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Author SHA1 Message Date
Jim Grosbach
6dd5433c5c Refactor away tSpill and tRestore pseudos in ARM backend. 
The tSpill and tRestore instructions are just copies of the tSTRspi and
tLDRspi instructions, respectively. Just use those directly instead.

llvm-svn: 134092
 2011-06-29 20:26:39 +00:00
Eric Christopher
646312db05 Add a TODO for the Alpha port inline asm constraints. 
llvm-svn: 134089
 2011-06-29 19:41:27 +00:00
Eric Christopher
8e69ef8e77 Move Alpha from getRegClassForInlineAsmConstraint to 
getRegForInlineAsmConstraint.

Part of rdar://9643582

llvm-svn: 134088
 2011-06-29 19:40:01 +00:00
Eric Christopher
f04ac137f3 Update comment for getRegForInlineAsmConstraint for Mips. 
llvm-svn: 134087
 2011-06-29 19:33:04 +00:00
Eric Christopher
67d2fdd4a8 Move the Blackfin port away from getRegClassForInlineAsmConstraint by 
creating a few specific register classes.

Part of rdar://9643582

llvm-svn: 134086
 2011-06-29 19:30:29 +00:00
Eric Christopher
c28587a5ff Remove getRegClassForInlineAsmConstraint from MBlaze. Add a TODO comment 
for the port.

Part of rdar://9643582

llvm-svn: 134085
 2011-06-29 19:12:24 +00:00
Eric Christopher
82c3bcfb14 Remove getRegClassForInlineAsmConstraint for Mips. 
Part of rdar://9643582

llvm-svn: 134084
 2011-06-29 19:04:31 +00:00
Eric Christopher
c1c4011fcc Remove getRegClassForInlineAsmConstraint from sparc. 
Part of rdar://9643582

llvm-svn: 134083
 2011-06-29 18:53:10 +00:00
Eric Christopher
ef4ee8ac18 Move XCore from getRegClassForInlineAsmConstraint to 
getRegForInlineAsmConstraint.

Part of rdar://9643582

llvm-svn: 134080
 2011-06-29 17:53:29 +00:00
Eric Christopher
3cd31a95dd Use getRegForInlineAsmConstraint instead of custom defining regclasses 
via vectors.

Part of rdar://9643582

llvm-svn: 134079
 2011-06-29 17:23:50 +00:00
Evan Cheng
91e568589d Add missing operand. rdar://9694169 
llvm-svn: 134078
 2011-06-29 17:14:00 +00:00
Chad Rosier
fc7dc596a4 Temporarily revert r134057: "Let simplify cfg simplify bb with only debug and 
lifetime intrinsics" due to buildbot failures.

llvm-svn: 134071
 2011-06-29 16:22:11 +00:00
Jim Grosbach
88387d64d6 Asm parser range checking on .<size> <value> directives. 
For example, ".byte 256" would previously assert() when emitting an object
file. Now it generates a diagnostic that the literal value is out of range.

rdar://9686950

llvm-svn: 134069
 2011-06-29 16:05:14 +00:00
Benjamin Kramer
d97872524b Don't depend on the optimization reverted in r134067. 
llvm-svn: 134068
 2011-06-29 14:07:18 +00:00
Benjamin Kramer
cc91642a94 Revert a part of r126557 which could create unschedulable DAGs. 
llvm-svn: 134067
 2011-06-29 13:47:25 +00:00
Francois Pichet
f9f38d8d73 Change AsmName's type from StringRef to std::string. AsmName was pointing to a temporary string object that was destroyed. This is undefined behavior and MSVC didn't like it. 
This fixes over 300+ failing tests on MSVC.
Credit for this fix goes to chapuni.

