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Author SHA1 Message Date
Devang Patel
ee65f3c2c3 Update to match changes in lldb interface. 
llvm-svn: 124687
 2011-02-01 21:47:35 +00:00
Anton Korobeynikov
323825cee4 Fix imm printing for logical instructions. 
Patch by Brian G. Lucas!

llvm-svn: 124679
 2011-02-01 20:22:53 +00:00
Anton Korobeynikov
4b076fdbdb Document the LLVM GIT mirror 
llvm-svn: 124677
 2011-02-01 20:08:28 +00:00
David Greene
e563b14e41 [AVX] Implement EnforceSmallerThan for mixed int/fp type lists. This 
makes type checking for extract_subvector and insert_subvector more
robust and will allow stricter typechecking of more patterns in the
future.

This change handles int and fp as disjoint sets so that it will
enforce integer types to be smaller than the largest integer type and
fp types to be smaller than the largest fp type.  There is no attempt
to check type sizes across the int/fp sets.

llvm-svn: 124672
 2011-02-01 19:12:32 +00:00
Devang Patel
b61c9bfa72 Remove stale references of obsolete @llvm.dbg.variable. 
llvm-svn: 124664
 2011-02-01 17:22:12 +00:00
Jay Foad
89383f48ca Make SwitchInst::removeCase() more efficient. 
llvm-svn: 124659
 2011-02-01 09:22:34 +00:00
Duncan Sands
c03dbe4b1c Add a m_Undef pattern for convenience. This is so that code that uses 
pattern matching can also pattern match undef, creating a more uniform
style.

llvm-svn: 124657
 2011-02-01 09:06:20 +00:00
Duncan Sands
659237307a Add a m_SignBit pattern for convenience. 
llvm-svn: 124656
 2011-02-01 08:50:33 +00:00
Duncan Sands
06e82c76ee Have m_One also match constant vectors for which every element is 1. 
llvm-svn: 124655
 2011-02-01 08:39:12 +00:00
Carl Norum
667d5dbdcb Test commit - fix a double 'should' in a comment. 
llvm-svn: 124652
 2011-02-01 07:38:42 +00:00
Rafael Espindola
e60f9519d8 Correctly merge available_externally and regular definitions when they have 
different visibilities.

llvm-svn: 124650
 2011-02-01 05:33:52 +00:00
Evan Cheng
3689d1302d Fix bogus assert condition noticed by Csaba Raduly. 
llvm-svn: 124645
 2011-02-01 01:50:49 +00:00
Eric Christopher
f8b2388751 Reapply 124275 since the Dragonegg failure was unreproducible. 
llvm-svn: 124641
 2011-02-01 01:16:32 +00:00
Evan Cheng
dc27913f2d Fix test for non-darwin targets. 
llvm-svn: 124640
 2011-02-01 01:16:18 +00:00
Evan Cheng
0e8c521bbd Patches to build EFI with Clang/LLVM. By Carl Norum. 
llvm-svn: 124639
 2011-02-01 01:14:13 +00:00
Devang Patel
2b1331b4d1 Remove stale test that has never worked, afaik. 
llvm-svn: 124635
 2011-02-01 00:47:16 +00:00
Rafael Espindola
54673ba6ca Don't tell the linker about available_externally definitions. If we do, it will 
complain about duplicated definitions.

llvm-svn: 124634
 2011-02-01 00:41:51 +00:00
Devang Patel
97c467ee47 Keep track of incoming argument's location while emitting LiveIns. 
llvm-svn: 124611
 2011-01-31 21:38:14 +00:00
Devang Patel
23d0acc520 While printing "interesting" breakpoint locations for debug info quality test harness, focus only on entry block's terminator for now. 
llvm-svn: 124610
 2011-01-31 21:36:24 +00:00
Roman Divacky
254f2ab16a Enumerate .code16/32/64 instead of checking .code prefix. This 
unbreaks some ARM tests.

llvm-svn: 124608
 2011-01-31 21:19:43 +00:00
Devang Patel
3ff5f6ad2d Tidy up. 
llvm-svn: 124605
 2011-01-31 21:16:37 +00:00
Devang Patel
bf57c32e2e Focus on arguments for now. 
llvm-svn: 124604
 2011-01-31 21:15:39 +00:00
Roman Divacky
9a8a680ed2 Error on all .code* directives instead of just .code16 as they 
all lead to a silent miscompilation of code.

llvm-svn: 124603
 2011-01-31 20:56:49 +00:00
David Greene
0db8e64017 Fix vector sign extend to put the source and destination types in the 
correct places.

llvm-svn: 124601
 2011-01-31 20:39:01 +00:00
Chris Lattner
1d534245fc add a note, progress unblocked by PR8575 being fixed. 
llvm-svn: 124599
 2011-01-31 20:23:28 +00:00
Oscar Fuentes
d79df5b7c8 Adds some platform checks to cmake/config-ix.cmake and fixes checking 
for dlopen/dlerror.

