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Author SHA1 Message Date
Rafael Espindola
4b0d25a0db Correctly handle weak undefined symbols. Before we would get a invalid binding 
(2 == STB_WEAK | STB_GLOBAL).

llvm-svn: 114690
 2010-09-23 19:55:14 +00:00
Jim Grosbach
15096f056a never mind. I can't read, apparently 
llvm-svn: 114689
 2010-09-23 19:42:17 +00:00
Evan Cheng
57ed0f6439 Fix r114632. Return if the only terminator is an unconditional branch after the redundant ones are deleted. 
llvm-svn: 114688
 2010-09-23 19:42:03 +00:00
Jim Grosbach
a6816c40db Fix opcode value for the 'trap' instruction, keeping the type suffix on the 
constant. Hopefully the non-Darwin bots will like it...

llvm-svn: 114687
 2010-09-23 19:32:40 +00:00
Jim Grosbach
a21f51b48f explicit 'unsigned long' on constant value. Hopefully make bots happier. 
llvm-svn: 114686
 2010-09-23 19:08:04 +00:00
Benjamin Kramer
09fb37512b Unbreak build. Jim, please review. 
llvm-svn: 114684
 2010-09-23 18:57:26 +00:00
Evan Cheng
d24bf49867 Revert 114634 for now since buildbot claim it broke Clang self-hosting. I doubt it but it's possible it's exposing another bug somewhere. 
llvm-svn: 114681
 2010-09-23 18:32:19 +00:00
Jim Grosbach
ed295d62f5 trailing whitespace 
llvm-svn: 114680
 2010-09-23 18:07:04 +00:00
Jim Grosbach
bcafcce601 Clean up the 'trap' instruction printing a bit. Non-Darwin assemblers don't 
(yet) recognize the 'trap' mnemonic, so we use .short/.long to emit the
opcode directly. On Darwin, however, we do want the mnemonic for more
readable assembly code and better disassembly.

Adjust the .td file to use the 'trap' mnemonic and handle using the binutils
workaround in the assembly printer. Also tweak the formatting of the opcode
values to make them consistent between the MC printer and the old printer.

llvm-svn: 114679
 2010-09-23 18:05:37 +00:00
Rafael Espindola
44da043992 Correctly compute the offset of the symbol. Forgot these bits from the 
last commit.

llvm-svn: 114678
 2010-09-23 18:01:31 +00:00
Jim Grosbach
2ae71e0880 nuke unused var 
llvm-svn: 114676
 2010-09-23 17:58:00 +00:00
Chris Lattner
efdfb58d99 rewrite the copyright section to match reality: llvm does't have a 
copyright assignment process.

llvm-svn: 114673
 2010-09-23 17:37:11 +00:00
Chris Lattner
2fb18abd7f add lldb and libc++ code owners. 
llvm-svn: 114669
 2010-09-23 17:27:54 +00:00
Rafael Espindola
ce04ba0f70 Represent relocations against local symbols as relocations against the section 
they are in. Both ways should be equivalent, but gas produces relocations
against the section.

Roman wrote the patch, I added the test.

llvm-svn: 114667
 2010-09-23 17:25:18 +00:00
Bob Wilson
0fdee121f7 Fix llvm-extract so that it changes the linkage of all GlobalValues to 
"external" even when doing lazy bitcode loading.  This was broken because
a function that is not materialized fails the !isDeclaration() test.

llvm-svn: 114666
 2010-09-23 17:25:06 +00:00
Oscar Fuentes
095c140c09 Avoid warnings about conversions to `bool' in MS compilers. 
Patch by Nathan Jeffords!

llvm-svn: 114662
 2010-09-23 16:59:44 +00:00
Oscar Fuentes
b58181793d Fix VS 2010 build. 
Patch by Nathan Jeffords!

llvm-svn: 114661
 2010-09-23 16:59:36 +00:00
Nate Begeman
6af7c7163f Revert r114596, it's breaking a few tests. 
llvm-svn: 114659
 2010-09-23 16:49:17 +00:00
Douglas Gregor
51d3d883cb Bump LLVM in CMake makefiles to 2.9 
llvm-svn: 114640
 2010-09-23 14:19:21 +00:00
Rafael Espindola
4f8e36e163 Fix the FIXME. 
llvm-svn: 114639
 2010-09-23 14:14:56 +00:00
Evan Cheng
8266c28b96 Follow up to r114630. Do not optimize away unconditional branch following a conditional one. 
llvm-svn: 114634
 2010-09-23 07:18:35 +00:00
Evan Cheng
1493b1799e Disable codegen prepare critical edge splitting. Machine instruction passes now 
break critical edges on demand.

llvm-svn: 114633
 2010-09-23 06:55:34 +00:00
Evan Cheng
ef7b4a9bd4 If there are multiple unconditional branches terminating a block, eliminate all 
but the first one. Those will never be executed. There was logic to do this
but it was faulty.

llvm-svn: 114632
 2010-09-23 06:54:40 +00:00
Evan Cheng
4d7157b246 Don't sink insert_subreg, subreg_to_reg, reg_sequence. They are meant to be 
close to their sources to facilitate coalescing.

llvm-svn: 114631
 2010-09-23 06:53:00 +00:00
Evan Cheng
3866797d9a SDISel should not optimize a unconditional branch following a conditional branch 
when the unconditional branch destination is the fallthrough block. The
canonicalization makes it easier to allow optimizations on DAGs to invert
conditional branches. The branch folding pass (and AnalyzeBranch) will clean up
the unnecessary unconditional branches later.

