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30444 Commits

Author SHA1 Message Date
Dan Gohman
b895f668cc AliasAnalysis wants sizes in address-units, not bits. 
llvm-svn: 77009
 2009-07-24 23:01:30 +00:00
Eli Friedman
11e86150c4 Fix assert assembling zero-argument constant GEP. 
There's still a strict-aliasing violation here, but I don't feel like 
dealing with that right now...

llvm-svn: 77005
 2009-07-24 21:56:17 +00:00
Evan Cheng
84cf748468 Uh. It would be useful to actually print the operand. 
llvm-svn: 77004
 2009-07-24 20:47:38 +00:00
Chris Lattner
50d9b68935 fix some predicates 
llvm-svn: 76999
 2009-07-24 20:27:11 +00:00
Chris Lattner
89b6f54999 change SectionKindForGlobal from being a public (and 
previously virtual) function to being a static function
in the .cpp file.

llvm-svn: 76997
 2009-07-24 20:14:10 +00:00
Evan Cheng
597bf41097 Disable my constant island pass optimization (to make use soimm more effectively). It caused infinite looping on lencod. 
llvm-svn: 76995
 2009-07-24 19:31:03 +00:00
Chris Lattner
3d63455016 make SectionKindForGlobal target independent, and therefore non-virtual. 
It's classifications now include elf-specific discriminators.  Targets
that don't have these features (like darwin and pecoff) simply treat
data.rel like data, etc.

llvm-svn: 76993
 2009-07-24 19:15:47 +00:00
Evan Cheng
92376f5a32 Add a workaround for Darwin assembler bug where it's not setting the thumb bit in Thumb2 jumptable entries. We now pass Olden. 
llvm-svn: 76991
 2009-07-24 18:54:23 +00:00
Chris Lattner
5af94066ee we already know the sectionkind when invoking SelectSectionForGlobal, 
pass it in instead of recomputing it.

llvm-svn: 76990
 2009-07-24 18:42:53 +00:00
Chris Lattner
cc951ce3cb make SectionForGlobal non-virtual, add a hook for pic16 to do its "address=" hack. 
llvm-svn: 76989
 2009-07-24 18:34:27 +00:00
Dan Gohman
58619d5ad2 Fix this condition I accidentally inverted. 
llvm-svn: 76988
 2009-07-24 18:31:07 +00:00
Jakob Stoklund Olesen
5ca1bdc613 Add support for promoting SETCC operations. 
llvm-svn: 76987
 2009-07-24 18:22:59 +00:00
Evan Cheng
e01fec5446 Make sure thumb2 jumptable entries are aligned. 
llvm-svn: 76986
 2009-07-24 18:20:44 +00:00
Evan Cheng
c4221e9b04 Clean up. 
llvm-svn: 76984
 2009-07-24 18:20:16 +00:00
Evan Cheng
5bab9444f9 Replace use of std::set with SmallPtrSet. 
llvm-svn: 76983
 2009-07-24 18:19:46 +00:00
Dan Gohman
f1a01b8cc0 Convert several more passes to use getAnalysisIfAvailable<TargetData>() 
instead of getAnalysis<TargetData>().

llvm-svn: 76982
 2009-07-24 18:13:53 +00:00
Chris Lattner
a9c1641014 start refactoring pic16 section selection logic. 
llvm-svn: 76977
 2009-07-24 17:13:27 +00:00
Chris Lattner
37abb9f4ba move ELF-specific code into ELFTargetAsmInfo. 
llvm-svn: 76976
 2009-07-24 17:02:17 +00:00
Chris Lattner
ad0925f556 tidy up 
llvm-svn: 76975
 2009-07-24 16:53:52 +00:00
Chris Lattner
bd89cc24bb split the ELF-specific section flag inference-from-name code out 
into its own helper function.

llvm-svn: 76974
 2009-07-24 16:50:24 +00:00
Chris Lattner
6e4d35f825 make SectionFlagsForGlobal a private static function instead of a public 
virtual one.

llvm-svn: 76973
 2009-07-24 16:46:50 +00:00
Chris Lattner
6bb2030fa8 move a method up in the file, GV is always non-null, so remove a check. 
llvm-svn: 76972
 2009-07-24 16:44:01 +00:00
Chris Lattner
7d304b8e4e There is no need to pass the name into lib/Target/TargetAsmInfo.cpp 
when we have a global with no section explicitly specified.

llvm-svn: 76971
 2009-07-24 16:40:45 +00:00
Chris Lattner
1ae0ab672a remove a use of SectionFlagsForGlobal. 
llvm-svn: 76970
 2009-07-24 16:40:09 +00:00
Daniel Dunbar
b3d81314f6 Another getName -> getNameStr 
llvm-svn: 76967
 2009-07-24 12:21:08 +00:00
Daniel Dunbar
da47773d6a More move to raw_ostream. 
llvm-svn: 76966
 2009-07-24 10:47:20 +00:00
Daniel Dunbar
339c88008f Move more to raw_ostream, provide support for writing MachineBasicBlock, 
LiveInterval, etc to raw_ostream.

