
vmovhpd 40(%rdi), %xmm0, %xmm0
vinsertf128 $1, %xmm1, %ymm0, %ymm0
To:
vmovups 32(%rdi), %ymm0
An existing test case is also improved from:
vmovsd (%rdi), %xmm0
vmovsd 16(%rdi), %xmm1
vmovsd 24(%rdi), %xmm2
vunpcklpd %xmm2, %xmm0, %xmm0 ## xmm0 = xmm0[0],xmm2[0]
vmovhpd 8(%rdi), %xmm1, %xmm3
To:
vmovsd (%rdi), %xmm0
vmovsd 16(%rdi), %xmm1
vmovhpd 24(%rdi), %xmm0, %xmm0
vmovhpd 8(%rdi), %xmm1, %xmm1
This patch fixes PR21771 ( http://llvm.org/bugs/show_bug.cgi?id=21771 ).
Differential Revision: http://reviews.llvm.org/D6642
llvm-svn: 224379
Rafael Espindola [Tue, 16 Dec 2014 21:57:03 +0000 (21:57 +0000)]
Fix handling of invalid -O options.
We were checking the value after truncating it to a bitfield.
Thanks to Yunzhong Gao for noticing it.
llvm-svn: 224378
Nick Lewycky [Tue, 16 Dec 2014 21:48:39 +0000 (21:48 +0000)]
Fix typo in comment. NFC.
llvm-svn: 224377
Kevin Enderby [Tue, 16 Dec 2014 21:48:27 +0000 (21:48 +0000)]
Fix a bug in llvm-objdump’s -private-headers for the LC_VERSION_MIN_IPHONEOS
load command not getting printed.
llvm-svn: 224376
Nick Lewycky [Tue, 16 Dec 2014 21:39:02 +0000 (21:39 +0000)]
Add a new flag, -fspell-checking-limit=<number> to control how many times we'll do spell checking. Note that spell checking will change the produced AST, so we don't automatically change this value when someone sets -ferror-limit=. With this, merge test typo-correction-pt2.cpp into typo-correction.cpp.
Remove Sema::UnqualifiedTyposCorrected, a cache of corrected typos. It would only cache typo corrections that didn't provide ValidateCandidate of which there were few left, and it had a bug when we had the same identifier spelled wrong twice. See the last two tests in typo-correction.cpp for cases this fires.
llvm-svn: 224375
Colin LeMahieu [Tue, 16 Dec 2014 21:28:58 +0000 (21:28 +0000)]
[Hexagon] Adding tstbit/bitclr/bitset instructions.
llvm-svn: 224374
Enrico Granata [Tue, 16 Dec 2014 21:28:16 +0000 (21:28 +0000)]
Improve the performance of the libc++ std::map formatter. This is not the full solution to the slowness of this formatter, but it's a 5% improvement in our testcase performance, which I am not going to complain too hard about.
llvm-svn: 224373
Kostya Serebryany [Tue, 16 Dec 2014 21:24:15 +0000 (21:24 +0000)]
[sanitizer] prevent function call merging for sanitizer-coverage callbacks
llvm-svn: 224372
Nico Weber [Tue, 16 Dec 2014 21:16:10 +0000 (21:16 +0000)]
Move -Wkeyword-macro into -pedantic, remove -Wreserved-id-macro.
As discussed on the post-commit review thread for r224012, -Wkeyword-macro fires
mostly on headers trying to set up portable defines and doesn't find much bad
stuff in practice. But [macro.names]p2 does disallow defining or undefining
keywords, override and final, and alignas, so keep the warning but move it
into -pedantic.
-Wreserved-id-macro warns on
#define __need_size_t
which is more or less public api for glibc headers. Since this warning isn't
motivated by a standard, remove it.
(See also r223114 for a previous follow-up to r224012.)
llvm-svn: 224371
Kostya Serebryany [Tue, 16 Dec 2014 21:06:07 +0000 (21:06 +0000)]
[asan] trying to fix Mac build
llvm-svn: 224370
Rafael Espindola [Tue, 16 Dec 2014 21:00:30 +0000 (21:00 +0000)]
Put static local variables of inline functions in the function comdat.
The variable (and the GV) is only ever used if the function is. Putting it
in the function's comdat make it easier for the linker to discard them.
The motivating example is
struct S {
static const int x;
};
// const int S::x = 42;
inline const int *f() {
static const int y = S::x;
return &y;
}
const int *g() { return f(); }
With S::x commented out, _ZZ1fvE1y is a variable with a guard variable
that is initialized by f.