This is one of the patches leading up to disabling codegen prepare critical edge
splitting.

llvm-svn: 114630
 2010-09-23 06:51:55 +00:00
Lang Hames
f670bff621 Moved the PBQP allocator class out of the header and back in to the cpp file to hide the gory details. 
Allocator instances can now be created by calling createPBQPRegisterAllocator.

Tidied up use of CoalescerPair as per Jakob's suggestions.

Made the new PBQPBuilder based construction process the default. The internal construction process
remains in-place and available via -pbqp-builder=false for now. It will be removed shortly if the new
process doesn't cause any regressions.

llvm-svn: 114626
 2010-09-23 04:28:54 +00:00
Sean Callanan
389f8119e1 Fixed a crash in the enhanced disassembler where 
because of the lack of a newline, AsmToken::Eof
was being found instead of AsmToken::EndOfStatement.

llvm-svn: 114621
 2010-09-23 02:14:12 +00:00
Dan Gohman
007957687e Fix llvm-extract -delete's lazy loading to materialize the functions that 
will not be deleted, rather than the ones that will.

llvm-svn: 114614
 2010-09-23 00:33:13 +00:00
Jim Grosbach
d8735f1db1 Add support for ELF PLT references for ARM MC asm printing. Adding a 
new VariantKind to the MCSymbolExpr seems like overkill, but I'm not sure
there's a more straightforward way to get the printing difference captured.
(i.e., x86 uses @PLT, ARM uses (PLT)).

llvm-svn: 114613
 2010-09-22 23:27:36 +00:00
Dan Gohman
d299070514 Make SetVector's remove indicate whether it actually removed something. 
llvm-svn: 114612
 2010-09-22 23:20:04 +00:00
Jim Grosbach
bfcaec30d6 Enable a few additional asserts in MC instruction lowering. 
llvm-svn: 114601
 2010-09-22 23:01:28 +00:00
Owen Anderson
7d6373ea9d A select between a constant and zero, when fed by a bit test, can be efficiently 
lowered using a series of shifts.
Fixes <rdar://problem/8285015>.

llvm-svn: 114599
 2010-09-22 22:58:22 +00:00
Cameron Esfahani
662193bddc Fix PR8201: Update the code to call via X86::CALL64pcrel32 in the 64-bit case. 
llvm-svn: 114597
 2010-09-22 22:35:21 +00:00
Nate Begeman
98c68ffb0c <rdar://problem/8228022> Wvector-conversions warnings in arm_neon.h 
Explicitly cast arguments to the type the builtin expects, which is <vN x i8>

llvm-svn: 114596
 2010-09-22 22:28:42 +00:00
Bob Wilson
0f341d4792 Change VDUPLANE DAG combiner to just return the result instead of calling 
CombineTo to avoid putting the result on the worklist.  I don't think it makes
much difference for now, but it might help someday as we add more DAG
combine optimizations.

llvm-svn: 114595
 2010-09-22 22:27:30 +00:00
Rafael Espindola
3cfff6e0c5 Avoid some Mach-O specific alignment being done on ELF. 
llvm-svn: 114594
 2010-09-22 22:27:05 +00:00
Chris Lattner
04d9e1641f allow target-specific label suffixes, patch by Yuri Gribov! 
llvm-svn: 114592
 2010-09-22 22:19:53 +00:00
Dan Gohman
3ae6b70330 Fix uninitialized TBAAFlag field values. 
llvm-svn: 114591
 2010-09-22 22:18:07 +00:00
Bob Wilson
11b219e461 Combine both VMOVDRR(VMOVRRD) and VMOVRRD(VMOVDRR), instead of just doing one 
of those.  Refactor to share code for handling BUILD_VECTOR(VMOVRRD).
I don't have a testcase that exercises this, but it seems like an obvious
good thing to do.

llvm-svn: 114589
 2010-09-22 22:09:21 +00:00
Dan Gohman
d69790d841 Teach memdep about TBAA tags. 
llvm-svn: 114588
 2010-09-22 21:41:02 +00:00
Devang Patel
8914755c40 Use DW_OP_fbreg when offset is based on frame register. 
llvm-svn: 114585
 2010-09-22 21:10:38 +00:00
Jim Grosbach
9764011905 add FIXME 
llvm-svn: 114578
 2010-09-22 20:55:15 +00:00
Eric Christopher
84827bd9f5 Temporarily work around new address lowering while I figure out what 
needs to happen for darwin.

llvm-svn: 114577
 2010-09-22 20:42:08 +00:00
Jim Grosbach
27513b8b9b Remove a few commented out bits 
llvm-svn: 114576
 2010-09-22 20:32:34 +00:00
Dan Gohman
879cf5573e Constify. 
llvm-svn: 114574
 2010-09-22 20:11:43 +00:00
Rafael Espindola
ef6cf9dce9 Fix typo and add a FIXME. 
llvm-svn: 114570
 2010-09-22 19:04:41 +00:00
Bob Wilson
fbec6680d1 When moving zext/sext to be folded with a load, ignore the issue of whether 
truncates are free only in the case where the extended type is legal but the
load type is not.  If both types are illegal, such as when they are too big,
the load may not be legalized into an extended load.

llvm-svn: 114568
 2010-09-22 18:44:56 +00:00
Jim Grosbach
f264fe8e05 Add PrintSpecial() handling for in ARM MC instruction printer. 
llvm-svn: 114563
 2010-09-22 18:37:14 +00:00
Jim Grosbach
8899a330c7 grammar tweakage 
llvm-svn: 114561
 2010-09-22 18:18:30 +00:00
Jim Grosbach
f8956463a7 remove trailing whitespace 
llvm-svn: 114560
 2010-09-22 18:16:55 +00:00