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22538 Commits

Author SHA1 Message Date
Dale Johannesen
5dcdb08b0d Rename -disable-required-unwind-tables to unwind-tables-optional. 
llvm-svn: 49389
 2008-04-08 18:07:49 +00:00
Duncan Sands
f86399a00f Convenience method for setting the nounwind 
attribute for a function.

llvm-svn: 49373
 2008-04-08 07:23:58 +00:00
Devang Patel
1cf9e1e337 Fix insert point handling for multiple return values. 
llvm-svn: 49367
 2008-04-08 02:24:08 +00:00
Dale Johannesen
2d29b1c5bb Handle the situation in 2008-01-25-EmptyFunction.ll 
correctly when unwind info is being generated.

llvm-svn: 49366
 2008-04-08 00:37:56 +00:00
Dale Johannesen
ec0fe04044 Implement new llc flag -disable-required-unwind-tables. 
Corresponds to -fno-unwind-tables (usually default in gcc).

llvm-svn: 49361
 2008-04-08 00:10:24 +00:00
Ted Kremenek
be2279d470 Make getDirnameSep a static method (not part of Path's interface). 
llvm-svn: 49354
 2008-04-07 22:01:32 +00:00
Ted Kremenek
82b7e8d306 Added method Path::getDirname(). 
llvm-svn: 49352
 2008-04-07 21:53:57 +00:00
Dan Gohman
d7301ea935 Rename MemOperand to MachineMemOperand. This was suggested by 
review feedback from Chris quite a while ago. No functionality
change.

llvm-svn: 49348
 2008-04-07 19:35:22 +00:00
Owen Anderson
4ad5a5201c Add operator= implementations to SparseBitVector, allowing it to be used in GVN. This results 
in both time and memory savings for GVN.  For example, one testcase went from 10.5s to 6s with
this patch.

llvm-svn: 49345
 2008-04-07 17:38:23 +00:00
Daniel Berlin
b8533b394a Fix PR 2169. 
llvm-svn: 49339
 2008-04-07 14:20:50 +00:00
Duncan Sands
64f15131d8 Use Intrinsic::getDeclaration in more places. 
llvm-svn: 49338
 2008-04-07 13:45:04 +00:00
Duncan Sands
98ed2df5f3 The "stacksave is not nounwind problem" no longer 
needs to be fixed here - a previous commit made sure
that intrinsics always get the right attributes.
So remove no-longer needed code, and while there use
Intrinsic::getDeclaration rather than getOrInsertFunction. 

llvm-svn: 49337
 2008-04-07 13:43:58 +00:00
Duncan Sands
9622724bc3 Use Intrinsic::getDeclaration to get hold of 
intrinsics.  Fix up the argument type (should
be i8*, was an array*).

llvm-svn: 49336
 2008-04-07 13:41:19 +00:00
Duncan Sands
c68e092c44 Make sure that intrinsics automagically get the 
right parameter attributes no matter how they
are obtained.

llvm-svn: 49335
 2008-04-07 13:39:11 +00:00
Roman Levenstein
b40d332929 Re-commit of the r48822, where the infinite looping problem discovered 
by Dan Gohman is fixed.

llvm-svn: 49330
 2008-04-07 10:06:32 +00:00
Owen Anderson
93ab00f1d9 Make GVN more memory efficient, particularly on code that contains a large number of 
allocations, which GVN can't optimize anyways.

llvm-svn: 49329
 2008-04-07 09:59:07 +00:00
Dale Johannesen
5c2c09c01b Mark calls to llvm.stacksave, llvm.stackrestore as 
nounwind.  When such calls are inlined into something
else that is invoked, they were getting changed to invokes,
which is badness.

