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Author SHA1 Message Date
Eli Friedman
15f56db6c0 Teach BasicAA about the LLVM IR rules that allow reading past the end of an object given sufficient alignment. Fixes PR12098. 
llvm-svn: 151553
 2012-02-27 20:46:07 +00:00
Roman Divacky
588712f080 Test the section specification. 
llvm-svn: 151552
 2012-02-27 20:42:19 +00:00
Derek Schuff
999fd3acef Fix PR12089 
http://llvm.org/bugs/show_bug.cgi?id=12089

llvm-svn: 151550
 2012-02-27 20:31:47 +00:00
Roman Divacky
200acf8e6e Reapply r151278 with fixes. 
MCize function entry label emission on PowerPC64 properly.

llvm-svn: 151547
 2012-02-27 20:20:47 +00:00
Chad Rosier
ff495392fa Add q suffix aliases for the fistp and fisttp mnemonics. 
rdar://10921670
PR11935

llvm-svn: 151543
 2012-02-27 19:43:12 +00:00
Akira Hatanaka
28521d25c9 Remove unnecessary template parameters. 
llvm-svn: 151540
 2012-02-27 19:17:53 +00:00
Akira Hatanaka
1e3ba02d8d Fix instruction predicates that were not set correctly. 
llvm-svn: 151538
 2012-02-27 19:09:08 +00:00
Jakob Stoklund Olesen
edc3446412 Update machine code verifier. 
After the SlotIndex slot names were updated, it is possible to apply
stricter checks to live intervals.

Also treat bundles as bags of operands when checking live intervals.

llvm-svn: 151531
 2012-02-27 18:24:30 +00:00
Kevin Enderby
91d284c5de Fix the symbolic operand added for the C disassmbler API for the ARM bl 
thumb instruction.  The PC adjustment is +4 in Thumb mode and +8 in ARM mode.

llvm-svn: 151530
 2012-02-27 18:15:15 +00:00
Jakob Stoklund Olesen
381eeb2932 Add a MachineOperand iterator class. 
The MIOperands iterator can visit operands on a single instruction, or
all operands in a bundle.  This simplifies code like the register
allocator that treats bundles as a set of operands.

llvm-svn: 151529
 2012-02-27 18:09:36 +00:00
Benjamin Kramer
e96ae5392c Plog a memleak in GlobalOpt. 
Found by valgrind.

llvm-svn: 151525
 2012-02-27 12:48:24 +00:00
Duncan Sands
0f1520e70b Micro-optimization, no functionality change. 
llvm-svn: 151524
 2012-02-27 12:11:41 +00:00
Jay Foad
e019c92c2a Help the compiler to eliminate some dead code when hashing an array of T 
where sizeof (T) is a multiple of 4.

llvm-svn: 151523
 2012-02-27 11:00:17 +00:00
Duncan Sands
7dc8ff6615 The value numbering function is recursive, so it is possible for multiple new 
value numbers to be assigned when calculating any particular value number.
Enhance the logic that detects new value numbers to take this into account,
for a tiny compile time speedup.  Fix a comment typo while there.

llvm-svn: 151522
 2012-02-27 09:54:35 +00:00
Duncan Sands
9e95178a81 When performing a conditional branch depending on the value of a comparison 
%cmp (eg: A==B) we already replace %cmp with "true" under the true edge, and
with "false" under the false edge.  This change enhances this to replace the
negated compare (A!=B) with "false" under the true edge and "true" under the
false edge.  Reported to improve perlbench results by 1%.

llvm-svn: 151517
 2012-02-27 08:14:30 +00:00
Craig Topper
9d9d92eab0 Remove HexagonGenIntrinsics.inc from Hexagon cmake file. It does not appear in the Makefile and the output it produces isn't used. The Hexagon intrinsics are all in the global Intrinsics.gen. 
llvm-svn: 151514
 2012-02-27 02:59:43 +00:00
Craig Topper
ae4e236c50 Update tblgen command guide. Remove unused tblgen InstrEnumEmitter files. 
llvm-svn: 151513
 2012-02-27 02:31:09 +00:00
Jia Liu
65a3b4e8b8 delete useless comment&blank 
llvm-svn: 151512
 2012-02-27 02:21:34 +00:00
Rafael Espindola
2d9b864afe Fix this assert. IP can point to an instruction with strange dominance 
properties (invoke). Just assert that the instruction we return dominates
the insertion point.

llvm-svn: 151511
 2012-02-27 02:13:03 +00:00
Craig Topper
ab46706aa9 X86 disassembler support for jcxz, jecxz, and jrcxz. Fixes PR11643. Patch by Kay Tiong Khoo. 
llvm-svn: 151510
 2012-02-27 01:54:29 +00:00
Chad Rosier
3c578aa81b Remove more GCC FE build stuff. 
llvm-svn: 151507
 2012-02-26 22:26:37 +00:00
Chad Rosier
9457d2b63a Installing the GCC front end is no longer supported. 
llvm-svn: 151506
 2012-02-26 22:17:05 +00:00
Chad Rosier
cb11644ed8 Cleanup the LLVM Getting Started page. 
llvm-svn: 151505
 2012-02-26 22:12:59 +00:00
Chad Rosier
9458712b9a Add href to clang in overview. 
llvm-svn: 151503
 2012-02-26 21:34:02 +00:00
Chad Rosier
d8384abc3c Remove references to llvm-gcc from overview and tutorial. 
llvm-svn: 151502
 2012-02-26 21:31:25 +00:00
Nadav Rotem
6eccbedc5f Add support for random constant vectors. 
Patch by Joey Gouly.