llvm-svn: 76965
 2009-07-24 10:36:58 +00:00
Daniel Dunbar
ea6955ce65 Move more to raw_ostream. 
llvm-svn: 76964
 2009-07-24 10:05:20 +00:00
Daniel Dunbar
1df20e31e5 Move to raw_ostream. 
llvm-svn: 76963
 2009-07-24 09:53:24 +00:00
Daniel Dunbar
e3fea713f1 Switch to getNameStr(). 
llvm-svn: 76962
 2009-07-24 08:24:36 +00:00
Daniel Dunbar
076387bcc0 Allow llvm_report_error to accept a Twine. 
llvm-svn: 76961
 2009-07-24 07:58:10 +00:00
Eli Friedman
1be7dfb1aa Remove unused member functions. 
llvm-svn: 76960
 2009-07-24 07:43:59 +00:00
Daniel Dunbar
bc0b1a1506 Update CMake 
llvm-svn: 76957
 2009-07-24 07:04:49 +00:00
Daniel Dunbar
6f78d7ac27 Add Twine ADT. 
- Not currently used.

llvm-svn: 76956
 2009-07-24 07:04:27 +00:00
Chris Lattner
d594b72797 hoist section name uniquing logic up to the top-level SectionForGlobal 
implementation, eliminating a dupe.

llvm-svn: 76953
 2009-07-24 05:10:25 +00:00
Chris Lattner
20d18ee0c4 reduce indentation 
llvm-svn: 76951
 2009-07-24 05:01:55 +00:00
Chris Lattner
259a7b2a4d simplify code by making special case more obvious 
llvm-svn: 76950
 2009-07-24 04:59:43 +00:00
Chris Lattner
e21abfb5c1 the 'isWeakForLinker' code is common between functions and globals, hoist it 
and simplify some other code.

llvm-svn: 76949
 2009-07-24 04:52:38 +00:00
Chris Lattner
4bb9a9a7d3 Replace UniqueSectionForGlobal with getSectionPrefixForUniqueGlobal. 
The later doesn't depend on any crazy LLVM IR stuff, and this
pulls the concatenation of prefix with GV name (the root problem behind
PR4584) out one level.

llvm-svn: 76948
 2009-07-24 04:49:34 +00:00
Chris Lattner
a82421ce2f document SectionFlags::Named better and make it more easily greppable by 
eliminating isNamed.

llvm-svn: 76946
 2009-07-24 04:26:19 +00:00
Chris Lattner
32c8463bb5 fix indentation. 
llvm-svn: 76945
 2009-07-24 04:11:40 +00:00
Chris Lattner
13611a24d8 use section flags more correctly. 
llvm-svn: 76944
 2009-07-24 04:08:17 +00:00
Daniel Dunbar
5895c5adf3 Switch to raw_ostream. 
llvm-svn: 76943
 2009-07-24 04:01:01 +00:00
Chris Lattner
9aa6064164 fix a mysterious and scary failure on test/CodeGen/X86/cstring.ll 
llvm-svn: 76942
 2009-07-24 03:55:48 +00:00
Chris Lattner
6339e5e786 reduce api exposure: clients shouldn't call SectionKindForGlobal directly. 
llvm-svn: 76941
 2009-07-24 03:49:17 +00:00
Chris Lattner
2cae10056c make Constant::getRelocationInfo return an enum, as suggested by Duncan. 
llvm-svn: 76938
 2009-07-24 03:27:21 +00:00
Chris Lattner
b7fcec2e8c remove more bits of small section support. 
llvm-svn: 76937
 2009-07-24 03:16:53 +00:00
Chris Lattner
f4c7765d30 remove more remnants of small section support. 
llvm-svn: 76936
 2009-07-24 03:14:35 +00:00
Chris Lattner
09511ed243 Remove SectionKind::Small*. This was only used on mips, and is apparently 
a sad mistake that is regretted. :)

llvm-svn: 76935
 2009-07-24 03:11:51 +00:00
Evan Cheng
d18a7fc185 Thumb2 should use the register scavenger. 
llvm-svn: 76930
 2009-07-24 01:05:51 +00:00
Dan Gohman
4c5b26a78e Fix whitespace. 
llvm-svn: 76929
 2009-07-24 01:03:59 +00:00
Evan Cheng
d13b8f8353 FLDD, FLDS, FCPYD, FCPYS, FSTD, FSTS, VMOVD, VMOVQ maps to the same instructions on all sub-targets. 
llvm-svn: 76925
 2009-07-24 00:53:56 +00:00
Owen Anderson
be00de7dfe Privatize the ConstantVector tables. 
llvm-svn: 76922
 2009-07-24 00:36:24 +00:00
Eric Christopher
c205a8da9d Update insertps handling based on feedback. Move to a v4f32 style 
to support vector arguments and scalar arguments correctly. Update
lowering and fix comment to refer to pinsr* instead of insertps.

llvm-svn: 76921
 2009-07-24 00:33:09 +00:00
Dan Gohman
62c8b40b66 Remove the IA-64 backend. 
llvm-svn: 76920
 2009-07-24 00:30:09 +00:00
David Goodwin
85bcdffa4f Correctly handle the Thumb-2 imm8 addrmode. Specialize frame index elimination more exactly for Thumb-2 to get better code gen. 
llvm-svn: 76919
 2009-07-24 00:16:18 +00:00
Sean Callanan
73b927334f Added a 2+-byte NOP instruction to the Intel tables, 
for the assembler/disassembler to use.

llvm-svn: 76914
 2009-07-23 23:39:34 +00:00
Owen Anderson
d449007c92 Privatize the ConstantStruct table. 
llvm-svn: 76912
 2009-07-23 23:25:33 +00:00
David Greene
d40b2dbb34 Write space padding as one string to speed up comment printing. 
llvm-svn: 76910
 2009-07-23 23:21:10 +00:00
Evan Cheng
90f66e1c4e Thumb2 does not allow the use of "pc" register as part of the load / store address. 
llvm-svn: 76909
 2009-07-23 23:09:51 +00:00
Reid Kleckner
3f197c850d Re-committing r76828 with the JIT memory manager changes now that the build 
bots like the BumpPtrAllocator changes.