With S::x present, _ZZ1fvE1y is a constant.
llvm-svn: 224369
Kevin Enderby [Tue, 16 Dec 2014 21:00:25 +0000 (21:00 +0000)]
Fix another use of PRIx32 that should have been PRIx64.
llvm-svn: 224368
Colin LeMahieu [Tue, 16 Dec 2014 20:57:56 +0000 (20:57 +0000)]
[Hexagon] Adding bit count and twiddling instructions.
llvm-svn: 224367
Hans Wennborg [Tue, 16 Dec 2014 20:46:05 +0000 (20:46 +0000)]
Fix Win build after r224353: void function returning zero.
llvm-svn: 224366
Colin LeMahieu [Tue, 16 Dec 2014 20:40:23 +0000 (20:40 +0000)]
[Hexagon] Adding asr/lsr/asl reg/imm, asl with saturation, asr with rounding. Doubleword abs/neg/not. Interleave and deinterleave instructions.
llvm-svn: 224365
Renato Golin [Tue, 16 Dec 2014 20:31:37 +0000 (20:31 +0000)]
Fixes wrong -march=aarch64 option in compiler-rt
llvm-svn: 224362
Frederic Riss [Tue, 16 Dec 2014 20:22:11 +0000 (20:22 +0000)]
[dsymutil] Pass the verbosity flag down to the processing. NFC for now.
llvm-svn: 224361
Frederic Riss [Tue, 16 Dec 2014 20:21:34 +0000 (20:21 +0000)]
[dsymutil] Avoid calling getStringTableData() for each symbol. NFC.
llvm-svn: 224360
JF Bastien [Tue, 16 Dec 2014 20:15:45 +0000 (20:15 +0000)]
x86-32: PUSHF/POPF use/def EFLAGS
Summary: As a side-quest for D6629 jvoung pointed out that I should use -verify-machineinstrs and this found a bug in x86-32's handling of EFLAGS for PUSHF/POPF. This patch fixes the use/def, and adds -verify-machineinstrs to all x86 tests which contain 'EFLAGS'. One exception: this patch leaves inline-asm-fpstack.ll as-is because it fails -verify-machineinstrs in a way unrelated to EFLAGS. This patch also modifies cmpxchg-clobber-flags.ll along the lines of what D6629 already does by also testing i386.
Test Plan: ninja check
Reviewers: t.p.northover, jvoung
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D6687
llvm-svn: 224359
Jacques Pienaar [Tue, 16 Dec 2014 20:12:38 +0000 (20:12 +0000)]
Consider calls from implict host device functions as valid in SemaCUDA.
In SemaCUDA all implicit functions were considered host device, this led to
errors such as the following code snippet failing to compile:
struct Copyable {
const Copyable& operator=(const Copyable& x) { return *this; }
};
struct Simple {
Copyable b;
};
void foo() {
Simple a, b;
a = b;
}
Above the implicit copy assignment operator was inferred as host device but
there was only a host assignment copy defined which is an error in device
compilation mode.
Differential Revision: http://reviews.llvm.org/D6565
llvm-svn: 224358
Peter Collingbourne [Tue, 16 Dec 2014 20:04:55 +0000 (20:04 +0000)]
Use the object's package to mangle method names, rather than the receiver's package
If we use the receiver's package, we can end up with identical manglings
for different functions. Consider:
package p
type U struct{}
func (U) f()
package q
import "p"
type T struct { p.U }
func (T) f()
The method set of *T has two synthetic methods named (*T).f(); one forwards to
(T).f(), and the other to (U).f(). Previously, we were distinguishing them
by the receiver's package, and in this case because both methods have the
same receiver, they received the same name.
The methods are correctly distinguished by the package owning the identifier
"f", which is available via f.Object().Pkg().
Differential Revision: http://reviews.llvm.org/D6673
llvm-svn: 224357
Rafael Espindola [Tue, 16 Dec 2014 19:29:29 +0000 (19:29 +0000)]
Use CastInst::castIsValid to simplify the verifier.
Also delete a dead member variable.
llvm-svn: 224356
Matt Arsenault [Tue, 16 Dec 2014 19:16:17 +0000 (19:16 +0000)]
NVPTX: Remove duplicate of AsmPrinter::lowerConstant
llvm-svn: 224355
Matt Arsenault [Tue, 16 Dec 2014 19:16:14 +0000 (19:16 +0000)]
Move lowerConstant to AsmPrinter
This was a static function before, and NVPTX duplicated it
because it wasn't exposed.
llvm-svn: 224354
Kostya Serebryany [Tue, 16 Dec 2014 19:13:01 +0000 (19:13 +0000)]
[asan] new flag: hard_rss_limit_mb
llvm-svn: 224353
Enrico Granata [Tue, 16 Dec 2014 19:10:37 +0000 (19:10 +0000)]
In C++, it's #include not #import
llvm-svn: 224352
Quentin Colombet [Tue, 16 Dec 2014 19:09:03 +0000 (19:09 +0000)]
[CodeGenPrepare] Move sign/zero extensions near loads using type promotion.
This patch extends the optimization in CodeGenPrepare that moves a sign/zero
extension near a load when the target can combine them. The optimization may
promote any operations between the extension and the load to make that possible.
Although this optimization may be beneficial for all targets, in particular
AArch64, this is enabled for X86 only as I have not benchmarked it for other
targets yet.
** Context **
Most targets feature extended loads, i.e., loads that perform a zero or sign
extension for free. In that context it is interesting to expose such pattern in
CodeGenPrepare so that the instruction selection pass can form such loads.
