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Author SHA1 Message Date
Owen Anderson
af9e467544 Remove more uses of std::set. 
llvm-svn: 54787
 2008-08-14 21:01:00 +00:00
Devang Patel
67f9b08a91 If IV is used in a int-to-float cast inside the loop then try to eliminate the cast opeation. 
llvm-svn: 54786
 2008-08-14 20:58:31 +00:00
Owen Anderson
3c7772990a Have LeakDetector use a SmallPtrSet instead of an std::set. 
llvm-svn: 54785
 2008-08-14 20:40:10 +00:00
Dan Gohman
b0f5e18201 Improve support for vector casts in LLVM IR and CodeGen. 
llvm-svn: 54784
 2008-08-14 20:04:46 +00:00
Owen Anderson
169e5e5b99 Speed up addRegisterDead by adding more fast checks before performing the expensive 
subregister query, and by increasing the size of the subregister hashtable so
that there are fewer collisions.

llvm-svn: 54781
 2008-08-14 18:34:18 +00:00
Dan Gohman
027326ba3e Use empty() instead of begin() == end(). 
llvm-svn: 54780
 2008-08-14 18:13:49 +00:00
Matthijs Kooijman
3bbc2deb9c Replace two for loops with while(!X->use_empty()) loops. This prevents 
invalidating the iterator by deleting the current use. This fixes a segfault on
64 bit linux reported in PR2675.

Also remove an unneeded if.

llvm-svn: 54778
 2008-08-14 15:03:05 +00:00
Owen Anderson
34aee11210 Get rid of a use of std::map. 
llvm-svn: 54770
 2008-08-13 23:36:23 +00:00
Dan Gohman
db5b503d60 Fix a bogus srem rule - a negative value srem'd by a power-of-2 
can have a non-negative result; for example, -16%16 is 0. Also,
clarify the related comments. This fixes PR2670.

llvm-svn: 54767
 2008-08-13 23:12:35 +00:00
Owen Anderson
de29970fc6 Expunge the last uses of std::map from LiveIntervals. 
llvm-svn: 54766
 2008-08-13 22:28:50 +00:00
Owen Anderson
550fc15832 Move r2iMap_ over to DenseMap from std::map. 
llvm-svn: 54765
 2008-08-13 22:08:30 +00:00
Dan Gohman
096cdc6059 Allow SelectionDAG to create EXTRACT_VECTOR_ELT nodes with 
non-constant indices. Only a few of the peephole checks require
a constant index.

llvm-svn: 54764
 2008-08-13 21:51:37 +00:00
Owen Anderson
28f2e658f1 Make the allocation of LiveIntervals explicit, rather than holding them in the r2iMap_ by value. This will prevent references to them from being invalidated 
if the map is changed.

llvm-svn: 54763
 2008-08-13 21:49:13 +00:00
Owen Anderson
612fc9babc Switch this from std::map to DenseMap. 
llvm-svn: 54761
 2008-08-13 21:24:24 +00:00
Dan Gohman
374d9328b7 Fix SCCP's handling of struct value loads and stores. SCCP doesn't 
track individual leaf values in such cases, so it needs to treat
struct values as normal values in this case.

llvm-svn: 54760
 2008-08-13 21:22:48 +00:00
Daniel Dunbar
e249d30421 Add default constructor to APSInt 
- Creates uninitialized APInt. 
 - Prevents need for embedding arbitrary constants when used as an out
   parameter, for example.

llvm-svn: 54757
 2008-08-13 20:53:17 +00:00
Daniel Dunbar
4e592412d4 Update makellvm to return correct result code. 
llvm-svn: 54756
 2008-08-13 20:43:56 +00:00
Devang Patel
bb9cb77326 Rename. s/FindIVForUser/FindIVUserForCond/g 
llvm-svn: 54754
 2008-08-13 20:31:11 +00:00
Duncan Sands
26e54f3570 Teach constant folding that an inttoptr of a 
ptrtoint can be turned into a bitcast if the
integer is at least as wide as a pointer.

llvm-svn: 54752
 2008-08-13 20:20:35 +00:00
Dan Gohman
4b1b033f89 Initial checkin of the new "fast" instruction selection support. See 
the comments in FastISelEmitter.cpp for details on what this is.
This is currently experimental and unusable.

llvm-svn: 54751
 2008-08-13 20:19:35 +00:00
Dan Gohman
502d2aebff Oops, check in these files too, for the FastISel -> Fast rename. 
llvm-svn: 54750
 2008-08-13 19:55:00 +00:00
Dan Gohman
9e27bed4f0 Rename SelectionDAGISel's FastISel to Fast, to begin to make 
room for the new FastISel instruction selection code.

llvm-svn: 54749
 2008-08-13 19:47:40 +00:00
Dale Johannesen
b23672a4e3 Generated files for 54744. 
llvm-svn: 54745
 2008-08-13 18:41:46 +00:00
Dale Johannesen
c3d88ff804 Add read/write support for X86's sseregparm. 
llvm-svn: 54744
 2008-08-13 18:40:23 +00:00
Owen Anderson
9007c9afde Get rid of unused variable. 
llvm-svn: 54742
 2008-08-13 17:44:52 +00:00
Owen Anderson
95ac2ab349 1) Merge entire live intervals instead of parts of them. 
2) Conditionalize temporary insertion if we don't need it.

llvm-svn: 54741
 2008-08-13 17:25:42 +00:00
Duncan Sands
77e09ca5d0 Rename this, in case people think that NullFolder 
has something to do with folding null values.