llvm-svn: 134064
 2011-06-29 11:25:34 +00:00
Rafael Espindola
e9e560eb37 Let simplify cfg simplify bb with only debug and lifetime intrinsics. 
llvm-svn: 134057
 2011-06-29 05:25:47 +00:00
NAKAMURA Takumi
63570a1cf3 Fix CMake build. 
llvm-svn: 134055
 2011-06-29 03:26:17 +00:00
Andrew Trick
bc666880ad indvars -disable-iv-rewrite: just because SCEV ignores casts doesn't 
mean they can be removed.

llvm-svn: 134054
 2011-06-29 03:13:40 +00:00
Jakob Stoklund Olesen
fbf3ec7692 Revert r134047 while investigating a llvm-gcc-i386-linux-selfhost 
miscompile.

llvm-svn: 134053
 2011-06-29 02:03:36 +00:00
Evan Cheng
b4dc8bdd22 Sink SubtargetFeature and TargetInstrItineraries (renamed MCInstrItineraries) into MC. 
llvm-svn: 134049
 2011-06-29 01:14:12 +00:00
Evan Cheng
baefa5a6ee Trim include 
llvm-svn: 134048
 2011-06-29 00:35:31 +00:00
Jakob Stoklund Olesen
db62d3a5d0 Rewrite RAGreedy::splitAroundRegion, now with cool ASCII art. 
This function has to deal with a lot of special cases, and the old
version got it wrong sometimes. In particular, it would sometimes leave
multiple uses in the stack interval in a single block. That causes bad
code with multiple reloads in the same basic block.

The new version handles block entry and exit in a single pass. It first
eliminates all the easy cases, and then goes on to create a local
interval for the blocks with difficult interference. Previously, we
would only create the local interval for completely isolated blocks.

It can happen that the stack interval becomes completely empty because
we could allocate a register in all edge bundles, and the new local
intervals deal with the interference. The empty stack interval is
harmless, but we need to remove a SplitKit assertion that checks for
empty intervals.

llvm-svn: 134047
 2011-06-29 00:24:24 +00:00
Daniel Dunbar
8537fc79e1 build/Darwin: Fix epic typo fail. 
llvm-svn: 134036
 2011-06-28 22:30:17 +00:00
NAKAMURA Takumi
5db2c1243c Fix a CMake warning, following up to r134008. 
llvm-svn: 134033
 2011-06-28 21:46:21 +00:00
Evan Cheng
40c31162b8 Unbreak every backend. 
llvm-svn: 134031
 2011-06-28 21:33:11 +00:00
Evan Cheng
65e7766262 Move CallFrameSetupOpcode and CallFrameDestroyOpcode to TargetInstrInfo. 
llvm-svn: 134030
 2011-06-28 21:14:33 +00:00
Evan Cheng
b83b307ae8 Hide more details in tablegen generated MCRegisterInfo ctor function. 
llvm-svn: 134027
 2011-06-28 20:44:22 +00:00
Evan Cheng
61530114d5 Add MCInstrInfo registeration machinery. 
llvm-svn: 134026
 2011-06-28 20:29:03 +00:00
Evan Cheng
a115f77785 Merge XXXGenRegisterNames.inc into XXXGenRegisterInfo.inc 
llvm-svn: 134024
 2011-06-28 20:07:07 +00:00
Evan Cheng
4a169be530 - Rename TargetInstrDesc, TargetOperandInfo to MCInstrDesc and MCOperandInfo and 
sink them into MC layer.
- Added MCInstrInfo, which captures the tablegen generated static data. Chang
TargetInstrInfo so it's based off MCInstrInfo.

llvm-svn: 134021
 2011-06-28 19:10:37 +00:00
Jakob Stoklund Olesen
7d3e1553d2 Clean up the handling of the x87 fp stack to make it more robust. 
Drop the FpMov instructions, use plain COPY instead.

Drop the FpSET/GET instruction for accessing fixed stack positions.
Instead use normal COPY to/from ST registers around inline assembly, and
provide a single new FpPOP_RETVAL instruction that can access the return
value(s) from a call. This is still necessary since you cannot tell from
the CALL instruction alone if it returns anything on the FP stack. Teach
fast isel to use this.

