b9d0a961f9
reduce header #include'age
...
llvm-svn: 80204
2009-08-27 04:32:07 +00:00
b1cba3f91e
enhance InlineFunction to be able to optionally return
...
a the list of static allocas that it inlined.
llvm-svn: 80203
2009-08-27 04:20:52 +00:00
d84dbb3443
smallvectorize the list of returns built by CloneAndPruneFunctionInto.
...
llvm-svn: 80202
2009-08-27 04:02:30 +00:00
9d0235dc6b
remove CloneTrace, which appears to be dead since 2004.
...
llvm-svn: 80201
2009-08-27 03:56:43 +00:00
5eef6ad6a9
reduce inlining factor some stuff out to a static helper function,
...
and other code cleanups. No functionality change.
llvm-svn: 80199
2009-08-27 03:51:50 +00:00
109ca5a14a
Make this into a static method.
...
llvm-svn: 80170
2009-08-26 22:55:11 +00:00
f08e35d9dc
Revert 79977. It causes llvm-gcc bootstrap failures on some platforms.
...
llvm-svn: 80073
2009-08-26 05:01:18 +00:00
3b1938dda4
Remove unused variables.
...
llvm-svn: 80058
2009-08-26 00:13:22 +00:00
ad1f0a1101
Eliminate the unused Context argument on one of the ICmpInst and FCmpInst
...
constructors.
llvm-svn: 80049
2009-08-25 23:17:54 +00:00
c8a27f2a5c
Rename Instruction::isIdenticalTo to Instruction::isIdenticalToWhenDefined,
...
and introduce a new Instruction::isIdenticalTo which tests for full
identity, including the SubclassOptionalData flags. Also, fix the
Instruction::clone implementations to preserve the SubclassOptionalData
flags. Finally, teach several optimizations how to handle
SubclassOptionalData correctly, given these changes.
This fixes the counterintuitive behavior of isIdenticalTo not comparing
the full value, and clone not returning an identical clone, as well as
some subtle bugs that could be caused by these.
Thanks to Nick Lewycky for reporting this, and for an initial patch!
llvm-svn: 80038
2009-08-25 22:11:20 +00:00
337d56110e
Special-case static allocas in IndVarSimplify's loop invariant
...
sinking code, since they are special. If the loop preheader happens
to be the entry block of a function, don't sink static allocas
out of it. This fixes PR4775.
llvm-svn: 80010
2009-08-25 17:42:10 +00:00
4e9ac2a34b
Comment-ify.
...
llvm-svn: 80009
2009-08-25 17:42:07 +00:00
f18cae4979
Switch to SmallVector.
...
llvm-svn: 80007
2009-08-25 17:35:37 +00:00
5e39d1deec
Pull out this predicate loop into a helper function.
...
llvm-svn: 80006
2009-08-25 17:26:32 +00:00
02aac922b4
Update DebugInfo interface to use metadata, instead of special named llvm.dbg.... global variables, to encode debugging information in llvm IR. This is mostly a mechanical change that tests metadata support very well.
...
This change speeds up llvm-gcc by more then 6% at "-O0 -g" (measured by compiling InstructionCombining.cpp!)
llvm-svn: 79977
2009-08-25 05:24:07 +00:00
c221a55f58
Allow multiple occurrences of -inline-threshold on
...
the command line. This gives llvm-gcc developers
a way to control inlining (documented as "not intended
for end users").
llvm-svn: 79966
2009-08-25 01:13:58 +00:00
34e6148dc8
Handle a corner case when extracing code regions where one of the immediate successor
...
of an extracted block contains a PHI using a value defined in the extracted region.
With this patch, the partial inliner now passes MultiSource/Applications.
llvm-svn: 79963
2009-08-25 00:54:39 +00:00
b4aa5b1511
When extracting SEME regions of code, the extractor needs to update the dominator tree for split return blocks.
...
llvm-svn: 79957
2009-08-24 23:32:14 +00:00
06fa176862
prune the #includes in raw_ostream.h by moving a
...
member out of line. ftostr is not particularly speedy,
so that method is presumably not perf sensitive.
llvm-svn: 79885
2009-08-24 03:52:50 +00:00
1a25d733f9
Kill off more cerr/cout uses and prune includes a bit.
...
llvm-svn: 79852
2009-08-23 11:37:21 +00:00
5e0a58bef4
Fix -Asserts warnings.
