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34860 Commits

Author SHA1 Message Date
Benjamin Kramer
e59de5e9b0 Use an array instead of a SmallVector. 
llvm-svn: 92264
 2009-12-29 11:04:52 +00:00
Chris Lattner
d981b3fc91 remove a bunch of unneeded functions. 
llvm-svn: 92263
 2009-12-29 09:32:19 +00:00
Chris Lattner
430379c2d5 major cleanups, much of this file was incorrectly indented. 
llvm-svn: 92262
 2009-12-29 09:22:47 +00:00
Chris Lattner
f0034478f8 one pass of cleanup over DebugInfo.h. Much more is still needed. 
llvm-svn: 92261
 2009-12-29 09:15:46 +00:00
Chris Lattner
31895ba512 prune #includes. 
llvm-svn: 92260
 2009-12-29 09:12:29 +00:00
Chris Lattner
84e9de4a58 Final step in the metadata API restructuring: move the 
getMDKindID/getMDKindNames methods to LLVMContext (and add
convenience methods to Module), eliminating MetadataContext.
Move the state that it maintains out to LLVMContext.

llvm-svn: 92259
 2009-12-29 09:01:33 +00:00
Chris Lattner
a78c161348 remove useless argument. 
llvm-svn: 92256
 2009-12-29 08:03:58 +00:00
Chris Lattner
fde39fb4f6 privatize another interface. 
llvm-svn: 92255
 2009-12-29 07:56:15 +00:00
Chris Lattner
c39498971e the only call to this function (from clang) has been removed, zap it. 
llvm-svn: 92254
 2009-12-29 07:50:09 +00:00
Chris Lattner
dcc5032728 remove some unneeded Metadata interfaces. 
llvm-svn: 92252
 2009-12-29 07:44:16 +00:00
Chris Lattner
20668429a2 fix .cpp file to not wrap the entire file in namespace blocks. 
llvm-svn: 92250
 2009-12-29 07:28:33 +00:00
Chris Lattner
110fc20bd8 tidy up debug info comments, use ->isVoidTy() where reasonable. 
llvm-svn: 92249
 2009-12-29 07:25:48 +00:00
Sanjiv Gupta
543a6716fb Extern declaration for unordered.f32 libcall was not being emitted. Fixed that. 
llvm-svn: 92242
 2009-12-29 03:24:34 +00:00
Chris Lattner
e7990f78bf When doing v1->RAUW(v2), don't do anything to metadata. We don't know 
why one was replaced with the other.  Even in the specific case of 
debug information, it doesn't make sense to transfer the location over,
this will just result in jumbled loc info.

llvm-svn: 92241
 2009-12-29 02:53:52 +00:00
Chris Lattner
692c53dbf0 sink the Instruction::HasMetadata bit into SubclassData. 
llvm-svn: 92240
 2009-12-29 02:46:09 +00:00
Chris Lattner
2c82be93e6 add a layer of accessors around the Value::SubClassData member, and use 
a convention (shadowing the setter with private forwarding function) to
prevent subclasses from accidentally using it.

This exposed some bogosity in ConstantExprs, which was propaging the
opcode of the constant expr into the NUW/NSW/Exact field in the
getWithOperands/getWithOperandReplaced methods.

llvm-svn: 92239
 2009-12-29 02:14:09 +00:00
Chris Lattner
9ec640a902 This is a major cleanup of the instruction metadata interfaces that 
I asked Devang to do back on Sep 27.  Instead of going through the
MetadataContext class with methods like getMD() and getMDs(), just
ask the instruction directly for its metadata with getMetadata()
and getAllMetadata().

This includes a variety of other fixes and improvements: previously
all Value*'s were bloated because the HasMetadata bit was thrown into
value, adding a 9th bit to a byte.  Now this is properly sunk down to
the Instruction class (the only place where it makes sense) and it
will be folded away somewhere soon.

This also fixes some confusion in getMDs and its clients about 
whether the returned list is indexed by the MDID or densely packed.
This is now returned sorted and densely packed and the comments make
this clear.

This introduces a number of fixme's which I'll follow up on.

llvm-svn: 92235
 2009-12-28 23:41:32 +00:00
Chris Lattner
8ca10b9e64 add IRBuilder.cpp to cmake 
llvm-svn: 92233
 2009-12-28 21:52:41 +00:00
Chris Lattner
28de6cdbf5 remove #include of Function.h from IRBuilder 
llvm-svn: 92231
 2009-12-28 21:50:56 +00:00
Chris Lattner
e70c40e8ac move debug info stuff out of line, allowing two #includes 
to go away from IRBuilder.h

llvm-svn: 92230
 2009-12-28 21:45:40 +00:00
Chris Lattner
e0b9847223 split code that doesn't need to be templated out of IRBuilder into a new 
non-templated IRBuilderBase class.  Move that large CreateGlobalString
out of line, eliminating the need to #include GlobalVariable.h in IRBuilder.h

llvm-svn: 92227
 2009-12-28 21:28:46 +00:00
Chris Lattner
cd3aa9d1ff rename getMDKind -> getMDKindID, make it autoinsert if an MD Kind 
doesn't exist already, eliminate registerMDKind.  Tidy up a bunch
of random stuff.

llvm-svn: 92225
 2009-12-28 20:45:51 +00:00
Chris Lattner
2b65f2d7d4 rename getHandlerNames to getMDKindNames, simplify its interface 
and simplify all the clients that use it.

llvm-svn: 92224
 2009-12-28 20:10:43 +00:00
Chris Lattner
5420d062f6 tidy up and delete a dead smallvector. 
llvm-svn: 92223
 2009-12-28 19:49:00 +00:00
Benjamin Kramer
798349c4d1 Add missing include (for inline PATypeHolder::get). 
llvm-svn: 92222
 2009-12-28 12:27:56 +00:00
Chris Lattner
8c6fbdc63e avoid a completely unneeded linear walk. 
llvm-svn: 92221
 2009-12-28 09:32:10 +00:00
Chris Lattner
9229f79945 Eliminate two bits of ugliness in MDNode::replaceElement: 
eliminate the temporary smallvector, and only do FindNodeOrInsertPos
twice if the first one succeeds and we delete a node.

llvm-svn: 92220
 2009-12-28 09:24:53 +00:00
Chris Lattner
e36f3cf0ca rearrange some methods, no functionality change. 
llvm-svn: 92219
 2009-12-28 09:12:35 +00:00
Chris Lattner
2cfabb2151 avoid temporary CallbackVH's. 
llvm-svn: 92218
 2009-12-28 09:10:16 +00:00
Chris Lattner
14d3bc91c4 Rewrite the function-local validation logic for MDNodes (most of r91708). 
Among other benefits, this doesn't leak the SmallPtrSet, has the verifier
code in the verifier pass, actually does the verification at the end,
and is considerably simpler.

llvm-svn: 92217
 2009-12-28 09:07:21 +00:00
Chris Lattner
fcc7918518 rename MDNode instance variables to something meaningful. 
llvm-svn: 92216
 2009-12-28 08:48:12 +00:00
Chris Lattner
2f436b213d snip one more #include from Metadata.h 
llvm-svn: 92214
 2009-12-28 08:30:43 +00:00
Chris Lattner
77f471055d prune some #includes 
llvm-svn: 92212
 2009-12-28 08:24:16 +00:00
Chris Lattner
6dd4686b48 Metadata.h doesn't need to include ValueHandle.h anymore. 
llvm-svn: 92211
 2009-12-28 08:20:46 +00:00
Chris Lattner
739292d361 change the strange MetadataContext::getMDs function to expose less 
irrelevant internal implementation details to clients.

