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Author SHA1 Message Date
Dan Gohman
e0b313d599 Add a testcase to verify that commands don't crash when they hit 
errors on stderr.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111440 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 22:35:56 +00:00
Dan Gohman
2499990699 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111436 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 22:26:19 +00:00
Dan Gohman
4bb4641784 When sending stats output to stdout for grepping, don't emit normal 
output to standard output also.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111435 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 22:22:44 +00:00
Chris Lattner
30963fbe8f move gep decomposition out of ValueTracking into BasicAA. The form of 
decomposition that it is doing is very basicaa specific and is only used
by basicaa.

Now with less tree breakingness.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111433 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 22:07:29 +00:00
Dan Gohman
d77e5a8176 Tidy. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111432 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 22:04:43 +00:00
Bill Wendling
ad422718f9 Minor simplification. Gets rid of a needless temporary. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111430 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 21:32:07 +00:00
Owen Anderson
b81fd62a66 Use ConstantRange to propagate information through value definitions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111425 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 21:11:37 +00:00
Dan Gohman
4a8d7db6cf When sending stats output to stdout for grepping, don't emit normal 
output to standard output also.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111401 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 20:32:46 +00:00
Jakob Stoklund Olesen
ff3ae8691c Thinking about it, we don't need MachineDominatorTree after all. The DomValue 
map discovers the iterated dominance frontier for free.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111400 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 20:29:53 +00:00
Dan Gohman
e16068240e Introduce a ScopedFatalErrorHandler class to make it easy to register 
fatal error handlers which automatically get unregistered at the end
of a scope.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111398 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 20:16:39 +00:00
Jakob Stoklund Olesen
cf16bea74e Revert r111394. It was too aggressive. 
We must complete the DFS, otherwise we might miss needed phi-defs, and
prematurely color live ranges with a non-dominating value.

This is not a big deal since we get to color more of the CFG and the next
mapValue call will be faster.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111397 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 20:06:05 +00:00
Jakob Stoklund Olesen
4d440bd786 Aggressively prune the DFS when inserting phi-defs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111394 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 19:00:11 +00:00
Jakob Stoklund Olesen
1407c84242 Add the LiveIntervalMap class. Don't hook it up yet. 
LiveIntervalMap maps values from a parent LiveInterval to a child interval that
is a strict subset. It will create phi-def values as needed to preserve the
VNInfo SSA form in the child interval.

This leads to an algorithm very similar to the one in SSAUpdaterImpl.h, but with
enough differences that the code can't be reused:

- We don't need to manipulate PHI instructions.
- LiveIntervals have kills.
- We have MachineDominatorTree.
- We can use df_iterator.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111393 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 19:00:08 +00:00
Jakob Stoklund Olesen
6709c7bcda Add df_iterator::getPathLength and getPath as a way of getting a path from the 
entry node to the current node.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111392 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 19:00:05 +00:00
Daniel Dunbar
4ae56d725d Revert r111375, "move gep decomposition out of ValueTracking into BasicAA. The 
form of", it doesn't pass tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111385 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 18:43:08 +00:00
Bill Wendling
3d7ff08c82 Improve whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111384 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 18:41:13 +00:00
Bill Wendling
86b98b5874 Marked with ATTRIBUTE_USED so that clang doesn't complain. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111383 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 18:40:57 +00:00
Owen Anderson
00ac77ef88 Inform LazyValueInfo whenever a block is deleted, to avoid dangling pointer issues. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111382 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 18:39:01 +00:00
Daniel Dunbar
c983b20661 MC/ELF: Allow null values in virtual sections, ELF doesn't use special 
directives for putting contents in .bss, for example.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111376 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 18:22:37 +00:00
Chris Lattner
6b63037306 move gep decomposition out of ValueTracking into BasicAA. The form of 
decomposition that it is doing is very basicaa specific and is only used
by basicaa.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111375 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 18:22:17 +00:00
Jim Grosbach
74d803a58c Add hook for re-using virtual base registers for local stack slot access. 
Nothing fancy, just ask the target if any currently available base reg
is in range for the instruction under consideration and use the first one
that is. Placeholder ARM implementation simply returns false for now.

