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Author SHA1 Message Date
Wesley Peck
069e991659 Fix MBlaze backend call instructions so that arguments passed through registers 
are correctly marked as used. This removes a hack where the call instructions
marked all possible argument registers as used in the tablegen description.

llvm-svn: 121994
 2010-12-16 19:41:31 +00:00
Jim Grosbach
ce773319e4 Pseudo-ize the Thumb1 tBfar pattern. rdar://8777974 
llvm-svn: 121990
 2010-12-16 19:11:16 +00:00
Daniel Dunbar
471378a4ab MC/Expr: Add a doxyment. 
llvm-svn: 121988
 2010-12-16 18:36:25 +00:00
Daniel Dunbar
d6fdf76758 Oops, didn't mean to ignore .gitignore. 
llvm-svn: 121985
 2010-12-16 17:51:14 +00:00
Daniel Dunbar
2277f06687 MC/Mach-O: Lift some MachObjectWriter arguments into the target specific 
interface.

llvm-svn: 121981
 2010-12-16 17:21:02 +00:00
Michael J. Spencer
08149893d3 llvm-dis: Simplify MemoryBuffer usage. 
llvm-svn: 121975
 2010-12-16 16:23:38 +00:00
Michael J. Spencer
41145115c2 Fix whitespace. 
llvm-svn: 121974
 2010-12-16 16:23:30 +00:00
Daniel Dunbar
5fee4f6862 MC/Mach-O: Stub out explicit MCMachObjectTargetWriter interface. 
llvm-svn: 121973
 2010-12-16 16:09:19 +00:00
Daniel Dunbar
93dc10ffcb Fix indentation (per style guide). 
llvm-svn: 121972
 2010-12-16 16:08:43 +00:00
Daniel Dunbar
636e690f58 MC/Mach-O: Move createMachObjectWriter into MCMachObjectWriter.h. 
llvm-svn: 121971
 2010-12-16 16:08:33 +00:00
Daniel Dunbar
af109884b9 MC/Mach-O: Use fixup info instead of hard coded list. 
llvm-svn: 121970
 2010-12-16 15:42:31 +00:00
Daniel Dunbar
791c24f14a build: Fix ONLY_TOOLS to not build lto etc. unless specified. 
llvm-svn: 121969
 2010-12-16 15:42:26 +00:00
Daniel Dunbar
5a1b90fce5 Add some more .gitignore entries. 
llvm-svn: 121968
 2010-12-16 15:42:18 +00:00
Frits van Bommel
56dc4fc838 Fix a bug in the loop in JumpThreading::ProcessThreadableEdges() where it could falsely produce a MultipleDestSentinel value if the first predecessor ended with an 'indirectbr'. If that happened, it caused an unnecessary FindMostPopularDest() call. 
This wasn't a correctness problem, but it broke the fast path for single-predecessor blocks.

llvm-svn: 121966
 2010-12-16 12:16:00 +00:00
Duncan Sands
22de496ae3 Speculatively revert commit 121905 since it looks like it might have broken the 
dragonegg self-host buildbot.  Original commit message:

Add an InstCombine transform to recognize instances of manual overflow-safe addition
(performing the addition in a wider type and explicitly checking for overflow), and
fold them down to intrinsics.  This currently only supports signed-addition, but could
be generalized if someone works out the magic constant formulas for other operations.

llvm-svn: 121965
 2010-12-16 09:40:54 +00:00
Daniel Dunbar
f89af71fb9 Fix some compiler warnings. 
llvm-svn: 121959
 2010-12-16 04:36:42 +00:00
Michael J. Spencer
86f6a9ac6e MemoryBuffer now return an error_code and returns a OwningPtr<MemoryBuffer> via an out parm. 
llvm-svn: 121958
 2010-12-16 03:29:14 +00:00
Michael J. Spencer
fc6f7ab8c7 Add .gitignore. I chose not to dump the svn ignore list into this because most 
of the entries there are useless for out of source builds.

llvm-svn: 121955
 2010-12-16 03:25:38 +00:00
Daniel Dunbar
fc14f1e5f6 MC: Move target specific fixup info descriptors to TargetAsmBackend instead of 
the MCCodeEmitter, which seems like a better organization.
 - Also, cleaned up some magic constants while in the area.

llvm-svn: 121953
 2010-12-16 03:20:06 +00:00
Jason W Kim
2f4a8d7553 1. ARM/MC/ELF: A few more ELF relocs for .o 
2. Fixed EmitLocalCommonSymbol for ELF (Yes, they exist. :)
   Test added.

llvm-svn: 121951
 2010-12-16 03:12:17 +00:00
Daniel Dunbar
8ab9be2005 MC: Make TargetAsmBackend available to the AsmStreamer. 
- Treaty talks on the non-proliferation of MC objects broke down.

llvm-svn: 121949
 2010-12-16 03:05:59 +00:00
Daniel Dunbar
b5ea5a74f9 MC: Split MCFixupKindInfo out into its own header. 
llvm-svn: 121948
 2010-12-16 03:05:53 +00:00
Daniel Dunbar
fc4b79c9e8 MC: Remove a FIXME I no longer agree with. 
llvm-svn: 121947
 2010-12-16 03:05:46 +00:00
Dan Gohman
8540450279 Update a comment. 
llvm-svn: 121946
 2010-12-16 02:55:10 +00:00
Dan Gohman
29a260015a -enable-tbaa is on by default now. 
llvm-svn: 121945
 2010-12-16 02:53:48 +00:00
Dan Gohman
e106936414 Make memcpyopt TBAA-aware. 
llvm-svn: 121944
 2010-12-16 02:51:19 +00:00
NAKAMURA Takumi
b542a59c37 lib/Support/regexec.c: Let Regex LLP64-aware. 
On LLP64 Win64, 'states1' (for small version) was expanded to 'char *' for large version. Thus small version would be mischosen when nstates > 32 regardless of sizeof(long) on Win64.

