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Author SHA1 Message Date
Bruno Cardoso Lopes
9b12ad069e Move some code around to open opportunity for more shuffle matching 
llvm-svn: 136201
 2011-07-27 00:56:37 +00:00
Bruno Cardoso Lopes
8830fde434 The vpermilps and vpermilpd have different behaviour regarding the 
usage of the shuffle bitmask. Both work in 128-bit lanes without
crossing, but in the former the mask of the high part is the same
used by the low part while in the later both lanes have independent
masks. Handle this properly and and add support for vpermilpd.

llvm-svn: 136200
 2011-07-27 00:56:34 +00:00
Bruno Cardoso Lopes
1adb959ee8 Remove more dead code! 
llvm-svn: 136199
 2011-07-27 00:56:27 +00:00
Eli Friedman
2da127e60a Fix AliasSetTracker so that it doesn't make any assumptions about instructions it doesn't know about (like the atomic instructions I'm adding). 
llvm-svn: 136198
 2011-07-27 00:46:46 +00:00
Evan Cheng
bff9934d9a Support .code32 and .code64 in X86 assembler. 
llvm-svn: 136197
 2011-07-27 00:38:12 +00:00
Devang Patel
e85a416d4e It is quiet possible that inlined function body is split into multiple chunks of consequtive instructions. But, there is not any way to describe this in .debug_inline accelerator table used by gdb. However, describe non contiguous ranges of inlined function body appropriately using AT_range of DW_TAG_inlined_subroutine debug info entry. 
llvm-svn: 136196
 2011-07-27 00:34:13 +00:00
Eric Christopher
db2a1cde87 Remove these two directories. The tests can be ported to dragonegg if 
they're still wanted.

llvm-svn: 136193
 2011-07-27 00:07:56 +00:00
Eric Christopher
a9f6746f91 Remove test/FrontendC, almost all of the tests have been migrated 
to clang now, the rest are in process (6) or have been deleted.

llvm-svn: 136191
 2011-07-26 23:49:39 +00:00
Jakob Stoklund Olesen
61ae16da49 Add support for multi-way live range splitting. 
When splitting global live ranges, it is now possible to split for
multiple destination intervals at once. Previously, we only had the main
and stack intervals.

Each edge bundle is assigned to a split candidate, and splitAroundRegion
will insert copies between the candidate intervals and the stack
interval as needed.

The multi-way splitting is used to split around compact regions when
enabled with -compact-regions. The best candidate register still gets
all the bundles it wants, but everything outside the main interval is
first split around compact regions before we create single-block
intervals.

Compact region splitting still causes some regressions, so it is not
enabled by default.

llvm-svn: 136186
 2011-07-26 23:41:46 +00:00
Jakob Stoklund Olesen
b003f0191d Print out the MBB live-in registers. 
llvm-svn: 136178
 2011-07-26 23:12:08 +00:00
Jakob Stoklund Olesen
3f729850d3 Eliminate copies of undefined values during coalescing. 
These copies would coalesce easily, but the resulting value would be
defined by a deleted instruction. Now we also remove the undefined value
number from the destination register.

This fixes PR10503.

llvm-svn: 136174
 2011-07-26 23:00:24 +00:00
Benjamin Kramer
32a2ce8416 Update test. 
llvm-svn: 136170
 2011-07-26 22:45:39 +00:00
Benjamin Kramer
bfc2dfe3f7 Add a neat little two's complement hack for x86. 
On x86 we can't encode an immediate LHS of a sub directly. If the RHS comes from a XOR with a constant we can
fold the negation into the xor and add one to the immediate of the sub. Then we can turn the sub into an add,
which can be commuted and encoded efficiently.

This code is generated for __builtin_clz and friends.

llvm-svn: 136167
 2011-07-26 22:42:13 +00:00
Bruno Cardoso Lopes
e53bb853ea Recognize unpckh* masks and match 256-bit versions. The new versions are 
different from the previous 128-bit because they work in lanes.
Update a few comments and add testcases

llvm-svn: 136157
 2011-07-26 22:03:40 +00:00
Dan Gohman
709e6c8722 Delete unnecessarily cautious LastCALLSEQ code. 
llvm-svn: 136156
 2011-07-26 22:00:59 +00:00
Jim Grosbach
23c317b5a1 ARM rot_imm printing adjustment. 
Allow the rot_imm operand to be optional. This sets the stage for refactoring
away the "rr" versions from the multiclasses and replacing them with Pat<>s.

llvm-svn: 136154
 2011-07-26 21:44:37 +00:00
Jim Grosbach
24aa0e7c2e ARM cleanup of rot_imm encoding. 
Start of cleaning this up a bit. First step is to remove the encoder hook by
storing the operand as the bits it'll actually encode to so it can just be
directly used. Map it to the assembly source values 8/16/24 when we print it.

