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13803 Commits

Author SHA1 Message Date
Ted Kremenek
c7c75361fa Tweak CrashRecoveryContextCleanup::createCleanup() to use the 'delete' cleanup as opposed to the 'destructor' cleanup (reclaims more memory). 
llvm-svn: 127865
 2011-03-18 03:46:21 +00:00
Ted Kremenek
4a4428a5bc Add new CrashRecoveryContextCleanup subclass: CrashRecoveryContextDeleteCleanup. This deletes the object, not just calls its destructor. 
llvm-svn: 127855
 2011-03-18 03:04:18 +00:00
Ted Kremenek
1a2fa05e5f Augment CrashRecoveryContext to have registered "cleanup" objects that can be used to release resources during a crash. 
llvm-svn: 127849
 2011-03-18 02:05:11 +00:00
Andrew Trick
07887af00c Added isValidRewrite() to check the result of ScalarEvolutionExpander. 
SCEV may generate expressions composed of multiple pointers, which can
lead to invalid GEP expansion. Until we can teach SCEV to follow strict
pointer rules, make sure no bad GEPs creep into IR.
Fixes rdar://problem/9038671.

llvm-svn: 127839
 2011-03-17 23:51:11 +00:00
Rafael Espindola
3ecf930d14 Use RequiresNullTerminator to create buffers without a null terminator 
instead of copying.

llvm-svn: 127835
 2011-03-17 22:18:42 +00:00
Devang Patel
f8c3eb7368 Try to not lose variable's debug info during instcombine. 
This is done by lowering dbg.declare intrinsic into dbg.value intrinsic.
Radar 9143931.

llvm-svn: 127834
 2011-03-17 22:18:16 +00:00
Devang Patel
3506f02e33 Refactor into a separate utility function. 
llvm-svn: 127832
 2011-03-17 21:58:19 +00:00
Benjamin Kramer
a85996c235 Add an argument to APInt's magic udiv calculation to specify the number of bits that are known zero in the divided number. 
This will come in handy soon.

llvm-svn: 127828
 2011-03-17 20:39:06 +00:00
Jakob Stoklund Olesen
047a25b0b0 Dead code elimination may separate the live interval into multiple connected components. 
I have convinced myself that it can only happen when a phi value dies. When it
happens, allocate new virtual registers for the components.

llvm-svn: 127827
 2011-03-17 20:37:07 +00:00
Richard Osborne
6bad79b514 Add XCore intrinsic for setpsc. 
llvm-svn: 127821
 2011-03-17 18:42:05 +00:00
Cameron Zwarich
cea63dc052 Move more logic into getTypeForExtArgOrReturn. 
llvm-svn: 127809
 2011-03-17 14:53:37 +00:00
Cameron Zwarich
a5746339cc Rename getTypeForExtendedInteger() to getTypeForExtArgOrReturn(). 
llvm-svn: 127807
 2011-03-17 14:21:56 +00:00
Rafael Espindola
8dab9a762b Add support in the LTO library for loading an object from the middle 
of an file.

llvm-svn: 127781
 2011-03-17 00:36:11 +00:00
Jakob Stoklund Olesen
2786187b43 Rewrite instructions as part of ConnectedVNInfoEqClasses::Distribute. 
llvm-svn: 127779
 2011-03-17 00:23:45 +00:00
Cameron Zwarich
2bb1e45ea3 The x86-64 ABI says that a bool is only guaranteed to be sign-extended to a byte 
rather than an int. Thankfully, this only causes LLVM to miss optimizations, not
generate incorrect code.

This just fixes the zext at the return. We still insert an i32 ZextAssert when
reading a function's arguments, but it is followed by a truncate and another i8
ZextAssert so it is not optimized.

llvm-svn: 127766
 2011-03-16 22:20:18 +00:00
Richard Osborne
8b90369d96 Add XCore intrinsics for setclk, setrdy. 
llvm-svn: 127761
 2011-03-16 21:56:00 +00:00
Richard Osborne
318e25c620 Add checkevent intrinsic to check if any resources owned by the current thread 
can event.

llvm-svn: 127741
 2011-03-16 18:34:00 +00:00
Cameron Zwarich
96e380e650 Add TargetData::fitsInLegalInteger(). 
llvm-svn: 127714
 2011-03-16 00:13:28 +00:00
John Thompson
da294e31da Add scei vendor 
llvm-svn: 127705
 2011-03-15 21:51:56 +00:00
Richard Osborne
70204c1c29 Add XCore intrinsics for getps, setps, setsr and clrsr. 
llvm-svn: 127678
 2011-03-15 13:45:47 +00:00
Justin Holewinski
8948485aa7 PTX: Set PTX 2.0 as the minimum supported version 
- Remove PTX 1.4 code generation
- Change type of intrinsics to .v4.i32 instead of .v4.i16
- Add and/or/xor integer instructions

llvm-svn: 127677
 2011-03-15 13:24:15 +00:00
Evan Cheng
14eff5d627 - Add "Bitcast" target instruction property for instructions which perform 
nothing more than a bitcast.
- Teach tablegen to automatically infer "Bitcast" property.

llvm-svn: 127667
 2011-03-15 05:09:26 +00:00
John McCall
cb1d6e9690 Version N of the llvm_unreachable patch: VC++ doesn't recognize that abort() 
doesn't return, so just go back to using the old runtime function instead
of trying to use abort() when __builtin_unreachable (or an equivalent) isn't
supported.

llvm-svn: 127629
 2011-03-14 22:41:50 +00:00
Jim Grosbach
560a7bf8b1 Trailing whitespace. 
llvm-svn: 127620
 2011-03-14 20:59:06 +00:00
Jakob Stoklund Olesen
29a9539e7f Place context in member variables instead of passing around pointers. 
Use the opportunity to get rid of the trailing underscore variable names.