llvm-svn: 121942
 2010-12-16 01:48:15 +00:00
Matt Beaumont-Gay
9b5939da47 Delete an extra "Imm5 = ", caught by GCC's -Wsequence-point but not by Clang 
(see PR4579).

llvm-svn: 121939
 2010-12-16 01:34:26 +00:00
Jakob Stoklund Olesen
ae68a4eb6d Add IntervalMapOverlaps - An iterator for overlapping intervals in two 
IntervalMaps.

The IntervalMaps can have different template parameters, but the KeyT and Traits
types must be the same.

Tests are forthcoming.

llvm-svn: 121935
 2010-12-16 01:18:29 +00:00
Bill Wendling
c22ad4d7ae Remove fixup_arm_thumb_ldst. The code was never calling the "fixup" stuff for 
it. I.e., it was always an immediate value.

llvm-svn: 121932
 2010-12-16 00:50:33 +00:00
Bill Wendling
6ce0807502 Add tSpill and tRestore to the opcodes to replace with tSTRi and tLDRi 
respectively.

It may be a bug that these opcodes are getting this far into machine code
generation.

llvm-svn: 121931
 2010-12-16 00:49:54 +00:00
Bill Wendling
448cd7f1bb Add encodings for Thumb1 Spill and Restore pseudos. 
llvm-svn: 121929
 2010-12-16 00:38:41 +00:00
Jason W Kim
529d762fff Fix elf-dump --dump-section-data for .bss section 
llvm-svn: 121927
 2010-12-16 00:15:10 +00:00
Dan Gohman
b9583fff47 Enable TBAA by default. 
llvm-svn: 121923
 2010-12-15 23:58:44 +00:00
Dan Gohman
a2fd4f2e22 Preserve TBAA tags when doing load PRE. 
llvm-svn: 121921
 2010-12-15 23:53:55 +00:00
Jim Grosbach
84c2b29b58 Thumb1 had two patterns for the same load-from-constant-pool instruction. 
Canonicalize on tLDRpci and remove tLDRcp.

llvm-svn: 121920
 2010-12-15 23:52:36 +00:00
Eric Christopher
339499f8f3 Don't handle -arm-long-calls in fast isel for now. 
llvm-svn: 121919
 2010-12-15 23:47:29 +00:00
Jakob Stoklund Olesen
1811e4cb20 Start using SplitKit and MachineLoopRanges in RegAllocGreedy in preparation of 
live range splitting around loops guided by register pressure.

So far, trySplit() simply prints a lot of debug output.

llvm-svn: 121918
 2010-12-15 23:46:13 +00:00
Jakob Stoklund Olesen
d40af5ffbd Add MachineLoopRanges analysis. 
A MachineLoopRange contains the intervals of slot indexes covered by the blocks
in a loop. This representation of the loop blocks is more efficient to compare
against interfering registers during register coalescing.

llvm-svn: 121917
 2010-12-15 23:41:23 +00:00
Bill Wendling
63ebdf4786 If we're changing the frame register to a physical register other than SP, we 
need to use tLDRi and tSTRi instead of tLDRspi and tSTRspi respectively.

llvm-svn: 121915
 2010-12-15 23:32:27 +00:00
Bill Wendling
ed6c88ead9 Whitespace cleanups. 
llvm-svn: 121914
 2010-12-15 23:31:24 +00:00
Bob Wilson
7e64a19960 Teach the Neon intrinsic generator to widen half-precision float types. 
This isn't currently used for anything but I ran into it when experimenting
with some changes, and it might be useful in the future.

llvm-svn: 121911
 2010-12-15 23:16:25 +00:00
Matt Beaumont-Gay
64b9dd6a4b Better fix for opt build 
llvm-svn: 121910
 2010-12-15 23:14:45 +00:00
Dan Gohman
4b073c7a7f Fix a typo that Bill spotted. 
llvm-svn: 121909
 2010-12-15 23:09:41 +00:00
Evan Cheng
72dca1ee17 Only rr forms of ADD*_DB are commutable. 
llvm-svn: 121908
 2010-12-15 22:57:36 +00:00
Rafael Espindola
37a22419ce Typo. 
llvm-svn: 121906
 2010-12-15 22:33:06 +00:00
Owen Anderson
aefeb448a9 Add an InstCombine transform to recognize instances of manual overflow-safe addition 
(performing the addition in a wider type and explicitly checking for overflow), and
fold them down to intrinsics.  This currently only supports signed-addition, but could
be generalized if someone works out the magic constant formulas for other operations.

Fixes <rdar://problem/8558713>.

llvm-svn: 121905
 2010-12-15 22:32:38 +00:00
Matt Beaumont-Gay
d59894002d Fix opt -Werror build 
llvm-svn: 121904
 2010-12-15 22:21:20 +00:00
Evan Cheng
68e1ed8752 Teach machine cse to commute instructions. 
llvm-svn: 121903
 2010-12-15 22:16:21 +00:00
Bob Wilson
438a9a1367 Add Neon VCVT instructions for f32 <-> f16 conversions. 
Clang is now providing intrinsics for these and so we need to support them
in the backend.  Radar 8068427.

llvm-svn: 121902
 2010-12-15 22:14:12 +00:00