llvm-svn: 76902
 2009-07-23 21:46:56 +00:00
Chris Lattner
bbcb16a3eb "fix" PR4612, which is a crash on: 
%0 = malloc [3758096384 x i32]

The "malloc" instruction doesn't support 64-bits correctly (see PR715),
and should be removed.  Victor is actively working on fixing this, in 
the meantime just don't crash.

llvm-svn: 76899
 2009-07-23 21:26:18 +00:00
Duncan Sands
f4838d90e4 Revert r75581: it causes massive breakage in the Ada 
testsuite, due to exception handling not working
correctly.  Maybe because the libgcc unwinder is
miscompiled - not sure, and I won't have time to
look into it before leaving on holiday.  Note that
miscompilations of libgcc are not picked up by the
nightly testers, because they dynamically link with
libgcc, so pick up the system version rather than
the version built as part of llvm-gcc.  This is a
nasty flaw in the nightly testers.  (On the other
hand the Ada testsuite links with the just built
libgcc).

llvm-svn: 76895
 2009-07-23 19:00:02 +00:00
Daniel Dunbar
4499c47ea4 Switch ValueSymbolTable to StringRef based API. 
llvm-svn: 76894
 2009-07-23 18:52:12 +00:00
Daniel Dunbar
00155504f8 Add llvm::Value::getNameRef, for help in API migration. 
llvm-svn: 76893
 2009-07-23 18:50:53 +00:00
Reid Kleckner
5a7816053e Re-committing changes from r76825 to BumpPtrAllocator with a fix and tests for 
an off-by-one error.

llvm-svn: 76891
 2009-07-23 18:34:13 +00:00
Evan Cheng
f6b88eae82 Fix up ARM constant island pass for Thumb2. 
Also fixed up code to fully use the SoImm field for ADR on ARM mode.

llvm-svn: 76890
 2009-07-23 18:27:47 +00:00
Evan Cheng
8997f6bfc1 Since we have moved unified assembly, switch to ADR instruction instead of a the difficult-to-read .set + add syntax to materialize pc-relative address. 
Turns out this also fixed a poor code selection on Thumb1. I have no idea why we were using a mov + add to do the same thing as ADR before.

llvm-svn: 76889
 2009-07-23 18:26:03 +00:00
Daniel Dunbar
b5adc13728 Convert StringMap to using StringRef for its APIs. 
- Yay for '-'s and simplifications!

 - I kept StringMap::GetOrCreateValue for compatibility purposes, this can
   eventually go away. Likewise the StringMapEntry Create functions still follow
   the old style.

 - NIFC.

llvm-svn: 76888
 2009-07-23 18:17:34 +00:00
David Goodwin
f3c839e0b9 Fix frame index elimination to correctly handle thumb-2 addressing modes that don't allow negative offsets. During frame elimination convert *i12 opcode to a *i8 when necessary due to a negative offset. 
llvm-svn: 76883
 2009-07-23 17:06:46 +00:00
Andreas Bolka
f0462da445 Cache dependence computation using FoldingSet. 
This introduces an LDA-internal DependencePair class. The intention is,
that this is a place where dependence testers can store various results
such as SCEVs describing conflicting iterations, breaking conditions,
distance/direction vectors, etc.

llvm-svn: 76877
 2009-07-23 14:32:46 +00:00
Evan Cheng
c21e149091 80 col violation. 
llvm-svn: 76872
 2009-07-23 07:58:08 +00:00
Chris Lattner
2ed4453d0e refactor a blob of code out to a new 'FoldOrOfFCmps' function and 
simplify it.

llvm-svn: 76866
 2009-07-23 05:46:22 +00:00
Lang Hames
85f4012739 For real this time: PHI Def & Kill tracking added to PHIElimination. 
llvm-svn: 76865
 2009-07-23 05:44:24 +00:00
Chris Lattner
c687344f0c Make some existing optimizations that would only trigger on scalars 
also apply to vectors.  This allows us to compile this:

#include <emmintrin.h>
__m128i a(__m128 a, __m128 b) { return a==a & b==b; }
__m128i b(__m128 a, __m128 b) { return a!=a | b!=b; }

to:

_a:
	cmpordps	%xmm1, %xmm0
	ret
_b:
	cmpunordps	%xmm1, %xmm0
	ret

with clang instead of to a ton of horrible code.

llvm-svn: 76863
 2009-07-23 05:32:17 +00:00
Chris Lattner
af6fdef894 refactor a bunch of code out into a helper function, 
no functionality change.

llvm-svn: 76859
 2009-07-23 05:14:02 +00:00
Lang Hames
1716e28365 Added PHI Def & Kill tracking to PHIElimination pass. 
llvm-svn: 76849
 2009-07-23 04:34:03 +00:00
Eric Christopher
c9299d5756 Support insertps via the intrinsic and add a couple of simple 
testcases to make sure it's being generated.

llvm-svn: 76843
 2009-07-23 02:22:41 +00:00
Sanjiv Gupta
d62bebab22 Do not call getMangledName on Intrinsics. 
llvm-svn: 76842
 2009-07-23 02:11:04 +00:00
Devang Patel
45ce5c2ac1 MDString 
- Rename member function size(). New name is length().
- Store string beginning and length. Earlier it used to store string end.

