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Author SHA1 Message Date
Owen Anderson
b2ec2956f5 Add a test for performing GVNPRE on select instructions. 
llvm-svn: 37782
 2007-06-28 23:50:31 +00:00
Dan Gohman
c6bdcfa8c0 Add new TargetLowering code to provide the final register type that an 
illegal value type will be transformed to, for code that needs the
register type after all transformations instead of just after the first
transformation.

Factor out the code that uses this information to do copy-from-regs and
copy-to-regs for various purposes into separate functions so that they
are done consistently.

llvm-svn: 37781
 2007-06-28 23:29:44 +00:00
Devang Patel
9eeed9a5bd Fix PR 1526. 
llvm-svn: 37780
 2007-06-28 23:09:25 +00:00
Dan Gohman
d2a3725004 Add a default parameter to a SmallVector constructor to allow it to 
be called with just an initial length value, just like in std::vector.

llvm-svn: 37779
 2007-06-28 20:27:24 +00:00
Lauro Ramos Venancio
04172124dd Fix a bug in my previous patch. 
llvm-svn: 37778
 2007-06-28 20:06:38 +00:00
David Greene
370ff247c8 Add support for building with _GLIBCXX_DEBUG. New configure option 
--enable-expensive-checks allows the developer to enable runtime
checking that can greatly increase compile time.  Currently it only
turns on _GLIBCXX_DEBUG.  Other expensive debugging checks added later
should be controlled by this configure option.

This patch also updates llvm-config with a --cppflags option to inform
llvm-gcc how to build itself so that it is compatible with an llvm that
was built with _GLIBCXX_DEBUG.

llvm-svn: 37777
 2007-06-28 19:36:08 +00:00
Lauro Ramos Venancio
eb29d717b3 When linking two modules, we should copy the alias. 
llvm-svn: 37776
 2007-06-28 19:02:54 +00:00
Devang Patel
2f757c3a96 Remove unnecessary comments. 
llvm-svn: 37774
 2007-06-28 02:11:54 +00:00
Devang Patel
ce4ea8a62c Handle the case when block dominates itself. 
llvm-svn: 37773
 2007-06-28 02:07:08 +00:00
Devang Patel
03d844eebd - Undo previous check and allow loop switch for condtion that is not inside 
loop.
- Avoid loop unswich for loop header branch.
- While cloning dominators fix typo and handle self dominating blocks.

llvm-svn: 37772
 2007-06-28 02:05:46 +00:00
Devang Patel
7f468af921 Update LoopUnswitch pass to preserve DomiantorTree. 
llvm-svn: 37771
 2007-06-28 00:49:00 +00:00
Devang Patel
50d5420cdc If a condition is not inside a loop then the condition is suitable 
to loop unswitch candidate for the loop.

llvm-svn: 37770
 2007-06-28 00:44:10 +00:00
Owen Anderson
9372f36b3c Make many sets a much more reasonable size. This decreases the time to optimize 
Anton's testcase from 35.5s to 34.7s.

llvm-svn: 37769
 2007-06-28 00:34:34 +00:00
Bill Wendling
cc1f4cafa2 Set implied features based upon the CPU's feature list. 
llvm-svn: 37768
 2007-06-27 23:34:06 +00:00
Devang Patel
0fb99e08a9 Update. Now, -etforest is an invalid option. 
llvm-svn: 37767
 2007-06-27 22:58:12 +00:00
Lauro Ramos Venancio
aed8d1f617 llvm-nm must print the alias symbols. 
llvm-svn: 37766
 2007-06-27 22:08:09 +00:00
Devang Patel
28d2851f39 Remove ETForest. 
llvm-svn: 37765
 2007-06-27 20:53:52 +00:00
Evan Cheng
e67385d712 If a livein is not used in the block. It's live through. 
llvm-svn: 37764
 2007-06-27 18:47:28 +00:00
Evan Cheng
26542e347a Partial fix for PR1502: If a EH register is needed in a successor of landing pad, add it as livein to all the blocks in the paths between the landing pad and the specified block. 
llvm-svn: 37763
 2007-06-27 18:45:32 +00:00
Owen Anderson
97dd99d761 Use cached information that has already been computed to make clean() simpler and faster. This is a small speedup on most cases. 
llvm-svn: 37761
 2007-06-27 17:38:29 +00:00
Evan Cheng
c8b17dd965 One additional field in TargetRegisterDesc. 
llvm-svn: 37760
 2007-06-27 17:09:34 +00:00
Owen Anderson
a7927caa56 Fold a lot of code into two cases: binary instructions and ternary instructions. 
This saves many lines of code duplication.  No functionality change.

llvm-svn: 37759
 2007-06-27 17:03:03 +00:00
Dan Gohman
cb89e19a6d Rename ("shrinkify") MVT::isExtendedValueType to MVT::isExtendedVT. 
llvm-svn: 37758
 2007-06-27 16:08:04 +00:00
Dan Gohman
63c5bb770c Document the encoding of MVT::ValueType. 
llvm-svn: 37757
 2007-06-27 15:28:26 +00:00
Dan Gohman
ce1bca0bf9 Remove a redundant newline in the asm output for ELF .rodata sections. 
llvm-svn: 37756
 2007-06-27 15:09:47 +00:00
Dan Gohman
c1c4b0972f Use getVectorTypeBreakdown in FunctionLoweringInfo::CreateRegForValue 
to compute the number and type of registers needed for vector values
instead of computing it manually. This fixes PR1529.