...
llvm-svn: 79849
2009-08-23 10:29:55 +00:00
4883d90396
convert LoopInfo.h and GraphWriter.h to use raw_ostream
...
llvm-svn: 79836
2009-08-23 07:19:13 +00:00
317dbbcfb1
eliminate uses of cerr()
...
llvm-svn: 79834
2009-08-23 07:05:07 +00:00
4dc3edde9f
remove a few DOUTs here and there.
...
llvm-svn: 79832
2009-08-23 06:35:02 +00:00
1362602eb2
Change Pass::print to take a raw ostream instead of std::ostream,
...
update all code that this affects.
llvm-svn: 79830
2009-08-23 06:03:38 +00:00
b1d782bec9
eliminate the std::ostream form of WriteAsOperand and update clients.
...
This also updates dominator related stuff.
llvm-svn: 79825
2009-08-23 05:17:37 +00:00
3924bb5792
remove the std::ostream version of module and type printing.
...
llvm-svn: 79823
2009-08-23 04:52:46 +00:00
b25de3ff60
eliminate the "Value" printing methods that print to a std::ostream.
...
This required converting a bunch of stuff off DOUT and other cleanups.
llvm-svn: 79819
2009-08-23 04:37:46 +00:00
16f5415f5b
Rename hasNoUnsignedOverflow and hasNoSignedOverflow to hasNoUnsignedWrap
...
and hasNoSignedWrap, for consistency with the nuw and nsw properties.
llvm-svn: 79539
2009-08-20 17:11:38 +00:00
7167f42769
Fix a few places to check if TargetData is available before using it.
...
llvm-svn: 79493
2009-08-19 23:38:22 +00:00
915302c605
Make SROA and PredicateSimplifier cope if TargetData is not
...
available. This is very conservative for now.
llvm-svn: 79442
2009-08-19 18:22:18 +00:00
5d5bc6d000
Use hasDefinitiveInitializer() instead of testing the same thing
...
by hand, and fix a few places that were using hasInitializer() that
appear to depend on the initializer value.
llvm-svn: 79441
2009-08-19 18:20:44 +00:00
cbfe9b195c
Fix up PHI nodes correctly in the presence of unreachable BBs, part two. Also
...
delete a newed pointer, and improve readability a little bit.
llvm-svn: 79411
2009-08-19 07:16:57 +00:00
9ddc52d5b8
Be more careful when modifying PHI nodes. Patch by Andre Tavares.
...
llvm-svn: 79407
2009-08-19 06:24:33 +00:00
dea2358c68
Fix SimplifyLibcalls and ValueTracking to check mayBeOverridden
...
before performing optimizations based on constant string values.
llvm-svn: 79384
2009-08-19 00:11:12 +00:00
82ac81b1cc
Fix a bug that caused globalopt to miscompile tramp3d: don't miss
...
unruly indices for arrays that are members of structs.
llvm-svn: 79337
2009-08-18 14:58:19 +00:00
10f1471e2f
Make TargetData optional in MemCpyOptimizer.
...
llvm-svn: 79306
2009-08-18 01:17:52 +00:00
9f2b3db428
Make TargetData optional in SimplifyLibCalls.
...
llvm-svn: 79298
2009-08-18 00:48:13 +00:00
90e17e787f
The attached patches attempt to fix cross builds. For example, if you
...
try to use i686-darwin to build for arm-eabi, you'll quickly run into
several false assumptions that the target OS must be the same as the
host OS. These patches split $(OS) into $(HOST_OS) and $(TARGET_OS) to
help builds like "make check" and the test-suite able to cross
compile. Along the way a target of *-unknown-eabi is defined as
"Freestanding" so that TARGET_OS checks have something to work with.
Patch by Sandeep Patel!
llvm-svn: 79296
2009-08-18 00:40:33 +00:00
7cb92a1e3d
Update comments to new-style syntax.
...
llvm-svn: 79263
2009-08-17 18:45:31 +00:00
4c737147e1
Don't crash on critical edge. Patch by Andre Tavares.
...
llvm-svn: 79252
2009-08-17 17:00:57 +00:00
8dd69f88ea
Fix debug output to include a newline after printing a Value, now
...
that Value's operator<< doesn't include one.
llvm-svn: 79240
2009-08-17 15:25:05 +00:00
c4ce58d8fe
Don't access the first element of a potentially empty
...
vector (&Formals[0]). With this change llvm-gcc builds
with expensive checking enabled for C, C++ and Fortran.
