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82 Commits

Author SHA1 Message Date
Chris Lattner
077cdfcadb fix PR9015, a crash linking recursive metadata. 
llvm-svn: 124099
 2011-01-24 03:18:24 +00:00
Chris Lattner
397937fa0d Revamp the ValueMapper interfaces in a couple ways: 
1. Take a flags argument instead of a bool.  This makes
   it more clear to the reader what it is used for.
2. Add a flag that says that "remapping a value not in the
   map is ok".
3. Reimplement MapValue to share a bunch of code and be a lot
   more efficient.  For lookup failures, don't drop null values
   into the map.
4. Using the new flag a bunch of code can vaporize in LinkModules
   and LoopUnswitch, kill it.

No functionality change.

llvm-svn: 123058
 2011-01-08 08:15:20 +00:00
Rafael Espindola
16d5617ec3 Fix PR8313 by changing ValueToValueMap use a TrackingVH. 
llvm-svn: 116390
 2010-10-13 02:08:17 +00:00
Dan Gohman
8088d5e31d Reapply r112091 and r111922, support for metadata linking, with a 
fix: add a flag to MapValue and friends which indicates whether
any module-level mappings are being made. In the common case of
inlining, no module-level mappings are needed, so MapValue doesn't
need to examine non-function-local metadata, which can be very
expensive in the case of a large module with really deep metadata
(e.g. a large C++ program compiled with -g).

This flag is a little awkward; perhaps eventually it can be moved
into the ClonedCodeInfo class.

llvm-svn: 112190
 2010-08-26 15:41:53 +00:00
Daniel Dunbar
3839de70f5 Revert r111922, "MapValue support for MDNodes. This is similar to r109117, 
except ...", it is causing *massive* performance regressions when building Clang
with itself (-O3 -g).

llvm-svn: 112158
 2010-08-26 03:48:11 +00:00
Daniel Dunbar
aeb8abb0e0 Revert r112091, "Remap metadata attached to instructions when remapping 
individual ...", which depends on r111922, which I am reverting.

llvm-svn: 112157
 2010-08-26 03:48:08 +00:00
Dan Gohman
d19a0a49d1 Remap metadata attached to instructions when remapping individual 
instructions, not when remapping modules.

llvm-svn: 112091
 2010-08-25 21:36:50 +00:00
Dan Gohman
30fd721e48 Use MapValue in the Linker instead of having a private function 
which does the same thing. This eliminates redundant code and
handles MDNodes better. MDNode linking still doesn't fully
work yet though.

llvm-svn: 111941
 2010-08-24 18:50:07 +00:00
Dan Gohman
5cbd5888e7 MapValue support for MDNodes. This is similar to r109117, except 
that it avoids a lot of unnecessary cloning by avoiding remapping
MDNode cycles when none of the nodes in the cycle actually need to
be remapped. Also it uses the new temporary MDNode mechanism.

llvm-svn: 111922
 2010-08-24 17:10:10 +00:00
Nick Lewycky
8cbc57da86 Revert this because we can't clone cyclic MDNodes which are creating during a 
build of llvm-gcc.

llvm-svn: 109355
 2010-07-24 20:54:02 +00:00
Nick Lewycky
7094bd27bc Whether function-local or not, a MDNode may reference a Function in which case 
it needs to be mapped to refer to the function in the new module, not the old
one. Fixes PR7700.

llvm-svn: 109353
 2010-07-24 19:43:25 +00:00
Devang Patel
f53de95e64 Speculatively revert 109117 
llvm-svn: 109132
 2010-07-22 18:44:00 +00:00
Devang Patel
58b7143697 Map MDNode correctly. 
A non function local MDNode can have an operand which is cloned by MapValue(). 

llvm-svn: 109117
 2010-07-22 16:35:00 +00:00
Devang Patel
1c47157b66 MDString is already checked earlier. 
llvm-svn: 107516
 2010-07-02 21:13:23 +00:00
Devang Patel
373b10cbaa Cosmetic change. 
Do not use "ValueMap" as a name for a local variable or an argument.

llvm-svn: 106698
 2010-06-23 23:55:51 +00:00
Devang Patel
1967a51efc Revert 106592 for now. It causes clang-selfhost build failure. 
llvm-svn: 106598
 2010-06-22 23:29:55 +00:00
Devang Patel
a24bf5907c If a metadata operand is seeded in value map and the metadata should also be seeded in value map. This is not limited to function local metadata. 
Failure to seed metdata in such cases causes troubles when in a cloned module, metadata from a new module refers to values in old module. Usually this results in mysterious bugpoint crashes. For example,

 Checking to see if we can delete global inits: Unknown constant!
 UNREACHABLE executed at /d/g/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp:904!

llvm-svn: 106592
 2010-06-22 22:53:21 +00:00
Devang Patel
981ff4464c Revert 106528. It is causing self host failures. 
llvm-svn: 106529
 2010-06-22 06:14:09 +00:00
Devang Patel
d5696fa05b Do not rely on DenseMap slot which can be easily invalidated when DenseMap grows. 
llvm-svn: 106528
 2010-06-22 05:16:56 +00:00
Devang Patel
ef601352ff Rename ValueMapTy as ValueToValueMapTy to clearly indicate that this has no replationship with ADT/ValueMap. 
llvm-svn: 101950
 2010-04-20 22:24:18 +00:00
Devang Patel
788913a131 There is no need to install ValueMapper.h header. 
llvm-svn: 101949
 2010-04-20 22:18:31 +00:00
Victor Hernandez
4e7937f77b Avoid extra calls to MD->getNumOperands() 
llvm-svn: 94618
 2010-01-26 23:29:09 +00:00
Chris Lattner
642049e127 It turns out that this #include is needed because otherwise 
ValueMapper.cpp ends up calling an out of line 
__ZNK4llvm12PATypeHolder3getEv, which is a template and llvm-config
determines arbitrarily to use the one in libipo.  This sucks, but
keeping the #include is a reasonable workaround.