llvm-svn: 49299
 2008-04-07 00:08:48 +00:00
Gabor Greif
5a1f254f0a regenerate 
llvm-svn: 49293
 2008-04-06 23:07:54 +00:00
Chris Lattner
73d12a36c6 fix warnings with assertions disabled. 
llvm-svn: 49285
 2008-04-06 21:50:58 +00:00
Chris Lattner
7a4d7b7aa6 Silence warning when no assertions. 
llvm-svn: 49284
 2008-04-06 21:46:45 +00:00
Chris Lattner
f8fac07b94 silence a warning when assertions are disabled. 
llvm-svn: 49283
 2008-04-06 21:44:08 +00:00
Gabor Greif
c82cfa3755 fix a warning 
llvm-svn: 49282
 2008-04-06 21:42:13 +00:00
Torok Edwin
34e6889671 Prefer to expand mask for xor to -1, so we have a chance to turn it into a not. 
If it cannot be expanded, it will keep the old behaviour and try to shrink the constant.
Part of enhancement for PR2191.

llvm-svn: 49280
 2008-04-06 21:23:02 +00:00
Gabor Greif
6c6b8a57f3 API changes for class Use size reduction, wave 1. 
Specifically, introduction of XXX::Create methods
for Users that have a potentially variable number of
Uses.

llvm-svn: 49277
 2008-04-06 20:25:17 +00:00
Chris Lattner
4cc62604a1 disable this for now. 
llvm-svn: 49248
 2008-04-05 04:12:01 +00:00
Evan Cheng
d7d1c94e67 1. IMPLICIT_DEF can *re-define* any register. 
2. Coalescer can now create an interesting situation where a register def can
   reaches itself without being killed.

llvm-svn: 49246
 2008-04-05 01:27:09 +00:00
Evan Cheng
4d7b2ab16f Favors pshufd over shufps when shuffling elements from one vector. pshufd is faster than shufps. 
llvm-svn: 49244
 2008-04-05 00:30:36 +00:00
Dale Johannesen
6ebaf848f4 Make sure both PendingLoads and PendingExports are flushed 
before an invoke.  Failure to do this causes references in
the landing pad to variables that were not set.  Fixes
g++.dg/eh/delayslot1.C
g++.dg/eh/fp-regs.C
g++.old-deja/g++.brendan/eh1.C

llvm-svn: 49243
 2008-04-04 23:48:31 +00:00
Torok Edwin
a282b19804 strdup needs <cstring>. This fixes a build error with g++-4.3. 
llvm-svn: 49218
 2008-04-04 16:08:00 +00:00
Chris Lattner
066a1dea6c Provide an initial cut at exposing JIT compiled symbols to performance 
tools.  This is currently only enabled on the mac, but could easily be
supported by other hosts that are interested.

llvm-svn: 49207
 2008-04-04 05:51:42 +00:00
Chris Lattner
0891662a49 Make ExecutionEngine::updateGlobalMapping return the old mapping. 
llvm-svn: 49206
 2008-04-04 04:47:41 +00:00
Evan Cheng
b05f463467 Undo PHI elimination copy placement patch. This causes coalescing (performace) issues. 
llvm-svn: 49198
 2008-04-04 01:20:05 +00:00
Evan Cheng
1ce4ac7386 This is done. 
llvm-svn: 49197
 2008-04-04 01:19:03 +00:00
Andrew Lenharth
e60f2413d4 if some functions don't have debug info, we were outputing the same label at the start of each of those functions. This makes assemblers unhappy 
llvm-svn: 49176
 2008-04-03 17:37:43 +00:00
Evan Cheng
e86caa45cf - Turn copies of implicit_def into implicit_def instructions. 
- Be smarter about coalescing copies from implicit_def.

llvm-svn: 49168
 2008-04-03 16:41:54 +00:00
Evan Cheng
ff9c1655de Special handling of zero-sized live intervals. 
llvm-svn: 49167
 2008-04-03 16:40:27 +00:00
Evan Cheng
6250bfbd3e - Treat a live range defined by an implicit_def as a zero-sized one. 
- Eliminate an implicit_def when it's being spilled.