llvm-svn: 92210
 2009-12-28 08:14:54 +00:00
Chris Lattner
4967dbad20 change NamedMDNode to use a pimpl for its operand list instead 
of making it a declared part of the value.

llvm-svn: 92209
 2009-12-28 08:07:14 +00:00
Chris Lattner
0a47dbff64 eliminate the elem_* iterator stuff from NamedMDNode. 
llvm-svn: 92208
 2009-12-28 07:57:01 +00:00
Chris Lattner
19c825e082 move ElementVH out of the MDNode class into the MDNode.cpp file. Among 
other things, this avoids vtable and rtti data for it being splatted in 
every translation unit that uses it.

llvm-svn: 92207
 2009-12-28 07:41:54 +00:00
Chris Lattner
62ba56ca23 move these out of their own timer groups into the 'uncategorized' groups. 
llvm-svn: 92206
 2009-12-28 07:41:18 +00:00
Sanjiv Gupta
efad5b2a93 Fixed llc crash for zext (i1 -> i8) loads. 
llvm-svn: 92201
 2009-12-28 04:53:24 +00:00
Sanjiv Gupta
d17915f6f0 Allow targets to specify the return type of libcalls that are generated for floating point comparisons, rather than hard-coding them as i32. 
llvm-svn: 92199
 2009-12-28 02:40:33 +00:00
Bill Wendling
5457c30e95 Mark variable used by 'assert' as 'unused'. 
llvm-svn: 92198
 2009-12-28 02:07:00 +00:00
Bill Wendling
a717566a5c Remove dead variable. 
llvm-svn: 92197
 2009-12-28 02:05:36 +00:00
Bill Wendling
6904b5a782 Remove dead variable. 
llvm-svn: 92196
 2009-12-28 02:04:53 +00:00
Bill Wendling
da542f1b43 Remove dead variable. 
llvm-svn: 92195
 2009-12-28 02:01:06 +00:00
Bill Wendling
4f58b72e9e Remove dead variable. 
llvm-svn: 92194
 2009-12-28 02:00:30 +00:00
Bill Wendling
4e43e78b2e Remove dead variable. 
llvm-svn: 92193
 2009-12-28 01:57:39 +00:00
Bill Wendling
3f3f9a1bc8 Remove dead store. 
llvm-svn: 92192
 2009-12-28 01:54:15 +00:00
Bill Wendling
32467ad0f7 Remove dead store and simplify code. 
llvm-svn: 92191
 2009-12-28 01:53:00 +00:00
Bill Wendling
3fbb708d4f Remove dead store. 
llvm-svn: 92190
 2009-12-28 01:51:30 +00:00
Bill Wendling
08d36672e1 Remove dead variable. 
llvm-svn: 92189
 2009-12-28 01:48:56 +00:00
Bill Wendling
5badb477fa Remove dead variable. 
llvm-svn: 92188
 2009-12-28 01:47:48 +00:00
Bill Wendling
6f5d4b9eb6 Remove dead store. 
llvm-svn: 92187
 2009-12-28 01:44:39 +00:00
Bill Wendling
8042a829e5 Remove dead variable. 
llvm-svn: 92186
 2009-12-28 01:42:12 +00:00
Bill Wendling
0eae096c38 Remove dead variable. 
llvm-svn: 92185
 2009-12-28 01:41:12 +00:00
Bill Wendling
b96be04b8a Remove dead variable. 
llvm-svn: 92184
 2009-12-28 01:36:02 +00:00
Bill Wendling
ae29dded44 Remove dead store. The initial value was never used, but always overridden. 
llvm-svn: 92182
 2009-12-28 01:31:11 +00:00
Bill Wendling
baec6e54f4 Add an "ATTRIBUTE_UNUSED" macro (and use it). It's for variables which are 
mainly used in debugging and/or assert situations. It should make the compiler
and the static analyzer stop nagging us about them.

llvm-svn: 92181
 2009-12-28 01:20:29 +00:00
Bill Wendling
008e2e1e7f Remove dead variable. 
llvm-svn: 92180
 2009-12-28 01:02:21 +00:00
Bill Wendling
8d5a69f960 Remove dead variable. 
llvm-svn: 92179
 2009-12-28 01:01:14 +00:00
Bill Wendling
091861587d Remove dead variable. 
llvm-svn: 92178
 2009-12-28 01:00:12 +00:00
Eli Friedman
3a53d1cb1a PR5886: Make sure IMUL32m is marked as setting EFLAGS, so scheduling doesn't 
do illegal stuff around it.  No testcase because the issue is very fragile.

llvm-svn: 92167
 2009-12-26 20:08:30 +00:00
Bill Wendling
c49babee26 Avoid assigning to Changed when it won't be used after the return. 
llvm-svn: 92160
 2009-12-25 13:50:18 +00:00
Bill Wendling
f3d0708729 Remove dead store. 
llvm-svn: 92159
 2009-12-25 13:45:50 +00:00
Bill Wendling
8273efdd31 Remove dead store from copy-pasto. 
llvm-svn: 92158
 2009-12-25 13:44:36 +00:00
Bill Wendling
736d9ee6b8 Remove dead store. 
llvm-svn: 92157
 2009-12-25 13:39:58 +00:00
Bill Wendling
32e19f65c4 Remove dead store. 
llvm-svn: 92156
 2009-12-25 13:37:27 +00:00
John McCall
75f1b8beeb Implement support for converting to string at "natural precision", and fix some 
major bugs in long-precision conversion.

llvm-svn: 92150
 2009-12-24 23:18:09 +00:00
John McCall
c6cdebbedd Substantially optimize APFloat::toString() by doing a single large divide to 
cut the significand down to the desired precision *before* entering the
core divmod loop.  Makes the overall algorithm logarithmic in the exponent.

There's still a lot of room for improvement here, but this gets the
performance back down to acceptable-for-diagnostics levels, even for
long doubles.
negligible, even on long doubles.

llvm-svn: 92130
 2009-12-24 12:16:56 +00:00
John McCall
c71c44ec7f Add accessors for the largest-magnitude, smallest-magnitude, and 
smallest-normalized-magnitude values in a given FP semantics.
Provide an APFloat-to-string conversion which I am quite ready to admit could
be much more efficient.

llvm-svn: 92126
 2009-12-24 08:56:26 +00:00
John McCall
dad4e2e4e5 Set Remainder before Quotient in case Quotient and LHS alias. The new 
order should be immune to such problems.

llvm-svn: 92124
 2009-12-24 08:52:06 +00:00
Chris Lattner
4e96d36f72 handle equality memcmp of 8 bytes on x86-64 with two unaligned loads and a 
compare.  On other targets we end up with a call to memcmp because we don't
want 16 individual byte loads.  We should be able to use movups as well, but
we're failing to select the generated icmp.

llvm-svn: 92107
 2009-12-24 01:07:17 +00:00
David Greene
12d565aa89 Change errs() to dbgs(). 
llvm-svn: 92099
 2009-12-24 00:39:02 +00:00
Chris Lattner
5d3919d5f9 move an optimization for memcmp out of simplifylibcalls and into 
SDISel.  This optimization was causing simplifylibcalls to 
introduce type-unsafe nastiness.  This is the first step, I'll be 
expanding the memcmp optimizations shortly, covering things that
we really really wouldn't want simplifylibcalls to do.

