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Author SHA1 Message Date
Evan Cheng
65df926ced TableGen no longer emit CopyFromReg nodes for implicit results in physical 
registers. The scheduler is now responsible for emitting them.

llvm-svn: 41781
 2007-09-07 23:59:02 +00:00
Bill Wendling
04a6163921 Add missing index versions of instructions to the map. 
llvm-svn: 41776
 2007-09-07 22:01:02 +00:00
Dan Gohman
3bc1bc2590 Avoid storing and reloading zeros and other constants from stack slots 
by flagging the associated instructions as being trivially rematerializable.

llvm-svn: 41775
 2007-09-07 21:32:51 +00:00
Dale Johannesen
783215c630 Apply feedback from previous patch. 
llvm-svn: 41774
 2007-09-07 21:07:57 +00:00
Dale Johannesen
81660f7d7b Revert previous change to IR. 
llvm-svn: 41769
 2007-09-07 18:31:50 +00:00
Rafael Espindola
8c57e70f93 Add support for having different alignment for objects on call frames. 
The x86-64 ABI states that objects passed on the stack have
8 byte alignment. Implement that.

llvm-svn: 41768
 2007-09-07 14:52:14 +00:00
Anton Korobeynikov
899c0c9c8d Split eh.select / eh.typeid.for intrinsics into i32/i64 versions. This is needed, because they just "mark" register 
liveins and we let frontend solve type issue, not lowering code :)

llvm-svn: 41763
 2007-09-07 11:39:35 +00:00
Bill Wendling
538f8f9d7f Test for PR1641. 
llvm-svn: 41762
 2007-09-07 08:30:09 +00:00
Chris Lattner
8e6c39d961 Don't zap back to back volatile load/stores 
llvm-svn: 41759
 2007-09-07 05:33:03 +00:00
Owen Anderson
4b71e55287 Add lengthof and endof templates that hide a lot of sizeof computations. 
Patch by Sterling Stein!

llvm-svn: 41758
 2007-09-07 04:06:50 +00:00
David Greene
04a132ad5f Constify to catch bugs. 
llvm-svn: 41751
 2007-09-06 19:46:46 +00:00
Dale Johannesen
86f367a6b7 Next round of APFloat changes. 
Use APFloat in UpgradeParser and AsmParser.
Change all references to ConstantFP to use the
APFloat interface rather than double.  Remove
the ConstantFP double interfaces.
Use APFloat functions for constant folding arithmetic
and comparisons.
(There are still way too many places APFloat is
just a wrapper around host float/double, but we're
getting there.)

llvm-svn: 41747
 2007-09-06 18:13:44 +00:00
Anton Korobeynikov
0e3789f07a Proper handle case, when aliasee is external weak symbol referenced only by alias itself. 
Also, fix a case, when target doesn't have weak symbols supported.

llvm-svn: 41746
 2007-09-06 17:21:48 +00:00
David Greene
6df3ab79be Add instruction dump output. This helps find bugs. 
llvm-svn: 41744
 2007-09-06 16:36:39 +00:00
David Greene
2ca4b270db Pluggable coalescers inplementation. 
llvm-svn: 41743
 2007-09-06 16:18:45 +00:00
Nick Lewycky
79e179ff1f Use isTrueWhenEqual. Thanks Chris! 
llvm-svn: 41741
 2007-09-06 02:40:25 +00:00
Nick Lewycky
2f66503c0a When the two operands of an icmp are equal, there are five possible predicates 
that would make the icmp true. Fixes PR1637.

llvm-svn: 41740
 2007-09-06 01:10:22 +00:00
Evan Cheng
15c07fb194 Fix a memory leak. 
llvm-svn: 41739
 2007-09-06 01:07:24 +00:00
Evan Cheng
896c1ed385 Fix a bug in X86InstrInfo::convertToThreeAddress that caused it to codegen: 
leal    (,%rcx,8), %rcx
It should be
leal    (,%rcx,8), %ecx

llvm-svn: 41735
 2007-09-06 00:14:41 +00:00
Bill Wendling
46d5fb4e5d LVXL and STVXL are also a load and store resp. 
llvm-svn: 41733
 2007-09-05 23:47:12 +00:00
Evan Cheng
884b7c0c81 Accidentially left this out. 
llvm-svn: 41730
 2007-09-05 21:58:18 +00:00
Evan Cheng
3bda699975 Use pool allocator for all the VNInfo's to improve memory access locality. This reduces coalescing time on siod Mac OS X PPC by 35%. Also remove the back ptr from VNInfo to LiveInterval and other tweaks. 
llvm-svn: 41729
 2007-09-05 21:46:51 +00:00
Evan Cheng
5977c55f5d Added Reset() to free all allocated memory regions and reset state to be the same as right after ctor. 
llvm-svn: 41728
 2007-09-05 21:41:34 +00:00
Evan Cheng
804e104123 Missing break. Patch by Wojciech Matyjewicz. 
llvm-svn: 41727
 2007-09-05 21:36:14 +00:00
Dale Johannesen
1d92d23a89 Fix mod so it actually works. Fix conversions to 
native types to handle denormals correctly.

llvm-svn: 41726
 2007-09-05 20:39:49 +00:00
Chuck Rose III
4f602f5eba Forgot to obey 80 column rule. Fixing that. 
llvm-svn: 41725
 2007-09-05 20:36:41 +00:00
Dale Johannesen
f9ca7b6094 Change all floating constants that are not exactly 
representable to use hex format.