This provides a much more robust way of handling fixed stack registers -
we can tolerate arbitrary FP stack instructions inserted around calls
and inline assembly. Live range splitting could sometimes break x87 code
by inserting spill code in unfortunate places.

As a bonus we handle floating point inline assembly correctly now.

llvm-svn: 134018
 2011-06-28 18:32:28 +00:00
Chad Rosier
6a40804696 Reinstate r133516 "Remove some unnecessary uses of c_str()." A trailing null 
character in std::string was causing failures for a few ObjC and Obj-C++ tests
when -flto was enabled.  Revision 133999 resolved this issue. Thanks Jay!
rdar://9685235
PR10210

llvm-svn: 134017
 2011-06-28 18:26:12 +00:00
Chad Rosier
8c0897147d Remove warning: 'c0' may be used uninitialized in this function. 
llvm-svn: 134014
 2011-06-28 17:26:57 +00:00
Jakob Stoklund Olesen
be778cece1 Print registers by name instead of by number. 
llvm-svn: 134013
 2011-06-28 17:24:32 +00:00
Andrew Trick
db3349cc0b cleanup: misleading comment. 
llvm-svn: 134010
 2011-06-28 16:45:04 +00:00
Andrew Trick
f8b6a62aa2 cmake: Our MSVC build does not support config-time build mode. 
llvm-svn: 134008
 2011-06-28 16:32:01 +00:00
Roman Divacky
736e37d9b9 Implement ISD::VAARG lowering on PPC32. 
llvm-svn: 134005
 2011-06-28 15:30:42 +00:00
Jay Foad
fa97b8b8fa PR10210: New method ConstantArray::getAsCString(). Use it in LTO to 
avoid getting embedded trailing null bytes in std::strings.

llvm-svn: 133999
 2011-06-28 08:24:19 +00:00
Andrew Trick
48f76db97a FileCheckify and prepare for -disable-iv-rewrite. 
llvm-svn: 133998
 2011-06-28 06:34:10 +00:00
Jakob Stoklund Olesen
55a0ce1776 FileCheckize a couple of tests. 
Also and add a test for popping dead return values and avoid testing the
spill precision.

llvm-svn: 133997
 2011-06-28 06:25:03 +00:00
Andrew Trick
9be3481cbd Cleanup. Fix a stupid variable name. 
llvm-svn: 133996
 2011-06-28 05:44:06 +00:00
Andrew Trick
1fcf6615c4 Cleanup. Fix a stupid variable name. 
llvm-svn: 133995
 2011-06-28 05:41:52 +00:00
Andrew Trick
4ac5dd5154 SCEVExpander: give new insts a name that identifies the reponsible pass. 
llvm-svn: 133992
 2011-06-28 05:07:32 +00:00
Andrew Trick
c7b3d222cf whitespace 
llvm-svn: 133991
 2011-06-28 05:04:16 +00:00
Nick Lewycky
8bdfa54742 Fix typo in comment. 
llvm-svn: 133990
 2011-06-28 03:57:31 +00:00
Rafael Espindola
0248022cce Fix cmake build. 
llvm-svn: 133989
 2011-06-28 03:17:03 +00:00
Andrew Trick
eb9ed2c82e indvars --disable-iv-rewrite: sever ties with IVUsers. 
llvm-svn: 133988
 2011-06-28 03:01:46 +00:00
Andrew Trick
9f6946c3a1 indvars --disable-iv-rewrite: Defer evaluating s/zext until SCEV 
evaluates all other IV exprs.

llvm-svn: 133982
 2011-06-28 02:49:20 +00:00
Chandler Carruth
46b0f79168 Fix CMake build by removing this now dead file. 
llvm-svn: 133981
 2011-06-28 02:03:12 +00:00