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391 Commits

Author SHA1 Message Date
Rafael Espindola 26b43cac18 Fix a use after free on invalid input. 
llvm-svn: 193737
 2013-10-31 04:20:23 +00:00
Shuxin Yang 2e1890e18b Revert r193251 : Use address-taken to disambiguate global variable and indirect memops. 
llvm-svn: 193489
 2013-10-27 03:08:44 +00:00
Shuxin Yang e4fb375995 Use address-taken to disambiguate global variable and indirect memops. 
Major steps include:
 1). introduces a not-addr-taken bit-field in GlobalVariable
 2). GlobalOpt pass sets "not-address-taken" if it proves a global varirable 
    dosen't have its address taken.
 3). AA use this info for disambiguation. 

llvm-svn: 193251
 2013-10-23 17:28:19 +00:00
Manman Ren 209b17cdaa AutoUpgrade: upgrade from scalar TBAA format to struct-path aware TBAA format. 
We treat TBAA tags as struct-path aware TBAA format when the first operand
is a MDNode and the tag has 3 or more operands.

llvm-svn: 191593
 2013-09-28 00:22:27 +00:00
Peter Collingbourne 3fa50f9b05 Implement function prefix data as an IR feature. 
Previous discussion:
http://lists.cs.uiuc.edu/pipermail/llvmdev/2013-July/063909.html

Differential Revision: http://llvm-reviews.chandlerc.com/D1191

llvm-svn: 190773
 2013-09-16 01:08:15 +00:00
Joe Abbey 1a6e77080f Patch provide by Tom Roeder! 
Reviewed by Joe Abbey and Tobias Grosser

Here is a patch that fixes decoding of CE_SELECT in BitcodeReader,
along with a simple test case. The problem in the current code is that
it generates but doesn't accept bitcode that uses vectors for the
first element of a select in this context.

llvm-svn: 190634
 2013-09-12 22:02:31 +00:00
Bob Wilson e407736a06 Revert patches to add case-range support for PR1255. 
The work on this project was left in an unfinished and inconsistent state.
Hopefully someone will eventually get a chance to implement this feature, but
in the meantime, it is better to put things back the way the were.  I have
left support in the bitcode reader to handle the case-range bitcode format,
so that we do not lose bitcode compatibility with the llvm 3.3 release.

This reverts the following commits: 155464, 156374, 156377, 156613, 156704,
156757, 156804 156808, 156985, 157046, 157112, 157183, 157315, 157384, 157575,
157576, 157586, 157612, 157810, 157814, 157815, 157880, 157881, 157882, 157884,
157887, 157901, 158979, 157987, 157989, 158986, 158997, 159076, 159101, 159100,
159200, 159201, 159207, 159527, 159532, 159540, 159583, 159618, 159658, 159659,
159660, 159661, 159703, 159704, 160076, 167356, 172025, 186736

llvm-svn: 190328
 2013-09-09 19:14:35 +00:00
Andrea Di Biagio 377496bbad Add function attribute 'optnone'. 
This function attribute indicates that the function is not optimized
by any optimization or code generator passes with the 
exception of interprocedural optimization passes.

llvm-svn: 189101
 2013-08-23 11:53:55 +00:00
Tobias Grosser 0a8e12fdbb Make .bc en/decoding of AttrKind stable 
The bitcode representation attribute kinds are encoded into / decoded from
should be independent of the current set of LLVM attributes and their position
in the AttrKind enum. This patch explicitly encodes attributes to fixed bitcode
values.

With this patch applied, LLVM does not silently misread attributes written by
LLVM 3.3. We also enhance the decoding slightly such that an error message is
printed if an unknown AttrKind encoding was dected.

Bonus: Dropping bitcode attributes from AttrKind is now easy, as old AttrKinds
       do not need to be kept to support the Bitcode reader.
llvm-svn: 187186
 2013-07-26 04:16:55 +00:00
Benjamin Kramer 534d3a4670 Remove the Copied parameter from MemoryObject::readBytes. 
There was exactly one caller using this API right, the others were relying on
specific behavior of the default implementation. Since it's too hard to use it
right just remove it and standardize on the default behavior.

