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Author SHA1 Message Date
Dan Gohman
d88735e805 Introduce a new tool_output_file class, which extends raw_ostream with 
functionality that most command-line tools need: ensuring that the
output file gets deleted if the tool is interrupted or encounters an
error.

llvm-svn: 111595
 2010-08-20 00:48:10 +00:00
Dale Johannesen
579b1bef32 Do not assert when reading an exponent out of range. 
llvm-svn: 111534
 2010-08-19 17:58:35 +00:00
Dan Gohman
95e334dbca Make raw_fd_ostream consider itself the owner of STDOUT_FILENO when 
constructed with an output filename of "-". In particular, allow the
file descriptor to be closed, and close the file descriptor in the
destructor if it hasn't been explicitly closed already, to ensure
that any write errors are detected.

llvm-svn: 111436
 2010-08-18 22:26:19 +00:00
Dan Gohman
b1aa643484 Tidy. 
llvm-svn: 111432
 2010-08-18 22:04:43 +00:00
Dan Gohman
95cda1f1ef Revert r111321. This doesn't fix a problem. 
llvm-svn: 111339
 2010-08-18 01:34:52 +00:00
Chris Lattner
ba9f26fade stomp some more undefined behavior, PR7775. 
llvm-svn: 111337
 2010-08-18 00:33:47 +00:00
Chris Lattner
116d5c1431 include config.h to get config params, hopefully unbreaking mingw builder. 
llvm-svn: 111325
 2010-08-17 23:22:10 +00:00
Chris Lattner
1657977d0d Fix the rest of rdar://8318441 which happens when a raw_fd_ostream 
(e.g. errs()) fails in close() due to (e.g.) a broken pipe.  As
previously written, the had_error() flag would get set and then
the raw_ostream dtor would report a fatal error.  There is nothing
the client can do about this and we have no way to report the error,
so just eat it.

llvm-svn: 111321
 2010-08-17 23:11:56 +00:00
Chris Lattner
659fd704e8 report_fatal_error can't use errs(), because errs() can call 
into report_fatal_error.  Just blast the string to stderr with write(2)
and hope for the best!  Part of rdar://8318441

llvm-svn: 111320
 2010-08-17 23:03:53 +00:00
Daniel Dunbar
e88f283f80 CrashRecovery: Clear the current context on the first crash, to avoid re-entering it if the cleanup code crashes. 
llvm-svn: 111309
 2010-08-17 22:32:39 +00:00
Daniel Dunbar
b5312b0f26 CrashRecovery: Add CrashRecoveryContext::GetCurrent(), so clients can find the active context from anywhere. 
llvm-svn: 111308
 2010-08-17 22:32:37 +00:00
Daniel Dunbar
0fc35d7284 CrashRecovery: Make CrashRecoveryContext static methods thread safe. 
llvm-svn: 111307
 2010-08-17 22:32:34 +00:00
Jim Grosbach
4cf3acbde6 remove trailing whitespace 
llvm-svn: 111254
 2010-08-17 17:37:22 +00:00
Dan Gohman
06963ff7c4 Add hooks to FoldingSetTrait to allow specializations to provide 
implementations of equality comparison and hash computation. This
can be used to optimize node lookup by avoiding creating lots of
temporary ID values just for hashing and comparison purposes.

llvm-svn: 111130
 2010-08-16 15:30:39 +00:00
Dan Gohman
4446294688 Reverse the order of GetNodeProfile's arguments, for consistency 
with FoldingSetTrait::Profile.

llvm-svn: 111127
 2010-08-16 14:53:42 +00:00
Duncan Sands
6f5776e1d2 Add a 'normalize' method to the Triple class, which takes a mucked up 
target triple and straightens it out.  This does less than gcc's script
config.sub, for example it turns i386-mingw32 into i386--mingw32 not
i386-pc-mingw32, but it does a decent job of turning funky triples into
something that the rest of the Triple class can understand.  The plan
is to use this to canonicalize triple's when they are first provided
by users, and have the rest of LLVM only deal with canonical triples.
Once this is done the special case workarounds in the Triple constructor
can be removed, making the class more regular and easier to use.  The
comments and unittests for the Triple class are already adjusted in this
patch appropriately for this brave new world of increased uniformity.

llvm-svn: 110909
 2010-08-12 11:31:39 +00:00
Nick Lewycky
90e835b327 Clean up ConstantRange a bit: 
- remove ashr which never worked.
 - fix lshr and shl and add tests.
 - remove dead function "intersect1Wrapped".
 - add a new sub method to subtract ranges, with test.

llvm-svn: 110861
 2010-08-11 22:04:36 +00:00
Eric Christopher
bdc651b7c3 Fix a couple of warnings. 
llvm-svn: 110527
 2010-08-08 00:00:34 +00:00
Benjamin Kramer
a7febd985f Roll back my last two commits, valgrind complains. 
llvm-svn: 110518
 2010-08-07 13:27:41 +00:00
Benjamin Kramer
70df356537 Kill rarely used std::sort. 
llvm-svn: 110516
 2010-08-07 12:37:00 +00:00
Owen Anderson
d17104afda Remove layering violation. 
llvm-svn: 110505
 2010-08-07 06:01:13 +00:00
Owen Anderson
e59c4411b3 Add an inverse() method to ConstantRange. 
llvm-svn: 110504
 2010-08-07 05:47:46 +00:00
Owen Anderson
31ced50119 Add a convenience constructor. 
llvm-svn: 110493
 2010-08-07 00:42:06 +00:00
Chris Lattner
aa6eb3d13d avoid undef behavior on minint, fixing PR7783. 
llvm-svn: 110114
 2010-08-03 16:41:24 +00:00
Daniel Dunbar
c97e760282 Fix -Wmissing-field-initializers warnings. 
llvm-svn: 109872
 2010-07-30 17:49:04 +00:00
Daniel Dunbar
d516b0a1bd CrashRecovery: Use ThreadLocal::erase() instead of set(0). 
llvm-svn: 109752
 2010-07-29 15:24:21 +00:00
Daniel Dunbar
d62252d9f8 Make sure to include config.h, to pickup LLVM_ON_WIN32. 
llvm-svn: 109721
 2010-07-29 01:52:04 +00:00
Daniel Dunbar
a5b23b4df1 CrashRecoveryContext: Add a simple POSIX implementation. 
- This works, but won't handle crashes on stack overflow, or signals delivered
   to a thread other than the one that crashed. The latter is particular annoying
   on Darwin, because SIGABRT tends to go to the main thread.