Sometimes, this pattern is blocked because of instructions between the load and
the extension. When those instructions are promotable to the extended type, we
can expose this pattern.
** Motivating Example **
Let us consider an example:
define void @foo(i8* %addr1, i32* %addr2, i8 %a, i32 %b) {
%ld = load i8* %addr1
%zextld = zext i8 %ld to i32
%ld2 = load i32* %addr2
%add = add nsw i32 %ld2, %zextld
%sextadd = sext i32 %add to i64
%zexta = zext i8 %a to i32
%addza = add nsw i32 %zexta, %zextld
%sextaddza = sext i32 %addza to i64
%addb = add nsw i32 %b, %zextld
%sextaddb = sext i32 %addb to i64
call void @dummy(i64 %sextadd, i64 %sextaddza, i64 %sextaddb)
ret void
}
As it is, this IR generates the following assembly on x86_64:
[...]
movzbl (%rdi), %eax # zero-extended load
movl (%rsi), %es # plain load
addl %eax, %esi # 32-bit add
movslq %esi, %rdi # sign extend the result of add
movzbl %dl, %edx # zero extend the first argument
addl %eax, %edx # 32-bit add
movslq %edx, %rsi # sign extend the result of add
addl %eax, %ecx # 32-bit add
movslq %ecx, %rdx # sign extend the result of add
[...]
The throughput of this sequence is 7.45 cycles on Ivy Bridge according to IACA.
Now, by promoting the additions to form more extended loads we would generate:
[...]
movzbl (%rdi), %eax # zero-extended load
movslq (%rsi), %rdi # sign-extended load
addq %rax, %rdi # 64-bit add
movzbl %dl, %esi # zero extend the first argument
addq %rax, %rsi # 64-bit add
movslq %ecx, %rdx # sign extend the second argument
addq %rax, %rdx # 64-bit add
[...]
The throughput of this sequence is 6.15 cycles on Ivy Bridge according to IACA.
This kind of sequences happen a lot on code using 32-bit indexes on 64-bit
architectures.
Note: The throughput numbers are similar on Sandy Bridge and Haswell.
** Proposed Solution **
To avoid the penalty of all these sign/zero extensions, we merge them in the
loads at the beginning of the chain of computation by promoting all the chain of
computation on the extended type. The promotion is done if and only if we do not
introduce new extensions, i.e., if we do not degrade the code quality.
To achieve this, we extend the existing “move ext to load” optimization with the
promotion mechanism introduced to match larger patterns for addressing mode
(r200947).
The idea of this extension is to perform the following transformation:
ext(promotableInst1(...(promotableInstN(load))))
=>
promotedInst1(...(promotedInstN(ext(load))))
The promotion mechanism in that optimization is enabled by a new TargetLowering
switch, which is off by default. In other words, by default, the optimization
performs the “move ext to load” optimization as it was before this patch.
** Performance **
Configuration: x86_64: Ivy Bridge fixed at 2900MHz running OS X 10.10.
Tested Optimization Levels: O3/Os
Tests: llvm-testsuite + externals.
Results:
- No regression beside noise.
- Improvements:
CINT2006/473.astar: ~2%
Benchmarks/PAQ8p: ~2%
Misc/perlin: ~3%
The results are consistent for both O3 and Os.
<rdar://problem/
18310086>
llvm-svn: 224351
Kevin Enderby [Tue, 16 Dec 2014 18:58:11 +0000 (18:58 +0000)]
Fix the arm build bots for a test that was added. A printing routine was incorrectly using PRIx32
when it should have been using PRIx64 for the value that was passed as uint64_t .
llvm-svn: 224350
Robert Khasanov [Tue, 16 Dec 2014 18:24:07 +0000 (18:24 +0000)]
[AVX512] Enable integer arithmetic lowering for AVX512BW/VL subsets.
Added lowering tests.
llvm-svn: 224349
Evgeny Astigeevich [Tue, 16 Dec 2014 18:16:17 +0000 (18:16 +0000)]
On behalf of Matthew Wahab:
An instruction alias defined with InstAlias and an optional operand in the
middle of the AsmString field, "..${a} <operands>", would get the final
"}" printed in the instruction disassembly. This wouldn't happen if the optional
operand appeared as the last item in the AsmString which is how the current
backends avoided the problem.
There don't appear to be any tests for this part of Tablegen but it passes the
pre-commit tests. Manually tested the change by enabling the generic alias
printer in the ARM backend and checking the output.
Differential Revision: http://reviews.llvm.org/D6529
llvm-svn: 224348
Ahmed Bougacha [Tue, 16 Dec 2014 18:05:28 +0000 (18:05 +0000)]
[MC] Reset the MCInst in the matcher function before adding opcode/operands.
On X86, the Intel asm parser tries to match all memory operand sizes when
none is explicitly specified. For LEA, which doesn't really have a memory
operand (just a pointer one), this results in multiple successful matches,
one for each memory size. There's no error because it's same opcode, so
really, it's just one match. However, the tablegen'd matcher function
adds opcode/operands to the passed MCInst, and this results in multiple
duplicated operands.