llvm-svn: 92098
 2009-12-24 00:37:38 +00:00
David Greene
48aa5efa78 Change errs() to dbgs(). 
llvm-svn: 92097
 2009-12-24 00:34:21 +00:00
David Greene
42be8783c0 Change errs() to dbgs(). 
llvm-svn: 92096
 2009-12-24 00:31:35 +00:00
David Greene
f215ecfc4d Change errs() to dbgs(). 
llvm-svn: 92094
 2009-12-24 00:27:55 +00:00
David Greene
d91c862004 Change errs() to dbgs(). 
llvm-svn: 92093
 2009-12-24 00:14:25 +00:00
David Greene
7d1f350ec6 Change errs() to dbgs(). 
llvm-svn: 92092
 2009-12-24 00:06:26 +00:00
David Greene
06d50ca292 Change errs() to dbgs(). 
llvm-svn: 92091
 2009-12-23 23:47:53 +00:00
David Greene
82413e3a13 Change errs() to dbgs(). 
llvm-svn: 92088
 2009-12-23 23:38:28 +00:00
David Greene
c0eced92e3 Change dbgs() back to errs() as Chris requested. 
llvm-svn: 92086
 2009-12-23 23:29:28 +00:00
David Greene
693db7a309 Change dbgs() back to errs() as Chris requested. 
llvm-svn: 92085
 2009-12-23 23:27:15 +00:00
Chris Lattner
7dbb93e430 reorder to follow a normal fall-through style, no functionality change. 
llvm-svn: 92084
 2009-12-23 23:24:51 +00:00
David Greene
9c8c8af11d Clarify how dbgs() operates. 
llvm-svn: 92083
 2009-12-23 23:23:15 +00:00
David Greene
0c06474821 Change dbgs() back to errs() for assert messages as Chris requested. 
llvm-svn: 92081
 2009-12-23 23:14:41 +00:00
David Greene
5980bb69ba Change dbgs() back to errs() for assert messages as Chris requested. 
llvm-svn: 92080
 2009-12-23 23:09:39 +00:00
Chris Lattner
0f8308d48a sizeof(char) is always 1. 
llvm-svn: 92079
 2009-12-23 23:03:24 +00:00
David Greene
b73d637eba Change dbgs() back to errs() for assert messages as Chris requested. 
llvm-svn: 92077
 2009-12-23 23:00:50 +00:00
David Greene
f227aac0f4 Change dbgs() back to errs() for assert messages as Chris requested. 
llvm-svn: 92076
 2009-12-23 22:59:29 +00:00
David Greene
1b160211dd Remove dump routine and the associated Debug.h from a header. Patch up 
other files to compensate.

llvm-svn: 92075
 2009-12-23 22:58:38 +00:00
David Greene
dafe3d88d6 Change dbgs() back to errs() as Chris requested. 
llvm-svn: 92073
 2009-12-23 22:49:57 +00:00
David Greene
02480b7d83 Convert debug messages to use dbgs(). Generally this means 
s/errs/dbgs/g except for certain special cases.

llvm-svn: 92071
 2009-12-23 22:35:10 +00:00
David Greene
b348240e9c Convert debug messages to use dbgs(). Generally this means 
s/errs/dbgs/g except for certain special cases.

llvm-svn: 92068
 2009-12-23 22:28:01 +00:00
David Greene
62d4863b56 Convert debug messages to use dbgs(). Generally this means 
s/errs/dbgs/g except for certain special cases.

llvm-svn: 92067
 2009-12-23 22:18:14 +00:00
David Greene
f2377def25 Convert debug messages to use dbgs(). Generally this means 
s/errs/dbgs/g except for certain special cases.

llvm-svn: 92066
 2009-12-23 22:10:20 +00:00
David Greene
fc8ae247eb Convert debug messages to use dbgs(). Generally this means 
s/errs/dbgs/g except for certain special cases.

llvm-svn: 92063
 2009-12-23 21:58:29 +00:00
David Greene
4caa552456 Convert debug messages to use dbgs(). Generally this means 
s/errs/dbgs/g except for certain special cases.

llvm-svn: 92060
 2009-12-23 21:48:18 +00:00
Jakob Stoklund Olesen
e82ce92826 Move kill flags when the same register occurs more than once in a sequence. 
llvm-svn: 92058
 2009-12-23 21:34:03 +00:00
Jakob Stoklund Olesen
17a89f1f8a Handle undef operands properly. 
llvm-svn: 92054
 2009-12-23 21:28:42 +00:00
Jakob Stoklund Olesen
f18e89a0bf Make insert position available to MergeOpsUpdate. 
Rearrange arguments.
No functional changes

llvm-svn: 92053
 2009-12-23 21:28:37 +00:00
Jakob Stoklund Olesen
55c03c7cef Perform kill flag calculations in new method. No functional changes. 
llvm-svn: 92052
 2009-12-23 21:28:31 +00:00
Jakob Stoklund Olesen
423f1e70e6 Move repeated code to a new method. No functional change. 
llvm-svn: 92051
 2009-12-23 21:28:23 +00:00
David Greene
c8b577197f Convert debug messages to use dbgs(). Generally this means 
s/errs/dbgs/g except for certain special cases.

llvm-svn: 92050
 2009-12-23 21:27:29 +00:00
David Greene
fd7042fa79 Convert debug messages to use dbgs(). Generally this means 
s/errs/dbgs/g except for certain special cases.

llvm-svn: 92048
 2009-12-23 21:16:54 +00:00
David Greene
28b8bcd98d Convert debug messages to use dbgs(). Generally this means 
s/errs/dbgs/g except for certain special cases.

llvm-svn: 92046
 2009-12-23 21:06:14 +00:00
David Greene
33f717c804 Convert debug messages to use dbgs(). Generally this means 
s/errs/dbgs/g except for certain special cases.

llvm-svn: 92042
 2009-12-23 20:52:41 +00:00
David Greene
016e0af68d Convert debug messages to use dbgs(). Generally this means 
s/errs/dbgs/g except for certain special cases.

llvm-svn: 92040
 2009-12-23 20:43:58 +00:00
David Greene
1c88ae8f15 Convert debug messages to use dbgs(). Generally this means 
s/errs/dbgs/g except for certain special cases.

llvm-svn: 92039
 2009-12-23 20:34:27 +00:00
David Greene
e34eb9cc32 Convert debug messages to use dbgs(). Generally this means 
s/errs/dbgs/g except for certain special cases.

llvm-svn: 92037
 2009-12-23 20:20:46 +00:00
David Greene
a2539e0ff7 Convert debug messages to use dbgs(). Generally this means 
s/errs/dbgs/g except for certain special cases.

llvm-svn: 92035
 2009-12-23 20:10:59 +00:00
David Greene
2a072c7ac5 Convert debug messages to use dbgs(). Generally this means 
s/errs/dbgs/g except for certain special cases.

llvm-svn: 92034
 2009-12-23 20:03:58 +00:00
David Greene
218c909299 Convert debug messages to use dbgs(). Generally this means 
s/errs/dbgs/g except for certain special cases.

llvm-svn: 92033
 2009-12-23 19:51:44 +00:00
David Greene
bcfb683e76 Convert debug messages to use dbgs(). Generally this means 
s/errs/dbgs/g except for certain special cases.

llvm-svn: 92032
 2009-12-23 19:45:49 +00:00
David Greene
b7dde86ae2 Convert debug messages to use dbgs(). Generally this means 
s/errs/dbgs/g except for certain special cases.

llvm-svn: 92029
 2009-12-23 19:27:59 +00:00
David Greene
f0082114af Convert debug messages to use dbgs(). Generally this means 
s/errs/dbgs/g except for certain special cases.

llvm-svn: 92026
 2009-12-23 19:21:19 +00:00
David Greene
4d8f4303bd Convert debug messages to use dbgs(). Generally this means 
s/errs/dbgs/g except for certain special cases.

llvm-svn: 92024
 2009-12-23 19:15:13 +00:00
Douglas Gregor
0f306eba2f Alternative fix to make sure that the extern declarations used by 
DynamicLibrary::SearchForAddressOfSymbol refer to declarations in the
global namespace.

llvm-svn: 92023
 2009-12-23 19:12:50 +00:00
Douglas Gregor
44f2fe915f Revert 92020 until I figure out a more portable fix 
llvm-svn: 92021
 2009-12-23 19:04:10 +00:00
Douglas Gregor
9f306d1b18 Move the extern symbol declarations outside of 
DynamicLibrary::SearchForAddressOfSymbol and force them to have "C"
linkage. 