llvm-svn: 151489
 2012-02-26 13:56:18 +00:00
Nadav Rotem
65d5297fd2 Style fix: Remove unneeded parentheses. 
llvm-svn: 151488
 2012-02-26 12:34:17 +00:00
Nadav Rotem
2449d16831 Fix a bug in the code that checks if a store value is a vector of i1s 
llvm-svn: 151487
 2012-02-26 12:00:22 +00:00
Nadav Rotem
3680054079 Fix compilation on MSVC. Rename "_BB" to "Block" 
Thanks zygoloid.

llvm-svn: 151481
 2012-02-26 08:59:25 +00:00
Nadav Rotem
a77007fc95 fix a copy-and-paste error in the docs 
llvm-svn: 151480
 2012-02-26 08:43:43 +00:00
Nadav Rotem
8ce0029942 Add a random .LL file generator to stress-test different llvm components. 
llvm-svn: 151479
 2012-02-26 08:35:53 +00:00
Rafael Espindola
868ea25522 Add testcase for the previous commit. 
llvm-svn: 151475
 2012-02-26 05:49:57 +00:00
Rafael Espindola
c333947449 Don't call dominates on unreachable instructions. Should fix the dragonegg 
build. Testcase is still reducing.

llvm-svn: 151474
 2012-02-26 05:30:08 +00:00
Hal Finkel
abe41f723f Default TargetData alignment information for 128-bit floating-point types. 
llvm-svn: 151473
 2012-02-26 04:13:31 +00:00
Rafael Espindola
137548bb3e And update the comment... 
llvm-svn: 151472
 2012-02-26 02:36:56 +00:00
Rafael Espindola
e63adef174 Enable the assert that got all this dominator work started. 
llvm-svn: 151471
 2012-02-26 02:29:18 +00:00
Rafael Espindola
c97c3343f1 Use the DT dominates function in the verifier. 
llvm-svn: 151470
 2012-02-26 02:23:37 +00:00
Rafael Espindola
34b7c064cb Change the implementation of dominates(inst, inst) to one based on what the 
verifier does. This correctly handles invoke.
Thanks to Duncan, Andrew and Chris for the comments.
Thanks to Joerg for the early testing.

llvm-svn: 151469
 2012-02-26 02:19:19 +00:00
Rafael Espindola
f5f6146ba4 Don't call dominates on unreachable instructions. 
llvm-svn: 151468
 2012-02-26 02:14:25 +00:00
Nick Lewycky
a93c874757 Reinstate the optimization from r151449 with a fix to not turn 'gep %x' into 
'gep null' when the icmp predicate is unsigned (or is signed without inbounds).

llvm-svn: 151467
 2012-02-26 02:09:49 +00:00
Rafael Espindola
d9e654ca63 Don't call dominates on unreachable instructions. 
llvm-svn: 151466
 2012-02-26 01:50:14 +00:00
Nick Lewycky
849715d31f Roll these back to r151448 until I figure out how they're breaking 
MultiSource/Applications/lua.

llvm-svn: 151463
 2012-02-25 23:01:19 +00:00
Nick Lewycky
1636c6eaef An argument and a local identified object (eg. a noalias call) could turn out 
equal if both are null. In the test, scope type %t and global @y by adding a
'gep' prefix to them.

llvm-svn: 151452
 2012-02-25 20:19:07 +00:00
Nick Lewycky
808d0e3fa7 Fix five-letter typo in comment. 
llvm-svn: 151450
 2012-02-25 19:12:58 +00:00
Nick Lewycky
94be1c7d95 Teach instsimplify to be more aggressive when analyzing comparisons of pointers 
by using llvm::isIdentifiedObject. Also teach it to handle GEPs that have
the same base pointer and constant operands. Fixes PR11238!

llvm-svn: 151449
 2012-02-25 19:07:42 +00:00
Nick Lewycky
dce2cfc335 Move isKnownNonNull from private implementation detail of BasicAA to a public 
function that others can use, next to llvm::isIdentifiedObject.

llvm-svn: 151446
 2012-02-25 10:56:28 +00:00
Nick Lewycky
57a70ec2c4 Remove spurious emacs mode marker. 
llvm-svn: 151440
 2012-02-25 07:20:06 +00:00
Hal Finkel
3aea686faa Revert r151278, breaks static linking. 
Reverting this because it breaks static linking on ppc64. Specifically, it may be linkonce_odr functions that are the problem.
With this patch, if you link statically, calls to some functions end up calling their descriptor addresses instead
of calling to their entry points. This causes the execution to fail with SIGILL (b/c the descriptor address just
has some pointers, not code).

llvm-svn: 151433
 2012-02-25 03:40:11 +00:00
NAKAMURA Takumi
17b6271b41 Target/X86: Fix assertion failures and warnings caused by r151382 _ftol2 lowering for i386-*-win32 targets. Patch by Joe Groff. 
[Joe Groff] Hi everyone. My previous patch applied as r151382 had a few problems:
Clang raised a warning, and X86 LowerOperation would assert out for
fptoui f64 to i32 because it improperly lowered to an illegal
BUILD_PAIR. Here's a patch that addresses these issues. Let me know if
any other changes are necessary. Thanks.

llvm-svn: 151432
 2012-02-25 03:37:25 +00:00
Chad Rosier
7ebe024853 Add comment. 
llvm-svn: 151431
 2012-02-25 03:07:57 +00:00