This commit clears the MCInst in the tablegen'd matcher function.
We sometimes clear it when the match failed, so there's no expectation of
keeping the previous content anyway.
Differential Revision: http://reviews.llvm.org/D6670
llvm-svn: 224347
Colin LeMahieu [Tue, 16 Dec 2014 17:44:49 +0000 (17:44 +0000)]
[Hexagon] Adding absolute value, and negate with saturation
llvm-svn: 224346
Zachary Turner [Tue, 16 Dec 2014 16:48:19 +0000 (16:48 +0000)]
Delete MSVC intermediate files on "make clean" from tests.
lld-link shells out to MSVC for certain types of work, and this
results in some MSVC output files being generated even though
clang / lld are the compiler / linker. This is expected, so we
make sure to clean these output files on make clean.
llvm-svn: 224345
Sanjay Patel [Tue, 16 Dec 2014 16:30:01 +0000 (16:30 +0000)]
combine consecutive subvector 16-byte loads into one 32-byte load
This is a fix for PR21709 ( http://llvm.org/bugs/show_bug.cgi?id=21709 ).
When we have 2 consecutive 16-byte loads that are merged into one 32-byte vector,
we can use a single 32-byte load instead.
But we don't do this for SandyBridge / IvyBridge because they have slower 32-byte memops.
We also don't bother using 32-byte *integer* loads on a machine that only has AVX1 (btver2)
because those operands would have to be split in half anyway since there is no support for
32-byte integer math ops.
Differential Revision: http://reviews.llvm.org/D6492
llvm-svn: 224344
Colin LeMahieu [Tue, 16 Dec 2014 16:27:17 +0000 (16:27 +0000)]
[Hexagon] Adding saturate and swizzle instructions.
llvm-svn: 224343
Marshall Clow [Tue, 16 Dec 2014 16:22:43 +0000 (16:22 +0000)]
Re-commit the test for regex that I busted last night - now passes under ASAN
llvm-svn: 224342
Robert Khasanov [Tue, 16 Dec 2014 16:12:11 +0000 (16:12 +0000)]
[AVX512] Add a comment for avx512_broadcast_pat multiclass
llvm-svn: 224341
Colin LeMahieu [Tue, 16 Dec 2014 16:10:01 +0000 (16:10 +0000)]
[Hexagon] Removing old multiply defs and updating references to new versions.
llvm-svn: 224340
Vladimir Medic [Tue, 16 Dec 2014 15:29:12 +0000 (15:29 +0000)]
The single check for N64 inside MipsDisassemblerBase's subclasses is actually wrong. It should be testing for FeatureGP64bit.There are no functional changes.
llvm-svn: 224339
Zoran Jovanovic [Tue, 16 Dec 2014 14:59:10 +0000 (14:59 +0000)]
[mips][microMIPS] Implement SWP and LWP instructions
Differential Revision: http://reviews.llvm.org/D5667
llvm-svn: 224338
Aaron Ballman [Tue, 16 Dec 2014 14:04:11 +0000 (14:04 +0000)]
Fixing -Wsign-compare warnings; NFC.
llvm-svn: 224337
Vladimir Medic [Tue, 16 Dec 2014 13:02:25 +0000 (13:02 +0000)]
Add disassembler tests for mips4 platform. There are no functional changes.
llvm-svn: 224335
Elena Demikhovsky [Tue, 16 Dec 2014 11:50:42 +0000 (11:50 +0000)]
Masked Load and Store Intrinsics in loop vectorizer.
The loop vectorizer optimizes loops containing conditional memory
accesses by generating masked load and store intrinsics.
This decision is target dependent.
http://reviews.llvm.org/D6527
llvm-svn: 224334
Daniel Sanders [Tue, 16 Dec 2014 11:21:58 +0000 (11:21 +0000)]
[mips] Fix arguments-struct.ll for Windows and OSX hosts.
llvm-svn: 224333
Bradley Smith [Tue, 16 Dec 2014 10:59:27 +0000 (10:59 +0000)]
[ARM] Prevent PerformVCVTCombine from combining a vmul/vcvt with 8 lanes
This would result in a crash since the vcvt used does not support v8i32 types.
llvm-svn: 224332
Hafiz Abid Qadeer [Tue, 16 Dec 2014 10:20:35 +0000 (10:20 +0000)]
Fixed 2 typos in help.
llvm-svn: 224331
Elena Demikhovsky [Tue, 16 Dec 2014 09:10:08 +0000 (09:10 +0000)]
X86: Added FeatureVectorUAMem for all AVX architectures.
According to AVX specification:
"Most arithmetic and data processing instructions encoded using the VEX prefix and
performing memory accesses have more flexible memory alignment requirements
than instructions that are encoded without the VEX prefix. Specifically,
With the exception of explicitly aligned 16 or 32 byte SIMD load/store instructions,
most VEX-encoded, arithmetic and data processing instructions operate in
a flexible environment regarding memory address alignment, i.e. VEX-encoded
instruction with 32-byte or 16-byte load semantics will support unaligned load
operation by default. Memory arguments for most instructions with VEX prefix
operate normally without causing #GP(0) on any byte-granularity alignment
(unlike Legacy SSE instructions)."