Interestingly, GCC treats the block-scoped "extern" declarations we
previously had as if they were extern "C" declarations (or, at least,
were in the global namespace), so that GCC bug papered over this LLVM
bug. Clang and EDG get the linkage correct; this new variant seems to
work for both GCC and Clang.

llvm-svn: 92020
 2009-12-23 18:56:27 +00:00
Nuno Lopes
6abe311a0f move a few more symbols to .rodata 
llvm-svn: 92011
 2009-12-23 17:48:10 +00:00
Douglas Gregor
37e54f9d4d De-bork CMake build 
llvm-svn: 92003
 2009-12-23 17:03:46 +00:00
David Greene
3f7cf289ed Provide dbgs(), a circular-buffering debug output stream. By default it 
simply passes output to errs().  If -debug-buffer-size=N is set N > 0,
dbgs() buffers its output until program termination and dumps the last N
characters sent to it.  This is handy when debugging very large inputs.

llvm-svn: 92002
 2009-12-23 16:39:06 +00:00
David Greene
f1f78a15e1 Add circular_raw_ostream, which buffers its output in a circular queue 
and outputs it when explicitly flushed.  The intent is to use it in
situations such as debug output logging where a signal handler can take
care of flushing the buffer at program termination.

llvm-svn: 92001
 2009-12-23 16:08:15 +00:00
Sanjiv Gupta
7872817f59 Reapply 91904. 
llvm-svn: 91996
 2009-12-23 11:19:09 +00:00
Sanjiv Gupta
1d6f359867 Added missing patterns for subtract instruction. 
llvm-svn: 91995
 2009-12-23 10:56:02 +00:00
Sanjiv Gupta
70e1523215 Reverting back 91904. 
llvm-svn: 91993
 2009-12-23 09:46:01 +00:00
Dale Johannesen
b4485fd8a9 Use more sensible type for flags in asms. PR 5570. 
Patch by Sylve`re Teissier (sorry, ASCII only).

llvm-svn: 91988
 2009-12-23 07:32:51 +00:00
Eric Christopher
ce677a909d Update objectsize intrinsic and associated dependencies. Fix 
lowering code and update testcases.

llvm-svn: 91979
 2009-12-23 02:51:48 +00:00
Chris Lattner
f77ca5f9f5 really remove the instruction, don't just comment it out 
llvm-svn: 91976
 2009-12-23 01:46:40 +00:00
Chris Lattner
d7e8bd73fe completely eliminate the MOV16r0 'instruction'. The only 
interesting part of this is the divrem changes, which are
already tested by CodeGen/X86/divrem.ll.

llvm-svn: 91975
 2009-12-23 01:45:04 +00:00
Sean Callanan
0c1d56a0c8 More fixes for Visual C++. Replaced several very small 
static inline functions with macros.

llvm-svn: 91973
 2009-12-23 01:32:29 +00:00
Chris Lattner
dbcf2725aa stop pattern matching 16-bit zero's of a register to MOV16r0, 
instead use the appropriate subreggy thing.  This generates identical
code on some large apps (thanks to Evan's cross class coalescing
stuff he did back in july).  This means that MOV16r0 can go away
completely in the future soon.

llvm-svn: 91972
 2009-12-23 01:30:26 +00:00
Bill Wendling
ce8aa5aab2 Remove superfluous SDNode ordering. 
llvm-svn: 91971
 2009-12-23 01:28:19 +00:00
Bill Wendling
e7107691df Remove node ordering from inline asm nodes. It's not needed. 
llvm-svn: 91961
 2009-12-23 00:47:20 +00:00
Bill Wendling
d5577d5bdc Remove node ordering from VA nodes. It's not needed. 
llvm-svn: 91958
 2009-12-23 00:44:51 +00:00
Bill Wendling
3154bbba16 Revert r91949 r91942 and r91936. 
llvm-svn: 91953
 2009-12-23 00:28:23 +00:00
Bill Wendling
d38b774149 Finish up node ordering in ExpandNode. 
llvm-svn: 91949
 2009-12-23 00:05:09 +00:00
Jakob Stoklund Olesen
c971898a40 Add coalescer asserts. 
llvm-svn: 91945
 2009-12-22 23:54:54 +00:00
Jakob Stoklund Olesen
9d1c8ecf05 Add a SPR register class to the ARM target. 
Certain Thumb instructions require only SP (e.g. tSTRspi).

llvm-svn: 91944
 2009-12-22 23:54:44 +00:00
Jeffrey Yasskin
0c46d96fd0 Partially revert r91626. Materializing extra functions to determine whether 
they're available_externally broke VMKit, which was relying on the fact that
functions would only be materialized when they were first called.  We'll have
to wait for http://llvm.org/PR5737 to really fix this.

I also added a test for one of the F->isDeclaration() calls which wasn't
covered by anything else in the test suite.

llvm-svn: 91943
 2009-12-22 23:47:23 +00:00
Bill Wendling
68e8f657a2 Assign ordering to nodes created in ExpandNode. Only roughly 1/2 of the function 
is finished.

llvm-svn: 91942
 2009-12-22 23:44:56 +00:00
Jeffrey Yasskin
412172866e Fix a crash in JIT::recompileAndRelinkFunction(). It doesn't pass the MCI 
argument to runJITOnFunction(), which caused a null pointer dereference at
every call.

Patch by Gianluca Guida!

llvm-svn: 91939
 2009-12-22 23:18:18 +00:00
Bill Wendling
12c3fc9d60 Assign ordering to SDNodes in PromoteNode. Also fixing a subtle bug where BSWAP 
was using "Tmp1" in the first getNode call instead of Node->getOperand(0).

llvm-svn: 91936
 2009-12-22 22:53:39 +00:00
Sean Callanan
3ccfaafab6 Removed the "inline" keyword from the disassembler decoder, 
because the Visual C++ build does not build .c files as C99

llvm-svn: 91935
 2009-12-22 22:51:40 +00:00
Jakob Stoklund Olesen
47b4d6387f Remove minimal CFG sanity checks from verifier. 
These checks would often trigger on unreachable statements inserted by
bugpoint, leading it astray.

It would be nice if we could distinguish unreachable blocks from errors.

llvm-svn: 91923
 2009-12-22 21:52:27 +00:00
Jakob Stoklund Olesen
d9cec1fbf7 Allow explicit %reg0 operands beyond what the .td file describes. 
ARM uses these to indicate predicates.

llvm-svn: 91922
 2009-12-22 21:48:20 +00:00
Bill Wendling
237cb134ed Allow 0 as an order number. Don't assign an order to formal arguments. 
llvm-svn: 91920
 2009-12-22 21:35:02 +00:00
Sean Callanan
983f906451 Fixes to the X86 disassembler: 
Made LEA memory operands emit only 4 MCInst operands.
Made the scale operand equal 1 for instructions that have no
SIB byte.

llvm-svn: 91919
 2009-12-22 21:12:55 +00:00
Chris Lattner
4a7bce50b8 Fix the Convert to scalar to not insert dead loads in the store case. The 
load is needed when we have a small store into a large alloca (at which 
point we get a load/insert/store sequence), but when you do a full-sized
store, this load ends up being dead.