llvm-svn: 109717
 2010-07-29 01:21:47 +00:00
Douglas Gregor
4e0ad2b35b Unbreak my CMake build, say you'll compile for me again... 
llvm-svn: 109598
 2010-07-28 17:17:46 +00:00
Daniel Dunbar
4cf25fa76a Support: Add CrashRecoveryContext helper object. 
- Designed as a simple wrapper to allow clients to attempt to catch crashes
   (memory errors, assertion violations, etc.) and do some kind of recovery.

 - Currently doesn't actually attempt to catch crashes.

llvm-svn: 109586
 2010-07-28 15:40:20 +00:00
Benjamin Kramer
da3e6cdb26 Don't pass StringRef by reference. 
llvm-svn: 108366
 2010-07-14 22:38:02 +00:00
Chris Lattner
96566c78ef add some triple for minix, patch by Kees van Reeuwijk from PR7582 
llvm-svn: 107785
 2010-07-07 15:52:27 +00:00
Duncan Sands
de6d3111d0 Rather than giving SmallPtrSetImpl a member field SmallArray which is magically 
replaced by a bigger array in SmallPtrSet (by overridding it), instead just use a
pointer to the start of the storage, and have SmallPtrSet pass in the value to use.
This has the disadvantage that SmallPtrSet becomes bigger by one pointer.  It has
the advantage that it no longer uses tricky C++ rules, and is clearly correct while
I'm not sure the previous version was.  This was inspired by g++-4.6 pointing out
that SmallPtrSetImpl was writing off the end of SmallArray, which it was.  Since
SmallArray is replaced with a bigger array in SmallPtrSet, the write was still to
valid memory.  But it was writing off the end of the declared array type - sounds
kind of dubious to me, like it sounded dubious to g++-4.6.  Maybe g++-4.6 is wrong
and this construct is perfectly valid and correctly compiled by all compilers, but
I think it is better to avoid the whole can of worms by avoiding this construct.

llvm-svn: 107285
 2010-06-30 15:02:37 +00:00
Eric Christopher
40f544b62c Fix thinko. 
llvm-svn: 107042
 2010-06-28 18:33:48 +00:00
Eric Christopher
bb7e1bfb0c Pull in the libCrashReporterClient.a information with a warning comment. 
Remove library check and regenerate configure.

llvm-svn: 107028
 2010-06-28 18:25:51 +00:00
Benjamin Kramer
b36c7df69c Rewrite MemoryBuffer::getSTDIN to use read(2) and a SmallVector buffer. 
llvm-svn: 106856
 2010-06-25 16:07:18 +00:00
Benjamin Kramer
1d187ed03e Bring back the empty vector workaround I removed in r106839. Looks like MSVC needs it. 
llvm-svn: 106841
 2010-06-25 12:51:01 +00:00
Benjamin Kramer
afe7228ede Tweak MemoryBuffer to allocate the class itself, the name and possibly the 
buffer in the same chunk of memory.

2 less mallocs for every uninitialized MemoryBuffer and 1 less malloc for every
MemoryBuffer pointing to a memory range translate into 20% less mallocs on
clang -cc1 -Eonly Cocoa_h.m.

llvm-svn: 106839
 2010-06-25 11:50:40 +00:00
Dan Gohman
abeebe353c Add overloads for getFile and getFileOrSTDIN which take a const char * 
instead of a StringRef, avoiding the need to copy the string in the
common case.

llvm-svn: 106754
 2010-06-24 16:25:50 +00:00
Eric Christopher
835fc55fd0 Look for and use a different darwin crash reporter library. 
llvm-svn: 106576
 2010-06-22 21:01:04 +00:00
Dan Gohman
ff9e611537 Add an explicit keyword. 
llvm-svn: 106538
 2010-06-22 13:53:29 +00:00
Benjamin Kramer
5d4a43151c Use calloc instead of new/memset, it is more efficient when the set is very large. 
llvm-svn: 106390
 2010-06-19 17:00:31 +00:00
Dan Gohman
6c6e9a45ff Give NamedRegionTimer an Enabled flag, allowing all its clients to 
switch from this:

  if (TimePassesIsEnabled) {
    NamedRegionTimer T(Name, GroupName);
    do_something();
  } else {
    do_something(); // duplicate the code, this time without a timer!
  }

to this:

  {
    NamedRegionTimer T(Name, GroupName, TimePassesIsEnabled);
    do_something();
  }

llvm-svn: 106285
 2010-06-18 15:56:31 +00:00
Jason Molenda
830bbc15f4 Add the entire range of DW_OP_lit[0..31], DW_OP_reg[0..31], and 
DW_OP_breg[0..31] to Dwarf.h.