ongoing saga of rdar://8277890



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111374 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 17:57:37 +00:00
Dan Gohman
18cde6df91 Eliminate some redundancy by relying on raw_fd_ostream to handle "-" 
properly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111373 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 17:55:15 +00:00
Dan Gohman
4931b312c0 Allow the -analyze option to follow the -o option, which defaults to 
standard output, instead of just hardcoding outs().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111372 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 17:42:59 +00:00
Dan Gohman
86cbc1bb11 Don't translate "-" to outs() manually; raw_ostream does that automatically. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111371 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 17:40:10 +00:00
Dan Gohman
510cea0f90 Don't translate "-" to outs() manually; raw_ostream does that 
automatically.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111370 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 17:26:50 +00:00
Dan Gohman
ca91912a3b Don't register stdout to be deleted on a signal. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111368 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 17:21:42 +00:00
Dan Gohman
0a6ee29aae Remove an unused command-line option. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111367 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 17:20:51 +00:00
Jakob Stoklund Olesen
9ac248848f Preserve subregs on PHI source operands. Patch by Krister Wombell! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111366 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 16:09:47 +00:00
Kalle Raiskila
ca9460f5a0 Fix a bug with insertelement on SPU. 
The previous algorithm in LowerVECTOR_SHUFFLE 
didn't check all requirements for "monotonic" shuffles.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111361 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 10:20:29 +00:00
Kalle Raiskila
86a791284a Remove all traces of v2[i,f]32 on SPU. 
The "half vectors" are now widened to full size by the legalizer.
The only exception is in parameter passing, where half vectors are 
expanded. This causes changes to some dejagnu tests.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111360 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 10:04:39 +00:00
Kalle Raiskila
44ff5f5435 Change SPU C calling convention to match that described in 
"SPU Application Binary Interface Specification, v1.9" by
IBM. 
Specifically: use r3-r74 to pass parameters and the return value.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111358 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 09:50:30 +00:00
Chris Lattner
285d06ca93 fix a buggy test 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111354 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 04:55:12 +00:00
Chris Lattner
91b2307a89 fix PR7589: In brief: 
gep P, (zext x) != gep P, (sext x)

DecomposeGEPExpression was getting this wrong, confusing
basicaa.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111352 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 04:28:19 +00:00
Chris Lattner
903175096e filecheckize and detrivialize. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111350 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 04:25:43 +00:00
Chris Lattner
2fa7b48eb5 Fix PR7755: knowing something about an inval for a pred 
from the LHS should disable reconsidering that pred on the
RHS.  However, knowing something about the pred on the RHS
shouldn't disable subsequent additions on the RHS from
happening.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111349 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 03:14:36 +00:00
Chris Lattner
c7e31fcf49 fit in 80 cols 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111348 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 03:13:35 +00:00
Chris Lattner
2bde78206d remove some dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111345 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 02:42:11 +00:00
Chris Lattner
473fc96889 remove some dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111344 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 02:41:56 +00:00
Chris Lattner
0d857cf8d1 remove some code that is dead now that lea's are modeled with segment registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111343 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 02:40:44 +00:00
Chris Lattner
3126f1c028 remove dead prototype. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111342 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 02:37:06 +00:00
Bob Wilson
2003bcfbd2 Expand ZERO_EXTEND operations for NEON vector types. 
Testcase from Nick Lewycky.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111341 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 01:45:52 +00:00
Dan Gohman
f9d1163769 Fix the "Finished Creating" messages for aliases to print the 
right name.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111340 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 01:35:53 +00:00
Dan Gohman
d2da32711d Revert r111321. This doesn't fix a problem. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111339 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 01:34:52 +00:00
Chris Lattner
5083912dd7 stomp some more undefined behavior, PR7775. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111337 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 00:33:47 +00:00
Chris Lattner
c62a4b0f03 don't emit zero bit fields with Emit, fixing undefined behavior, 
PR7778


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111336 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 00:29:18 +00:00
Chris Lattner
7f7274ce7f Don't pass in a null pointer to std::string's ctor, an empty string 
ref should produce an empty std::string.  This fixes PR7879.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111332 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 00:11:25 +00:00
Chris Lattner
dc65f22390 fix a broken link 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111326 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 23:26:04 +00:00
Chris Lattner
7942e3c412 include config.h to get config params, hopefully unbreaking mingw builder. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111325 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 23:22:10 +00:00
Chris Lattner
93d81b697c 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111321 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 23:11:56 +00:00
Chris Lattner
73ebaff79f 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111320 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 23:03:53 +00:00