This dead load is bad in really large nasty testcases where the load ends
up causing mem2reg to insert large chains of dependent phi nodes which only
ADCE can delete.  Instead of doing this, just don't insert the dead load.

This fixes rdar://6864035

llvm-svn: 91917
 2009-12-22 19:33:28 +00:00
Chris Lattner
0fbb62fcc5 fix some fixme's by using twines 
llvm-svn: 91916
 2009-12-22 19:23:33 +00:00
Jakob Stoklund Olesen
affe25dbaf Use proper move instructions. Make the verifier happy. 
llvm-svn: 91914
 2009-12-22 18:49:55 +00:00
Bob Wilson
c19003bca7 Report an error for bad inline assembly, where the value passed for an 
"indirect" operand is not a pointer.

llvm-svn: 91913
 2009-12-22 18:34:19 +00:00
Evan Cheng
7cd6bfe549 Remove target attribute break-sse-dep. Instead, do not fold load into sse partial update instructions unless optimizing for size. 
llvm-svn: 91910
 2009-12-22 17:47:23 +00:00
Douglas Gregor
0590ad1884 Include based on the current path, since we already -I the X86 target's path. Fixes CMake build 
llvm-svn: 91908
 2009-12-22 17:25:11 +00:00
Sanjiv Gupta
9581b4dc62 While converting one of the operands to a memory operand, we need to check if it is Legal and does not result into a cyclic dep. 
llvm-svn: 91904
 2009-12-22 14:25:37 +00:00
Bob Wilson
0dc93264b1 Generalize SROA to allow the first index of a GEP to be non-zero. Add a 
missing check that an array reference doesn't go past the end of the array,
and remove some redundant checks for in-bound array and vector references
that are no longer needed.

llvm-svn: 91897
 2009-12-22 06:57:14 +00:00
Chris Lattner
4e30207029 Implement PR5795 by merging duplicated return blocks. This could go further 
by merging all returns in a function into a single one, but simplifycfg 
currently likes to duplicate the return (an unfortunate choice!)

llvm-svn: 91890
 2009-12-22 06:07:30 +00:00
Chris Lattner
cd79ebb23c The phi translated pointer can be computed when returning a partially cached result 
instead of stored.  This reduces memdep memory usage, and also eliminates a bunch of
weakvh's.  This speeds up gvn on gcc.c-torture/20001226-1.c from 23.9s to 8.45s (2.8x)
on a different machine than earlier.

llvm-svn: 91885
 2009-12-22 04:25:02 +00:00
Bill Wendling
fc4c238bd5 Add more plumbing. This time in the LowerArguments and "get" functions which 
return partial registers. This affected the back-end lowering code some.

Also patch up some places I missed before in the "get" functions.

llvm-svn: 91880
 2009-12-22 02:10:19 +00:00
Sean Callanan
09b2d80d2c Changed REG_* to MODRM_REG_* to avoid conflicts 
with symbols in AuroraUX's global namespace.

llvm-svn: 91879
 2009-12-22 02:07:42 +00:00
Daniel Dunbar
abb0af5166 Fix some may-be-uninitialized var warnings. 
llvm-svn: 91878
 2009-12-22 01:41:37 +00:00
Bill Wendling
5aff4bce9d Add SDNode ordering to inlined asm and VA functions. 
llvm-svn: 91876
 2009-12-22 01:25:10 +00:00
Eric Christopher
c1b128aa04 Whitespace fixes. 
llvm-svn: 91875
 2009-12-22 01:23:51 +00:00
Bill Wendling
b0bd44f096 Adding more assignment of ordering to SDNodes. This time in the "call" and 
generic copy functions.

llvm-svn: 91872
 2009-12-22 01:11:43 +00:00
Sean Callanan
feddcdf843 Fixed library dependencies between the X86 disassembler and 
X86 codegen that were causing circular symbol dependencies.

llvm-svn: 91871
 2009-12-22 01:11:26 +00:00
Chris Lattner
15c2988820 avoid calling extractMallocCall when it's obvious we don't have 
a call.  This speeds up memdep ~1.5%

llvm-svn: 91869
 2009-12-22 01:00:32 +00:00
Bill Wendling
e01ea21d47 Add ordering of SDNodes to LowerCallTo. 
llvm-svn: 91866
 2009-12-22 00:50:32 +00:00
Chris Lattner
0651fc828b print pcrel immediates as signed values instead of unsigned so that we 
get things like this out of the disassembler:

0x100000ecb: callq	-96

instead of:

0x100000ecb: callq	4294967200

rdar://7491123

llvm-svn: 91864
 2009-12-22 00:44:05 +00:00
Bill Wendling
761507cdcc Now add ordering to SDNodes created by the massive intrinsic lowering function. 
llvm-svn: 91863
 2009-12-22 00:40:51 +00:00
Bill Wendling
d5649e184e To make things interesting, I added MORE code to set the ordering of 
SDNodes. This time in the load/store and limited-precision code.

llvm-svn: 91860
 2009-12-22 00:12:37 +00:00
Lang Hames
64d9eb0c06 Changed slot index ranges for MachineBasicBlocks to be exclusive of endpoint. 
This fixes an in-place update bug where code inserted at the end of basic blocks may not be covered by existing intervals which were live across the entire block. It is also consistent with the way ranges are specified for live intervals.

llvm-svn: 91859
 2009-12-22 00:11:50 +00:00
Bill Wendling
88d8eb621b Add more plumbing to assign ordering to SDNodes. Have the "getValue" method 
assign the ordering when called. Combine some of the ordering assignments to
keep things simple.

llvm-svn: 91857
 2009-12-21 23:47:40 +00:00
Daniel Dunbar
8efbce934e Add suggested parentheses. 
llvm-svn: 91853
 2009-12-21 23:27:57 +00:00
Chris Lattner
8bd3f74d82 Add a fastpath to Load GVN to special case when we have exactly one dominating 
load to avoid even messing around with SSAUpdate at all.  In this case (which
is very common, we can just use the input value directly).

This speeds up GVN time on gcc.c-torture/20001226-1.c from 36.4s to 16.3s,
which still isn't great, but substantially better and this is a simple speedup
that applies to lots of different cases.

llvm-svn: 91851
 2009-12-21 23:15:48 +00:00
Bill Wendling
576a9ae88d More ordering plumbing. This time for GEP. I need to remember to assign 
orderings to values returned by getValue().

llvm-svn: 91850
 2009-12-21 23:10:19 +00:00
Chris Lattner
41cad2092d refactor some code out to a new helper method. 
llvm-svn: 91849
 2009-12-21 23:04:33 +00:00
Chris Lattner
1cbad45619 improve indentation avoid a pointless conversion from weakvh to trackingvh, 
no functionality change.

llvm-svn: 91848
 2009-12-21 22:43:03 +00:00
Bill Wendling
85f5cca691 Another incremental check-in for assigning ordering to SDNodes. This time for 
shuffle and insert vector.

llvm-svn: 91847
 2009-12-21 22:42:14 +00:00
Bill Wendling
9a0bd2daca Assign ordering to more instructions. Incremental check-in. 
llvm-svn: 91846
 2009-12-21 22:30:11 +00:00
Bill Wendling
97d31ee226 - Add a bit more plumbing assigning an order to SDNodes. 
- Modify the "dump" method to emit the order of an SDNode.