Add "DW_" prefix to the llvm::dwarf::*String methods which did not
already have them in Dwarf.cpp.

llvm-svn: 106197
 2010-06-17 01:23:24 +00:00
Daniel Dunbar
1933971a3a fpcmp: Fix bug where fpcmp wouldn't early exit when files obviously differ and 
no tolerance is set.

llvm-svn: 106033
 2010-06-15 19:20:30 +00:00
Daniel Dunbar
1412c49c07 fpcmp: Fix a possible infinite loop when comparing something like: 
1..19 ok
to
  1..20 o k
(yes, the odd space is necessary).

llvm-svn: 106032
 2010-06-15 19:20:28 +00:00
Daniel Dunbar
a29cd98147 Use const_iterator where appropriate. 
llvm-svn: 105620
 2010-06-08 17:21:57 +00:00
Daniel Dunbar
039adfc699 DeltaAlgorithm: Tweak split to split by first/second half instead of even/odd, since adjacent changes are more likely to be related. 
llvm-svn: 105613
 2010-06-08 16:21:26 +00:00
Daniel Dunbar
956f97134b ADT: Add DAGDeltaAlgorithm, which is a DAG minimization algorithm built on top of the standard 'delta debugging' algorithm. 
- This can give substantial speedups in the delta process for inputs we can construct dependency information for.

llvm-svn: 105612
 2010-06-08 16:21:22 +00:00
Benjamin Kramer
d62b29412b Use realloc instead of malloc+memcpy when growing a POD SmallVector. A smart 
realloc implementation can try to expand the allocated memory block in-place,
avoiding the copy.

llvm-svn: 105605
 2010-06-08 11:44:30 +00:00
Dan Gohman
6e97d8955f Minor code simplification. 
llvm-svn: 104959
 2010-05-28 16:50:23 +00:00
Dan Gohman
1c7843bad9 Fix a redundant-return warning. 
llvm-svn: 104958
 2010-05-28 16:50:01 +00:00
Dan Gohman
9789093ab7 Add basic error checking to MemoryBuffer::getSTDIN. 
llvm-svn: 104855
 2010-05-27 17:31:51 +00:00
Jakob Stoklund Olesen
1c0aa5f14a Add StringRef::compare_numeric and use it to sort TableGen register records. 
This means that our Registers are now ordered R7, R8, R9, R10, R12, ...
Not R1, R10, R11, R12, R2, R3, ...

llvm-svn: 104745
 2010-05-26 21:47:28 +00:00
Daniel Dunbar
38460e2596 Fix __crashreport_info__ declaration. 
llvm-svn: 104300
 2010-05-20 23:50:19 +00:00
Dan Gohman
434b54846d Add a comment explaining why this code uses Append mode. 
llvm-svn: 104095
 2010-05-19 01:21:34 +00:00
Dan Gohman
393fa6e0a2 Usage of O_NONBLOCK in bjam is now confirmed as a bug and fixed upstream. 
Update the comment.

llvm-svn: 104021
 2010-05-18 15:25:14 +00:00
Chris Lattner
a1f4042939 improve portability to systems that don't have round, patch by 
Evzen Muller!

llvm-svn: 103877
 2010-05-15 17:11:55 +00:00
Daniel Dunbar
00f50519b6 Add new configure option, --disable-timestamps, intended to turn off anything which would mess up binary/object comparisons. Currently: 
- Disables 'Built on ...' in 'foo --version'.
 - Disables timestamps from being embedded into .dir files.

llvm-svn: 103423
 2010-05-10 20:11:56 +00:00
Daniel Dunbar
ddfbf5658d Run interrupt routines as part of report_fatal_error, since we are failing 
ungracefully.

llvm-svn: 103334
 2010-05-08 02:10:36 +00:00
Dan Gohman
783a114a69 Handle the case where open(2) or close(2) is interrupted by a signal when 
automatic syscall restarting is disabled.

Also, fix the build on systems which don't define EWOULDBLOCK.

llvm-svn: 103158
 2010-05-06 02:06:20 +00:00
Dan Gohman
3a3eadef40 Handle EWOULDBLOCK as EAGAIN. And add a comment explaining why 
EAGAIN and EWOULDBLOCK are used here.

Also, handle the case where a write call is interrupted after
some data has already been written.

llvm-svn: 103153
 2010-05-06 01:27:36 +00:00
Chris Lattner
b9f858943a Implement rdar://7415680 - Twine integer support lacks greatness 
Microoptimize Twine's with unsigned and int to not pin their value to
the stack.  This saves stack space in common cases and allows mem2reg
in the caller.  A simple example is:

void foo(const Twine &);
void bar(int x) {
  foo("xyz: " + Twine(x));
}

Before:

__Z3bari:
	subq	$40, %rsp
	movl	%edi, 36(%rsp)
	leaq	L_.str3(%rip), %rax
	leaq	36(%rsp), %rcx
	leaq	8(%rsp), %rdi
	movq	%rax, 8(%rsp)
	movq	%rcx, 16(%rsp)
	movb	$3, 24(%rsp)
	movb	$7, 25(%rsp)
	callq	__Z3fooRKN4llvm5TwineE
	addq	$40, %rsp
	ret

After:

__Z3bari:
	subq	$24, %rsp
	leaq	L_.str3(%rip), %rax
	movq	%rax, (%rsp)
	movslq	%edi, %rax
	movq	%rax, 8(%rsp)
	movb	$3, 16(%rsp)
	movb	$7, 17(%rsp)
	leaq	(%rsp), %rdi
	callq	__Z3fooRKN4llvm5TwineE
	addq	$24, %rsp
	ret

It saves 16 bytes of stack and one instruction in this case.

llvm-svn: 103107
 2010-05-05 18:40:33 +00:00
Benjamin Kramer
8712466dd6 Try again if write(2) reports an recoverable error. 
This should fix mysteriously crashing boost regression tests when stderr is
managed by bjam (PR7043).