Patch by arrowdodger!

llvm-svn: 124590
 2011-01-31 18:25:25 +00:00
Richard Osborne
11cdda2346 Fix bug where ReduceLoadWidth was creating illegal ZEXTLOAD instructions. 
llvm-svn: 124587
 2011-01-31 17:41:44 +00:00
NAKAMURA Takumi
826d7183d5 CMake: Fix a few definition to suppress warnings. 
llvm-svn: 124583
 2011-01-31 09:41:20 +00:00
Anton Korobeynikov
b31576ae4d Save a mapping between original and cloned constpool entries. 
llvm-svn: 124570
 2011-01-30 22:07:39 +00:00
Anton Korobeynikov
c608d67509 Clarify the LSDASection NULL check 
llvm-svn: 124569
 2011-01-30 22:07:31 +00:00
Anders Carlsson
f184e5de9a Recognize and simplify 
(A+B) == A  ->  B == 0
A == (A+B)  ->  B == 0

llvm-svn: 124567
 2011-01-30 22:01:13 +00:00
Jakob Stoklund Olesen
430d0693dc Respect the -tail-dup-size command line option even when optimizing for size. 
This is similar to the -unroll-threshold option. There should be no change in
behavior when -tail-dup-size is not explicit on the llc command line.

llvm-svn: 124564
 2011-01-30 20:38:12 +00:00
Duncan Sands
987c8bc759 Commit 124487 broke 254.gap. See if disabling the part that might be triggered 
by PR9088 fixes things.

llvm-svn: 124561
 2011-01-30 18:24:20 +00:00
Duncan Sands
ac01c21937 Transform (X/Y)*Y into X if the division is exact. Instcombine already knows how 
to do this and more, but would only do it if X/Y had only one use.  Spotted as the
most common missed simplification in SPEC by my auto-simplifier, now that it knows
about nuw/nsw/exact flags.  This removes a bunch of multiplications from 447.dealII
and 483.xalancbmk.  It also removes a lot from tramp3d-v4, which results in much
more inlining.

llvm-svn: 124560
 2011-01-30 18:03:50 +00:00
Benjamin Kramer
6b3c3de09a Teach DAGCombine to fold fold (sra (trunc (sr x, c1)), c2) -> (trunc (sra x, c1+c2) when c1 equals the amount of bits that are truncated off. 
This happens all the time when a smul is promoted to a larger type.

On x86-64 we now compile "int test(int x) { return x/10; }" into
  movslq  %edi, %rax
  imulq $1717986919, %rax, %rax
  movq  %rax, %rcx
  shrq  $63, %rcx
  sarq  $34, %rax <- used to be "shrq $32, %rax; sarl $2, %eax"
  addl  %ecx, %eax

This fires 96 times in gcc.c on x86-64.

llvm-svn: 124559
 2011-01-30 16:38:43 +00:00
Nick Lewycky
abfab6156c Fix 'fcmp one' constant folding. Noticed by inspection. 
llvm-svn: 124557
 2011-01-30 01:49:58 +00:00
Nick Lewycky
001e12d8d5 Fix some formatting and upgrade comments from llvm 1.x to 2.x syntax. 
llvm-svn: 124556
 2011-01-30 01:48:50 +00:00
Bill Wendling
481f64ab68 This is #included by .c files. Remove C++-style comments. 
llvm-svn: 124552
 2011-01-29 21:54:26 +00:00
Nick Lewycky
5259b6a6e2 Add the select optimization recently added to instcombine to constant folding. 
This is the one where one of the branches of the select is another select on
the same condition.

llvm-svn: 124547
 2011-01-29 20:35:06 +00:00
Francois Pichet
6aed3c72dc Unbreak the MSVC build. 
The DEBUG() call at line 606 demands to see raw_ostream's definition. I have no idea why this seems to only break MSVC.

llvm-svn: 124545
 2011-01-29 20:06:16 +00:00
Nick Lewycky
67acf52b2e Fix comment. 
llvm-svn: 124544
 2011-01-29 19:55:23 +00:00
Frits van Bommel
b1b70f2a44 Call SimplifyFDivInst() in InstCombiner::visitFDiv(). 
llvm-svn: 124535
 2011-01-29 17:50:27 +00:00
Frits van Bommel
92dc04df67 Move InstCombine's knowledge of fdiv to SimplifyInstruction(). 
llvm-svn: 124534
 2011-01-29 15:26:31 +00:00
Duncan Sands
0587f785bf Fix typo: should have been testing that X was odd, not V. 
llvm-svn: 124533
 2011-01-29 13:27:00 +00:00
Benjamin Kramer
4a40190f76 Add the missing sub identity "A-(A-B) -> B" to DAGCombine. 
This happens e.g. for code like "X - X%10" where we lower the modulo operation
to a series of multiplies and shifts that are then subtracted from X, leading to
this missed optimization.

llvm-svn: 124532
 2011-01-29 12:34:05 +00:00
Evan Cheng
20433f6339 Add a test for TCE return duplication. 
llvm-svn: 124527
 2011-01-29 04:53:35 +00:00
Evan Cheng
4af5487b74 Re-apply r124518 with fix. Watch out for invalidated iterator. 
llvm-svn: 124526
 2011-01-29 04:46:23 +00:00
Evan Cheng
1f943b9b13 Revert r124518. It broke Linux self-host. 
llvm-svn: 124522
 2011-01-29 02:43:04 +00:00
Evan Cheng
a1e4cb5f09 Re-commit r124462 with fixes. Tail recursion elim will now dup ret into unconditional predecessor to enable TCE on demand. 
llvm-svn: 124518
 2011-01-29 01:29:26 +00:00
Andrew Trick
72f17d97f3 Implementation of path profiling. 
Modified patch by Adam Preuss.

This builds on the existing framework for block tracing, edge profiling and optimal edge profiling.
See -help-hidden for new flags.
For documentation, see the technical report "Implementation of Path Profiling..." in llvm.org/pubs.

llvm-svn: 124515
 2011-01-29 01:09:53 +00:00