llvm-svn: 91845
 2009-12-21 21:59:52 +00:00
Anton Korobeynikov
89d281c7c3 Mark FPW as allocable when frame address is taken. 
llvm-svn: 91841
 2009-12-21 20:18:49 +00:00
Bill Wendling
2d7ea292a6 First wave of plumbing for assigning an ordering to SDNodes. This takes care of 
a lot of the branching instructions.

llvm-svn: 91838
 2009-12-21 19:59:38 +00:00
Evan Cheng
c46a0ba3fc Delete the instruction just before the function terminates for consistency sake. 
llvm-svn: 91836
 2009-12-21 19:53:39 +00:00
Bill Wendling
ecb9172c96 Place SDNodeOrdering.h in the directory it's used. 
llvm-svn: 91834
 2009-12-21 19:34:59 +00:00
Bob Wilson
eb77079db5 Remove special-case SROA optimization of variable indexes to one-element and 
two-element arrays.  After restructuring the SROA code, it was not safe to
do this without adding more checking.  It is not clear that this special-case
has really been useful, and removing this simplifies the code quite a bit.

llvm-svn: 91828
 2009-12-21 18:39:47 +00:00
Eric Christopher
5c812e2396 Fix setting and default setting of code model for jit. Do this 
by allowing backends to override routines that will default
the JIT and Static code generation to an appropriate code model
for the architecture.

Should fix PR 5773.

llvm-svn: 91824
 2009-12-21 08:15:29 +00:00
Eli Friedman
50c8e9154f A couple minor README updates. 
llvm-svn: 91823
 2009-12-21 08:03:16 +00:00
Chris Lattner
cd9fb503c8 revert r89298, which was committed without a testcase. I think 
the underlying PHI node insertion issue in SSAUpdate is fixed.

llvm-svn: 91821
 2009-12-21 07:45:57 +00:00
Chris Lattner
c54fd1e777 fix PR5837 by having SSAUpdate reuse phi nodes for the 
'GetValueInMiddleOfBlock' case, instead of inserting 
duplicates.

A similar fix is almost certainly needed by the machine-level
SSAUpdate implementation.

llvm-svn: 91820
 2009-12-21 07:16:11 +00:00
Chris Lattner
c9bfe8679e give instcombine some helper functions for matching MIN and MAX, and 
implement some optimizations for MIN(MIN()) and MAX(MAX()) and 
MIN(MAX()) etc.  This substantially improves the code in PR5822 but
doesn't kick in much elsewhere.  2 max's were optimized in 
pairlocalalign and one in smg2000.

llvm-svn: 91814
 2009-12-21 06:03:05 +00:00
Chris Lattner
f1474e1761 enhance x-(-A) -> x+A to preserve NUW/NSW. 
Use the presence of NSW/NUW to fold "icmp (x+cst), x" to a constant in
cases where it would otherwise be undefined behavior.

Surprisingly (to me at least), this triggers hundreds of the times in
a few benchmarks: lencode, ldecode, and 466.h264ref seem to *really*
like this.

llvm-svn: 91812
 2009-12-21 04:04:05 +00:00
Chris Lattner
d34eb29977 Optimize all cases of "icmp (X+Cst), X" to something simpler. This triggers 
a bunch in lencode, ldecod, spass, 176.gcc, 252.eon, among others.  It is 
also the first part of PR5822

llvm-svn: 91811
 2009-12-21 03:19:28 +00:00
Chris Lattner
07f0e8ec8a fix an overly conservative caching issue that caused memdep to 
cache a pointer as being unavailable due to phi trans in the
wrong place.  This would cause later queries to fail even when
they didn't involve phi trans.

llvm-svn: 91787
 2009-12-19 21:29:22 +00:00
Daniel Dunbar
d170badffe Remove unused variable (noticed by clang++). 
llvm-svn: 91780
 2009-12-19 18:58:49 +00:00
Daniel Dunbar
758730a9e9 #if 0 out X86 disassembler for now, it is breaking the build in multiple places. 
llvm-svn: 91778
 2009-12-19 17:11:53 +00:00
Sanjiv Gupta
14c9f2ed42 Emit direction operand in binary insns that stores in memory. 
llvm-svn: 91777
 2009-12-19 13:52:01 +00:00
Nuno Lopes
78f040fa26 rename dprintf to dbgpritnf, in order to fix build with glibc (which already defines dprintf in stdio.h 
llvm-svn: 91775
 2009-12-19 12:07:00 +00:00
Sanjiv Gupta
65927cebf8 1. In indirect load/store insns , the name of fsr should be emitted as INDF. 
2. include standard asmbly headers in generated asmbly.

llvm-svn: 91768
 2009-12-19 08:26:25 +00:00
Douglas Gregor
f39dd74a3f Fix a bunch of little errors that Clang complains about when its being pedantic 
llvm-svn: 91764
 2009-12-19 07:05:23 +00:00
Chris Lattner
d9bf69f1a5 fix PR5827 by disabling the phi slicing transformation in a case 
where instcombine would have to split a critical edge due to a
phi node of an invoke.  Since instcombine can't change the CFG,
it has to bail out from doing the transformation.

llvm-svn: 91763
 2009-12-19 07:01:15 +00:00
Bob Wilson
067a1be3e9 Update my SROA changes in response to review. 
* change FindElementAndOffset to return a uint64_t instead of unsigned, and
  to identify the type to be used for that result in a GEP instruction.
* move "isa<ConstantInt>" to be first in conditional.
* replace some dyn_casts with casts.
* add a comment about handling mem intrinsics.

llvm-svn: 91762
 2009-12-19 06:53:17 +00:00
Daniel Dunbar
057ae7e82e Use memset instead of bzero, its more portable. 
llvm-svn: 91754
 2009-12-19 03:31:50 +00:00
Sean Callanan
18fa59f381 Table-driven disassembler for the X86 architecture (16-, 32-, and 64-bit 
incarnations), integrated into the MC framework.  

The disassembler is table-driven, using a custom TableGen backend to 
generate hierarchical tables optimized for fast decode.  The disassembler 
consumes MemoryObjects and produces arrays of MCInsts, adhering to the 
abstract base class MCDisassembler (llvm/MC/MCDisassembler.h).

The disassembler is documented in detail in

- lib/Target/X86/Disassembler/X86Disassembler.cpp (disassembler runtime)
- utils/TableGen/DisassemblerEmitter.cpp (table emitter)

You can test the disassembler by running llvm-mc -disassemble for i386
or x86_64 targets.  Please let me know if you encounter any problems
with it.

llvm-svn: 91749
 2009-12-19 02:59:52 +00:00
Anton Korobeynikov
4e05e61a52 Bump alignment requirements for windows targets to achieve compartibility with vcpp. 
Based on patch by Michael Beck!

llvm-svn: 91745
 2009-12-19 02:04:23 +00:00
Anton Korobeynikov
682c6a3b74 Use 4-arg getVTList) variant instead of generic one, when possible 
llvm-svn: 91744
 2009-12-19 02:04:00 +00:00
Dan Gohman
a9cdf5b0d8 Fix a spello in a comment that Nick spotted. 
llvm-svn: 91742
 2009-12-19 01:46:34 +00:00
Chris Lattner
e390b70e2c Make some methods const. The only interesting change here is that 
it changes raw_fd_ostream::preferred_buffer_size to return zero on
a scary stat failure instead of setting the stream to an error state.
This method really should not mutate the stream.

llvm-svn: 91740
 2009-12-19 01:38:42 +00:00
John McCall
57eaeeca78 Qualify a bunch of explicit template instantiations to satisfy clang++. 
llvm-svn: 91736
 2009-12-19 00:55:12 +00:00
John McCall
fdae393452 Put TypesEqual and TypeHasCycleThroughItself in namespace llvm so ADL from 
the templates in TypesContext.h can find them.  Caught by clang++.

llvm-svn: 91735
 2009-12-19 00:51:42 +00:00
Dan Gohman
4e04fb5ca8 Eliminate unnecessary LLVMContexts. 
llvm-svn: 91729
 2009-12-18 23:42:08 +00:00
Bill Wendling
aed33d79ab Changes from review: 
- Move DisableScheduling flag into TargetOption.h
- Move SDNodeOrdering into its own header file. Give it a minimal interface that
  doesn't conflate construction with storage.
- Move assigning the ordering into the SelectionDAGBuilder.