llvm-svn: 103085
 2010-05-05 15:17:47 +00:00
Devang Patel
2a21d92744 Fix typo. add a test case. 
llvm-svn: 101812
 2010-04-19 20:31:39 +00:00
Devang Patel
06123c1012 Add DW_AT_APPLE_omit_frame_ptr to encode -fomit-frame-pointer flag. 
llvm-svn: 101805
 2010-04-19 19:14:02 +00:00
Chris Lattner
f543d5e029 reduce indentation 
llvm-svn: 101692
 2010-04-18 03:35:23 +00:00
Dan Gohman
d48633d340 Fix a bunch of namespace polution. 
llvm-svn: 101376
 2010-04-15 17:08:50 +00:00
Benjamin Kramer
a4c5712b41 BumpPtrAllocator::Reset() doesn't need to allocate anything. (Thanks, Jakob) 
llvm-svn: 101138
 2010-04-13 16:38:06 +00:00
Benjamin Kramer
4ca6d372d5 Let BumpPtrAllocator lazily allocate the first slab. 
We have some code in llvm and clang where a BumpPtrAllocator is declared in a
class but never used in the common case. Stop wasting memory there.

llvm-svn: 101130
 2010-04-13 14:41:51 +00:00
Chris Lattner
72bc852ebe Fix PR6826: GraphWriter delete the generated file before "dotty" load it, 
patch by 'ether'.

llvm-svn: 101116
 2010-04-13 04:35:39 +00:00
Chris Lattner
9d77e5ba47 add minix support, patch by Kees van Reeuwijk! PR6797 
llvm-svn: 100895
 2010-04-09 20:45:04 +00:00
Chris Lattner
cd7b368e65 clean this up, fix std::min ambiguity on some platforms. 
llvm-svn: 100894
 2010-04-09 20:43:54 +00:00
Benjamin Kramer
3b7602b1fb Various MSVC warning fixes about truncated 64 bit shifts and const pointers passed to free. 
llvm-svn: 100767
 2010-04-08 15:25:57 +00:00
Chris Lattner
ea8b374616 rename llvm_install_error_handler -> install_fatal_error_handler 
and friends.

llvm-svn: 100717
 2010-04-07 23:12:29 +00:00
Chris Lattner
80b41881bc rename llvm::llvm_report_error -> llvm::report_fatal_error 
llvm-svn: 100709
 2010-04-07 22:58:41 +00:00
Chris Lattner
c83a42075b enhance SMDiagnostic to also maintain a pointer to the SourceMgr. 
Add a simplified constructor for clients that don't have locations
like "file not found" errors.

llvm-svn: 100538
 2010-04-06 18:06:18 +00:00
Chris Lattner
48d30a3011 give the SourceMgr object a cookie. 
llvm-svn: 100504
 2010-04-06 00:33:43 +00:00
Chris Lattner
117d05ca0e Give llvm::SourceMgr the ability to have a client-specified 
diagnostic handler.

llvm-svn: 100503
 2010-04-06 00:26:48 +00:00
Chris Lattner
269737461d stringref-ize the MemoryBuffer::get apis. This requires 
a co-committed clang patch.

llvm-svn: 100485
 2010-04-05 22:42:30 +00:00
Owen Anderson
3694d62450 Push const through the regex engine. Fixes some of the warnings in PR6616. 
llvm-svn: 100438
 2010-04-05 17:50:20 +00:00
Benjamin Kramer
1ef6689d58 Remove accidental include and add a comment. 
llvm-svn: 100107
 2010-04-01 14:39:55 +00:00
Benjamin Kramer
71eaf27165 Various improvements to MemoryBuffer::getFile: 
- Use a RAII object to close the FD.
- Use sys::StrError instead of thread-unsafe strerror calls.
- Recover gracefully if read returns zero. This works around an issue on
  DragonFlyBSD where /dev/null has an st_size of 136 but we can't read 136 bytes
  from it.

llvm-svn: 100106
 2010-04-01 14:35:22 +00:00
Benjamin Kramer
4b94ce229d Introduce SpecificBumpPtrAllocator, a wrapper for BumpPtrAllocator which allows 
only a single type of object to be allocated. Use it to make VNInfo destruction
typesafe.

llvm-svn: 99919
 2010-03-30 20:16:45 +00:00
Douglas Gregor
63f8158cff Introduce namespace-scope functions to enable LLVM statistics without 
passing the command-line parameter "-stats" and to print the resulting
statistics without calling llvm_shutdown().

llvm-svn: 99893
 2010-03-30 17:32:08 +00:00
Torok Edwin
df7c52143e Reapply r99881 with some fixes: only call destructor in releaseMemory! 
llvm-svn: 99883
 2010-03-30 11:17:48 +00:00
Torok Edwin
0994bb75ce Revert 99881, it brooke smooshlab's llvm-gcc-i386-darwin9. 
llvm-svn: 99882
 2010-03-30 10:25:08 +00:00
Torok Edwin
24db267b1e Introduce another Reset() method in BumpPtrAllocator that calls a destructor 
on all objects it has allocated, if they are all of the same size and alignment.
Use this to destruct all VNInfos allocated in LiveIntervalAnalysis (PR6653).

valnos is not reliable for this purpose, as seen in r99400
(which still leaked, and sometimes caused double frees).

llvm-svn: 99881
 2010-03-30 10:08:26 +00:00
Chris Lattner
fda28ada89 stringref'ize Timer apis 
llvm-svn: 99877
 2010-03-30 05:34:02 +00:00
Chris Lattner
966ab1ec5e finally, maintain a global list of timer groups, allowing us to 
implement TimerGroup::printAll, which prints and resets all active
timers.

llvm-svn: 99876
 2010-03-30 05:27:58 +00:00
Chris Lattner
ea827a1632 add a new TimerGroup::print method, and refactor away the bogus 
TimerGroup copy ctor and assignment operator.