llvm-svn: 54725
 2008-08-13 08:56:48 +00:00
Bruno Cardoso Lopes
97e12b0e44 Removed SELECT_CC custom lowering. This is not needed anymore, the SELECT node 
is lowered properly and covers everything LowerSELECT_CC did.
Added method printUnsignedImm in AsmPrinter to print uimm16 operands. This
avoid the ugly instruction by instruction checking in printOperand.
Added a swap instruction present in the allegrex core.
Added two conditional instructions present in the allegrex core : MOVZ and MOVN.
They both allow a more efficient SELECT operation for integers.
Also added SELECT patterns to optimize MOVZ and MOVN usage.
The brcond and setcc patterns were cleaned: redundant and suboptimal patterns
were
removed. The suboptimals were replaced by more efficient ones.
Fixed some instructions that were using immZExt16 instead of immSExt16.

llvm-svn: 54724
 2008-08-13 07:13:40 +00:00
Devang Patel
a82e51a430 Check sign to detect overflow before changing compare stride. 
llvm-svn: 54710
 2008-08-13 02:05:14 +00:00
Dale Johannesen
686068490f When resolving a stub in x86-64 JIT, use a PC-relative branch 
rather than the absolute address if the target is within range.

llvm-svn: 54708
 2008-08-12 23:20:24 +00:00
Bill Wendling
d910182ca9 Remove tabs. 
llvm-svn: 54707
 2008-08-12 23:15:44 +00:00
Bill Wendling
b1b6acfb74 Update. Remove bogus webpage. 
llvm-svn: 54705
 2008-08-12 21:55:54 +00:00
Dale Johannesen
4dc25a234c Make x86-64 JIT changes Darwin-specific. 
llvm-svn: 54700
 2008-08-12 21:02:08 +00:00
Duncan Sands
0f1ba9dee5 Add a NullFolder class that doesn't fold constants. 
This may be used as the second IRBuilder template
parameter, the idea being that people learning LLVM
may find it helpful (several people asked on IRC
if it was possible to turn off constant folding
because it made it hard for them to see what was
going on).  Compiles, but otherwise completely
untested.

llvm-svn: 54698
 2008-08-12 20:39:27 +00:00
Dan Gohman
37da9e9dbd Extend ScalarEvolution's executesAtLeastOnce logic to be able to 
continue past the first conditional branch when looking for a
relevant test. This helps it avoid using MAX expressions in
loop trip counts in more cases.

llvm-svn: 54697
 2008-08-12 20:17:31 +00:00
Jim Grosbach
df52e6897d Whitespace cleanup. Test commit. 
llvm-svn: 54695
 2008-08-12 18:34:45 +00:00
Dale Johannesen
74bf5907fa In the absence of a linker to build the GOT, use the 32-bit 
non_lazy_ptr mechanism on x86-64 Darwin JIT.  Fixes a bunch
of last night's failures.

llvm-svn: 54692
 2008-08-12 18:23:48 +00:00
Dan Gohman
f927e9615f Correct the filename in the top-of-file comment. 
llvm-svn: 54688
 2008-08-12 17:42:33 +00:00
Dan Gohman
74ac3fddee Avoid repeatedly reallocating the FoldingSetNodeID when searching 
through multiple nodes in a bucket.

llvm-svn: 54687
 2008-08-12 17:40:22 +00:00
Devang Patel
d0aabe5ce6 Use SmallVector instead of std::vector 
llvm-svn: 54685
 2008-08-12 15:44:31 +00:00
Duncan Sands
ceacf7d17b Point people to ConstantExpr and ConstantFolding, 
in case they get the wrong idea.  Fit in 80 columns.

llvm-svn: 54676
 2008-08-12 09:43:15 +00:00
Devang Patel
670f3a9e03 Use DenseMap to keep track of last users. 
Use inversed map for faster queries.

llvm-svn: 54662
 2008-08-12 00:26:16 +00:00
Dale Johannesen
718fcee02d Some fixes for x86-64 JIT. Make it use small code 
model, except for external calls; this makes
addressing modes PC-relative.  Incomplete.

The assertion at the top of Emitter::runOnMachineFunction
was obviously bogus (always true) so I removed it.
If someone knows what the correct test should be to cover
all the various targets, please fix.

llvm-svn: 54656
 2008-08-11 23:46:25 +00:00
Chris Lattner
0e03352a9f add a helper method to sys::Path for clang, patch by 
Kovarththanan Rajaratnam!

llvm-svn: 54655
 2008-08-11 23:39:47 +00:00
Chris Lattner
ae09ade343 Implement support for simplifying vector comparisons by 0.0 and 1.0 like we 
do for scalars.  Patch contributed by Nicolas Capens

This also generalizes the previous xforms to work on long double, now that 
isExactlyValue works for long double.

llvm-svn: 54653
 2008-08-11 22:06:05 +00:00
Devang Patel
404762f720 Keep track of analysis usage information for passes. Avoid invoking 
getAnalysisUsage() repeatedly.

llvm-svn: 54650
 2008-08-11 21:13:39 +00:00
Dan Gohman
6789ef32d7 Improve the grep commands for this test to be tolerant of ABI 
differences, and to be more specific.

llvm-svn: 54648
 2008-08-11 20:10:41 +00:00
Dan Gohman
a27ed39f05 Take the FrameOffset into account when computing the alignment 
of stack objects. This fixes PR2656.

llvm-svn: 54646
 2008-08-11 18:27:03 +00:00
Nate Begeman
9be47adde4 Implement ISD::TRAP support on PPC 
llvm-svn: 54644
 2008-08-11 17:36:31 +00:00
Duncan Sands
cac74d2a10 Make it possible to use different constant 
folding policies with IRBuilder.  The default,
provided by ConstantFolder, is to do minimal
folding like now: what ConstantExpr provides.
An alternative is to use TargetFolder, which
uses target information to fold constants more.

llvm-svn: 54640
 2008-08-11 15:29:30 +00:00