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Author SHA1 Message Date
Bob Wilson
b75225556d Fix BuildVectorSDNode::isConstantSplat to handle one-element vectors. 
It is an error to call APInt::zext with a size that is equal to the value's
current size, so use zextOrTrunc instead.

llvm-svn: 66039
 2009-03-04 17:47:01 +00:00
Mike Stump
979a5ea539 .emacs file bits for automatically setting the llvm.org coding style. Thanks Anton. 
llvm-svn: 66032
 2009-03-04 14:14:37 +00:00
Owen Anderson
fb7f64ea0d Add a restore folder, which shaves a dozen or so machineinstrs off oggenc. Update a testcase to check this. 
llvm-svn: 66029
 2009-03-04 08:52:31 +00:00
Gabor Greif
f8d2f7429d "Ghostify" embedded sentinels. This is a real win in all cases 
because less bytes are allocated and subobject construction is gone.
For reference how it works, see BasicBlock.h.
Btw. it is very assuring to see that somebody has invented
this ilist-embedded sentinel technique before me :-)

llvm-svn: 66026
 2009-03-04 06:57:48 +00:00
Evan Cheng
7d9019d0f3 Fix PR3666: isel calls to constant addresses. 
llvm-svn: 66024
 2009-03-04 06:48:53 +00:00
Eli Friedman
1bed40b86a PR3686: make the legalizer handle bitcast from i80 to x86 long double. 
llvm-svn: 66021
 2009-03-04 06:23:34 +00:00
Dan Gohman
6831e2c2a6 Revert r66004 for now; it's causing a variety of test failures. 
llvm-svn: 66008
 2009-03-04 03:54:19 +00:00
Evan Cheng
32eef2f73f Rename test. 
llvm-svn: 66006
 2009-03-04 02:47:25 +00:00
Dan Gohman
c6c669cc1e Teach the x86 backend to eliminate "test" instructions by using the EFLAGS 
result from add, sub, inc, and dec instructions in simple cases.

llvm-svn: 66004
 2009-03-04 02:33:24 +00:00
Dale Johannesen
8ca4d24371 Revert unintended commmit. 
llvm-svn: 66001
 2009-03-04 02:09:48 +00:00
Dale Johannesen
c6bfdb8253 Skip ptr-to-ptr bitcasts when counting in another case. 
llvm-svn: 66000
 2009-03-04 02:06:53 +00:00
Dale Johannesen
e184480072 Always skip ptr-to-ptr bitcasts when counting, 
per Chris' suggestion.  Slightly faster.

llvm-svn: 65999
 2009-03-04 01:53:05 +00:00
Evan Cheng
db402a7a49 Fix PR3701. 1. X86 target renamed eflags register to flags. This matches what llvm-gcc generates so codegen knows flags register is being clobbered by inline asm. 2. BURR scheduler should also check if inline asm nodes can clobber "live" physical registers. Previously it was only checking target nodes with implicit defs. 
llvm-svn: 65996
 2009-03-04 01:41:49 +00:00
Devang Patel
94ef615585 If a global constant is dead then global's debug info should not prevent the optimizer in deleting the global. And while deleting global, delete global's debug info also. 
llvm-svn: 65994
 2009-03-04 01:22:23 +00:00
Dale Johannesen
a6f7a45366 Make my earlier patch to skip debug intrinsics 
when counting work; it was only off by 1.

llvm-svn: 65993
 2009-03-04 01:20:34 +00:00
Dale Johannesen
b26bc461f0 Temporarily revert 65975, which breaks the llvm-gcc build. 
While the patch is clearly correct in itself, it's become
apparent other places are assuming debug intrinsics are
marked as touching memory...this needs more testing.

llvm-svn: 65992
 2009-03-04 01:14:28 +00:00
Bill Wendling
93eeea0493 The DAG combiner was performing a BT combine. The BT combine had a value of -1, 
so it changed it into a 31 via the TLO.ShrinkDemandedConstant() call. Then it
would go through the DAG combiner again. This time it had a value of 31, which
was turned into a -1 by TLI.SimplifyDemandedBits(). This would ping pong
forever.

Teach the TLO.ShrinkDemandedConstant() call not to lower a value if the demanded
value is an XOR of all ones.

llvm-svn: 65985
 2009-03-04 00:18:06 +00:00
Dale Johannesen
e611f70764 Marking debug info intrinsics as not touching memory 
caused them to be considered trivially dead.  Fix this.

llvm-svn: 65979
 2009-03-03 23:30:00 +00:00
Dale Johannesen
81b6cd8ce5 Instruction counters must skip the bitcasts that 
feed into llvm.dbg.declare nodes, as well as
the debug directives themselves.

llvm-svn: 65976
 2009-03-03 22:36:47 +00:00
Devang Patel
dd0b382f55 Dbg Intrinsics do not access memory. 
llvm-svn: 65975
 2009-03-03 22:33:54 +00:00
Devang Patel
9b7c78086b Recursively remove dead argument while removing llvm.dbg.declare intrinsic. 
llvm-svn: 65971
 2009-03-03 21:31:02 +00:00
Dale Johannesen
ceed180d4c When removing a store to an alloca that has only one 
use, check also for the case where it has two uses,
the other being a llvm.dbg.declare.  This is needed so
debug info doesn't affect codegen.

llvm-svn: 65970
 2009-03-03 21:26:39 +00:00
Chris Lattner
db4a8af064 don't #include a header into the middle of an anon namespace. 
llvm-svn: 65967
 2009-03-03 20:10:23 +00:00
Dan Gohman
3c6c7754b2 Add '(implicit EFLAGS)' for AND, OR, XOR, NEG, INC, and DEC 
instructions. These aren't used yet.

