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7 Commits

Author SHA1 Message Date
Nuno Lopes
5e1d0d39db fix PR17635: false positive with packed structures 
LLVM optimizers may widen accesses to packed structures that overflow the structure itself, but should be in bounds up to the alignment of the object

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193317 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-10-24 09:17:24 +00:00
Benjamin Kramer
2f08433210 ObjectSizeOffsetEvaluator: Don't run into infinite recursion if we have a cyclic GEP. 
Those can occur in dead code. PR17402.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191644 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-09-29 19:39:13 +00:00
Daniel Dunbar
24ec2e5a72 [tests] Cleanup initialization of test suffixes. 
- Instead of setting the suffixes in a bunch of places, just set one master
   list in the top-level config. We now only modify the suffix list in a few
   suites that have one particular unique suffix (.ml, .mc, .yaml, .td, .py).

 - Aside from removing the need for a bunch of lit.local.cfg files, this enables
   4 tests that were inadvertently being skipped (one in
   Transforms/BranchFolding, a .s file each in DebugInfo/AArch64 and
   CodeGen/PowerPC, and one in CodeGen/SI which is now failing and has been
   XFAILED).

 - This commit also fixes a bunch of config files to use config.root instead of
   older copy-pasted code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188513 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-08-16 00:37:11 +00:00
Nuno Lopes
6e699bf38d revert r160742: it's breaking CMake build 
original commit msg:
MemoryBuiltins: add support to determine the size of strdup'ed non-constant strings

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160751 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-07-25 18:49:28 +00:00
Nuno Lopes
e3094283e3 MemoryBuiltins: add support to determine the size of strdup'ed non-constant strings 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160742 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-07-25 17:29:22 +00:00
Nuno Lopes
c606c3ff91 baby steps toward fixing some problems with inbound GEPs that overflow, as discussed 2 months ago or so. 
Make sure we do not emit index computations with NSW flags so that we dont get an undef value if the GEP overflows

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160589 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-07-20 23:07:40 +00:00
Nuno Lopes
78435f6bb7 move the bounds checking pass to the instrumentation folder, where it belongs. I dunno why in the world I dropped it in the Scalar folder in the first place. 
No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160587 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-07-20 22:39:33 +00:00