llvm-svn: 127618
 2011-03-14 20:57:14 +00:00
John McCall
952cbb2634 Okay, some compilers complain if you provide the exception-specification 
where none was before.  Just don't declare it and hope it's declared
in every translation unit that needs it.

llvm-svn: 127612
 2011-03-14 20:20:29 +00:00
John McCall
46f704310d Fix the exception-specification of abort() when declaring it in C++. 
llvm-svn: 127610
 2011-03-14 20:10:50 +00:00
John McCall
fe51bf5de7 Make llvm_unreachable evaluate to __builtin_unreachable() in -Asserts 
builds, which was the apparent consensus of PR8973 and llvmdev.

llvm-svn: 127608
 2011-03-14 20:01:21 +00:00
Andrew Trick
5d45b563c5 Added SCEV::NoWrapFlags to manage unsigned, signed, and self wrap 
properties.
Added the self-wrap flag for SCEV::AddRecExpr.
A slew of temporary FIXMEs indicate the intention of the no-self-wrap flag
without changing behavior in this revision.

llvm-svn: 127590
 2011-03-14 16:50:06 +00:00
Mikhail Glushenkov
5a7b935681 Emacs mode string. 
llvm-svn: 127576
 2011-03-14 04:20:57 +00:00
Duncan Sands
0514e10276 Speculatively revert commit 127478 (jsjodin) in an attempt to fix the 
llvm-gcc-i386-linux-selfhost and llvm-x86_64-linux-checks buildbots.
The original log entry:
Remove optimization emitting a reference insted of label difference, since
it can create more relocations. Removed isBaseAddressKnownZero method,
because it is no longer used.

llvm-svn: 127540
 2011-03-12 13:07:37 +00:00
Owen Anderson
78afadfa5d Teach FastISel to support register-immediate-immediate instructions. 
llvm-svn: 127496
 2011-03-11 21:33:55 +00:00
Jim Grosbach
39476d9010 80 columns. 
llvm-svn: 127495
 2011-03-11 21:02:27 +00:00
Jim Grosbach
4ed235527d Trailing whitespace. 
llvm-svn: 127493
 2011-03-11 20:59:19 +00:00
Jan Sjödin
b58b9618ce Remove optimization emitting a reference insted of label difference, since it can create more relocations. Removed isBaseAddressKnownZero method, because it is no longer used. 
llvm-svn: 127478
 2011-03-11 19:37:02 +00:00
Rafael Espindola
a271db1a12 Add r127409 back now that the windows file was updated. 
llvm-svn: 127417
 2011-03-10 18:33:29 +00:00
Jakob Stoklund Olesen
891bfab351 Revert r127409 which broke all the Windows bots. 
llvm-svn: 127413
 2011-03-10 18:01:43 +00:00
Rafael Espindola
b7a2d86ef5 Add support for MemoryBuffers that are not null terminated and add 
support for creating buffers that cover only a part of a file.

llvm-svn: 127409
 2011-03-10 16:10:30 +00:00
Che-Liang Chiou
fc6c7ba9d5 ptx: add the rest of special registers of ISA version 2.0 
llvm-svn: 127397
 2011-03-10 04:05:57 +00:00
Jakob Stoklund Olesen
70541686bf Make SpillIs an optional pointer. Avoid creating a bunch of temporary SmallVectors. 
llvm-svn: 127388
 2011-03-10 01:21:58 +00:00
Devang Patel
73d68195ce Introduce DebugInfoProbe. This is used to monitor how llvm optimizer is treating debugging information. 
It generates output that lools like

8 times line number info lost by Scalar Replacement of Aggregates (SSAUp) 
1 times line number info lost by Simplify well-known library calls 
12 times variable info lost by Jump Threading

llvm-svn: 127381
 2011-03-10 00:21:25 +00:00
Evan Cheng
a3a7a7e364 Re-commit 127368 and 127371. They are exonerated. 
llvm-svn: 127380
 2011-03-10 00:16:32 +00:00
Evan Cheng
d7a2008a55 Revert 127368 and 127371 for now. 
llvm-svn: 127376
 2011-03-09 23:53:17 +00:00
Evan Cheng
c4a9f8a319 Restore the default implementation of getCrossCopyRegClass: no need for cross-regclass copies. 
llvm-svn: 127371
 2011-03-09 23:15:40 +00:00
Evan Cheng
b717770dfe Change the definition of TargetRegisterInfo::getCrossCopyRegClass to be more 
flexible.

If it returns a register class that's different from the input, then that's the
register class used for cross-register class copies.
If it returns a register class that's the same as the input, then no cross-
register class copies are needed (normal copies would do).
If it returns null, then it's not at all possible to copy registers of the
specified register class.

llvm-svn: 127368
 2011-03-09 22:47:38 +00:00
Jan Sjödin
c7c66d9f88 Add createELFObjectTargetWriter method to TargetAsmBackend, which enables construction of non-standard ELFObjectWriters that can be used in MCJIT. 
llvm-svn: 127346
 2011-03-09 18:44:41 +00:00
Jan Sjödin
6791bc64a2 Add constructors to MCElfStreamer and MCObjectStreamer to take an extra MCAssembler * argument. 
llvm-svn: 127343
 2011-03-09 17:33:05 +00:00
Jan Sjödin
7962eba596 Add InitializeNativeAsmParser function. 
llvm-svn: 127341
 2011-03-09 17:25:46 +00:00
John McCall
7ae7882159 Typo. Patch by arrowdodger. 
llvm-svn: 127256
 2011-03-08 18:01:22 +00:00
Chris Lattner
ea7b7189f5 fix incorrect comment. 
llvm-svn: 127252
 2011-03-08 16:59:03 +00:00