llvm-svn: 65965
 2009-03-03 19:53:46 +00:00
Bob Wilson
17cf012d93 Use early exit to reduce indentation. No functional change. 
llvm-svn: 65962
 2009-03-03 19:26:27 +00:00
Bill Wendling
7fdda71ad7 Remove accidental check-ins in r65960. :-( 
llvm-svn: 65961
 2009-03-03 19:25:16 +00:00
Bill Wendling
8244b700bf Use > instead of >=. We want to promote aggregates of 128-bytes. 
llvm-svn: 65960
 2009-03-03 19:18:49 +00:00
Dan Gohman
cf43db79cc Make a comment less terse. 
llvm-svn: 65953
 2009-03-03 17:44:54 +00:00
Bill Wendling
a77bedb70b Reapply r65755, but reversing "<" to ">=". 
llvm-svn: 65945
 2009-03-03 12:12:58 +00:00
Mikhail Glushenkov
06f114ba92 Add example/Skeleton. 
This is a template that can be used to build your own LLVMC-based drivers.
It can be also useful as a "bare-bones" LLVMC.

llvm-svn: 65944
 2009-03-03 11:02:48 +00:00
Mikhail Glushenkov
1777b8c113 Comment fixes. 
llvm-svn: 65943
 2009-03-03 10:04:57 +00:00
Mikhail Glushenkov
a4a724f737 Oops. 
llvm-svn: 65942
 2009-03-03 10:04:23 +00:00
Mikhail Glushenkov
86e63a12c5 Use LLVMLIBS instead of USEDLIBS. 
Since this Makefile is supposed to be usable from LLVM-based projects not in the
tree, LLVMLIBS should be used instead of USEDLIBS. This depends on my previous
fix to Makefile.rules.

llvm-svn: 65941
 2009-03-03 10:03:53 +00:00
Mikhail Glushenkov
d6a332110e LINK_COMPONENTS should be added to LLVMLibsOptions. 
From the code: "There are "Proj" libs (defined by the user's project) and "LLVM"
libs (defined by the LLVM project)." LINK_COMPONENTS are clearly defined by the
LLVM project.

Additionally, this fixes an issue with llvmc's build process:-)

llvm-svn: 65940
 2009-03-03 10:03:27 +00:00
Mikhail Glushenkov
96788a19b6 Move example plugins to the example/ directory. 
llvm-svn: 65939
 2009-03-03 10:02:53 +00:00
Nick Lewycky
b7302132ac ENABLE_PIC is either 0 or 1, but is always defined. 
llvm-svn: 65938
 2009-03-03 07:45:09 +00:00
Mikhail Glushenkov
1d23d4e16b 80-column violation + trailing whitespace. 
llvm-svn: 65936
 2009-03-03 07:22:23 +00:00
Zhou Sheng
1e7e86fec4 Ignore the debug info intrinsics when adding instructions into alias sets. 
llvm-svn: 65934
 2009-03-03 06:02:04 +00:00
Nick Lewycky
b1866d3036 This bug's been fixed but a version with the fix hasn't been released yet. 
llvm-svn: 65931
 2009-03-03 05:41:16 +00:00
Nick Lewycky
9d66b5883e Regenerate. 
llvm-svn: 65928
 2009-03-03 04:55:29 +00:00
Nick Lewycky
28f2571059 Switch to using -Wl,-R on Solaris. 
llvm-svn: 65927
 2009-03-03 04:55:15 +00:00
Nick Lewycky
16799e4e7c Fix build on Cygwin. 
llvm-svn: 65922
 2009-03-03 03:36:50 +00:00
Dan Gohman
51d4e8db6a Fix a bunch of Doxygen syntax issues. Escape special characters, 
and put @file directives on their own comment line.

llvm-svn: 65920
 2009-03-03 02:55:14 +00:00
Dale Johannesen
d4a205b300 Don't count DebugInfo instructions in another limit 
(lest they affect codegen).

llvm-svn: 65915
 2009-03-03 01:43:03 +00:00
Dale Johannesen
04fe3500c1 Testcase for line number sinking in InstCombine. 
llvm-svn: 65911
 2009-03-03 01:10:01 +00:00
Dale Johannesen
33fa9dc8a9 When sinking an insn in InstCombine bring its debug 
info with it.
Don't count debug info insns against the scan maximum
in FindAvailableLoadedValue (lest they affect codegen).

llvm-svn: 65910
 2009-03-03 01:09:07 +00:00
Devang Patel
b69b449ce8 Ignore debug info intrinsics. 
llvm-svn: 65908
 2009-03-03 00:28:44 +00:00
Devang Patel
e98e6bc27c If branch conditions' one successor is dominating another non-latch successor then this loop's iteration space can not be restricted. In this example block bb5 is always executed. 
llvm-svn: 65902
 2009-03-02 23:39:14 +00:00
Bob Wilson
5b276b6bc9 Generalize BuildVectorSDNode::isConstantSplat to use APInts and handle 
arbitrary vector sizes.  Add an optional MinSplatBits parameter to specify
a minimum for the splat element size.  Update the PPC target to use the
revised interface.

llvm-svn: 65899
 2009-03-02 23:24:16 +00:00
Bill Wendling
1063de1ee0 Document the -gcc-tool-args bugpoint option. 
llvm-svn: 65897
 2009-03-02 23:15:59 +00:00