While there, change a std::vector into a SmallVector.
This is partly gratuitous, but mostly because not all
STL vector implementations define the data method (and
it should be faster).
llvm-svn: 79237
2009-08-17 14:33:27 +00:00
aa464002f0
Don't crash trying to promote VLAs.
...
llvm-svn: 79226
2009-08-17 05:37:31 +00:00
d56fca4708
Fix for PR3016: detect the tricky case, where there are
...
unfoldable references to a PHI node in the block being folded, and disable
the transformation in that case. The correct transformation of such PHI
nodes depends on whether BB dominates Succ, and dominance is expensive
to compute here. (Alternatively, it's possible to check whether any
uses are live, but that's also essentially a dominance calculation.
Another alternative is to use reg2mem, but it probably isn't a good idea to
use that in simplifycfg.)
Also, remove some incorrect code from CanPropagatePredecessorsForPHIs
which is made unnecessary with this patch: it didn't consider the case
where a PHI node in BB has multiple uses.
llvm-svn: 79174
2009-08-16 04:23:49 +00:00
693a9c57a6
Don't try to get the context from an erased Instruction.
...
llvm-svn: 79134
2009-08-15 21:07:49 +00:00
dd0e74ceee
SSI construction should just go ahead and ignore instructions in unreachable
...
blocks.
llvm-svn: 79132
2009-08-15 20:12:18 +00:00
dbeb33936f
Make TargetData optional in GlobalOpt and ArgumentPromotion.
...
llvm-svn: 78967
2009-08-14 00:11:03 +00:00
a42ac6953b
Actually privatize a IntegerTypes, and fix a few bugs exposed by this.
...
llvm-svn: 78955
2009-08-13 23:27:32 +00:00
55f1c09e31
Push LLVMContexts through the IntegerType APIs.
...
llvm-svn: 78948
2009-08-13 21:58:54 +00:00
a95379d165
When InstCombine simplifies a load -> extract element to gep -> load, place
...
the new load by the old load instead of by the extract element because
a store could have occurred between the load and extract element.
llvm-svn: 78891
2009-08-13 05:12:13 +00:00
5c2764b3e9
Simplify conditional.
...
llvm-svn: 78889
2009-08-13 03:05:20 +00:00
aef432505b
Simplify and reduce indentation using early exits.
...
No intended functionality change.
llvm-svn: 78888
2009-08-13 03:00:57 +00:00
438ba80afa
DEBUGify some DOUTs.
...
llvm-svn: 78887
2009-08-13 02:45:03 +00:00
177a2f5313
Prune trailing whitespace.
...
llvm-svn: 78886
2009-08-13 02:40:50 +00:00
4ac2f639cd
Transform -X/C to X/-C, implementing a README.txt entry.
...
llvm-svn: 78812
2009-08-12 16:37:02 +00:00
908da3d97e
Optimize (x/C)*C to x if the division is exact.
...
llvm-svn: 78811
2009-08-12 16:33:09 +00:00
43103abef0
Update instcombine's debug output to account for Value*'s operator<<
...
not appending its own newline.
llvm-svn: 78810
2009-08-12 16:28:31 +00:00
5476cfdb15
Remove a bunch more now-unnecessary Context arguments.
...
llvm-svn: 78809
2009-08-12 16:23:25 +00:00
6b490ce4c7
Eliminate a bunch of now unnecessary explicit Context variables.
...
llvm-svn: 78808
2009-08-12 16:04:34 +00:00
117c9e8497
Add contexts to some of the MVT APIs. No functionality change yet, just the infrastructure work needed to get the contexts to where they need to be first.
...
llvm-svn: 78759
2009-08-12 00:36:31 +00:00
dbae4db67a
Optimize exact sdiv by a constant power of 2 to ashr.
...
llvm-svn: 78714
2009-08-11 20:47:47 +00:00
38484ceec9
Remove unnecessary casts.
...
llvm-svn: 78664
2009-08-11 15:15:10 +00:00
c5aa8c6d29
Remove dead metadata.
...
llvm-svn: 78651
2009-08-11 06:31:57 +00:00
53aa7a960c
Rename MVT to EVT, in preparation for splitting SimpleValueType out into its own struct type.
...
llvm-svn: 78610
2009-08-10 22:56:29 +00:00
3b5008e23a
More ProfileInfo improvements.
...