The same for AVX-512.
This change does not affect anything right now, because only the "memop pattern fragment"
depends on FeatureVectorUAMem and it is not used in AVX patterns.
All AVX patterns are based on the "unaligned load" anyway.
llvm-svn: 224330
Alexey Bataev [Tue, 16 Dec 2014 08:01:48 +0000 (08:01 +0000)]
Renamed RefersToEnclosingLocal bitfield to RefersToCapturedVariable.
Bitfield RefersToEnclosingLocal of Stmt::DeclRefExprBitfields renamed to RefersToCapturedVariable to reflect latest changes introduced in commit 224323. Also renamed method Expr::refersToEnclosingLocal() to Expr::refersToCapturedVariable() and comments for constant arguments.
No functional changes.
llvm-svn: 224329
Duncan P. N. Exon Smith [Tue, 16 Dec 2014 07:45:05 +0000 (07:45 +0000)]
Remove 'metadata' from comments
llvm-svn: 224328
Duncan P. N. Exon Smith [Tue, 16 Dec 2014 07:40:31 +0000 (07:40 +0000)]
IR: Stop printing 'metadata' in Metadata::print()
Stop printing `metadata` in `Metadata::print()` and
`Metadata::printAsOperand()`.
llvm-svn: 224327
Mohit K. Bhakkad [Tue, 16 Dec 2014 07:11:08 +0000 (07:11 +0000)]
internal_stat for mips64
llvm-svn: 224326
Duncan P. N. Exon Smith [Tue, 16 Dec 2014 07:09:37 +0000 (07:09 +0000)]
IR: Make MDNode::dump() useful by adding addresses
It's horrible to inspect `MDNode`s in a debugger. All of their operands
that are `MDNode`s get dumped as `<badref>`, since we can't assign
metadata slots in the context of a `Metadata::dump()`. (Why not? Why
not assign numbers lazily? Because then each time you called `dump()`,
a given `MDNode` could have a different lazily assigned number.)
Fortunately, the C memory model gives us perfectly good identifiers for
`MDNode`. Add pointer addresses to the dumps, transforming this:
(lldb) e N->dump()
!{i32 662302, i32 26, <badref>, null}
(lldb) e ((MDNode*)N->getOperand(2))->dump()
!{i32 4, !"foo"}
into:
(lldb) e N->dump()
!{i32 662302, i32 26, <0x100706ee0>, null}
(lldb) e ((MDNode*)0x100706ee0)->dump()
!{i32 4, !"foo"}
and this:
(lldb) e N->dump()
0x101200248 = !{<badref>, <badref>, <badref>, <badref>, <badref>}
(lldb) e N->getOperand(0)
(const llvm::MDOperand) $0 = {
MD = 0x00000001012004e0
}
(lldb) e N->getOperand(1)
(const llvm::MDOperand) $1 = {
MD = 0x00000001012004e0
}
(lldb) e N->getOperand(2)
(const llvm::MDOperand) $2 = {
MD = 0x0000000101200058
}
(lldb) e N->getOperand(3)
(const llvm::MDOperand) $3 = {
MD = 0x00000001012004e0
}
(lldb) e N->getOperand(4)
(const llvm::MDOperand) $4 = {
MD = 0x0000000101200058
}
(lldb) e ((MDNode*)0x00000001012004e0)->dump()
!{}
(lldb) e ((MDNode*)0x0000000101200058)->dump()
!{null}
into:
(lldb) e N->dump()
!{<0x1012004e0>, <0x1012004e0>, <0x101200058>, <0x1012004e0>, <0x101200058>}
(lldb) e ((MDNode*)0x1012004e0)->dump()
!{}
(lldb) e ((MDNode*)0x101200058)->dump()
!{null}
llvm-svn: 224325
Duncan P. N. Exon Smith [Tue, 16 Dec 2014 07:08:19 +0000 (07:08 +0000)]
DebugInfo: Update testcase to actually check something
This test was missing a `Debug Info Version` so it's `not grep` was
passing vacuously. Update it to CHECK for something useful at the same
time so it doesn't bitrot quite so easily in the future.
llvm-svn: 224324
Alexey Bataev [Tue, 16 Dec 2014 07:00:22 +0000 (07:00 +0000)]
[OPENMP] Bugfix for processing of global variables in OpenMP regions.
Currently, if global variable is marked as a private OpenMP variable, the compiler crashes in debug version or generates incorrect code in release version. It happens because in the OpenMP region the original global variable is used instead of the generated private copy. It happens because currently globals variables are not captured in the OpenMP region.
This patch adds capturing of global variables iff private copy of the global variable must be used in the OpenMP region.
Differential Revision: http://reviews.llvm.org/D6259
llvm-svn: 224323
David Majnemer [Tue, 16 Dec 2014 06:31:17 +0000 (06:31 +0000)]
Sema: Don't crash converting to bool from _Atomic
Turning our _Atomic L-value into an R-value removes its _Atomic-ness.
