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Author SHA1 Message Date
Gabor Greif
c23b8719ef Give sentinel traits the right to determine the policy where the sentinel is kept. 
This should result in less indirect memory accesses, less dead writes and tighter code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66061 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-04 20:36:44 +00:00
Dan Gohman
076aee32e8 Re-apply 66008, now that the unfoldMemoryOperand bug is fixed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66058 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-04 19:44:21 +00:00
Dan Gohman
fc53fc657e Correct this comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66057 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-04 19:24:25 +00:00
Dan Gohman
b37a8206b6 When using MachineInstr operand indices on SDNodes, the number 
of MachineInstr def operands must be subtracted out. This bug
was uncovered by the recent x86 EFLAGS optimization. Before
that, the only instructions that ever needed unfolding were
things like CMP32rm, where NumDefs is zero.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66056 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-04 19:23:38 +00:00
Chris Lattner
88fe1ad187 complete comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66055 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-04 19:23:25 +00:00
Chris Lattner
0ff83ab985 this wasn't intended to be committed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66054 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-04 19:22:30 +00:00
Chris Lattner
1541e0f7da Fix PR3720 by properly propagating alignment information from memcpy/memmove 
onto element accesses.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66053 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-04 19:20:50 +00:00
Nate Begeman
66941988de Fix a thinko in the JIT where the address of a GV was only recorded in the map 
on failure to resolve it.
Do not abort on failure to resolve an external symbol when using dlsym stubs,
  since the symbol may not be in the JIT's address space.  Just use 0.
Allow dlsym stubs to differentiate between GlobalVars and Functions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66050 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-04 19:10:38 +00:00
Bob Wilson
d344b884dd 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66039 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-04 17:47:01 +00:00
Mike Stump
675e754c61 .emacs file bits for automatically setting the llvm.org coding style. Thanks Anton. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66032 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-04 14:14:37 +00:00
Owen Anderson
c93023a89e Add a restore folder, which shaves a dozen or so machineinstrs off oggenc. Update a testcase to check this. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66029 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-04 08:52:31 +00:00
Gabor Greif
c7f6b8c5d4 "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 :-)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66026 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-04 06:57:48 +00:00
Evan Cheng
ae3f2b6c77 Fix PR3666: isel calls to constant addresses. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66024 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-04 06:48:53 +00:00
Eli Friedman
27759f41ca PR3686: make the legalizer handle bitcast from i80 to x86 long double. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66021 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-04 06:23:34 +00:00
Dan Gohman
29582d1223 Revert r66004 for now; it's causing a variety of test failures. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66008 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-04 03:54:19 +00:00
Evan Cheng
10029df79a Rename test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66006 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-04 02:47:25 +00:00
Dan Gohman
12bbc52aa7 Teach the x86 backend to eliminate "test" instructions by using the EFLAGS 
result from add, sub, inc, and dec instructions in simple cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66004 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-04 02:33:24 +00:00
Dale Johannesen
0744f09efc Revert unintended commmit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66001 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-04 02:09:48 +00:00
Dale Johannesen
d9c05d7711 Skip ptr-to-ptr bitcasts when counting in another case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66000 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-04 02:06:53 +00:00
Dale Johannesen
cdb16aa5ab Always skip ptr-to-ptr bitcasts when counting, 
per Chris' suggestion.  Slightly faster.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65999 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-04 01:53:05 +00:00
Evan Cheng
599a6a88ce 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. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65996 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-04 01:41:49 +00:00
Devang Patel
7f6179d1d8 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. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65994 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-04 01:22:23 +00:00
Dale Johannesen
0d6596b7bf Make my earlier patch to skip debug intrinsics 
when counting work; it was only off by 1.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65993 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-04 01:20:34 +00:00
Dale Johannesen
160ae86936 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65992 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-04 01:14:28 +00:00
Bill Wendling
36ae6c1827 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65985 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-04 00:18:06 +00:00
Dale Johannesen
127a7936de Marking debug info intrinsics as not touching memory 
caused them to be considered trivially dead.  Fix this.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65979 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-03 23:30:00 +00:00
Dale Johannesen
4ded40a44d Instruction counters must skip the bitcasts that 
feed into llvm.dbg.declare nodes, as well as
the debug directives themselves.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65976 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-03 22:36:47 +00:00
Devang Patel
70b5e04d85 Dbg Intrinsics do not access memory. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65975 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-03 22:33:54 +00:00
Devang Patel
9adb01cbc3 Recursively remove dead argument while removing llvm.dbg.declare intrinsic. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65971 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-03 21:31:02 +00:00
Dale Johannesen
4945c65784 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65970 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-03 21:26:39 +00:00
Chris Lattner
44e3dd1672 don't #include a header into the middle of an anon namespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65967 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-03 20:10:23 +00:00
Dan Gohman
09a2609e20 Add '(implicit EFLAGS)' for AND, OR, XOR, NEG, INC, and DEC 
instructions. These aren't used yet.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65965 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-03 19:53:46 +00:00
Bob Wilson
f2950b0051 Use early exit to reduce indentation. No functional change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65962 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-03 19:26:27 +00:00
Bill Wendling
1c85503e38 Remove accidental check-ins in r65960. :-( 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65961 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-03 19:25:16 +00:00
Bill Wendling
3aaf5d9933 Use > instead of >=. We want to promote aggregates of 128-bytes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65960 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-03 19:18:49 +00:00
Dan Gohman
12f7cab423 Make a comment less terse. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65953 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-03 17:44:54 +00:00
Bill Wendling
5a377cb27b Reapply r65755, but reversing "<" to ">=". 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65945 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-03 12:12:58 +00:00
Mikhail Glushenkov
283bb58332 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65944 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-03 11:02:48 +00:00
Mikhail Glushenkov
03c050f018 Comment fixes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65943 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-03 10:04:57 +00:00
Mikhail Glushenkov
c834bbf558 Oops. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65942 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-03 10:04:23 +00:00
Mikhail Glushenkov
cfa036b8f0 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65941 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-03 10:03:53 +00:00
Mikhail Glushenkov
533384eebd 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:-)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65940 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-03 10:03:27 +00:00
Mikhail Glushenkov
178b00ce50 Move example plugins to the example/ directory. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65939 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-03 10:02:53 +00:00
Nick Lewycky
e9742d2f6c ENABLE_PIC is either 0 or 1, but is always defined. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65938 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-03 07:45:09 +00:00
Mikhail Glushenkov
eba2cb0d5a 80-column violation + trailing whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65936 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-03 07:22:23 +00:00
Zhou Sheng
7e4286eb7c Ignore the debug info intrinsics when adding instructions into alias sets. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65934 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-03 06:02:04 +00:00
Nick Lewycky
bb2b521f81 This bug's been fixed but a version with the fix hasn't been released yet. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65931 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-03 05:41:16 +00:00
Nick Lewycky
e9821dcac9 Regenerate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65928 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-03 04:55:29 +00:00
Nick Lewycky
1dace48f53 Switch to using -Wl,-R on Solaris. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65927 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-03 04:55:15 +00:00
Nick Lewycky
1c08c0e128 Fix build on Cygwin. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65922 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-03 03:36:50 +00:00