This isn't used yet, so there should be no functional changes.

llvm-svn: 91727
 2009-12-18 23:32:53 +00:00
Dan Gohman
f4af7d049c Make this comment more precise. 
llvm-svn: 91722
 2009-12-18 23:18:03 +00:00
Evan Cheng
bc37151dea Increase opportunities to optimize (brcond (srl (and c1), c2)). 
llvm-svn: 91717
 2009-12-18 21:31:31 +00:00
Eli Friedman
a5dba5246a Fix gcc warning. 
llvm-svn: 91715
 2009-12-18 21:07:18 +00:00
Rafael Espindola
c58aaaf793 Catch more cases of a pointer being marked garbage twice. This helps when 
debugging some leaks (PR5770 in particular).

llvm-svn: 91713
 2009-12-18 20:35:38 +00:00
Bob Wilson
03b6955c7f Reapply 91459 with a simple fix for the problem that broke the x86_64-darwin 
bootstrap.  This also replaces the WeakVH references that Chris objected to
with normal Value references.

llvm-svn: 91711
 2009-12-18 20:14:40 +00:00
Victor Hernandez
44652ca549 Formalize MDNode's function-localness: 
- an MDNode is designated as function-local when created, and continues to be even if its operands are modified not to refer to function-local IR
- function-localness is designated via lowest bit in SubclassData
- getLocalFunction() descends MDNode tree to see if it is consistently function-local

Add verification of MDNodes to checks that MDNodes are consistently function-local.
Update AsmWriter to use isFunctionLocal().

llvm-svn: 91708
 2009-12-18 20:09:14 +00:00
Daniel Dunbar
01ebbb9844 Fix Win32 Path.inc for API update. 
llvm-svn: 91706
 2009-12-18 19:59:48 +00:00
Dan Gohman
34f714b928 Revert this use of NUW/NSW also. Overflow-undefined multiplication isn't 
associative either.

llvm-svn: 91701
 2009-12-18 18:45:31 +00:00
Rafael Espindola
4f903d4548 Fix libstdc++ build on ARM linux and part of PR5770. 
MI was not being used but it was also not being deleted, so it was kept in the garbage list. The memory itself was freed once the function code gen was done.

Once in a while the codegen of another function would create an instruction on the same address. Adding it to the garbage group would work once, but when another pointer was added it would cause an assert as "Cache" was about to be pushed to Ts.

For a patch that make us detect problems like this earlier, take a look at

http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20091214/092758.html

With that patch we assert as soon and the new instruction is added to the garbage set.

llvm-svn: 91691
 2009-12-18 16:59:39 +00:00
Tilmann Scheller
69e00966bb Fix wrong frame pointer save offset in the 64-bit PowerPC SVR4 ABI. 
Patch contributed by Ken Werner of IBM!

llvm-svn: 91681
 2009-12-18 13:00:34 +00:00
Tilmann Scheller
29361c46ac Add support for calls through function pointers in the 64-bit PowerPC SVR4 ABI. 
Patch contributed by Ken Werner of IBM!

llvm-svn: 91680
 2009-12-18 13:00:15 +00:00
Eli Friedman
c8ab298dbd Optimize icmp of null and select of two constants even if the select has 
multiple uses.  (The construct in question was found in gcc.)

llvm-svn: 91675
 2009-12-18 08:22:35 +00:00
Evan Cheng
d97d025eba On recent Intel u-arch's, folding loads into some unary SSE instructions can 
be non-optimal. To be precise, we should avoid folding loads if the instructions
only update part of the destination register, and the non-updated part is not
needed. e.g. cvtss2sd, sqrtss. Unfolding the load from these instructions breaks
the partial register dependency and it can improve performance. e.g.

movss (%rdi), %xmm0
cvtss2sd %xmm0, %xmm0

instead of
cvtss2sd (%rdi), %xmm0

An alternative method to break dependency is to clear the register first. e.g.
xorps %xmm0, %xmm0
cvtss2sd (%rdi), %xmm0

llvm-svn: 91672
 2009-12-18 07:40:29 +00:00
Dan Gohman
2e46566444 Revert this use of NSW; this one isn't actually safe. NSW addition 
is not reassociative.

llvm-svn: 91667
 2009-12-18 03:57:04 +00:00
Dan Gohman
87a4da3d59 Eliminte unnecessary uses of <cstdio>. 
llvm-svn: 91666
 2009-12-18 03:25:51 +00:00
Dan Gohman
3ceb7c0c47 Add utility routines for NSW multiply. 
llvm-svn: 91664
 2009-12-18 03:10:26 +00:00
Dan Gohman
6bb50740f4 Add utility routines for creating integer negation operators with NSW set. 
Integer negation only overflows with INT_MIN, but that's an important case.

llvm-svn: 91662
 2009-12-18 02:58:50 +00:00
Dan Gohman
ec766ea441 Delete an unused variable. 
llvm-svn: 91659
 2009-12-18 02:14:37 +00:00
Eric Christopher
0253008d0c Fix typo. 
llvm-svn: 91657
 2009-12-18 02:12:53 +00:00
Dan Gohman
91b1161840 Preserve NSW information in more places. 
llvm-svn: 91656
 2009-12-18 02:09:29 +00:00
Evan Cheng
a647318eb3 Re-apply 91623 now that I actually know what I was trying to do. 
llvm-svn: 91655
 2009-12-18 01:59:21 +00:00
Dan Gohman
0f8f7f179d Add Loop contains utility methods for testing whether a loop 
contains another loop, or an instruction. The loop form is
substantially more efficient on large loops than the typical
code it replaces.

llvm-svn: 91654
 2009-12-18 01:24:09 +00:00
Dan Gohman
66a17c5ce2 Minor code simplification. 
llvm-svn: 91653
 2009-12-18 01:20:44 +00:00
Dan Gohman
7c0f6a6c1b Whitespace cleanups. 
llvm-svn: 91651
 2009-12-18 01:14:11 +00:00
Bob Wilson
a9f20f9f6e Handle ARM inline asm "w" constraints with 64-bit ("d") registers. 
The change in SelectionDAGBuilder is needed to allow using bitcasts to convert
between f64 (the default type for ARM "d" registers) and 64-bit Neon vector
types.  Radar 7457110.

llvm-svn: 91649
 2009-12-18 01:03:29 +00:00
Dan Gohman
3ea233d1f2 Don't pass const pointers by reference. 
llvm-svn: 91647
 2009-12-18 00:38:08 +00:00
Dan Gohman
dcf5423e51 Update a comment. 
llvm-svn: 91645
 2009-12-18 00:28:43 +00:00
John McCall
923cb2d8d7 Pass the error string directly to llvm_unreachable instead of the residual 
(0 && "error").  Rough consensus seems to be that g++ *should* be diagnosing
this because the pointer makes it not an ICE in c++03.  Everyone agrees that
the current standard is silly and null-pointer-ness should not be based on
ICE-ness.  Excellent fight scene in Act II, denouement weak, two stars.

llvm-svn: 91644
 2009-12-18 00:27:18 +00:00
Dan Gohman
c483bed5e8 Reapply LoopStrengthReduce and IVUsers cleanups, excluding the part 
of 91296 that caused trouble -- the Processed list needs to be
preserved for the livetime of the pass, as AddUsersIfInteresting
is called from other passes.

llvm-svn: 91641
 2009-12-18 00:06:20 +00:00
Sean Callanan
06b6feb2e1 Instruction fixes, added instructions, and AsmString changes in the 
X86 instruction tables.