Defines away PR16132.

llvm-svn: 182636
 2013-05-24 10:54:58 +00:00
Dmitri Gribenko 3238fb7595 Add ArrayRef constructor from None, and do the cleanups that this constructor enables 
Patch by Robert Wilhelm.

llvm-svn: 181138
 2013-05-05 00:40:33 +00:00
Bill Wendling 0dc08915d2 Have the bitcode writer and reader handle the new attribute references. 
The bitcode writer emits a reference to the attribute group that the object at
the given index refers to. The bitcode reader is modified to read this in and
map it back to the attribute group.

llvm-svn: 174952
 2013-02-12 08:13:50 +00:00
Bill Wendling e46707e4c7 Use a std::map so that we record the group ID. 
llvm-svn: 174910
 2013-02-11 22:32:29 +00:00
Kostya Serebryany d688bab563 [tsan/msan] adding thread_safety and uninitialized_checks attributes 
llvm-svn: 174864
 2013-02-11 08:13:54 +00:00
Bill Wendling ba629335de Add support in the bitcode reader to read the attribute groups. 
This reads the attribute groups. It currently doesn't do anything with them.

NOTE: In the commit to the bitcode writer, the format *may* change in the near
future. Which means that this code would also change.

llvm-svn: 174849
 2013-02-10 23:24:25 +00:00
Joe Abbey 97b7a1719e Code Custodian (trivial whitespace cleanup) 
llvm-svn: 174550
 2013-02-06 22:14:06 +00:00
Michael Gottesman 27e7ef326a Added LLVM Asm/Bitcode Reader/Writer support for new IR keyword externally_initialized. 
llvm-svn: 174340
 2013-02-05 05:57:38 +00:00
Bill Wendling 56aecccee0 Initial cleanups of the param-attribute code in the bitcode reader/writer. 
Rename the PARAMATTR_CODE_ENTRY to PARAMATTR_CODE_ENTRY_OLD. It will be replaced
by another encoding. Keep around the current LLVM attribute encoder/decoder
code, but move it to the bitcode directories so that no one's tempted to use
them.

llvm-svn: 174335
 2013-02-04 23:32:23 +00:00
Bill Wendling 60011b8e27 Use an AttrBuilder to generate the correct AttributeSet. 
We no longer accept an encoded integer as representing all of the
attributes. Convert this via the AttrBuilder class into an AttributeSet with the
correct representation (an AttributeSetImpl that holds a list of Attribute
objects).

llvm-svn: 173750
 2013-01-29 01:43:29 +00:00
Bill Wendling 71173cb7dc Use the AttributeSet instead of AttributeWithIndex object. 
llvm-svn: 173598
 2013-01-27 00:36:48 +00:00
Bill Wendling 57625a4966 Remove some introspection functions. 
The 'getSlot' function and its ilk allow introspection into the AttributeSet
class. However, that class should be opaque. Allow access through accessor
methods instead.

llvm-svn: 173522
 2013-01-25 23:09:36 +00:00
Tim Northover 29178a348a Make APFloat constructor require explicit semantics. 
Previously we tried to infer it from the bit width size, with an added
IsIEEE argument for the PPC/IEEE 128-bit case, which had a default
value. This default value allowed bugs to creep in, where it was
inappropriate.

llvm-svn: 173138
 2013-01-22 09:46:31 +00:00
Chris Lattner 8d14053545 trivial micro-optimization: lazily call the virtual method instead of eagerly calling it. 
llvm-svn: 172953
 2013-01-20 02:54:05 +00:00
Chris Lattner 27d3875027 convert the bitstream reader itself and the IR .bc file parser to use the new advance() APIs, 
simplifying things and making a bunch of details more private to BitstreamCursor.

llvm-svn: 172947
 2013-01-20 02:13:19 +00:00
Chris Lattner ab7701749c Add a new BitstreamEntry concept, and add two helper methods for walking 
through a BitstreamCursor that produce it: advance() and 
advanceSkippingSubblocks(), representing the two most common ways clients
want to walk through bitcode.

llvm-svn: 172919
 2013-01-19 21:35:24 +00:00