- Part of optimal static profiling patch sequence by Andreas Neustifter.
- Store edge, block, and function information separately for each functions
(instead of in one giant map).
- Return frequencies as double instead of int, and use a sentinel value for
missing information.
llvm-svn: 78477
2009-08-08 17:43:09 +00:00
b1106fbdbc
Fix dom frontier update. This fixes PR4667.
...
Patch by Jakub Staszak.
llvm-svn: 78388
2009-08-07 17:16:44 +00:00
a6d0afcb74
Fix a bunch of namespace pollution.
...
llvm-svn: 78363
2009-08-07 01:32:21 +00:00
ae5ead6df4
Use DebugInfoFinder.
...
llvm-svn: 78333
2009-08-06 20:53:06 +00:00
03cb69fbd1
Privatize the StructType table, which unfortunately involves routing contexts through a number of APIs.
...
llvm-svn: 78258
2009-08-05 23:16:16 +00:00
298bce2aa9
Check for !isa<Constant> instead of isa<Instruction>. This
...
matches what the comment says, and it avoids spurious BitCast
instructions for Argument values.
llvm-svn: 78121
2009-08-04 23:23:56 +00:00
f011f5a8a2
Add a new Constant::getIntegerValue helper function, and convert a
...
few places in InstCombine to use it, to fix problems handling pointer
types. This fixes the recent llvm-gcc bootstrap error.
llvm-svn: 78005
2009-08-03 22:07:33 +00:00
cfd3bbe643
Make SimplifyDemandedUseBits generate vector constants where
...
appropriate. Patch per report on llvmdev. No testcase because the
original report didn't come with a testcase, and I can't come up with a case
that actually fails.
llvm-svn: 77986
2009-08-03 19:15:42 +00:00
5a1acd9912
Move a few more APIs back to 2.5 forms. The only remaining ones left to change back are
...
metadata related, which I'm waiting on to avoid conflicting with Devang.
llvm-svn: 77721
2009-07-31 20:28:14 +00:00
ef3ef7f645
Fix GVN's debug output, now that operator<< on Value* doesn't print
...
a trailing newline.
llvm-svn: 77719
2009-07-31 20:24:18 +00:00
2602bb4cdc
- Convert the rest of the DOUTs to DEBUG+errs().
...
- One formatting change.
No intended functionality change.
llvm-svn: 77717
2009-07-31 19:52:24 +00:00
ca9a4f1045
PR4662: Fix a crash introduced by the recent LLVMContext changes.
...
llvm-svn: 77716
2009-07-31 19:36:47 +00:00
23a204d91b
Move getTrue() and getFalse() to 2.5-like APIs.
...
llvm-svn: 77685
2009-07-31 17:39:07 +00:00
b292b8ce70
Move more code back to 2.5 APIs.
...
llvm-svn: 77635
2009-07-30 23:03:37 +00:00
132f78395a
Twines: Don't allow implicit conversion from integers, this is too tricky.
...
llvm-svn: 77605
2009-07-30 17:37:43 +00:00
6afdc5e694
Switch obvious clients to Twine instead of utostr (when they were already using
...
a Twine, e.g., for names).
- I am a little ambivalent about this; we don't want the string conversion of
utostr, but using overload '+' mixed with string and integer arguments is
sketchy. On the other hand, this particular usage is something of an idiom.
llvm-svn: 77579
2009-07-30 04:20:37 +00:00
47d02732e0
Eliminate a few unused-variable warnings
...
llvm-svn: 77519
2009-07-29 22:41:10 +00:00
4056ca9568
Move types back to the 2.5 API.
...
llvm-svn: 77516
2009-07-29 22:17:13 +00:00
98ddd164d8
Fix PR4645 which was fallout from the fix for PR4641.
...
- Call RAUW to delete all instructions (this is a patch from Nick Lewycky).
llvm-svn: 77512
2009-07-29 22:00:43 +00:00
21d75078b5
Remove now unused Context variables.
...
llvm-svn: 77495
2009-07-29 19:14:17 +00:00
487375e9a2
Move ConstantExpr to 2.5 API.
...
llvm-svn: 77494
2009-07-29 18:55:55 +00:00
f82326b984
Bulk erasing instructions without RAUWing them is unsafe. Instead, break them
...
into a new BB that has no predecessors.
llvm-svn: 77433
2009-07-29 05:17:50 +00:00
a4f43fb5dd
Rename MDNode.h header. It defines MDnode and other metadata classes.
