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40590 Commits

Author SHA1 Message Date
Dale Johannesen 2aea794226 New test, see comments. 
llvm-svn: 47078
 2008-02-13 18:36:48 +00:00
Ted Kremenek cd44b12f96 Fixed 80 col violations. 
llvm-svn: 47076
 2008-02-13 18:06:44 +00:00
Duncan Sands f8d29f228d Teach LegalizeTypes how to expand and promote CTLZ, 
CTTZ and CTPOP.  The expansion code differs from
that in LegalizeDAG in that it chooses to take the
CTLZ/CTTZ count from the Hi/Lo part depending on
whether the Hi/Lo value is zero, not on whether
CTLZ/CTTZ of Hi/Lo returned 32 (or whatever the
width of the type is) for it.  I made this change
because the optimizers may well know that Hi/Lo
is zero and exploit it.  The promotion code for
CTTZ also differs from that in LegalizeDAG: it
uses an "or" to get the right result when the
original value is zero, rather than using a compare
and select.  This also means the value doesn't
need to be zero extended.

llvm-svn: 47075
 2008-02-13 18:01:53 +00:00
Chris Lattner 7b7ace5537 avoid making implicit casts that just remove typedefs. 
llvm-svn: 47074
 2008-02-13 18:01:07 +00:00
Chris Lattner 419df4e066 gcc 3.2.3 is also bad. 
llvm-svn: 47073
 2008-02-13 17:50:24 +00:00
Ted Kremenek 755d39b233 Unbreak the build. 
llvm-svn: 47072
 2008-02-13 17:45:18 +00:00
Ted Kremenek 1c16527774 Renamed files to match class renaming in r47070: 
http://llvm.org/viewvc/llvm-project?rev=47070&view=rev

llvm-svn: 47071
 2008-02-13 17:43:07 +00:00
Ted Kremenek f6c62f3459 Renamed class GREngine => GRCoreEngine. 
Renamed class GRConstants => GRExprEngine.

This was done with a Perl script, and will result in 80 col. violations that
I will gradually fix up.

llvm-svn: 47070
 2008-02-13 17:41:41 +00:00
Eli Friedman 2be9af9556 Fix a minor bug in isNullPointerConstant triggered by the linux 
tgmath.h.

Note that there is another issue with tgmath.h, so mandel.c still 
doesn't work.

llvm-svn: 47069
 2008-02-13 17:29:58 +00:00
Ted Kremenek 2bba901a36 Simplify GRIndirectGotoNodeBuilder. 
llvm-svn: 47068
 2008-02-13 17:27:37 +00:00
Chris Lattner d973e836f1 Fix the PPC JIT regressions by encoding zeroreg as 0 for BLR. 
llvm-svn: 47067
 2008-02-13 17:24:14 +00:00
Chris Lattner 67b9ef7be8 remove some dead code. 
llvm-svn: 47066
 2008-02-13 17:18:26 +00:00
Devang Patel f64f7fb1b6 Remove use of ltdl 
llvm-svn: 47065
 2008-02-13 17:11:39 +00:00
Ted Kremenek 632bcb82a7 Added GREngine support for "break" and "continue". 
llvm-svn: 47064
 2008-02-13 16:56:51 +00:00
Duncan Sands 235b26f225 Add notes on Ada compilers that can be used for 
the build.  Put all items that the user should
specify in bold.  Make it a debug build.

llvm-svn: 47063
 2008-02-13 16:46:10 +00:00
Wojciech Matyjewicz 0e411f653c Fix typo. Thanks to Duncan for noticing. 
llvm-svn: 47062
 2008-02-13 12:21:32 +00:00
Wojciech Matyjewicz 35545fd84d Add comments as per review feedback. 
llvm-svn: 47061
 2008-02-13 11:51:34 +00:00
Evan Cheng 587c66ed96 Some code clean up. 
llvm-svn: 47060
 2008-02-13 09:56:03 +00:00
Evan Cheng 87f1b39f2b Simplify. 
llvm-svn: 47059
 2008-02-13 09:18:16 +00:00
Evan Cheng dc3f3841fc Simplify. 
llvm-svn: 47058
 2008-02-13 09:13:21 +00:00
Evan Cheng bb4b97f90e Fix a potential serious problem where kills belonging to the val# defined by a two-address instruction is also on the val# that defines the input. 
llvm-svn: 47057
 2008-02-13 09:06:18 +00:00
Evan Cheng 8cc58728a8 * Cannot safely commute an instruction there are other defs which can reach its uses. 
* Ignore copy instructions which have already been coalesced.

llvm-svn: 47056
 2008-02-13 08:41:08 +00:00
Eli Friedman 460648abde Add a note pointing to PR1996. 
llvm-svn: 47055
 2008-02-13 07:56:04 +00:00
Chris Lattner a08af08a88 In SDISel, for targets that support FORMAL_ARGUMENTS nodes, lower this 
node as soon as we create it in SDISel.  Previously we would lower it in
legalize.  The problem with this is that it only exposes the argument
loads implied by FORMAL_ARGUMENTs after legalize, so that only dag combine 2
can hack on them.  This causes us to miss some optimizations because 
datatype expansion also happens here.