However, we didn't update our 'FromType' which made
ScalarTypeToBooleanCastKind think we were trying to pass it a
non-scalar.
This fixes PR21836.
llvm-svn: 224322
Jason Molenda [Tue, 16 Dec 2014 06:20:30 +0000 (06:20 +0000)]
Temporarily disable CompactUnwindInfo::GetCompactUnwindInfoForFunction.
The compact unwind importer is getting the wrong unwind info for one
case that I found. I haven't been able to fix the problem tonight
and I don't want to leave TOT behaving incorrectly, so just ignore
compact unwind until I can get to the bottom of this.
llvm-svn: 224321
Nick Lewycky [Tue, 16 Dec 2014 06:12:01 +0000 (06:12 +0000)]
Improve handling of value dependent expressions in __attribute__((enable_if)), both in the condition expression and at the call site. Fixes PR20988!
llvm-svn: 224320
Saleem Abdulrasool [Tue, 16 Dec 2014 05:53:25 +0000 (05:53 +0000)]
ARM: diagnose deprecated syntax
The use of SP and PC in the register list for stores is deprecated on ARM
(ARM ARM A.8.8.199):
ARM deprecates the use of ARM instructions that include the SP or the PC in
the list.
Provide a deprecation warning from the assembler in the case that the syntax is
ever seen.
llvm-svn: 224319
Hal Finkel [Tue, 16 Dec 2014 05:51:41 +0000 (05:51 +0000)]
[PowerPC] Improve instruction selection bit-permuting operations (32-bit)
The PowerPC backend, somewhat embarrassingly, did not generate an
optimal-length sequence of instructions for a 32-bit bswap. While adding a
pattern for the bswap intrinsic to fix this would not have been terribly
difficult, doing so would not have addressed the real problem: we had been
generating poor code for many bit-permuting operations (by which I mean things
like byte-swap that permute the bits of one or more inputs around in various
ways). Here are some initial steps toward solving this deficiency.
Bit-permuting operations are represented, at the SDAG level, using ISD::ROTL,
SHL, SRL, AND and OR (mostly with constant second operands). Looking back
through these operations, we can build up a description of the bits in the
resulting value in terms of bits of one or more input values (and constant
zeros). For each bit, we compute the rotation amount from the original value,
and then group consecutive (value, rotation factor) bits into groups. Groups
sharing these attributes are then collected and sorted, and we can then
instruction select the entire permutation using a combination of masked
rotations (rlwinm), imm ands (andi/andis), and masked rotation inserts
(rlwimi).
The result is that instead of lowering an i32 bswap as:
rlwinm 5, 3, 24, 16, 23
rlwinm 4, 3, 24, 0, 7
rlwimi 4, 3, 8, 8, 15
rlwimi 5, 3, 8, 24, 31
rlwimi 4, 5, 0, 16, 31
we now produce:
rlwinm 4, 3, 8, 0, 31
rlwimi 4, 3, 24, 16, 23
rlwimi 4, 3, 24, 0, 7
and for the 'test6' example in the PowerPC/README.txt file:
unsigned test6(unsigned x) {
return ((x & 0x00FF0000) >> 16) | ((x & 0x000000FF) << 16);
}
we used to produce:
lis 4, 255
rlwinm 3, 3, 16, 0, 31
ori 4, 4, 255
and 3, 3, 4
and now we produce:
rlwinm 4, 3, 16, 24, 31
rlwimi 4, 3, 16, 8, 15
and, as a nice bonus, this fixes the FIXME in
test/CodeGen/PowerPC/rlwimi-and.ll.
This commit does not include instruction-selection for i64 operations, those
will come later.
llvm-svn: 224318
Justin Bogner [Tue, 16 Dec 2014 05:28:07 +0000 (05:28 +0000)]
Revert "Fix installheaders target's permissions"
The install of headers excludes the support directory, so these chmod
calls fail on non-existent directories, as seen on this bot:
http://lab.llvm.org:8080/green/job/clang-stage1-configure-RA_build/2801/console
This reverts commit r224300.
llvm-svn: 224317
David Majnemer [Tue, 16 Dec 2014 04:52:14 +0000 (04:52 +0000)]
AST: Fix the linkage of static vars in fn template specializations
We that static variables in function template specializations were
externally visible. The manglers assumed that externally visible static
variables were numbered in Sema. We would end up mangling static
variables in the same specialization with the same mangling number which
would give all of them the same name.
This fixes PR21904.
llvm-svn: 224316
Kuba Brecka [Tue, 16 Dec 2014 04:46:15 +0000 (04:46 +0000)]
Add an MACOS_VERSION_UNKNOWN_NEWER enum value for OS X versions above 10.10.
We recently had a broken version check because an newer OS X version is treated as MACOS_VERSION_UNKNOWN which is less than all the defined values. Let's have a separate enum value for unknown but newer versions, so the ">=" and "<=" version checks still work even in upcoming OS X releases.