...
New name is Metadata.h.
llvm-svn: 77370
2009-07-28 21:49:47 +00:00
4aa3295a65
Return ConstantVector to 2.5 API.
...
llvm-svn: 77366
2009-07-28 21:19:26 +00:00
c2c7932c64
Change ConstantArray to 2.5 API.
...
llvm-svn: 77347
2009-07-28 18:32:17 +00:00
31a9b9880b
Teach instcombine to respect and preserve inbounds. Add inbounds
...
to a few tests where it is required for the expected transformation.
llvm-svn: 77290
2009-07-28 01:40:03 +00:00
38a579fe5a
Fix a small little typo.
...
llvm-svn: 77289
2009-07-28 01:35:34 +00:00
9ba43abc70
Replace dyn_castGetElementPtr with dyn_cast<GEPOperator>.
...
llvm-svn: 77286
2009-07-28 00:37:50 +00:00
a3dcff5900
Grab the LLVMContext and parent Module of SI ahead of the
...
point where SI can get deleted. This fixes a use of free'd memory.
This fixes Externals/Povray.
llvm-svn: 77285
2009-07-28 00:37:06 +00:00
4798763e14
Fix a release-asserts warning. Debug functions should be marked used,
...
if there are no other uses. If people don't need this routine
anymore, if should be deleted.
llvm-svn: 77274
2009-07-27 23:33:34 +00:00
d934cc06c6
Avoid build warnings.
...
llvm-svn: 77271
2009-07-27 23:14:11 +00:00
45308b578b
Move ConstantStruct back to 2.5 API.
...
llvm-svn: 77266
2009-07-27 22:29:26 +00:00
69c464dec4
Move ConstantFP construction back to the 2.5-ish API.
...
llvm-svn: 77247
2009-07-27 20:59:43 +00:00
de6f46c32e
Do not seed mstadata into the value map.
...
llvm-svn: 77208
2009-07-27 17:17:04 +00:00
6115b39ffd
Remove Value::getName{Start,End}, the last of the old Name APIs.
...
llvm-svn: 77152
2009-07-26 09:48:23 +00:00
ca414c7cae
Remove Value::getNameLen
...
llvm-svn: 77148
2009-07-26 08:34:35 +00:00
9813b0b025
Eliminate some uses of DOUT, cerr, and getNameStart().
...
llvm-svn: 77145
2009-07-26 07:49:05 +00:00
e03eecb75f
Remove Value::{isName, getNameRef}.
...
Also, change MDString to use a StringRef.
llvm-svn: 77098
2009-07-25 23:55:21 +00:00
4975db6276
Initial update to VMCore to use Twines for string arguments.
...
- The only meat here is in Value.{h,cpp} the rest is essential 'const
std::string &' -> 'const Twine &'.
llvm-svn: 77048
2009-07-25 04:41:11 +00:00
53e1cd7254
Fix 80-col violations.
...
llvm-svn: 77045
2009-07-25 02:45:27 +00:00
c974225976
Move ExtractElementInst to ::Create instead of new. Update all uses.
...
llvm-svn: 77044
2009-07-25 02:28:41 +00:00
1ddf98ad8e
Convert a few more things to use raw_ostream.
...
llvm-svn: 77039
2009-07-25 01:43:01 +00:00
29f2baf3b3
Convert a few more uses of llvm/Support/Streams.h to raw_ostream.
...
llvm-svn: 77033
2009-07-25 01:13:51 +00:00
43d19d61d4
Make AliasAnalysis and related classes use
...
getAnalysisIfAvailable<TargetData>().
llvm-svn: 77028
2009-07-25 00:48:42 +00:00
0dd5e1ed39
More migration to raw_ostream, the water has dried up around the iostream hole.
...
- Some clients which used DOUT have moved to DEBUG. We are deprecating the
"magic" DOUT behavior which avoided calling printing functions when the
statement was disabled. In addition to being unnecessary magic, it had the
downside of leaving code in -Asserts builds, and of hiding potentially
unnecessary computations.
llvm-svn: 77019
2009-07-25 00:23:56 +00:00
edb4a70325
Revert the ConstantInt constructors back to their 2.5 forms where possible, thanks to contexts-on-types. More to come.
...
llvm-svn: 77011
2009-07-24 23:12:02 +00:00
85a791ef7a
AliasAnalysis wants sizes in address-units, not bits.