llvm-svn: 99875
 2010-03-30 05:20:02 +00:00
Chris Lattner
76a4736a55 rename GetLibSupportInfoOutputFile -> CreateInfoOutputFile and 
have it always return a new stream to simplify clients.

llvm-svn: 99874
 2010-03-30 05:01:08 +00:00
Chris Lattner
3e11ba35b0 if a timergroup is destroyed before its timers, print times. 
llvm-svn: 99873
 2010-03-30 04:58:26 +00:00
Chris Lattner
2a254fd348 change TimerGroup to keep a linked list of active timers 
instead of just a count of them, and refactor the guts of
report printing out of removeTimer into its own method.
Refactor addTimerToPrint away.

llvm-svn: 99872
 2010-03-30 04:40:01 +00:00
Chris Lattner
4424043996 reapply my timer rewrite with a change for PassManager to store 
timers by pointer instead of by-value.

llvm-svn: 99871
 2010-03-30 04:03:22 +00:00
Chris Lattner
bbb637bacc revert r99862 which is causing FNT failures. 
llvm-svn: 99870
 2010-03-30 03:57:00 +00:00
Chris Lattner
65efe21d42 fairly major rewrite of various timing related stuff. 
llvm-svn: 99862
 2010-03-30 02:38:19 +00:00
Chris Lattner
92303f03c1 move a function into a more logical place in the file 
llvm-svn: 99842
 2010-03-29 21:34:06 +00:00
Chris Lattner
7e3957a646 remove support for per-time peak memory tracking, this 
isn't used by anyone and is better exposed as a non-per-timer 
thing.  Also, stop including System/Mutex.h in Timer.h

llvm-svn: 99841
 2010-03-29 21:28:41 +00:00
Chris Lattner
0c8d8cd921 various timer fixes: move operator= out of line, 
eliminate the per-timer lock (timers should be 
externally locked if needed), the info-output-stream
can never be dbgs(), so drop the check.  Make some
stuff private.

llvm-svn: 99839
 2010-03-29 21:24:52 +00:00
Chris Lattner
8cb292db38 s/.../. 
llvm-svn: 99834
 2010-03-29 20:40:19 +00:00
Chris Lattner
54f827b072 move code around and improve indentation, no functionality change. 
llvm-svn: 99831
 2010-03-29 20:35:01 +00:00
Chris Lattner
ebe18a8f38 improve portability to minix, patch by 
Kees van Reeuwijk for PR6704

llvm-svn: 99677
 2010-03-26 23:54:15 +00:00
Dan Gohman
177e2ae058 Fix minor style issues. 
llvm-svn: 99414
 2010-03-24 19:38:02 +00:00
Duncan Sands
9c60cc1c87 Fix comment typo. 
llvm-svn: 99392
 2010-03-24 09:05:14 +00:00
Dan Gohman
8f98d70a9b Add the ability to "intern" FoldingSetNodeID data into a 
BumpPtrAllocator-allocated region to allow it to be stored in a more
compact form and to avoid the need for a non-trivial destructor call.

Use this new mechanism in ScalarEvolution instead of
FastFoldingSetNode to avoid leaking memory in the case where a
FoldingSetNodeID uses heap storage, and to reduce overall memory
usage.

llvm-svn: 98829
 2010-03-18 16:16:38 +00:00
Douglas Gregor
84ef0ef3b9 Extend MemoryBuffer::getFile() to take an optional "stat" structure 
pointer. If given, the structure will be set with the stat information from
the file actually read.

llvm-svn: 98575
 2010-03-15 20:32:14 +00:00
Chris Lattner
a446775fd5 make APFloat::toString be const. 
llvm-svn: 97883
 2010-03-06 19:20:13 +00:00
Chris Lattner
f42f70bfa1 add an assertion requested on llvmdev. 
llvm-svn: 97769
 2010-03-05 00:49:08 +00:00
John McCall
e5b0ef9279 Don't potentially read past the end of the fill data when making a NaN from 
an APInt.

llvm-svn: 97467
 2010-03-01 18:38:45 +00:00
John McCall
f3fa6eb2ad Properly clear all the extra bits in a significand when making a NaN from an 
APInt.  Be certain to set the integer bit in an x87 extended-precision
significand so that we don't accidentally make a pseudo-NaN.

llvm-svn: 97382
 2010-02-28 12:49:50 +00:00
John McCall
b6e6dd63ad Add an override to StringRef::getAsInteger which parses into an APInt. 
It gets its own implementation totally divorced from the (presumably
performance-sensitive) routines which parse into a uint64_t.

Add APInt::operator|=(uint64_t), which is situationally much better than
using a full APInt.

llvm-svn: 97381
 2010-02-28 09:55:58 +00:00
John McCall
69bc985550 Teach APFloat how to create both QNaNs and SNaNs and with arbitrary-width 
payloads.  APFloat's internal folding routines always make QNaNs now,
instead of sometimes making QNaNs and sometimes SNaNs depending on the
type.

llvm-svn: 97364
 2010-02-28 02:51:25 +00:00
John McCall
bb9c3309b2 Make APFloat's string-parsing routines a bit safer against very large exponents. 
llvm-svn: 97278
 2010-02-26 22:20:41 +00:00
Benjamin Kramer
db1d98a624 Replace a temporary std::string with SmallString. 
llvm-svn: 97259
 2010-02-26 20:28:29 +00:00
Wesley Peck
94cdac52e5 Adding the MicroBlaze backend. 
The MicroBlaze is a highly configurable 32-bit soft-microprocessor for
use on Xilinx FPGAs. For more information see:
http://www.xilinx.com/tools/microblaze.htm
http://en.wikipedia.org/wiki/MicroBlaze

The current LLVM MicroBlaze backend generates assembly which can be
compiled using the an appropriate binutils assembler.

