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Author SHA1 Message Date
Benjamin Kramer
fdb96062b2 SimplifyCFG: Enumerating all predecessors of a BB can be expensive (switches), avoid it if possible. 
No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164923 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-30 21:03:56 +00:00
Dmitri Gribenko
8bd5e35978 RST docs: convert HTML escapes to plain text in code examples. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164922 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-30 20:51:02 +00:00
Dmitri Gribenko
58c7ea7361 Sphinx CSS: remove negative letter-spacing, it makes some fonts look really 
bad.  Fonts already have appropriate tracking built-in.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164921 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-30 20:43:24 +00:00
Jakub Staszak
bfa43c0422 Fix && to && in Coding Standards. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164920 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-30 20:42:13 +00:00
Craig Topper
f4d25a2c46 Change getX86SubSuperRegister to take an MVT::SimpleValueType rather than an EVT and add llvm_unreachable to the switches. Helps it compile to dramatically better code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164919 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-30 19:49:56 +00:00
Benjamin Kramer
72f0976c1b ArgumentPromotion: Remove ancient workaround for a bug in the C backend. 
Fun fact: The CBE learned how to deal with this situation before it was removed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164918 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-30 17:31:56 +00:00
Duncan Sands
b620469223 Ignore apparent buffer overruns on external or weak globals. This is a major 
source of false positives due to globals being declared in a header with some
kind of incomplete (small) type, but the actual definition being bigger.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164912 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-30 07:30:10 +00:00
Nadav Rotem
73fab91f2c Revert r164910 because it causes failures to several phase2 builds. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164911 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-30 07:17:56 +00:00
Nadav Rotem
e5f163a3b9 A DAGCombine optimization for merging consecutive stores. This optimization is not profitable in many cases 
because moden processos can store multiple values in parallel, and preparing the consecutive store requires
some work.  We only handle these cases:

1. Consecutive stores where the values and consecutive loads. For example:
 int a = p->a;
 int b = p->b;
 q->a = a;
 q->b = b;

2. Consecutive stores where the values are constants. Foe example:
 q->a = 4;
 q->b = 5;



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164910 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-30 06:24:14 +00:00
Bob Wilson
eb1641d54a Add LLVM support for Swift. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164899 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-29 21:43:49 +00:00
Bob Wilson
154418cdd8 Whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164898 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-29 21:27:31 +00:00
Benjamin Kramer
01e872af25 Shrink TargetAlignElem a bit, we do a lot of searches on them. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164897 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-29 19:57:14 +00:00
Chandler Carruth
b67c9a5b02 Fix a somewhat surprising miscompile where code relying on an ABI 
alignment could lose it due to the alloca type moving down to a much
smaller alignment guarantee.

Now SROA will actively compute a proper alignment, factoring the target
data, any explicit alignment, and the offset within the struct. This
will in some cases lower the alignment requirements, but when we lower
them below those of the type, we drop the alignment entirely to give
freedom to the code generator to align it however is convenient.

Thanks to Duncan for the lovely test case that pinned this down. =]

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164891 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-29 10:41:21 +00:00
Duncan Sands
454627252b Speculatively revert commit 164885 (nadav) in the hope of ressurecting a pile of 
buildbots.  Original commit message:

A DAGCombine optimization for merging consecutive stores. This optimization is not profitable in many cases
because moden processos can store multiple values in parallel, and preparing the consecutive store requires
some work.  We only handle these cases:

1. Consecutive stores where the values and consecutive loads. For example:
  int a = p->a;
  int b = p->b;
  q->a = a;
  q->b = b;

2. Consecutive stores where the values are constants. Foe example:
  q->a = 4;
  q->b = 5;



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164890 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-29 10:25:35 +00:00
Craig Topper
0eb5dadf65 Tidy up to match coding standards. Remove 'else' after 'return' and moving operators to end of preceding line. No functional change intended. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164887 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-29 07:18:53 +00:00
Craig Topper
32b7343a96 Replace a couple if/elses around similar calls with conditional operators on the varying arguments. No functional change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164886 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-29 06:54:22 +00:00
Nadav Rotem
72f7b0811e A DAGCombine optimization for merging consecutive stores. This optimization is not profitable in many cases 
because moden processos can store multiple values in parallel, and preparing the consecutive store requires
some work.  We only handle these cases:

1. Consecutive stores where the values and consecutive loads. For example:
  int a = p->a;
  int b = p->b;
  q->a = a;
  q->b = b;

2. Consecutive stores where the values are constants. Foe example:
  q->a = 4;
  q->b = 5;



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164885 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-29 06:33:25 +00:00
Craig Topper
aa64c18280 Remove more LLVM_DELETED_FUNCTIONs from destructors to fix -std=c++11 build on gcc 4.7. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164880 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-29 02:25:34 +00:00
Evan Cheng
aa7e47416a Add test case for r164850. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164867 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-29 00:12:08 +00:00
Evan Cheng
465970736b Do not delete BBs if their addresses are taken. rdar://12396696 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164866 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-28 23:58:57 +00:00
Bill Wendling
dc998ccb65 Don't use bit-wise operations to query for inclusion/exclusion of attributes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164860 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-28 22:30:18 +00:00
Evan Cheng
f5fdc14df9 GlobalDCE should be run at -O2 / -Os to eliminate unused dtor, etc. rdar://9142819 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164850 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-28 21:23:26 +00:00
Akira Hatanaka
21731d876c MIPS DSP: add operands to make sure instruction strings are being matched. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164849 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-28 21:23:16 +00:00
Bill Wendling
6eec6ffb9b Remove unused methods. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164848 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-28 21:22:24 +00:00
Sean Silva
74a19f0729 docs: dedent list on index.rst 
In reStructuredText, indented blocks denote block quotes [1]. This list
is not a block quote.