...
llvm-svn: 77009
2009-07-24 23:01:30 +00:00
0b5be94c79
Fix this condition I accidentally inverted.
...
llvm-svn: 76988
2009-07-24 18:31:07 +00:00
67243a4bec
Convert several more passes to use getAnalysisIfAvailable<TargetData>()
...
instead of getAnalysis<TargetData>().
llvm-svn: 76982
2009-07-24 18:13:53 +00:00
796e43eede
Move more to raw_ostream, provide support for writing MachineBasicBlock,
...
LiveInterval, etc to raw_ostream.
llvm-svn: 76965
2009-07-24 10:36:58 +00:00
12368685d8
Switch to getNameStr().
...
llvm-svn: 76962
2009-07-24 08:24:36 +00:00
5bf72e20eb
Convert StringMap to using StringRef for its APIs.
...
- Yay for '-'s and simplifications!
- I kept StringMap::GetOrCreateValue for compatibility purposes, this can
eventually go away. Likewise the StringMapEntry Create functions still follow
the old style.
- NIFC.
llvm-svn: 76888
2009-07-23 18:17:34 +00:00
88ab854873
refactor a blob of code out to a new 'FoldOrOfFCmps' function and
...
simplify it.
llvm-svn: 76866
2009-07-23 05:46:22 +00:00
7d55541e56
Make some existing optimizations that would only trigger on scalars
...
also apply to vectors. This allows us to compile this:
#include <emmintrin.h>
__m128i a(__m128 a, __m128 b) { return a==a & b==b; }
__m128i b(__m128 a, __m128 b) { return a!=a | b!=b; }
to:
_a:
cmpordps %xmm1, %xmm0
ret
_b:
cmpunordps %xmm1, %xmm0
ret
with clang instead of to a ton of horrible code.
llvm-svn: 76863
2009-07-23 05:32:17 +00:00
9085438e4b
refactor a bunch of code out into a helper function,
...
no functionality change.
llvm-svn: 76859
2009-07-23 05:14:02 +00:00
0989a9a338
Remove unnecessary store to temporary std::string.
...
llvm-svn: 76782
2009-07-22 20:46:46 +00:00
315596c39c
Don't give a massive inlining cost bonus to available_externally
...
functions with a single use; eliminating the single use may eliminate
the function from the current module, but usually doesn't eliminate
it from the final program.
llvm-svn: 76730
2009-07-22 08:12:59 +00:00
47db941fd3
Get rid of the Pass+Context magic.
...
llvm-svn: 76702
2009-07-22 00:24:57 +00:00
3666c34db8
Convert instcombine from using using getAnalysis<TargetData> to
...
getAnalysisIfAvailable<TargetData>.
llvm-svn: 76676
2009-07-21 23:21:54 +00:00
c37bc69e91
Rename getConstantInt{True|False} to get{True|False} at Chris' behest.
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llvm-svn: 76598
2009-07-21 18:03:38 +00:00
d0014cf36d
Update CMake files.
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llvm-svn: 76595
2009-07-21 17:43:20 +00:00
2ad52176f9
Move a bit more state over to the LLVMContext.
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llvm-svn: 76533
2009-07-21 02:47:59 +00:00
470a8da807
use ExpandInlineAsm on TargetLowering instead of TargetAsmInfo.
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llvm-svn: 76442
2009-07-20 17:52:52 +00:00
33a3fd0b9c
Revert the addition of hasNoPointerOverflow to GEPOperator.
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Getelementptrs that are defined to wrap are virtually useless to
optimization, and getelementptrs that are undefined on any kind
of overflow are too restrictive -- it's difficult to ensure that
all intermediate addresses are within bounds. I'm going to take
a different approach.
Remove a few optimizations that depended on this flag.
llvm-svn: 76437
2009-07-20 17:43:30 +00:00
58f9bb2ccd
implement a new magic global "llvm.compiler.used" which is like llvm.used, but
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doesn't cause ".no_dead_strip" to be emitted on darwin.
llvm-svn: 76399
2009-07-20 06:14:25 +00:00
a3c6f6bffa
Add plumbing for the `linker_private' linkage type. This type is meant for
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"private" symbols which the assember shouldn't strip, but which the linker may
remove after evaluation. This is mostly useful for Objective-C metadata.