llvm-svn: 76841
 2009-07-23 02:00:51 +00:00
Andreas Bolka
b33d956e21 Minor cosmetics: indentation, formatting, naming. 
llvm-svn: 76839
 2009-07-23 01:57:06 +00:00
Reid Kleckner
6f9bf7f028 Reverting r76825 and r76828, since they caused clang runtime errors and some build failure involving memset. 
llvm-svn: 76838
 2009-07-23 01:40:54 +00:00
Zhongxing Xu
cd7c9007d1 add header for 'memset'. 
llvm-svn: 76837
 2009-07-23 01:38:47 +00:00
Devang Patel
63cece4454 Silence "uninitialized use" warning. 
llvm-svn: 76836
 2009-07-23 01:36:16 +00:00
Devang Patel
6b2162686a Derive MDNode from MetadataBase instead of Constant. Emit MDNodes into METADATA_BLOCK in bitcode file. 
llvm-svn: 76834
 2009-07-23 01:07:34 +00:00
Eric Christopher
973fc2d7ab Fix error message for correct opcode. 
llvm-svn: 76829
 2009-07-23 01:01:32 +00:00
Reid Kleckner
b500f07edf Make the JIT code emitter properly retry and ask for more memory when it runs 
out of memory, and also make the default memory manager allocate more memory
when it runs out.

Also, switch function stubs and global data over to using the BumpPtrAllocator.

This makes it so the JIT no longer mmaps (or the equivalent on Windows) 16 MB
of memory, and instead allocates in 512K slabs.  I suspect this size could go
lower, especially on embedded platforms, now that more slabs can be allocated.

llvm-svn: 76828
 2009-07-23 00:49:59 +00:00
Reid Kleckner
4c892c05ec Parameterize the BumpPtrAllocator over a slab allocator. It defaults to using 
malloc, so there should be no functional changes to other code.

These changes are necessary since I have plans to use this allocator in the JIT
memory manager, and it needs a special allocator.

I also added some tests which helped me pinpoint some bugs.

llvm-svn: 76825
 2009-07-23 00:30:41 +00:00
Chris Lattner
a3b58f4ecd remove SectionFlags::Small: it is only used on Xcore, and we'll find 
a better solution for it in the future.

llvm-svn: 76818
 2009-07-22 23:27:22 +00:00
Dan Gohman
840e7f252e x86 isel tweak: use lea (%reg,%reg) instead of lea (,%reg,2). 
llvm-svn: 76817
 2009-07-22 23:26:55 +00:00
Dan Gohman
001d777207 Rename the new unsigned and signed keywords to nuw and nsw, 
which stand for no-unsigned-wrap and no-signed-wrap.

llvm-svn: 76810
 2009-07-22 22:44:56 +00:00
David Greene
d1f9f45b05 Reorder if-else branches as suggested by Bill. 
llvm-svn: 76808
 2009-07-22 22:32:19 +00:00
David Goodwin
6fa63db9be Fix typo in addrmode definition. 
llvm-svn: 76806
 2009-07-22 22:24:31 +00:00
Evan Cheng
4a77f28c47 Use getTargetConstant instead of getConstant since it's meant as an constant operand. 
llvm-svn: 76803
 2009-07-22 22:03:29 +00:00
David Greene
fede97eac6 Constify the key in Mi2IndexMap. 
llvm-svn: 76801
 2009-07-22 21:56:14 +00:00
Evan Cheng
88dbc00ca7 Ignore undef uses. 
llvm-svn: 76799
 2009-07-22 21:51:42 +00:00
Daniel Dunbar
3119e6a609 Switch some clients to Value::getName(), and other getName() user 
simplification.
 - NFC

llvm-svn: 76789
 2009-07-22 21:33:09 +00:00
Devang Patel
963b3bc974 Fix indentation. 
llvm-svn: 76787
 2009-07-22 21:10:50 +00:00
Daniel Dunbar
0ff394b13d Simplify some uses of Value::getName() 
llvm-svn: 76786
 2009-07-22 21:10:12 +00:00
Daniel Dunbar
51818313fe Remove unnecessary store to temporary std::string. 
llvm-svn: 76782
 2009-07-22 20:46:46 +00:00
David Greene
76d89c51ce Put comment printing under asm-verbose. 
llvm-svn: 76780
 2009-07-22 20:33:26 +00:00
Daniel Dunbar
b6a40026a7 Fix indentation. 
llvm-svn: 76778
 2009-07-22 20:26:37 +00:00
David Greene
7f92a15a4b Make some changes suggested by Bill and Evan. 
llvm-svn: 76775
 2009-07-22 20:08:25 +00:00
Devang Patel
7b31d8224d Fix thinko. 
llvm-svn: 76769
 2009-07-22 18:56:16 +00:00
Devang Patel
04a1939c08 Use isa<> instead of dyn_cast<>. 
llvm-svn: 76767
 2009-07-22 18:35:25 +00:00
Devang Patel
a047636be2 Add replaceAllUsesWith() to FE replace debug info constructs while building complex types. 
llvm-svn: 76765
 2009-07-22 18:23:44 +00:00
Devang Patel
5456f0ba29 Do not print "metadata" twice while printing MDString. 
This fixes unittest failure.