llvm-svn: 41722
 2007-09-05 17:50:36 +00:00
Chuck Rose III
a1061872a7 Added default parameters to GetElementPtrInstr constructor call. Visual Studio 2k5 was getting confused and was unable to compile it. Suspected compiler error. 
llvm-svn: 41721
 2007-09-05 16:54:38 +00:00
Duncan Sands
aefef49052 Due to label merging, the last label for an invoke 
may be the same as the first label for the following
invoke.  Remove a micro-optimization which was wrong
in this case.

llvm-svn: 41720
 2007-09-05 14:12:46 +00:00
Duncan Sands
2e32997f97 Testcases for PR1628. 
llvm-svn: 41719
 2007-09-05 11:53:04 +00:00
Duncan Sands
ab8eb598be Fix PR1628. When exception handling is turned on, 
labels are generated bracketing each call (not just
invokes).  This is used to generate entries in
the exception table required by the C++ personality.
However it gets in the way of tail-merging.  This
patch solves the problem by no longer placing labels
around ordinary calls.  Instead we generate entries
in the exception table that cover every instruction
in the function that wasn't covered by an invoke
range (the range given by the labels around the invoke).
As an optimization, such entries are only generated for
parts of the function that contain a call, since for
the moment those are the only instructions that can
throw an exception [1].  As a happy consequence, we
now get a smaller exception table, since the same
region can cover many calls.  While there, I also
implemented folding of invoke ranges - successive
ranges are merged when safe to do so.  Finally, if
a selector contains only a cleanup, there's a special
shorthand for it - place a 0 in the call-site entry.
I implemented this while there.  As a result, the
exception table output (excluding filters) is now
optimal - it cannot be made smaller [2].  The
problem with throw filters is that folding them
optimally is hard, and the benefit of folding them is
minimal.

[1] I tested that having trapping instructions (eg
divide by zero) in such a region doesn't cause trouble.
[2] It could be made smaller with the help of higher
layers, eg by having branch folding reorder basic blocks
ending in invokes with the same landing pad so they
follow each other.  I don't know if this is worth doing.

llvm-svn: 41718
 2007-09-05 11:27:52 +00:00
Bill Wendling
13549db795 Add the 64-bit versions of the DS* Altivec instructions. 
llvm-svn: 41717
 2007-09-05 04:05:20 +00:00
Devang Patel
db7970eac9 Enable loop index split pass. 
llvm-svn: 41714
 2007-09-04 20:46:58 +00:00
Devang Patel
2cebc6f649 Insert cloned loop basic blocks before original loop header. 
llvm-svn: 41713
 2007-09-04 20:46:35 +00:00
Evan Cheng
bb21883dd3 Fix for PR1632. EHSELECTION always produces a i32 value. 
llvm-svn: 41712
 2007-09-04 20:39:26 +00:00
Evan Cheng
02c6081f2d Fix for PR1613: added 64-bit rotate left PPC instructions and patterns. 
llvm-svn: 41711
 2007-09-04 20:20:29 +00:00
Evan Cheng
0973e15ddd Always check the type of node. This prevents situations such as selecting 32-bit rotate target instruction for a 64-bit node when 64-bit pattern is missing. 
llvm-svn: 41710
 2007-09-04 20:18:28 +00:00
David Greene
34e8027ee3 Update generated files. 
llvm-svn: 41706
 2007-09-04 18:46:50 +00:00
Dale Johannesen
1f864b259a fix reversal bug in preceding checkin 
llvm-svn: 41705
 2007-09-04 17:32:27 +00:00
David Greene
a044948e3b Revert this because the interface hasn't been updated yet. 
llvm-svn: 41703
 2007-09-04 17:15:07 +00:00
David Greene
2c86040fef Fix typo. 
llvm-svn: 41702
 2007-09-04 17:00:44 +00:00
Evan Cheng
4cae11d569 Mac OS X X86-64 ABI is same as the standard. 
llvm-svn: 41700
 2007-09-04 16:44:41 +00:00
David Greene
8cda5af2e7 Update GEP constructors to use an iterator interface to fix 
GLIBCXX_DEBUG issues.

llvm-svn: 41697
 2007-09-04 15:46:09 +00:00
Anton Korobeynikov
cf91be2c79 Reapply r41578 with proper fix 
llvm-svn: 41680
 2007-09-03 00:36:06 +00:00
Anton Korobeynikov
5b49f44609 Silence warning while compiling with gcc 4.2 
llvm-svn: 41676
 2007-09-02 22:11:14 +00:00
Anton Korobeynikov
32567436f8 Emit proper "secrel" directive, where possible. This fixes invalid asm syntax of debug info on mingw32. Also, cleanup 
some stuff.

llvm-svn: 41675
 2007-09-02 22:07:21 +00:00
Evan Cheng
25c46702da More tweaks to improve compile time. 
llvm-svn: 41669
 2007-09-01 02:03:17 +00:00
Evan Cheng
9c7cff8e62 Fix a gcroot lowering bug. 
llvm-svn: 41668
 2007-09-01 02:00:51 +00:00
Dale Johannesen
b336f6207c Oops, should be part of 41664; won't work very well without this piece. 
llvm-svn: 41665
 2007-08-31 23:35:31 +00:00
Dale Johannesen
b34e6b4898 Add mod, copysign, abs operations to APFloat. 
Implement some constant folding in SelectionDAG and
DAGCombiner using APFloat.  Remove double versions
of constructor and getValue from ConstantFPSDNode.

llvm-svn: 41664
 2007-08-31 23:34:27 +00:00