This is plumbing, so we don't have a use of it yet. More to come, etc.
llvm-svn: 76385
2009-07-20 01:03:30 +00:00
048e78fc5b
Canonicalize bitcasts between types like <1 x i64> and i64 to
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insertelement/extractelement.
I'm not entirely sure this is precisely what we want to do: should we
prefer bitcast(insertelement) or insertelement(bitcast)? Similarly. should we
prefer extractelement(bitcast) or bitcast(extractelement)?
llvm-svn: 76345
2009-07-18 23:06:53 +00:00
eb6bcf3462
Back out 76300; apparently the preference is to canonicalize the other
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way (bitcast -> insert/extractelement).
llvm-svn: 76325
2009-07-18 19:04:16 +00:00
1c71fd646b
add a fixme
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llvm-svn: 76324
2009-07-18 18:49:04 +00:00
52dbfc21c5
Add combine: X sdiv (1 << Y) -> X udiv (1 << Y) when X doesn't have the
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sign bit set.
llvm-svn: 76304
2009-07-18 09:53:21 +00:00
992d0e0b74
Remove no-op check.
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llvm-svn: 76302
2009-07-18 09:21:25 +00:00
44e9836b17
Remove dead check.
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llvm-svn: 76301
2009-07-18 09:12:15 +00:00
a807aae226
Canonicalize insert/extractelement from single-element vectors into
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bitcasts.
It would also be possible to canonicalize the other way; does anyone
have a preference?
llvm-svn: 76300
2009-07-18 09:07:47 +00:00
ff9bf97ceb
Fix simplifylibcalls memset recognition to work on 64-bit platforms
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where int is 32 bits.
llvm-svn: 76293
2009-07-18 08:34:51 +00:00
0d13903563
Replace intersectWith with maximalIntersectWith. The latter guarantees that
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all values belonging to the intersection will belong to the resulting range.
The former was inconsistent about that point (either way is fine, just pick
one.) This is part of PR4545.
llvm-svn: 76289
2009-07-18 06:34:42 +00:00
e1b9216bc3
Fix the inline cost calculation to take into account instructions
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which cannot be folded even if they have constant operands. Significantly
helps if_spppsubr.c attached to PR4573.
llvm-svn: 76285
2009-07-18 05:26:06 +00:00
f13b36ddc5
Add line breaks to make the debug output a bit more readable.
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llvm-svn: 76284
2009-07-18 05:12:58 +00:00
e1019db658
Convert more code to use Operator instead of explicitly handling both
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ConstantExpr and Instruction. This involves duplicating some code
between GetElementPtrInst and GEPOperator, but it's not a lot.
llvm-svn: 76265
2009-07-17 23:55:56 +00:00
1d548d851a
Make BasicAliasAnalysis and Value::getUnderlyingObject use
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GEPOperator's hasNoPointer0verflow(), and make a few places in instcombine
that create GEPs that may overflow clear the NoOverflow value. Among
other things, this partially addresses PR2831.
llvm-svn: 76252
2009-07-17 22:25:10 +00:00
a565d4f937
Fix some typos in a comment.
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llvm-svn: 76249
2009-07-17 22:16:21 +00:00
80ca01c466
Add a new Operator class, for handling Instructions and ConstantExprs
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in a convenient manner, factoring out some common code from
InstructionCombining and ValueTracking. Move the contents of
BinaryOperators.h into Operator.h and use Operator to generalize them
to support ConstantExprs as well as Instructions.
llvm-svn: 76232
2009-07-17 20:47:02 +00:00
482bd9dcb8
Initialize another Context, in the hopes of unbreaking CBE.
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llvm-svn: 76184
2009-07-17 16:20:23 +00:00
b8f6a4fc8e
Replace isTrapping with a new, similar method called
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isSafeToSpeculativelyExecute. The new method is a bit closer to what
the callers actually care about in that it rejects more things callers
don't want. It also adds more precise handling for integer
division, and unifies code for analyzing the legality of a speculative
load.
llvm-svn: 76150
2009-07-17 04:28:42 +00:00
20b34ac794
Move the ConstantInt uniquing table into LLVMContextImpl. This exposed a number of issues in
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our current context-passing stuff, which is also fixed here
llvm-svn: 76089
2009-07-16 18:04:31 +00:00
4fdeba9706
Revert yesterday's change by removing the LLVMContext parameter to AllocaInst and MallocInst.
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llvm-svn: 75863
2009-07-15 23:53:25 +00:00
Chris Lattner