llvm-svn: 76764
 2009-07-22 18:10:23 +00:00
Evan Cheng
ae91b0616b Eliminate a redudant check Eli pointed out. 
llvm-svn: 76762
 2009-07-22 18:08:05 +00:00
Sanjiv Gupta
2168098478 Fixed build warning. No functionality change. 
llvm-svn: 76761
 2009-07-22 17:58:47 +00:00
Devang Patel
5794cb80ad Introduce MetadataBase, a base class for MDString and MDNode. 
Derive MDString directly from MetadataBase. 
Introduce new bitcode block to hold metadata.

llvm-svn: 76759
 2009-07-22 17:43:22 +00:00
Chris Lattner
573e2cde50 doxygenify 
llvm-svn: 76750
 2009-07-22 16:53:56 +00:00
Duncan Sands
16fd5fb3e8 Add newline at end of file. 
llvm-svn: 76736
 2009-07-22 13:20:41 +00:00
Richard Osborne
7f495fd2bd Thread local globals don't require special handling by the linker and so can 
be placed in the standard data / bss sections.

llvm-svn: 76735
 2009-07-22 11:01:00 +00:00
Duncan Sands
2a4535353f Revert commit 76707, it was breaking the llvm-gcc build 
on linux platforms.  The binutils assembler does not
recognize the "s" flag, see for example
http://sourceware.org/binutils/docs/as/Section.html 

llvm-svn: 76733
 2009-07-22 10:35:05 +00:00
Eli Friedman
ca2e01b721 Don't give a massive inlining cost bonus to available_externally 
functions with a single use; eliminating the single use may eliminate 
the function from the current module, but usually doesn't eliminate 
it from the final program.

llvm-svn: 76730
 2009-07-22 08:12:59 +00:00
Evan Cheng
34576850e1 Don't forget D16 - D31 are clobbered by calls and sjlj eh. 
llvm-svn: 76729
 2009-07-22 06:46:53 +00:00
Evan Cheng
4fdb43a89d Add R12 to the list of registers clobbered by 16-bit Thumb calls as a pre-caution. r12 could be live once we have mixed 32-bit and 16-bit instructions. 
llvm-svn: 76728
 2009-07-22 06:37:28 +00:00
Evan Cheng
2e2a1cbab7 Fix a obvious copy-n-paste bug. 
llvm-svn: 76727
 2009-07-22 06:12:40 +00:00
Evan Cheng
005330f8a0 Get rid one of the getRegisterNumbering. Also add D16 - D31. 
llvm-svn: 76725
 2009-07-22 05:55:18 +00:00
Eli Friedman
2b4857cdff Add support for MMX VSETCC. 
llvm-svn: 76713
 2009-07-22 01:06:52 +00:00
Sean Callanan
1e9eb16a45 Added the unconditional JMP with an 8-bit relocation for the 
assembler / disassembler.

llvm-svn: 76712
 2009-07-22 01:05:20 +00:00
Evan Cheng
f0af946ac8 Add an entry. 
llvm-svn: 76711
 2009-07-22 00:58:27 +00:00
Chris Lattner
2ef030ec2e inline the two MergeableConstSection implementations into their 
only caller.

llvm-svn: 76710
 2009-07-22 00:47:11 +00:00
Chris Lattner
ced616dd50 set the ELF "small" flag on objects that end up in .rodata.cst4 consistently, 
updating a mips testcase to expect it.

llvm-svn: 76707
 2009-07-22 00:41:56 +00:00
Chris Lattner
d966e55a42 don't set the small flag yet. 
llvm-svn: 76706
 2009-07-22 00:30:39 +00:00
Chris Lattner
e2bd5bc939 remove the SelectSectionForMachineConst hook, replacing it with 
a new getSectionForMergableConstant hook.  This removes one dependence
of TAI on Type, and provides the hook with enough info to make the 
right decision based on whether the global has relocations etc.

llvm-svn: 76705
 2009-07-22 00:28:43 +00:00
Evan Cheng
82499c09ff Let each target determines whether a machine instruction is dead. If true, that allows late codeine passes to delete it. 
This is considered a workaround. The problem is some targets are not modeling side effects correctly. PPC is apparently one of those. This patch allows ppc llvm-gcc to bootstrap on Darwin. Once we find out which instruction definitions are wrong, we can remove the PPCInstrInfo workaround.

llvm-svn: 76703
 2009-07-22 00:25:27 +00:00
Owen Anderson
cc287b28c9 Get rid of the Pass+Context magic. 
llvm-svn: 76702
 2009-07-22 00:24:57 +00:00
Chris Lattner
48dffde0d7 reimplement Constant::ContainsRelocations as 
Constant::getRelocationInfo(), which has a much simpler
to use API.  It still should not be part of libvmcore, but
is better than it was.  Also teach it to be smart about 
hidden visibility.

llvm-svn: 76700
 2009-07-22 00:05:44 +00:00
Evan Cheng
b639684766 Fixing cp island pass. Step 1: Determine whether the constant pool offset can be 
negative on an individual bases rather than basing on whether it's in thumb
mode.

llvm-svn: 76698
 2009-07-21 23:56:01 +00:00
Evan Cheng
149b0d4cf1 Fix comment. 
llvm-svn: 76693
 2009-07-21 23:54:22 +00:00
Chris Lattner
4d3b78e0f5 simplify code now that it is inlined. 
llvm-svn: 76689
 2009-07-21 23:49:55 +00:00
Lang Hames
0e61f87ea3 Exposed PHIElimination pass within CodeGen. 
llvm-svn: 76688
 2009-07-21 23:47:33 +00:00
Chris Lattner
b9332126cc Now that RelocBehaviour() is never overloaded, it doesn't need to be 
virtual.  Just inline it into its two current call sites in preparation
for simplifying the code.