llvm-svn: 96969
 2010-02-23 19:15:24 +00:00
Jeffrey Yasskin
d5509ca6a2 Fix viewCFG on Linux. 
llvm-svn: 96834
 2010-02-23 00:04:53 +00:00
Dan Gohman
835086ef52 Fix various doxygen warnings. 
llvm-svn: 96779
 2010-02-22 04:10:52 +00:00
Duncan Sands
ca05b607b7 Refer to -help instead of --help since this is what tools themselves say. 
Also, have tools output -help-hidden rather than refer to --help-hidden,
for consistency, and likewise adjust documentation.  This doesn't change
every mention of --help, only those which seemed clearly safe.

llvm-svn: 96578
 2010-02-18 14:08:13 +00:00
Daniel Dunbar
92e99d82a2 Add Regex::sub, for doing regular expression substitution with backreferences. 
llvm-svn: 96503
 2010-02-17 20:08:42 +00:00
Chris Lattner
bd65f192f2 enhance raw_svector_ostream::write_impl to work with unbuffered streams, 
which may call write_impl on things that are not the usual buffer.

llvm-svn: 96209
 2010-02-15 02:18:26 +00:00
Chris Lattner
eeadc240f2 make PadToColumn return the stream so you can use: 
OS.PadToColumn(42) << "foo";

llvm-svn: 96208
 2010-02-15 02:17:50 +00:00
Dan Gohman
92b6122204 Fix "the the" and similar typos. 
llvm-svn: 95781
 2010-02-10 16:03:48 +00:00
Chris Lattner
e43007d443 add support for the sparcv9-*-* target triple to turn on 
64-bit sparc codegen.  Patch by Nathan Keynes!

llvm-svn: 95293
 2010-02-04 06:34:01 +00:00
John McCall
8bcabdeffc Make APInt::countLeadingZerosSlowCase() treat the contents of padding bits 
as undefined.  Fixes an assertion in APFloat::toString noticed by Dale.

llvm-svn: 95196
 2010-02-03 03:42:44 +00:00
Benjamin Kramer
fbfb029ab0 Fix MSVC build. 
llvm-svn: 94809
 2010-01-29 15:19:06 +00:00
Benjamin Kramer
cae092b08b Convert some users of ftostr to raw_ostream. 
llvm-svn: 94808
 2010-01-29 14:42:22 +00:00
Benjamin Kramer
326bcaa5f9 Use llvm::format instead of ftostr (which just calls sprintf). 
llvm-svn: 94807
 2010-01-29 14:40:33 +00:00
Benjamin Kramer
3b01285b76 Replace strcpy with memcpy when we have the length around anyway. 
llvm-svn: 94746
 2010-01-28 18:04:38 +00:00
Mikhail Glushenkov
5d02574734 Make SMDiagnostic::Print a const method. 
llvm-svn: 94672
 2010-01-27 10:13:28 +00:00
Mikhail Glushenkov
a5a618a417 Trailing whitespace. 
llvm-svn: 94671
 2010-01-27 10:13:11 +00:00
Dan Gohman
47ec8cddb7 Fix a typo that several people pointed out. Also, address the case of 
wrapping that Duncan pointed out.

llvm-svn: 94547
 2010-01-26 15:56:18 +00:00
Dan Gohman
0c02f09fba Add a comment about a missed opportunity. 
llvm-svn: 94507
 2010-01-26 04:13:15 +00:00
Dan Gohman
2d9a3eb391 Print empty and full sets specially. 
llvm-svn: 94506
 2010-01-26 04:12:55 +00:00
Chris Lattner
639c136993 Changes to fix buffering that I forgot to commit with previous patch. 
llvm-svn: 94222
 2010-01-22 21:16:10 +00:00
Chris Lattner
20390f5205 add a new MCAsmStreamer::GetCommentOS method to simplify stuff 
that doesn't want to use twines.

llvm-svn: 94199
 2010-01-22 19:17:48 +00:00
Dan Gohman
2d3e1be372 Avoid printing a spurious semicolon when there is no filename. 
llvm-svn: 94071
 2010-01-21 10:13:27 +00:00
David Greene
8831009b02 Fix an infinite recursion problem. dbgs() should return errs() in 
release mode.

llvm-svn: 94001
 2010-01-20 15:27:19 +00:00
Benjamin Kramer
21e6f07f53 Fix refacto reported by Nicolas Geoffray. 
llvm-svn: 93723
 2010-01-18 12:40:05 +00:00
Bill Wendling
921cd93e85 Temporarily revert r93581. It was causing failures in the ExecutionEngine tests 
on the build bots.

llvm-svn: 93606
 2010-01-16 01:06:58 +00:00
Ted Kremenek
bb1779e022 BumpPtrAllocator: Have the DefaultSlabAllocator created at runtime, not initialization time. This removes one of the 'init_constructors' reported in <rdar://problem/7545356>. 
llvm-svn: 93581
 2010-01-15 23:29:34 +00:00
Benjamin Kramer
5db856d384 Introduce Twine::toStringRef, a variant of toVector which avoids the copy if the 
twine can be represented as a single StringRef. Use the new methode to simplify
some twine users.

llvm-svn: 93317
 2010-01-13 12:45:23 +00:00
Benjamin Kramer
400ab557d3 Remove unused string functions. 
llvm-svn: 93183
 2010-01-11 20:33:12 +00:00
Benjamin Kramer
45e333ea95 Add StrInStrNoCase, a StringRef version of CStrInCStrNoCase. 
llvm-svn: 93174
 2010-01-11 19:45:18 +00:00
Benjamin Kramer
7ec2a31f14 Turns out llvm-gcc still uses SplitString with a vector. Add it back until I 
have a fix.