Also (while I was at it) cleaned up the X86 tables, removing tabs and
80-line violations.

This patch was reviewed by Chris Lattner, but please let me know if
there are any problems.

* X86*.td
	Removed tabs and fixed 80-line violations

* X86Instr64bit.td
	(IRET, POPCNT, BT_, LSL, SWPGS, PUSH_S, POP_S, L_S, SMSW)
		Added
	(CALL, CMOV) Added qualifiers
	(JMP) Added PC-relative jump instruction
	(POPFQ/PUSHFQ) Added qualifiers; renamed PUSHFQ to indicate
		that it is 64-bit only (ambiguous since it has no
		REX prefix)
	(MOV) Added rr form going the other way, which is encoded
		differently
	(MOV) Changed immediates to offsets, which is more correct;
		also fixed MOV64o64a to have to a 64-bit offset
	(MOV) Fixed qualifiers
	(MOV) Added debug-register and condition-register moves
	(MOVZX) Added more forms
	(ADC, SUB, SBB, AND, OR, XOR) Added reverse forms, which
		(as with MOV) are encoded differently
	(ROL) Made REX.W required
	(BT) Uncommented mr form for disassembly only
	(CVT__2__) Added several missing non-intrinsic forms
	(LXADD, XCHG) Reordered operands to make more sense for
		MRMSrcMem
	(XCHG) Added register-to-register forms
	(XADD, CMPXCHG, XCHG) Added non-locked forms
* X86InstrSSE.td
	(CVTSS2SI, COMISS, CVTTPS2DQ, CVTPS2PD, CVTPD2PS, MOVQ)
		Added
* X86InstrFPStack.td
	(COM_FST0, COMP_FST0, COM_FI, COM_FIP, FFREE, FNCLEX, FNOP,
	 FXAM, FLDL2T, FLDL2E, FLDPI, FLDLG2, FLDLN2, F2XM1, FYL2X,
	 FPTAN, FPATAN, FXTRACT, FPREM1, FDECSTP, FINCSTP, FPREM,
	 FYL2XP1, FSINCOS, FRNDINT, FSCALE, FCOMPP, FXSAVE,
	 FXRSTOR)
		Added
	(FCOM, FCOMP) Added qualifiers
	(FSTENV, FSAVE, FSTSW) Fixed opcode names
	(FNSTSW) Added implicit register operand
* X86InstrInfo.td
	(opaque512mem) Added for FXSAVE/FXRSTOR
	(offset8, offset16, offset32, offset64) Added for MOV
	(NOOPW, IRET, POPCNT, IN, BTC, BTR, BTS, LSL, INVLPG, STR,
	 LTR, PUSHFS, PUSHGS, POPFS, POPGS, LDS, LSS, LES, LFS,
	 LGS, VERR, VERW, SGDT, SIDT, SLDT, LGDT, LIDT, LLDT,
	 LODSD, OUTSB, OUTSW, OUTSD, HLT, RSM, FNINIT, CLC, STC,
	 CLI, STI, CLD, STD, CMC, CLTS, XLAT, WRMSR, RDMSR, RDPMC,
	 SMSW, LMSW, CPUID, INVD, WBINVD, INVEPT, INVVPID, VMCALL,
	 VMCLEAR, VMLAUNCH, VMRESUME, VMPTRLD, VMPTRST, VMREAD,
	 VMWRITE, VMXOFF, VMXON) Added
	(NOOPL, POPF, POPFD, PUSHF, PUSHFD) Added qualifier
	(JO, JNO, JB, JAE, JE, JNE, JBE, JA, JS, JNS, JP, JNP, JL,
	 JGE, JLE, JG, JCXZ) Added 32-bit forms
	(MOV) Changed some immediate forms to offset forms
	(MOV) Added reversed reg-reg forms, which are encoded
		differently
	(MOV) Added debug-register and condition-register moves
	(CMOV) Added qualifiers
	(AND, OR, XOR, ADC, SUB, SBB) Added reverse forms, like MOV
	(BT) Uncommented memory-register forms for disassembler
	(MOVSX, MOVZX) Added forms
	(XCHG, LXADD) Made operand order make sense for MRMSrcMem
	(XCHG) Added register-register forms
	(XADD, CMPXCHG) Added unlocked forms
* X86InstrMMX.td
	(MMX_MOVD, MMV_MOVQ) Added forms
* X86InstrInfo.cpp: Changed PUSHFQ to PUSHFQ64 to reflect table
	change

* X86RegisterInfo.td: Added debug and condition register sets
* x86-64-pic-3.ll: Fixed testcase to reflect call qualifier
* peep-test-3.ll: Fixed testcase to reflect test qualifier
* cmov.ll: Fixed testcase to reflect cmov qualifier
* loop-blocks.ll: Fixed testcase to reflect call qualifier
* x86-64-pic-11.ll: Fixed testcase to reflect call qualifier
* 2009-11-04-SubregCoalescingBug.ll: Fixed testcase to reflect call
  qualifier
* x86-64-pic-2.ll: Fixed testcase to reflect call qualifier
* live-out-reg-info.ll: Fixed testcase to reflect test qualifier
* tail-opts.ll: Fixed testcase to reflect call qualifiers
* x86-64-pic-10.ll: Fixed testcase to reflect call qualifier
* bss-pagealigned.ll: Fixed testcase to reflect call qualifier
* x86-64-pic-1.ll: Fixed testcase to reflect call qualifier
* widen_load-1.ll: Fixed testcase to reflect call qualifier

llvm-svn: 91638
 2009-12-18 00:01:26 +00:00
John McCall
27b47abb40 Sundry dependent-name fixes flagged by clang++. 
llvm-svn: 91636
 2009-12-17 23:49:16 +00:00
Bill Wendling
747a2ba2a1 Revert accidental commit. 
llvm-svn: 91635
 2009-12-17 23:45:18 +00:00
Bill Wendling
2911fdb37b Turn off critical edge splitting for landing pads. The introduction of a 
non-landing pad basic block as the successor to a block that ends in an
unconditional jump will cause block folding to remove the added block as a
successor. Thus eventually removing it AND the landing pad entirely. Critical
edge splitting is an optimization, so we can safely turn it off when dealing
with landing pads.

llvm-svn: 91634
 2009-12-17 23:42:32 +00:00
Jeffrey Yasskin
f39a138a7c Revert r91623 to unbreak the buildbots. 
llvm-svn: 91632
 2009-12-17 22:44:34 +00:00
Eli Friedman
9543d05079 Allow instcombine to combine "sext(a) >u const" to "a >u trunc(const)". 
llvm-svn: 91631
 2009-12-17 22:42:29 +00:00
Jeffrey Yasskin
f4d06414ec Don't codegen available_externally functions. Fixes http://llvm.org/PR5735. 
llvm-svn: 91626
 2009-12-17 21:35:29 +00:00
Eli Friedman
8afea2d095 Make the ptrtoint comparison simplification work if one side is a global. 
llvm-svn: 91624
 2009-12-17 21:27:47 +00:00
Evan Cheng
d765952b17 Remove an unused option. 
llvm-svn: 91623
 2009-12-17 21:23:58 +00:00