Exposing the loads early allows us to do optimizations on them.  For example
we now compile arg-cast.ll to:

_foo:
	movl	$2147483647, %eax
	andl	8(%esp), %eax
	ret

where we previously produced:

_foo:
	subl	$12, %esp
	movsd	16(%esp), %xmm0
	movsd	%xmm0, (%esp)
	movl	$2147483647, %eax
	andl	4(%esp), %eax
	addl	$12, %esp
	ret

It might also make sense to do this for ISD::CALL nodes, which have implicit
stores on many targets.

llvm-svn: 47054
 2008-02-13 07:39:09 +00:00
Chris Lattner f6518cf4ab don't try to avoid inserting loads when lowering FORMAL_ARGUMENTS. 
DAGCombine is now quite good at zapifying them.

llvm-svn: 47053
 2008-02-13 07:35:30 +00:00
Chris Lattner ee322b44a4 teach dag combiner how to eliminate MERGE_VALUES nodes. 
llvm-svn: 47052
 2008-02-13 07:25:05 +00:00
Nate Begeman eea32990a9 readme updates 
llvm-svn: 47051
 2008-02-13 07:06:12 +00:00
Eli Friedman 03ec63f29d Add test for PR1996. (This is my first time adding a test for a 
transform, so please review.)

llvm-svn: 47050
 2008-02-13 06:55:57 +00:00
Nate Begeman fe61967361 Add testcase for recent legalizer change 
llvm-svn: 47049
 2008-02-13 06:48:40 +00:00
Nate Begeman 735ab3ce67 Support legalizing insert_vector_elt on targets where the element 
type is not legal.

llvm-svn: 47048
 2008-02-13 06:43:04 +00:00
Evan Cheng ea8530d82c New tests. 
llvm-svn: 47047
 2008-02-13 03:23:53 +00:00
Evan Cheng 1446726f3e Initial support for copy elimination by commuting its definition MI. 
PR1877.
A3 = op A2 B0<kill>                                                                                                                                                                            
...                                                                                                                                                                                     
B1 = A3      <- this copy                                                                                                                                                                      
...                                                                                                                                                                                          
   = op A3   <- more uses                                                                                                                                                                      
                                                                                                                                                                                                 
==>                                                                                                                                                                                             
                                                                                                                                                                                            
B2 = op B0 A2<kill>                                                                                                                                                                            
...                                                                                                                                                                                          
B1 = B2      <- now an identify copy                                                                                                                                                           
...                                                                                                                                                                                          
   = op B2   <- more uses

This speeds up FreeBench/neural by 29%, Olden/bh by 12%, oopack_v1p8 by 53%.

llvm-svn: 47046
 2008-02-13 03:01:43 +00:00
Nate Begeman 87abe955fc Make register scavenging happy by not using a reg (CR0) that isn't defined 
llvm-svn: 47045
 2008-02-13 02:58:33 +00:00
Evan Cheng 47f462a7ec - Added removeValNo() to remove all live ranges of a particular value#. 
- removeRange() can now update value# information.

llvm-svn: 47044
 2008-02-13 02:48:26 +00:00
Evan Cheng 244183ef0d commuteInstr() can now commute non-ssa machine instrs. 
llvm-svn: 47043
 2008-02-13 02:46:49 +00:00
Evan Cheng 61732d994e Added debugging routine dumpUses. 
llvm-svn: 47042
 2008-02-13 02:45:38 +00:00
Anders Carlsson 73cc507602 Use IgnoreParenCasts. 
llvm-svn: 47041
 2008-02-13 01:22:59 +00:00
Chris Lattner f26609686f Move IgnoreParenCasts to be a method on Expr. 
llvm-svn: 47040
 2008-02-13 01:02:39 +00:00
Dan Gohman f990faf23b Convert SelectionDAG::ComputeMaskedBits to use APInt instead of uint64_t. 
Add an overload that supports the uint64_t interface for use by clients
that haven't been updated yet.

llvm-svn: 47039
 2008-02-13 00:35:47 +00:00
Ted Kremenek 7022efbe7b Added support to GREngine/GRConstants for handling computed gotos. 
llvm-svn: 47038
 2008-02-13 00:24:44 +00:00
Dale Johannesen ffde4ff5b1 __DATA not __DATA__ is the right segment name on darwin. 
Spotted by Nick Kledzik.

llvm-svn: 47037
 2008-02-12 23:35:09 +00:00
Nate Begeman bcc182f50d Remove some dead code 
llvm-svn: 47036
 2008-02-12 22:54:40 +00:00
Nate Begeman 8ef50214f0 SSE4.1 64b integer insert/extract pattern support 
Move formats into the formats file

llvm-svn: 47035
 2008-02-12 22:51:28 +00:00
Ted Kremenek 822f7370b2 Added GREngine support for GotoStmt. 
llvm-svn: 47034
 2008-02-12 21:51:20 +00:00
Dan Gohman 922096cc5e Adjust for the API change to APInt::getBitsSet. 
People more familiar with clang than me, please review this.

llvm-svn: 47033
 2008-02-12 21:49:34 +00:00
Dan Gohman 5b3dffefa2 Change APInt::getBitsSet to accept a "half-open" range, where the 
hiBit parameter marks the index one past the last desired set bit.

llvm-svn: 47032
 2008-02-12 21:47:33 +00:00
Duncan Sands 481d4b27dd Note that these instructions are for x86-32 linux 
(the only platform on which the Ada compiler even
builds).

llvm-svn: 47031
 2008-02-12 21:40:21 +00:00
Ted Kremenek 736e441266 Added transfer function/value track logic for taking the address of a label. 
llvm-svn: 47030
 2008-02-12 21:37:56 +00:00
Ted Kremenek 1f3d4a73f5 Minor (cosmetic) reshuffling of code. Fixed a bug in "Assume" logic when 
handling Non-Lvalues of the type nonlval::SymbolVal; we were accidentally
casting them to lval::SymbolVal.

llvm-svn: 47029
 2008-02-12 21:37:25 +00:00
Duncan Sands 2ae968abcb Add more spacing. 
llvm-svn: 47028
 2008-02-12 21:28:39 +00:00