llvm-svn: 93163
 2010-01-11 18:44:35 +00:00
Benjamin Kramer
cdbc36f961 Reimplement getToken and SplitString as "StringRef helper functions" 
- getToken is modeled after StringRef::split but it can split on multiple
  separator chars and skips leading seperators.
- SplitString is a StringRef::split variant for more than 2 elements with the
  same behaviour as getToken.

llvm-svn: 93161
 2010-01-11 18:03:24 +00:00
Duncan Sands
8f97b49457 Suppress use of uninitialized variable warning. 
llvm-svn: 93046
 2010-01-09 08:30:33 +00:00
Douglas Gregor
c8114b239b More trivial optimizations to a function well outside the critical path 
llvm-svn: 92896
 2010-01-07 02:24:06 +00:00
Douglas Gregor
b7161a0b1c Switch StringRef::edit_distance over to using raw pointers, since both 
std::vector and llvm::SmallVector have annoying performance
tradeoffs. No, I don't expect this to matter, and now it won't.

llvm-svn: 92884
 2010-01-07 00:51:54 +00:00
David Greene
e06113f92c Change errs() to dbgs(). 
llvm-svn: 92646
 2010-01-05 01:29:03 +00:00
David Greene
748f4ea3c4 Change errs() to dbgs(). 
llvm-svn: 92645
 2010-01-05 01:28:58 +00:00
David Greene
70b4a7ebff Change errs() to dbgs(). 
llvm-svn: 92643
 2010-01-05 01:28:52 +00:00
David Greene
d36fd269e1 Change errs() to dbgs(). 
llvm-svn: 92642
 2010-01-05 01:28:47 +00:00
David Greene
a060a30a13 Change errs() to dbgs(). 
llvm-svn: 92641
 2010-01-05 01:28:43 +00:00
David Greene
065337b05c Change errs() to dbgs(). 
llvm-svn: 92640
 2010-01-05 01:28:40 +00:00
David Greene
b961c4aa37 Change errs() to dbgs(). 
llvm-svn: 92638
 2010-01-05 01:28:32 +00:00
David Greene
4bf2def211 Change errs() to dbgs(). 
llvm-svn: 92637
 2010-01-05 01:28:29 +00:00
Douglas Gregor
c4174c69ea Document the edit-distance algorithm used in StringRef, switch it over 
to SmallVector, and add a unit test.

llvm-svn: 92340
 2009-12-31 04:24:34 +00:00
Douglas Gregor
301af636d3 Implement edit distance for StringRef 
llvm-svn: 92309
 2009-12-30 17:23:44 +00:00
Chris Lattner
86c74f4783 Do not crash when .ll printing metadata that smells like debug info, but isn't. 
llvm-svn: 92268
 2009-12-29 21:17:33 +00:00
Chris Lattner
baa1820ccb fix indentation, fit in 80 cols. 
llvm-svn: 92267
 2009-12-29 21:09:57 +00:00
Chris Lattner
20668429a2 fix .cpp file to not wrap the entire file in namespace blocks. 
llvm-svn: 92250
 2009-12-29 07:28:33 +00:00
John McCall
75f1b8beeb Implement support for converting to string at "natural precision", and fix some 
major bugs in long-precision conversion.

llvm-svn: 92150
 2009-12-24 23:18:09 +00:00
John McCall
c6cdebbedd Substantially optimize APFloat::toString() by doing a single large divide to 
cut the significand down to the desired precision *before* entering the
core divmod loop.  Makes the overall algorithm logarithmic in the exponent.

There's still a lot of room for improvement here, but this gets the
performance back down to acceptable-for-diagnostics levels, even for
long doubles.
negligible, even on long doubles.

llvm-svn: 92130
 2009-12-24 12:16:56 +00:00
John McCall
c71c44ec7f Add accessors for the largest-magnitude, smallest-magnitude, and 
smallest-normalized-magnitude values in a given FP semantics.
Provide an APFloat-to-string conversion which I am quite ready to admit could
be much more efficient.

llvm-svn: 92126
 2009-12-24 08:56:26 +00:00
John McCall
dad4e2e4e5 Set Remainder before Quotient in case Quotient and LHS alias. The new 
order should be immune to such problems.

llvm-svn: 92124
 2009-12-24 08:52:06 +00:00
David Greene
9c8c8af11d Clarify how dbgs() operates. 
llvm-svn: 92083
 2009-12-23 23:23:15 +00:00
Chris Lattner
0f8308d48a sizeof(char) is always 1. 
llvm-svn: 92079
 2009-12-23 23:03:24 +00:00
Douglas Gregor
37e54f9d4d De-bork CMake build 
llvm-svn: 92003
 2009-12-23 17:03:46 +00:00
David Greene
3f7cf289ed Provide dbgs(), a circular-buffering debug output stream. By default it 
simply passes output to errs().  If -debug-buffer-size=N is set N > 0,
dbgs() buffers its output until program termination and dumps the last N
characters sent to it.  This is handy when debugging very large inputs.

llvm-svn: 92002
 2009-12-23 16:39:06 +00:00
David Greene
f1f78a15e1 Add circular_raw_ostream, which buffers its output in a circular queue 
and outputs it when explicitly flushed.  The intent is to use it in
situations such as debug output logging where a signal handler can take
care of flushing the buffer at program termination.

llvm-svn: 92001
 2009-12-23 16:08:15 +00:00
Chris Lattner
e390b70e2c Make some methods const. The only interesting change here is that 
it changes raw_fd_ostream::preferred_buffer_size to return zero on
a scary stat failure instead of setting the stream to an error state.
This method really should not mutate the stream.

llvm-svn: 91740
 2009-12-19 01:38:42 +00:00
Chris Lattner
eee37b7ba5 now that libsystem no longer uses SmallVector, we can move 
SmallVectorBase::grow_pod out of line, finally satisfying PR3758.