llvm-svn: 76686
 2009-07-21 23:47:11 +00:00
Chris Lattner
c1c5dab4c4 this doesn't break any of the 4 ia64 tests. 
llvm-svn: 76683
 2009-07-21 23:42:24 +00:00
Chris Lattner
5c144a5948 alpha doesn't need to redefine this: it only supports PIC codegen anyway. 
llvm-svn: 76682
 2009-07-21 23:41:35 +00:00
David Greene
ddaf106a0c Add some support for iterative coalescers to calculate a joined live 
range's weight properly.  This is turned off right now in the sense that
you'll get an assert if you get into a situation that can only be caused
by an iterative coalescer.  All other code paths operate exactly as
before so there is no functional change with this patch.  The asserts
should be disabled if/when an iterative coalescer gets added to trunk.

llvm-svn: 76680
 2009-07-21 23:36:14 +00:00
Chris Lattner
fb908d7671 no really, I can spell! 
llvm-svn: 76679
 2009-07-21 23:36:01 +00:00
Chris Lattner
11b49ed2ce add an API so target-independent codegen can determine if a constant 
pool entry will require relocations against it.  I implemented this
conservatively for ARM, someone who is knowledgable about it should
see if this can be improved.

llvm-svn: 76678
 2009-07-21 23:34:23 +00:00
Dan Gohman
b45091f0f9 Convert instcombine from using using getAnalysis<TargetData> to 
getAnalysisIfAvailable<TargetData>.

llvm-svn: 76676
 2009-07-21 23:21:54 +00:00
Dan Gohman
8577dd4cca Permit the IntPtrTy argument to isEliminableCastPair to be null, 
to help support use when TargetData is not available.

llvm-svn: 76675
 2009-07-21 23:19:40 +00:00
Bruno Cardoso Lopes
3483574772 Change ELFCodeEmitter logic to emit the constant pool and jump tables to 
their appropriate sections before the code itself. They need to be emitted
before the function because on some targets (x86 but not x86_64) the later
may reference a JT or CP entry address

llvm-svn: 76672
 2009-07-21 23:13:26 +00:00
Dan Gohman
190d29cb5c Replace the original ad-hoc code for determining whether (v pred w) implies 
(x pred y) with more thorough code that does more complete canonicalization
before resorting to range checks. This helps it find more cases where
the canonicalized expressions match.

llvm-svn: 76671
 2009-07-21 23:03:19 +00:00
Chris Lattner
fb3e6ae8b2 remove the last bits of SectionFlagsForGlobal. There is some flag here that 
depends on XS1A, but I think the ReadOnlySection is already set up for this
and there is no testcase that this breaks.  If this is really needed, we can
add the appropriate parameterization to TargetAsmInfo in the future to support
this.

llvm-svn: 76667
 2009-07-21 22:42:37 +00:00
Chris Lattner
bca235c1d3 don't mask out the small flag and then reapply it later. 
llvm-svn: 76666
 2009-07-21 22:39:28 +00:00
Chris Lattner
34ba5422cd if Xcore doesn't support TLS, it doesn't have to worry about thread local LLVM IR, it should be rejected by a front-end. 
llvm-svn: 76665
 2009-07-21 22:37:38 +00:00
Chris Lattner
aa793632ff remove the Xcore implementation of SelectSectionForGlobal. While you have 
to twist your brain to see it, I believe it is the same as ELFTargetAsmInfo::SelectSectionForGlobal.

llvm-svn: 76664
 2009-07-21 22:36:53 +00:00
Chris Lattner
8a24ab398f simplify based on the fact that darwin always uses L/l. 
llvm-svn: 76662
 2009-07-21 22:32:55 +00:00
Chris Lattner
b52c8153f3 make some stuff private. 
llvm-svn: 76661
 2009-07-21 22:30:39 +00:00
Chris Lattner
0a3a6f2ceb Remove the XCore custom implementation of MergeableConstSection, relying on 
the generic ELF version instead.  This will result in its mergable constant
sections getting named ".rodata.cst4" instead of ".cp.const4", but the
linker looks at the section flags, not the name of the section AFAICT.

llvm-svn: 76659
 2009-07-21 22:25:52 +00:00
Chris Lattner
8d061f011b inline a trivial method into its only call site and fix indentation of cases 
llvm-svn: 76654
 2009-07-21 21:29:08 +00:00
Chris Lattner
4815d4919c Remove some overridden functions in XCoreTargetAsmInfo that are 
implemented exactly the same way as its ELFTargetAsmInfo subclass 
has them.

llvm-svn: 76653
 2009-07-21 21:26:32 +00:00
Chris Lattner
135caf1a2b revert r76602, 76603, and r76615, pending design discussions. 
llvm-svn: 76646
 2009-07-21 21:12:58 +00:00
Chris Lattner
589a37a068 minor cleanups. 
llvm-svn: 76645
 2009-07-21 21:09:35 +00:00
Owen Anderson
a8637e9824 Privatize the ConstantArray table. 
llvm-svn: 76639
 2009-07-21 20:55:28 +00:00
Eli Friedman
a78b44069b Missed a piece of the commit to remove the shift flavor. 
llvm-svn: 76635
 2009-07-21 20:15:24 +00:00
Owen Anderson
bdcb99324a Privatize the first of the value maps. 
llvm-svn: 76634
 2009-07-21 20:13:12 +00:00
Eli Friedman
45160af6bd Remove shift amount flavor. It isn't actually complete enough to 
be useful, and it's currently unused.  (Some issues: it isn't actually 
rich enough to capture the semantics on many architectures, and
semantics can vary depending on the type being shifted.)