Reviewed at http://reviews.llvm.org/D6137
llvm-svn: 224315
Saleem Abdulrasool [Tue, 16 Dec 2014 04:10:10 +0000 (04:10 +0000)]
ARM: 80-column
clang-format a function with an overly long string constant. NFC.
llvm-svn: 224314
Matthias Braun [Tue, 16 Dec 2014 04:03:38 +0000 (04:03 +0000)]
LiveRangeCalc: Rewrite subrange calculation
This changes subrange calculation to calculate subranges sequentially
instead of in parallel. The code is easier to understand that way and
addresses the code review issues raised about LiveOutData being
hard to understand/needing more comments by removing them :)
llvm-svn: 224313
Rafael Espindola [Tue, 16 Dec 2014 03:10:29 +0000 (03:10 +0000)]
Remove the last unnecessary member variable of mapped_file_region. NFC.
llvm-svn: 224312
Rafael Espindola [Tue, 16 Dec 2014 02:53:35 +0000 (02:53 +0000)]
Convert a member variable to a local variable. NFC.
llvm-svn: 224311
Enrico Granata [Tue, 16 Dec 2014 02:34:13 +0000 (02:34 +0000)]
Instead of rolling our own, use the C++11 sanctioned solution
llvm-svn: 224310
Rafael Espindola [Tue, 16 Dec 2014 02:19:26 +0000 (02:19 +0000)]
Remove unused member and simplify. NFC.
llvm-svn: 224309
Alexey Samsonov [Tue, 16 Dec 2014 01:52:55 +0000 (01:52 +0000)]
Fix data symbolization with libbacktrace. Patch by Jakub Jelinek!
llvm-svn: 224308
Rafael Espindola [Tue, 16 Dec 2014 01:43:41 +0000 (01:43 +0000)]
Start adding thin archive support.
This is just sufficient for 'ar t' to work.
llvm-svn: 224307
Greg Clayton [Tue, 16 Dec 2014 01:33:17 +0000 (01:33 +0000)]
If a binary was stripped we sometimes didn't show the ivars of an Objective C class correctly. Now we do as we consult the runtime data for the class so we don't have to have a symbol in the symbol table.
Fixed:
1 - try the symbol table symbol for an ObjC ivar and use it if available
2 - fall back to using the runtime data since it is slower to gather via memory read
3 - Fixed our hidden ivars test case to test this to ensure we don't regress
4 - split out a test case in the hidden ivars to cover only the part that was failing so we don't have an expected failure for all of the other content in the test.
<rdar://problem/
18882687>
llvm-svn: 224306
Alexey Samsonov [Tue, 16 Dec 2014 01:23:03 +0000 (01:23 +0000)]
[ASan] Allow to atomically modify malloc_context_size at runtime.
Summary:
Introduce __asan::malloc_context_size atomic that is used to determine
required malloc/free stack trace size. It is initialized with
common_flags()->malloc_context_size flag, but can later be overwritten
at runtime (e.g. when ASan is activated / deactivated).
Test Plan: regression test suite
Reviewers: kcc, eugenis
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D6645
llvm-svn: 224305
Jonathan Roelofs [Tue, 16 Dec 2014 01:18:11 +0000 (01:18 +0000)]
Appease the c++14 buildbots
llvm-svn: 224304
Hans Wennborg [Tue, 16 Dec 2014 01:15:01 +0000 (01:15 +0000)]
Clarify the code in checkDLLAttribute()
Update the comments to make it more clear what's going on, and address
Richard's comments from PR21718. This doesn't fix that bug, but hopefully
makes the code easier to understand.
llvm-svn: 224303
Kevin Enderby [Tue, 16 Dec 2014 01:14:45 +0000 (01:14 +0000)]
Fix a bug in llvm-objdump’s -private-headers for 32-bit Mach-O files
printing the section header. And add some tests for this for 32-bit files.
llvm-svn: 224302
Marshall Clow [Tue, 16 Dec 2014 00:59:59 +0000 (00:59 +0000)]
Comment out the breaking tests until I figure out what's going on here.
llvm-svn: 224301
Jonathan Roelofs [Tue, 16 Dec 2014 00:48:13 +0000 (00:48 +0000)]
Fix installheaders target's permissions
llvm-svn: 224300
David Majnemer [Tue, 16 Dec 2014 00:46:30 +0000 (00:46 +0000)]
Sema: Check value dependent casts when possible
We know that const_cast<char *>((void)Something) is ill-formed, even if
'Something' is dependent because you can't cast from void to a pointer
type.
This fixes PR21845.
llvm-svn: 224299
Marshall Clow [Tue, 16 Dec 2014 00:46:23 +0000 (00:46 +0000)]
Once more w/o the typo.
llvm-svn: 224298
Marshall Clow [Tue, 16 Dec 2014 00:45:47 +0000 (00:45 +0000)]
Fix the literal string that I said would be six elements long to actually be six elements long. Octal. Sheesh.
llvm-svn: 224297
Marshall Clow [Tue, 16 Dec 2014 00:30:07 +0000 (00:30 +0000)]
Add test to ensure that iterator_traits<NotAnIterator> doesn't have a value type
llvm-svn: 224295
Adrian Prantl [Tue, 16 Dec 2014 00:20:49 +0000 (00:20 +0000)]
ARM/AArch64: Attach the FrameSetup MIFlag to CFI instructions.