llvm-svn: 49166
 2008-04-03 16:39:43 +00:00
Evan Cheng
ba120126ba - PHI elimination also eliminates implicit_def that fits into a PHI node rather than copying it. 
- Be (slightly) smarter about where to place the copies.

llvm-svn: 49165
 2008-04-03 16:38:20 +00:00
Evan Cheng
53c8db51dd Start of a series of patches related to implicit_def. 
There is no point in creating a long live range defined by an implicit_def. Scheduler now duplicates implicit_def instruction for each of its uses. Therefore, if an implicit_def node has multiple uses, it will become a number of very short live ranges, rather than a long one. This will make coalescer's job easier.

llvm-svn: 49164
 2008-04-03 16:36:07 +00:00
Ted Kremenek
1a9c18b50d Re-implemented Path::createDirectoryOnDisk (for Unix). 
This method allows one to create a directory, and optionally create all parent
directories that do not exist.

The original implementation would require that *all* directories along a path
are writable by the user, including directories that already exist. For example,
suppose we wanted to create the directory "/tmp/foo/bar", and the directory
"/tmp" already exists, but not "/tmp/foo". Since "/tmp" is writable by all
users, the original implementation would work, and create "/tmp/foo", followed
by "/tmp/bar".

A problem occurred, however if one wanted to created the directory
"/Users/myuser/bar" (or equivalently "/home/myuser/bar"), and "/Users/myuser"
already existed and is writable by the current user. The directory
"/User/myuser" is writable by the user, but "/User" is not. The original
implementation of createDirectoryOnDisk would return with failure since "/User"
is not writable, even though "/User/mysuser" is writable.

The new implementation works by recursively creating parents as needed, and thus
doesn't need to check the permissions on every directory in a path.

llvm-svn: 49162
 2008-04-03 16:11:31 +00:00
Evan Cheng
0585b4bc2a Re-enable SSE4. 
llvm-svn: 49158
 2008-04-03 08:53:29 +00:00
Evan Cheng
cb5a5467dc Fix x86-64 encoding bug. REX prefix must always follow 0x0F prefix. For example, extractps in 64bit mode: 66 REX 0F 3A 17, not 66 0F 3A REX 17. 
llvm-svn: 49157
 2008-04-03 08:53:17 +00:00
Evan Cheng
12d2bbde0d Cosmetic 
llvm-svn: 49156
 2008-04-03 07:45:18 +00:00
Evan Cheng
f112eb3b1c Temporarily disabling SSE4 until we fix the encoding issues. 
llvm-svn: 49129
 2008-04-03 04:49:54 +00:00
Evan Cheng
497c607fae Backing out 48222 temporarily. 
llvm-svn: 49124
 2008-04-03 03:13:16 +00:00
Dan Gohman
5b2503097e Suppress the 128-bit integer typedef on 32-bit targets, because 
it causes compile errors.

llvm-svn: 49122
 2008-04-02 23:52:49 +00:00
Dale Johannesen
8b316fb8bc Make EH work with unnamed functions. Reenable running 
StripSymbols when EH is on.

llvm-svn: 49110
 2008-04-02 20:10:52 +00:00
Dan Gohman
4949a9c308 Partial CBackend support for 128-bit integers. This is needed 
now that llvm-gcc is lowering appropriately-sized struct returns
to i128 on x86-64.

llvm-svn: 49109
 2008-04-02 19:40:14 +00:00
David Greene
0ca05878fe Iterators folloring a SmallVector erased element are invalidated so 
don't access cached iterators from after the erased element.

Re-apply 49056 with SmallVector support.

llvm-svn: 49106
 2008-04-02 18:24:46 +00:00
Evan Cheng
748a0c9215 Now that I am told MachineRegisterInfo also tracks physical register uses / defs, I can do away with the horribleness I introduced a while back. It's impossible to detect if there is any use of a physical register below an instruction (and before any def of the register) with some cheap book keeping. 
llvm-svn: 49105
 2008-04-02 18:04:08 +00:00