llvm-svn: 76633
 2009-07-21 20:12:16 +00:00
Eli Friedman
a62553ec99 Remove a couple of already-implemented notes. 
llvm-svn: 76631
 2009-07-21 20:05:43 +00:00
David Greene
94bfedaf40 Prefix IR dumps with LiveInterval indices when possible. This turns 
this:

	%ESI<def> = MOV32rr %EDI<kill>
	ADJCALLSTACKDOWN64 0, %RSP<imp-def>, %EFLAGS<imp-def,dead>, %RSP<imp-use>
	%reg1027<def> = MOVZX64rr32 %ESI
	%reg1027<def> = ADD64ri8 %reg1027, 15, %EFLAGS<imp-def,dead>
	%reg1027<def> = AND64ri8 %reg1027, -16, %EFLAGS<imp-def,dead>
	%RDI<def> = MOV64rr %RSP
	%RDI<def> = SUB64rr %RDI, %reg1027<kill>, %EFLAGS<imp-def,dead>
	%RSP<def> = MOV64rr %RDI

into this:

4	%reg1024<def> = MOV32rr %EDI<kill>
12	ADJCALLSTACKDOWN64 0, %RSP<imp-def>, %EFLAGS<imp-def,dead>, %RSP<imp-use>
20	%reg1025<def> = MOVZX64rr32 %reg1024
28	%reg1026<def> = MOV64rr %reg1025<kill>
36	%reg1026<def> = ADD64ri8 %reg1026, 15, %EFLAGS<imp-def,dead>
44	%reg1027<def> = MOV64rr %reg1026<kill>
52	%reg1027<def> = AND64ri8 %reg1027, -16, %EFLAGS<imp-def,dead>
60	%reg1028<def> = MOV64rr %RSP
68	%reg1029<def> = MOV64rr %reg1028<kill>
76	%reg1029<def> = SUB64rr %reg1029, %reg1027<kill>, %EFLAGS<imp-def,dead>
84	%RSP<def> = MOV64rr %reg1029

This helps greatly when debugging register allocation and coalescing
problems.

llvm-svn: 76615
 2009-07-21 18:56:32 +00:00
Evan Cheng
66f1d7a0e1 Add fake v7 itineraries for now. 
llvm-svn: 76612
 2009-07-21 18:54:14 +00:00
Chris Lattner
3d4ab7a231 make AsmPrinter::doFinalization iterate over the global variables 
and call PrintGlobalVariable, allowing elimination and simplification
of various targets.

llvm-svn: 76604
 2009-07-21 18:38:57 +00:00
David Greene
979d7aa03a Add PrefixPrinter arguments to the dump routines for MachineFunction and 
MachineBasicBlock.  We'll use these shortly.

llvm-svn: 76603
 2009-07-21 18:27:05 +00:00
Evan Cheng
192fc19379 Do not select tSXTB / tSXTH in thumb2 mode. 
llvm-svn: 76600
 2009-07-21 18:15:26 +00:00
Owen Anderson
7f61f8dc30 Rename getConstantInt{True|False} to get{True|False} at Chris' behest. 
llvm-svn: 76598
 2009-07-21 18:03:38 +00:00
Chris Lattner
89785b23b8 reduce indentation by using an early exit. 
llvm-svn: 76596
 2009-07-21 17:59:36 +00:00
Ted Kremenek
60d0ab4838 Update CMake files. 
llvm-svn: 76595
 2009-07-21 17:43:20 +00:00
Chris Lattner
ac0f5e081e whitespace cleanups, make the MipsAsmPrinter::doInitialization 
chain to the super class instead of initializing mangler directly.
This gives it .file and module level inline asm support among other
things.

llvm-svn: 76593
 2009-07-21 17:39:48 +00:00
Chris Lattner
433fbf959a fix Sparc, SystemZ, and MSP430 to not override AsmPrinter::doInitialization. 
This eliminates redundancy setting up the mangler and adds support to them
for module-level inline asm and a .file directive.

llvm-svn: 76592
 2009-07-21 17:37:35 +00:00
Chris Lattner
0f65fbf095 Rename LessPrivateGlobalPrefix -> LinkerPrivateGlobalPrefix to match the 
LLVM IR concept.

llvm-svn: 76590
 2009-07-21 17:30:51 +00:00
Chris Lattner
61fcb8d26b fix indentation 
llvm-svn: 76587
 2009-07-21 17:25:13 +00:00
Chris Lattner
31a9d57bb9 remove an unneeded override. 
llvm-svn: 76586
 2009-07-21 17:23:41 +00:00
Chris Lattner
2c8fed2c75 more random whitespace cleanup, eliminate #define, avoid copying 
vectors needlessly, doxygenify comments, improve constness, etc.

llvm-svn: 76585
 2009-07-21 17:20:18 +00:00
Chris Lattner
99a474f026 some simple whitespace cleanup, avoid copying vectors for no reason 
as much, etc.