llvm-svn: 37755
 2007-06-27 14:34:07 +00:00
Dan Gohman
e94ef99437 Allow DOUT to be used outside of the llvm namespace. 
llvm-svn: 37753
 2007-06-27 14:09:38 +00:00
Dan Gohman
69a6154359 Make the comment for ScalarizeVectorOp mention that it is only for use 
with single-element vectors.

llvm-svn: 37752
 2007-06-27 14:06:22 +00:00
Zhou Sheng
011fc80616 Fix a bug. 
llvm-svn: 37751
 2007-06-27 09:50:26 +00:00
Duraid Madina
d32d8b9726 ok, this is something of a dirty hack, but it seems to work. (fixes e.g. 
the SPASS miscompilation)

llvm-svn: 37750
 2007-06-27 09:01:14 +00:00
Duraid Madina
73b0d188c8 ok, this much doesn't seem to bork anything 
llvm-svn: 37749
 2007-06-27 08:31:07 +00:00
Duraid Madina
94cd67290b revert evan's fixes (and my doofusness) since they had a huge code 
quality hit. will look at this soon.

llvm-svn: 37748
 2007-06-27 08:11:59 +00:00
Duraid Madina
c0d3c96333 pull evan's fixes - should help the nightly tester (but there are still 
some issues)

llvm-svn: 37747
 2007-06-27 07:07:13 +00:00
Evan Cheng
480cd89fa1 Replace std::set with SmallPtrSet. 
llvm-svn: 37746
 2007-06-27 05:23:00 +00:00
Owen Anderson
97de56ae2b Add support for performing GVNPRE on the three vector-specific operations. 
llvm-svn: 37745
 2007-06-27 04:10:46 +00:00
Owen Anderson
0217ca66eb Add tests for performing GVNPRE on the three vector-specific instructions. 
llvm-svn: 37744
 2007-06-27 04:06:32 +00:00
Evan Cheng
f74e333161 Fix an obvious bug. Old code only worked for the entry block. 
llvm-svn: 37743
 2007-06-27 01:16:36 +00:00
Owen Anderson
dc1d567274 1. Correct some comments and clean up some dead code. 
2. When calculating ANTIC_IN, only iterate the changed blocks.  For most average
inputs this is a small speedup, but for cases with unusual CFGs, this can be a significant win.

llvm-svn: 37742
 2007-06-26 23:29:41 +00:00
Evan Cheng
30adb50aaf Add comment. 
llvm-svn: 37741
 2007-06-26 21:19:07 +00:00
Evan Cheng
5c0f03bce4 Correctly handle implcit def / use operands. 
llvm-svn: 37740
 2007-06-26 21:05:13 +00:00
Evan Cheng
0eaa723739 Properly handle kills of a physical register which has sub-registers that are read by later instructions. 
llvm-svn: 37739
 2007-06-26 21:03:35 +00:00
Evan Cheng
ac10d44736 Add immediate sub-registers. 
llvm-svn: 37738
 2007-06-26 20:59:16 +00:00
Evan Cheng
5506831e5b Silence a warning. 
llvm-svn: 37737
 2007-06-26 18:31:22 +00:00
Reid Spencer
fee7d394f7 Update for Subversion conversion: 
1. Fix comments for -usesvn and -svnurl options.
2. Fix default URL for SVN access.
3. Fix paths to accommodate "trunk" when checking out from SVN.

llvm-svn: 37736
 2007-06-26 17:08:16 +00:00
Dan Gohman
eea90f90af Replace ?: with if statements, for clarity. 
llvm-svn: 37735
 2007-06-26 16:19:08 +00:00
Dan Gohman
99878e810a Simplify the expression for MVT::isExtendedValueType. 
llvm-svn: 37733
 2007-06-26 15:20:04 +00:00
Dan Gohman
fb8c9beba3 Simplify the expression for TargetLowering::isTypeLegal. 
llvm-svn: 37732
 2007-06-26 15:16:27 +00:00
Dan Gohman
94432fe813 Use utostr from StringExtras.h instead of ostringstream from <sstream>. 
llvm-svn: 37731
 2007-06-26 15:14:48 +00:00
Dan Gohman
2fa6ce1cd4 Renumber the SimpleValueType values to fill in the hole left by 
removing MVT::Vector.

llvm-svn: 37730
 2007-06-26 14:28:59 +00:00
Dan Gohman
9cbc3fb1ab Revert the earlier change that removed the M_REMATERIALIZABLE machine 
instruction flag, and use the flag along with a virtual member function
hook for targets to override if there are instructions that are only
trivially rematerializable with specific operands (i.e. constant pool
loads).

llvm-svn: 37728
 2007-06-26 00:48:07 +00:00