llvm-svn: 94103
 2010-01-21 21:29:25 +00:00
Chris Lattner
3547371b0b unbreak the build, apparently without this transformutils starts depending on libipa? 
llvm-svn: 94102
 2010-01-21 21:20:51 +00:00
Chris Lattner
3f91babac8 tidy up 
llvm-svn: 94101
 2010-01-21 21:05:54 +00:00
Victor Hernandez
507d86fcbb Don't need to include IntrinsicInst.h any more 
llvm-svn: 94092
 2010-01-21 19:33:59 +00:00
Victor Hernandez
3a31114cf9 No need to map NULL operands of metadata 
llvm-svn: 94091
 2010-01-21 19:26:20 +00:00
Victor Hernandez
50e7dcdcc2 Switch Elts from vector to SmallVector 
llvm-svn: 93989
 2010-01-20 06:56:16 +00:00
Victor Hernandez
d79e7e0e12 Map operands of all function-local metadata, not just metadata passed to llvm.dbg.declare intrinsics 
llvm-svn: 93979
 2010-01-20 05:49:59 +00:00
Devang Patel
2cae5754c6 While mapping llvm.dbg.declare intrinsic manually map its operand, if possible, 
because it points to an alloca instruction through metadata.

llvm-svn: 93757
 2010-01-18 19:52:14 +00:00
Chris Lattner
2bbe57b2b8 Revert 85678/85680. The decision is to stay with the current form of 
indirectbr, thus we don't need "blockaddr(@func, null)".  Eliminate it
for simplicity.

llvm-svn: 85699
 2009-11-01 01:27:45 +00:00
Chris Lattner
48de74645e adjust a couple xforms to work with null bb's in BlockAddress. 
llvm-svn: 85680
 2009-10-31 20:13:24 +00:00
Chris Lattner
a0e35cae82 teach various passes about blockaddress. We no longer 
crash on any clang tests.

llvm-svn: 85465
 2009-10-29 01:21:20 +00:00
Chris Lattner
0a782eec94 teach ValueMapper about BlockAddress', making bugpoint a lot more useful. 
llvm-svn: 85458
 2009-10-29 00:31:02 +00:00
Chris Lattner
8f70e602d3 unindent massive blocks, no functionality change. 
llvm-svn: 85457
 2009-10-29 00:28:30 +00:00
Dan Gohman
07044648b2 MapValue doesn't needs its LLVMContext argument. 
llvm-svn: 85020
 2009-10-24 23:37:16 +00:00
Devang Patel
cb23671431 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
Owen Anderson
390e9778d4 Return ConstantVector to 2.5 API. 
llvm-svn: 77366
 2009-07-28 21:19:26 +00:00
Owen Anderson
aa8c94b051 Change ConstantArray to 2.5 API. 
llvm-svn: 77347
 2009-07-28 18:32:17 +00:00
Owen Anderson
d729f993b8 Move ConstantStruct back to 2.5 API. 
llvm-svn: 77266
 2009-07-27 22:29:26 +00:00
Devang Patel
dfa0528df7 Do not seed mstadata into the value map. 
llvm-svn: 77208
 2009-07-27 17:17:04 +00:00
Owen Anderson
cc287b28c9 Get rid of the Pass+Context magic. 
llvm-svn: 76702
 2009-07-22 00:24:57 +00:00
Torok Edwin
f955a6ef49 llvm_unreachable->llvm_unreachable(0), LLVM_UNREACHABLE->llvm_unreachable. 
This adds location info for all llvm_unreachable calls (which is a macro now) in
!NDEBUG builds.
In NDEBUG builds location info and the message is off (it only prints
"UREACHABLE executed").

llvm-svn: 75640
 2009-07-14 16:55:14 +00:00
Torok Edwin
ae8a3ff177 assert(0) -> LLVM_UNREACHABLE. 
Make llvm_unreachable take an optional string, thus moving the cerr<< out of
line.
LLVM_UNREACHABLE is now a simple wrapper that makes the message go away for
NDEBUG builds.

llvm-svn: 75379
 2009-07-11 20:10:48 +00:00
Owen Anderson
121f736d9c "LLVMContext* " --> "LLVMContext *" 
llvm-svn: 74878
 2009-07-06 23:00:19 +00:00
Owen Anderson
977aa11bc6 More LLVMContext-ification. 
llvm-svn: 74807
 2009-07-05 22:41:43 +00:00
Nick Lewycky
a9de2f1c81 Give embedded metadata its own type instead of relying on EmptyStructTy. 
llvm-svn: 72610
 2009-05-30 05:06:04 +00:00
Gabor Greif
d931decf37 rewrite operand loops to use iterators 
llvm-svn: 51789
 2008-05-30 21:24:22 +00:00
Chris Lattner
ad9a6ccb83 Remove attribution from file headers, per discussion on llvmdev. 
llvm-svn: 45418
 2007-12-29 20:36:04 +00:00
Anton Korobeynikov
369f4381ea Forget to commit users part of value mapper interface 
llvm-svn: 43940
 2007-11-09 12:27:04 +00:00