llvm-svn: 76578
 2009-07-21 16:44:47 +00:00
Evan Cheng
c142755cec Another rewriter bug exposed by recent coalescer changes. ReuseInfo::GetRegForReload() should make sure the "switched" register is in the desired register class. I'm surprised this hasn't caused more failures in the past. 
llvm-svn: 76558
 2009-07-21 09:15:00 +00:00
Daniel Dunbar
3447c5ce67 Add missing include. 
llvm-svn: 76555
 2009-07-21 08:58:44 +00:00
Daniel Dunbar
6f594a00b0 Switch this API to StringRef. 
llvm-svn: 76554
 2009-07-21 08:57:31 +00:00
Daniel Dunbar
a0a76c174b Simplify / normalize some uses of Value::getName. 
llvm-svn: 76553
 2009-07-21 08:54:24 +00:00
Daniel Dunbar
1edc7a0eab Remove some unused code. 
llvm-svn: 76541
 2009-07-21 07:08:59 +00:00
Bruno Cardoso Lopes
2015382398 Support adding relocations for data sections, handling the cases where 
global declared symbols are initialized with references from other global
symbols.

llvm-svn: 76540
 2009-07-21 06:51:32 +00:00
Evan Cheng
d76397061a Add jumps with 8-bit relocation for assembler / disassembler. Patch by Sean Callanan. 
llvm-svn: 76536
 2009-07-21 06:00:18 +00:00
Evan Cheng
0cf19155ef Fix a dagga combiner bug: avoid creating illegal constant. 
Is this really a winning transformation?
fold (shl (srl x, c1), c2) -> (shl (and x, (shl -1, c1)), (sub c2, c1)) or                                                                              
                              (srl (and x, (shl -1, c1)), (sub c1, c2))

llvm-svn: 76535
 2009-07-21 05:40:15 +00:00
Owen Anderson
b64eef73cf Move a bit more state over to the LLVMContext. 
llvm-svn: 76533
 2009-07-21 02:47:59 +00:00
Bill Wendling
50e5f4884a Add the following functions: 
- SYSCALL (normal fast system call instruction) [0f 05]
- SYSENTER (system call entry instruction) [0f 34]
- SYSEXIT (system call exit instruction) [0f 35]
- SYSEXIT64 (system call exit instruction to 64-bit user code) [REX.W 0f 35]
- SYSRET (system call return instruction) [0f 07]

Patch by Sean Callanan.

llvm-svn: 76528
 2009-07-21 01:07:24 +00:00
Dan Gohman
00fa00fec8 Make the range calculations for addrecs to be more conservative, 
as they aren't currently prepared to handle complicated overflow
cases.

llvm-svn: 76524
 2009-07-21 00:42:47 +00:00
Dan Gohman
4100aea6ad Whitespace cleanups. 
llvm-svn: 76523
 2009-07-21 00:38:55 +00:00
Dan Gohman
a37a433693 Minor code simplification. 
llvm-svn: 76521
 2009-07-21 00:37:45 +00:00
Evan Cheng
949c2404a2 Fix ARM isle code that optimize multiply by constants which are power-of-2 +/- 1. 
llvm-svn: 76520
 2009-07-21 00:31:12 +00:00
Evan Cheng
443ae1d494 Cross RC coalescing is now on by default. 
llvm-svn: 76519
 2009-07-21 00:22:59 +00:00
Dale Johannesen
8b0ece80d9 revert 76503 while I figure out what's going on 
llvm-svn: 76517
 2009-07-21 00:12:29 +00:00
Dan Gohman
47100f32c0 Add a comment to clarify why there isn't any code in this spot. 
llvm-svn: 76505
 2009-07-20 23:54:43 +00:00
Dan Gohman
857ccb8149 Remove the code that tried to evaluate whether (A pred B) is known 
by determining if (B pred (B-A)) is known, as it doesn't handle
overflow correctly.

llvm-svn: 76504
 2009-07-20 23:53:35 +00:00
Dale Johannesen
ee3f2d6dc3 Make sure a global matching asm 'i' constraint gets its 
flags set properly.  (hasMemory is clearly irrelevant
when matching 'i', I don't understand what this was
supposed to be doing.)
gcc.apple/asm-block-25.c (test passed before by
accident, but generated code was wrong)

llvm-svn: 76503
 2009-07-20 23:39:13 +00:00
Dale Johannesen
04c5ef4742 Move stripping of bitcasts in inline asm arguments 
to a place where it affects everything.  Occurs
only on calls AFAIK.

llvm-svn: 76502
 2009-07-20 23:27:39 +00:00
Dan Gohman
b92b14f20b Minor code simplification. 
llvm-svn: 76496
 2009-07-20 22:41:51 +00:00
Dan Gohman
74a435e9f1 The upper argument of ConstantRange is exclusive, not inclusive. 
llvm-svn: 76492
 2009-07-20 22:34:18 +00:00
Chris Lattner
27a2e74e58 clean up some formatting, indent by 2 instead of 4. 
llvm-svn: 76490
 2009-07-20 22:23:48 +00:00
David Goodwin
c5ee8fbaa7 CMP and TST define CPSR, not use it. 
llvm-svn: 76489
 2009-07-20 22:13:31 +00:00
David Greene
1ac6d4ac0e Re-apply 75490, 75806 and 76177 with fixes and tests. Efficiency comes 
next.

llvm-svn: 76486
 2009-07-20 22:02:59 +00:00
Bill Wendling
ca94e95735 Simplify the code in DarwinTargetAsmInfo::emitUsedDirectiveFor so that humans can understand it. 
llvm-svn: 76480
 2009-07-20 21:38:26 +00:00