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Author SHA1 Message Date
Wesley Peck
46a928b864 Implement branch analysis in the MBlaze backend. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119951 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 21:53:36 +00:00
Wesley Peck
6e749f31c6 Make it a little bit more explicit that the MBlaze backend only supports upto 
32-bit immediate values.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119950 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 21:39:46 +00:00
Wesley Peck
5437ba48ce Fix an error in the MBlaze delay slot filler where instructions that already 
fill a delay slot are moved to fill a different delay slot.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119949 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 21:36:12 +00:00
Chris Lattner
6ffdd45d86 fix comment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119948 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 19:05:34 +00:00
Chris Lattner
8bc1e45295 apparently tailcalls are better on darwin/x86-64 than on linux? 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119947 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 18:59:20 +00:00
Benjamin Kramer
dd061b2854 Initialize MemDep's TD member so buildbots don't trip over an uninitialized pointer (TD is passed to PHITransAddr). 
I wonder why this didn't explode earlier.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119944 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 15:21:46 +00:00
Duncan Sands
e60d79faf7 Add a rather pointless InstructionSimplify transform, inspired by recent constant 
folding improvements: if P points to a type of size zero, turn "gep P, N" into "P".
More generally, if a gep index type has size zero, instcombine could replace the
index with zero, but that is not done here.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119942 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 13:53:09 +00:00
Duncan Sands
e58391073f Fix spelling. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119941 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 12:43:13 +00:00
Bill Wendling
dcf0a47b76 More Thumb encodings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119940 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 11:49:36 +00:00
Bill Wendling
af2b573614 Add encoding for ARM "trap" instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119938 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 11:05:29 +00:00
Bill Wendling
9717fa9f29 The "trap" instruction is one of this which doesn't have a condition code. Hack 
the code to not add a "condition code" if it's trap.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119937 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 10:56:05 +00:00
Bill Wendling
7d0affdf02 - Give "trap" the correct encoding, at least according to Darwin's assembler. 
- Add comments saying where the encodings for other instructions came from.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119936 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 10:55:23 +00:00
Chris Lattner
c1da204c43 apply Dan's fix for PR8268 which allows constant folding to handle indexes over 
zero sized elements.  This allows us to compile:

  #include <string>
  void foo() { std::string s; }

into an empty function.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119933 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 08:39:01 +00:00
Chris Lattner
cbd323ad52 add some helper methods for asmprinter flags, from PR8417 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119932 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 08:30:55 +00:00
Chris Lattner
cbf5d74e6a implement PR8524, apparently mainline gas accepts movq as an alias for movd 
when transfering between i64 gprs and mmx regs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119931 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 08:18:57 +00:00
Chris Lattner
604f6fe553 rework some DSE paths to use the newly-public "getPointerDependencyFrom" 
method in MemDep instead of inserting an instruction, doing a query,
then removing it.  Neither operation is effectively cached.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119930 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 08:06:10 +00:00
Chris Lattner
16f7993e0d the getLocationForSource/Dest methods can be static. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119929 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 08:05:25 +00:00
Chris Lattner
e90c5cb747 add "getLocation" method to AliasAnalysis for getting the source and 
destination location of a memcpy/memmove.  I'm not clear about whether
TBAA works on these, so I'm leaving it out for now.  Dan, please revisit
this when convenient.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119928 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 07:51:27 +00:00
Chris Lattner
f6f1f062cc implement PR8576, deleting dead stores with intervening may-alias stores. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119927 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 07:34:32 +00:00
Chris Lattner
b7dfb970e6 file checkize 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119926 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 07:32:40 +00:00
Chris Lattner
3e41106de4 add some random notes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119925 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 07:05:31 +00:00
Owen Anderson
aa54524a44 Use by-name rather than by-order operand matching for some NEON encodings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119923 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 06:47:06 +00:00
Chris Lattner
75d8f599e7 optimize: 
void a(int x) { if (((1<<x)&8)==0) b(); }

into "x != 3", which occurs over 100 times in 403.gcc but in no
other program in llvm-test.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119922 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 06:44:42 +00:00
Chris Lattner
79a980ad85 tail calls on x86 are implemented. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119920 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 06:10:27 +00:00
Jim Grosbach
0eb49c57f0 BR_JTadd is ARM-only, so use the proper pseudo class to get the predicate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119918 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 01:26:01 +00:00
Rafael Espindola
12203cc7c3 Handle PCRel relocations with absolute values. Fixes PR8656. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119917 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 00:48:25 +00:00
Chris Lattner
2f5f90ad3e Implement PR8644: forwarding a memcpy value to a byval, 
allowing the memcpy to be eliminated.