[1]. http://docutils.sourceforge.net/docs/ref/rst/restructuredtext.html#block-quotes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164847 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-28 21:18:37 +00:00
Akira Hatanaka
93ba059e48 MIPS DSP: other miscellaneous instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164845 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-28 20:50:31 +00:00
Manman Ren
284c1004f7 Testcase for r164835 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164842 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-28 20:26:33 +00:00
Akira Hatanaka
e91ff1d135 MIPS DSP: ADDUH.QB instruction sub-class. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164840 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-28 20:16:04 +00:00
Manman Ren
bc96bcdaf9 X86: when replacing SUB with TEST in ISelDAGToDAG, only replace uses of the 
second output of SUB with first output of TEST.

PR13966


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164835 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-28 18:53:24 +00:00
Andrew Kaylor
770b97b995 Removing dependency on third party library for Intel JIT event support. 
Patch committed on behalf of Kirill Uhanov

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164831 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-28 17:35:20 +00:00
Benjamin Kramer
07b4d5592a PackedVector: Make the BitVector implementation configurable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164826 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-28 16:40:29 +00:00
Benjamin Kramer
deda7b6e75 Provide malloc-free sentinels for the SparseBitVector internals. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164823 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-28 15:36:41 +00:00
Dmitri Gribenko
04cb564c8d Replace the use of strncpy() and sprintf() with std::string and LLVM streams. 
Patch by Martinez, Javier E.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164822 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-28 14:15:28 +00:00
Benjamin Kramer
8be16fe703 CorrelatedPropagation: BasicBlock::removePredecessor can simplify PHI nodes. If the it's the condition of a SwitchInst, reload it. 
Fixes PR13972.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164818 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-28 10:42:50 +00:00
Benjamin Kramer
53347ed2f8 Make backtraces work again with both the configure and cmake build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164817 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-28 10:10:46 +00:00
Benjamin Kramer
ab16423c91 GlobalOpt: non-constexpr bitcasts or GEPs can occur even if the global value is only stored once. 
Fixes PR13968.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164815 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-28 10:01:27 +00:00
Nick Lewycky
7e0e166d17 Surprisingly, we missed a trivial case here. Fix that! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164814 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-28 09:33:53 +00:00
Craig Topper
8bb12aeeb4 Remove a LLVM_DELETED_FUNCTION from destructor to fix -std=c++11 build on gcc 4.7. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164813 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-28 07:17:01 +00:00
Reed Kotler
c94a38ff17 1. Add load/store words from the stack 
2. As part of this, added assembly format FEXT_RI16_SP_explicit_ins and
moved other lines for FEXT_RI16 formats to be in the right place in the code.
3. Added mayLoad and mayStore assignements for the load/store instructions added and for ones already there that did not have this assignment.
4. Another patch will deal with the problem of load/store byte/halfword to the stack. This is a particular Mips16 problem.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164811 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-28 02:26:24 +00:00
Jakob Stoklund Olesen
83ef63efce Remove <def,read-undef> flags from partial redefinitions. 
The new coalescer can turn a full virtual register definition into a
partial redef by merging another value into an unused vector lane.

Make sure to clear the <read-undef> flag on such defs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164807 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-27 23:31:32 +00:00
Micah Villmow
6f6ea93c92 Fix more crlf issues. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164805 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-27 22:14:10 +00:00
Meador Inge
ce71822d38 instcombine: Add more test cases for __strncpy_chk simplification 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164800 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-27 21:21:31 +00:00
Meador Inge
a968582978 instcombine: Add more test cases for __strcpy_chk simplification 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164799 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-27 21:21:28 +00:00
Meador Inge
c8613c9089 instcombine: Add more test cases for __memmove_chk simplification 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164798 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-27 21:21:25 +00:00
Meador Inge
012ffd251b instcombine: Add more test cases for __memcpy_chk simplification 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164797 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-27 21:21:21 +00:00
Meador Inge
910c564d3b instcombine: Add more test cases for __memset_chk simplification 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164796 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-27 21:21:18 +00:00
Jakob Stoklund Olesen
5cf178f281 Enable the new coalescer algorithm by default. 
The new coalescer is better at merging values into unused vector lanes,
improving NEON code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164794 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-27 21:06:02 +00:00
Jakob Stoklund Olesen
657720bc6e Don't dereference begin() on an empty vector. 
The fix is obvious and the only test case I have is horrible, so I am
not including it. The problem shows up when self-hosting clang on i386
with -new-coalescer enabled.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164793 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-27 21:05:59 +00:00
Akira Hatanaka
cb39aa05af MIPS DSP: ABSQ_S.PH instruction sub-class. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164787 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-27 19:09:21 +00:00
Akira Hatanaka
23bb38f034 MIPS DSP: SHLL.QB instruction sub-class. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164786 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-27 19:05:08 +00:00