Debug info marks the first instruction without the FrameSetup flag
as being the end of the function prologue. Any CFI instructions in the
middle of the function prologue would cause debug info to end the prologue
too early and worse, attach the line number of the CFI instruction, which
incidentally is often 0.
llvm-svn: 224294
Colin LeMahieu [Tue, 16 Dec 2014 00:07:24 +0000 (00:07 +0000)]
[Hexagon] Adding doubleword multiplies with and without accumulation.
llvm-svn: 224293
Marshall Clow [Mon, 15 Dec 2014 23:57:56 +0000 (23:57 +0000)]
Implement LWG 2217 - operator==(sub_match, string) slices on embedded '\0's
llvm-svn: 224292
Michael Ilseman [Mon, 15 Dec 2014 23:41:21 +0000 (23:41 +0000)]
Sink the isa into the assert
llvm-svn: 224291
Enrico Granata [Mon, 15 Dec 2014 23:36:23 +0000 (23:36 +0000)]
Now that AddressOf() does sane things with const results, this check is wrong. Since this is actually quite orthogonal to what this test is all about, actually get rid of the assertions
llvm-svn: 224290
Colin LeMahieu [Mon, 15 Dec 2014 23:29:37 +0000 (23:29 +0000)]
[Hexagon] Adding halfword to doubleword multiplies.
llvm-svn: 224289
Colin LeMahieu [Mon, 15 Dec 2014 23:19:07 +0000 (23:19 +0000)]
[Hexagon] Adding logical-logical accumulation instructions and tests.
llvm-svn: 224288
Reid Kleckner [Mon, 15 Dec 2014 23:16:32 +0000 (23:16 +0000)]
Diagnose function template definitions inside functions
The parser can only be tricked into parsing a function template
definition by inserting a typename keyword before the function template
declaration. This used to make us crash, and now it's fixed.
While here, remove an unneeded boolean parameter from ParseDeclGroup.
This boolean always corresponded to non-typedef declarators at file
scope. ParseDeclGroup already has precise diagnostics for the function
definition typedef case, so we can let that through.
Fixes PR21839.
llvm-svn: 224287
Kostya Serebryany [Mon, 15 Dec 2014 23:02:57 +0000 (23:02 +0000)]
[asan] introduce __sanitizer_set_death_callback, deprecate __asan_set_death_callback
llvm-svn: 224286
Sanjoy Das [Mon, 15 Dec 2014 22:50:15 +0000 (22:50 +0000)]
Teach ScalarEvolution to exploit min and max expressions when proving
isKnownPredicate.
The motivation for this change is to optimize away checks in loops
like this:
limit = min(t, len)
for (i = 0 to limit)
if (i >= len || i < 0) throw_array_of_of_bounds();
a[i] = ...
Differential Revision: http://reviews.llvm.org/D6635
llvm-svn: 224285
Simon Pilgrim [Mon, 15 Dec 2014 22:45:48 +0000 (22:45 +0000)]
Added missing tests for X86vzmovl folding. NFC.
llvm-svn: 224284
JF Bastien [Mon, 15 Dec 2014 22:34:58 +0000 (22:34 +0000)]
x86: Emit LOCK prefix after DATA16
Summary: x86 allows either ordering for the LOCK and DATA16 prefixes, but using GCC+GAS leads to different code generation than using LLVM. This change matches the order that GAS emits the x86 prefixes when a semicolon isn't used in inline assembly (see tc-i386.c comment before define LOCK_PREFIX), and helps simplify tooling that operates on the instruction's byte sequence (such as NaCl's validator). This change shouldn't have any performance impact.
Test Plan: ninja check
Reviewers: craig.topper, jvoung
Subscribers: jfb, llvm-commits
Differential Revision: http://reviews.llvm.org/D6630
llvm-svn: 224283
Colin LeMahieu [Mon, 15 Dec 2014 22:10:37 +0000 (22:10 +0000)]
[Hexagon] Adding a number of additional multiply forms with tests.
llvm-svn: 224282
Michael Ilseman [Mon, 15 Dec 2014 21:47:09 +0000 (21:47 +0000)]
Clean up warning about unused variable
llvm-svn: 224281
Duncan P. N. Exon Smith [Mon, 15 Dec 2014 21:43:20 +0000 (21:43 +0000)]
Hand-modify a testcase (still PR21532)
Bot was still tripping [1] on a testcase the upgrade script didn't
handle in 224269. This is still fallout from r224257.
[1]: http://lab.llvm.org:8011/builders/polly-amd64-linux/builds/25435
llvm-svn: 224280
Roman Divacky [Mon, 15 Dec 2014 21:41:59 +0000 (21:41 +0000)]
Silene -Wreorder warning.
llvm-svn: 224279