Unfortunately, the requirements on byval's without explicit 
alignment are really weak and impossible to predict in the 
mid-level optimizer, so this doesn't kick in much with current
frontends.  The fix is to change clang to set alignment on all
byval arguments.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119916 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 00:28:59 +00:00
Chris Lattner
a6fd81dd7f a byval argument without an align can have an arbitrary alignment 
requirement on the input pointer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119914 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-20 23:49:06 +00:00
Bill Wendling
5cc88a205d A few more thumb instruction MC encodings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119913 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-20 22:52:33 +00:00
Eric Christopher
827656dab4 Rewrite address handling to use a structure with all the possible address 
mode variables. Handle frame indexes in load/store and allocas again.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119912 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-20 22:38:27 +00:00
Eric Christopher
13df1a0bac STRH only needs the additional operand, not t2STRH. Also invert conditional 
to match the one from the load emitter above.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119911 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-20 22:01:38 +00:00
Benjamin Kramer
f601d6df6f Simplify code. No change in functionality. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119908 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-20 18:43:35 +00:00
Frits van Bommel
1c3f050309 Test commit: Fix two -Asserts mode warnings in StringMap.h. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119907 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-20 18:37:24 +00:00
Anton Korobeynikov
0dbe54e844 Make this compile on case-sensitive file systemsw 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119905 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-20 16:14:57 +00:00
Anton Korobeynikov
82f58740c7 Move some more hooks to TargetFrameInfo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119904 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-20 15:59:32 +00:00
Benjamin Kramer
3ca136312a Silence Release build warnings about unused functions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119903 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-20 15:53:24 +00:00
Francois Pichet
0b8f0a208e Disable warning C4291 on MSVC. Caused because class AttributeList provides a non implemented operator delete without a corresponding new. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119902 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-20 15:39:03 +00:00
Duncan Sands
59d2dad59e On X86, MEMBARRIER, MFENCE, SFENCE, LFENCE are not target memory intrinsics, 
so don't claim they are.  They are allocated using DAG.getNode, so attempts
to access MemSDNode fields results in reading off the end of the allocated
memory.  This fixes crashes with "llc -debug" due to debug code trying to
print MemSDNode fields for these barrier nodes (since the crashes are not
deterministic, use valgrind to see this).  Add some nasty checking to try
to catch this kind of thing in the future.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119901 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-20 11:25:00 +00:00
Andrew Trick
b9e6fe1e3a Removing the useless test that I added recently. It was meant as an example, but not complicated enough to merit another test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119898 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-20 07:26:51 +00:00
Andrew Trick
316df4bfe3 RABasic fix. Regalloc is responsible for updating block live ins. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119896 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-20 02:57:05 +00:00
Andrew Trick
13bdbb0544 Whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119895 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-20 02:43:55 +00:00
Jakob Stoklund Olesen
487a5b786f Fix old GCC build error. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119884 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-20 01:24:43 +00:00
Bill Wendling
a09cc2b429 Add more Thumb add instruction encodings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119883 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-20 01:18:47 +00:00
Bill Wendling
95a6d1759d Add Thumb encodings for some add instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119882 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-20 01:00:29 +00:00
Bill Wendling
6179c31e07 Add more encodings for Thumb instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119881 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-20 00:53:35 +00:00
Jakob Stoklund Olesen
ddd0e65dba Detemplatize NodeRef. 
It is now possible to navigate the B+-tree using NodeRef::subtree() and
NodeRef::size() without knowing the key and value template types used in the
tree.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119880 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-20 00:49:00 +00:00
Jakob Stoklund Olesen
a3b1082bb1 Rename NodeBase::{key,val} as {first,second} and swap the BranchNode arrays such 
that the noderefs are the first member in the object.

This is in preparation of detemplatization of tree navigation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119879 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-20 00:48:57 +00:00
Bill Wendling
20272a7c5a Have the getAddrMode3OpValue() function in ARMCodeEmitter.cpp produce the same 
value that the one in ARMMCCodeEmitter.cpp does.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119878 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-20 00:26:37 +00:00
Bill Wendling
04d14ff349 Check for _setjmp too, because it's also used. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119875 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-20 00:03:09 +00:00
Jakob Stoklund Olesen
785ab18a05 Implement IntervalMap destructor. 
Key and value objects may not be destructed instantly when they are erased from
the container, but they will be destructed eventually by the IntervalMap
destructor.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119873 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-19 23:28:59 +00:00