llvm-svn: 91529
 2009-12-16 08:44:24 +00:00
Dan Gohman
8e0956f734 Micro-optimize these functions in the case where they are not inlined. 
llvm-svn: 91316
 2009-12-14 19:32:31 +00:00
Daniel Dunbar
a8dc0ca084 DeltaAlgorithm: Add a virtual destructor and home. 
llvm-svn: 90957
 2009-12-09 07:19:48 +00:00
Daniel Dunbar
ff4a35a76b Fix typo and add missing include. 
llvm-svn: 90557
 2009-12-04 08:17:07 +00:00
Dan Gohman
c33030883f Print a newline after the Args: line so that unrelated errs() output doesn't 
end up on the same line.

llvm-svn: 90473
 2009-12-03 19:03:18 +00:00
Daniel Dunbar
63e2201f3e Add an implementation of the delta debugging algorithm. 
- This is a pretty slow / memory intensive implementation, and I will likely
   change it to an iterative model, but it works.

llvm-svn: 90447
 2009-12-03 11:12:42 +00:00
Chris Lattner
bd9a13086f return more useful error messages by using strerror to format errno 
instead of returning an ambiguous reason.

llvm-svn: 90275
 2009-12-01 22:51:41 +00:00
Douglas Gregor
2cb3662a53 Perform explicit instantiations in the proper namespace, since Clang diagnoses this ill-formity. 
llvm-svn: 89846
 2009-11-25 06:04:18 +00:00
Daniel Dunbar
11a4dce179 SourceMgr: Add ShowLine argument to PrintMessage, to allow suppressing the source line output. 
llvm-svn: 89627
 2009-11-22 22:08:00 +00:00
Mikhail Glushenkov
d561db80e6 Move the handling of CommaSeparated options into ProvideOption. 
Makes '--comma-separated val1,val2' mean the same thing as
'--comma-separated=val1,val2' (that is, 'val1' and 'val2' are not lumped
together as 'val1,val2'). Also declutters the main loop a bit.

llvm-svn: 89463
 2009-11-20 17:23:17 +00:00
Daniel Dunbar
8bb8ca3945 Use StringRef::min instead of std::min. 
llvm-svn: 89372
 2009-11-19 18:53:18 +00:00
Mikhail Glushenkov
55f7bd16f2 Trailing whitespace. 
llvm-svn: 89364
 2009-11-19 17:29:36 +00:00
Edward O'Callaghan
fb2393159b Add PS3 Triple class, Credit to John Thompson. 
llvm-svn: 89339
 2009-11-19 11:59:00 +00:00
Viktor Kutuzov
1452b67541 Added getArchNameForAssembler method to the Triple class for which returns OS and Vendor independent target assembler arch. 
llvm-svn: 89122
 2009-11-17 18:48:27 +00:00
Benjamin Kramer
f3f063a58e Revert CPU detection code to return "generic" instead of an empty string in case 
of failure. The x86 target didn't like empty cpu names and broke x86 tests on
non-x86 buildbots.

llvm-svn: 89111
 2009-11-17 17:57:04 +00:00
Owen Anderson
b319694f75 Fix a race condition in the Timer class. 
llvm-svn: 89056
 2009-11-17 07:06:10 +00:00
Edward O'Callaghan
c672c34d7a Add PSP OS Target to Triple, Credit to Bruno Cardoso Lopes. 
llvm-svn: 88849
 2009-11-15 10:18:17 +00:00
Daniel Dunbar
57f21a7c25 Report the detected host CPU in --version. 
llvm-svn: 88813
 2009-11-14 21:36:07 +00:00
Rafael Espindola
bece8d9ae7 Distinguish "a," from "a". The first one splits into "a" + "" and the second one into 
"a" + 0.

llvm-svn: 87084
 2009-11-13 04:55:09 +00:00
Rafael Espindola
11ceba8119 Switch to smallvector. Also fix issue with using unsigend for MaxSplit. 
llvm-svn: 87068
 2009-11-13 02:18:25 +00:00
Rafael Espindola
22f040b797 Add a new split method to StringRef that puts the substrings in a vector. 
llvm-svn: 87058
 2009-11-13 01:24:40 +00:00
Benjamin Kramer
da70783da7 Add compare_lower and equals_lower methods to StringRef. Switch all users of 
StringsEqualNoCase (from StringExtras.h) to it.

llvm-svn: 87020
 2009-11-12 20:36:59 +00:00
Nuno Lopes
569944e45f fix crash in my previous patch 
llvm-svn: 86987
 2009-11-12 15:10:33 +00:00
Nuno Lopes
aa4a883855 implement shl, ashr, and lshr methods. shl is not fully implemented as it is quite tricky. 
llvm-svn: 86986
 2009-11-12 14:53:53 +00:00
Sandeep Patel
a167903217 Show command-line args and features passed into backend in debug output. Approved by Evan Cheng. 
llvm-svn: 86797
 2009-11-11 03:23:46 +00:00
Daniel Dunbar
16a5387db2 Add From arguments to StringRef search functions, and tweak doxyments. 
Also, add unittests for find_first_of and find_first_not_of.

llvm-svn: 86770
 2009-11-11 00:28:53 +00:00
Daniel Dunbar
886e51b5c1 Fix MemoryBuffer::getSTDIN to *not* return null if stdin is empty, this is a lame API. 
Also, Stringrefify some more MemoryBuffer functions, and add two performance FIXMEs.

llvm-svn: 86630
 2009-11-10 00:43:58 +00:00
Nuno Lopes
5b15b50af4 add zextOrTrunc and sextOrTrunc methods, that are similar to the ones in APInt 
llvm-svn: 86549
 2009-11-09 15:36:28 +00:00