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1295 Commits

Author SHA1 Message Date
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