llvm-svn: 136152
 2011-07-26 21:28:43 +00:00
Eli Friedman
4e16c5341a Prevent x86-specific DAGCombine from creating nodes with illegal type (which could not be selected). Fixes a minor isel issue that was breaking the testcase from r136130. 
llvm-svn: 136148
 2011-07-26 21:02:58 +00:00
Evan Cheng
6908ac48bb Remove one last reference to Target in MC library. 
llvm-svn: 136145
 2011-07-26 20:57:44 +00:00
Owen Anderson
cc4c746c65 Split am2offset into register addend and immediate addend forms, necessary for allowing the fixed-length disassembler to distinguish between SBFX and STR_PRE. 
llvm-svn: 136141
 2011-07-26 20:54:26 +00:00
Nicolas Geoffray
63bc7781f3 Update generated code to use new API of GetElementPtrInst::Create. 
llvm-svn: 136138
 2011-07-26 20:52:25 +00:00
Jim Grosbach
906ecb46ed FileCheck'ize test. 
llvm-svn: 136135
 2011-07-26 20:49:44 +00:00
Bill Wendling
470df5ce10 Fix a typo. 
llvm-svn: 136133
 2011-07-26 20:42:28 +00:00
Jim Grosbach
3c09190b9f Fix over-zealous rename from r136095. 
llvm-svn: 136132
 2011-07-26 20:41:24 +00:00
Eli Friedman
8779017138 XFAIL this test while I investigate it; it's failing for an unexpected reason. 
llvm-svn: 136131
 2011-07-26 20:41:03 +00:00
Eli Friedman
e52bee3cc9 Add obvious missing case to switch. PR10497. 
llvm-svn: 136130
 2011-07-26 20:38:49 +00:00
Eli Friedman
22e4c4d12d Fix a couple minor mistakes pointed out by Bill in adding 'fence' instruction. 
llvm-svn: 136124
 2011-07-26 20:24:06 +00:00
Evan Cheng
52a35d33ff Fix llvm-mc target detection code to match llc. 
llvm-svn: 136115
 2011-07-26 19:02:16 +00:00
Andrew Trick
0219419a01 Updating stale documentation on regalloc modes. 
llvm-svn: 136112
 2011-07-26 18:31:49 +00:00
Bill Wendling
b09ac9d7ec Use the correct for for the version. It's little endian and my brain is 
obviously big endian. :-)
PR10502

llvm-svn: 136111
 2011-07-26 18:31:41 +00:00
Jim Grosbach
8e642b2b18 ARM diagnostics for ldrexd/stredx out of order paired register operands. 
llvm-svn: 136110
 2011-07-26 18:25:39 +00:00
Bruno Cardoso Lopes
a493ad3938 Remove now unused patterns. 0 insertions(+), 98 deletions(-) 
llvm-svn: 136109
 2011-07-26 18:22:39 +00:00
Bruno Cardoso Lopes
b24e958ffb Cleanup old matching for PUNPCK* variants 
llvm-svn: 136108
 2011-07-26 18:22:27 +00:00
Devang Patel
5589e89f0c While extracting lexical scopes from machine instruction stream, work on one machine basic block at a time. 
llvm-svn: 136106
 2011-07-26 18:09:53 +00:00
Jim Grosbach
7b56b1cf0e ARM parsing and encoding tests for load/store exclusive instructions. 
llvm-svn: 136105
 2011-07-26 18:07:21 +00:00
Jim Grosbach
4681ef2468 ARM fix for LDREX source register encoding. 
rdar://9842203

llvm-svn: 136102
 2011-07-26 17:44:46 +00:00
Andrew Trick
ae93f1bf46 SCEV: Added a data structure for storing not-taken info per loop 
exit. Added an interfaces for querying either the loop's exact/max
backedge taken count or a specific loop exit's not-taken count.

llvm-svn: 136100
 2011-07-26 17:19:55 +00:00
Duncan Sands
8b264d3264 Strip trailing whitespace. 
llvm-svn: 136099
 2011-07-26 17:19:30 +00:00
Jim Grosbach
6fbee17fef ARM assembly parsing and encoding for SWP[B] instructions. 
llvm-svn: 136098
 2011-07-26 17:15:11 +00:00
Jim Grosbach
ebe2f7ed93 ARM SWP instructions store, too, not just load. 
llvm-svn: 136096
 2011-07-26 17:11:05 +00:00
Jim Grosbach
3cd3217e6c Clean up the ARM asm parser a bit. 
No intendeded functional change. Just cleaning up a bit to make things more
self-consistent in layout and style.

llvm-svn: 136095
 2011-07-26 17:10:22 +00:00
Jim Grosbach
cba0d16334 ARM fix asm parsing range check for [0,31] immediates. 
llvm-svn: 136091
 2011-07-26 16:44:05 +00:00
Jim Grosbach
d3152480f2 ARM parsing and encoding for SVC instruction. 
llvm-svn: 136090
 2011-07-26 16:24:27 +00:00
Jim Grosbach
422ac2fc64 ARM assembly parsing and encoding tests for SUB instruction. 
llvm-svn: 136089
 2011-07-26 15:44:05 +00:00
Jim Grosbach
3efad526c2 Update ARM STM tests. Fix check: prefix for diagnostic tests. 
llvm-svn: 136088
 2011-07-26 15:41:22 +00:00
Duncan Sands
0a14a12b51 Teach the Triple class about kfreebsd (FreeBSD kernel with 
a GNU userspace).

llvm-svn: 136085
 2011-07-26 15:30:04 +00:00
Rafael Espindola
a4148a5a84 Add LLVMAddAlwaysInlinerPass to the C API. 
llvm-svn: 136083
 2011-07-26 15:23:23 +00:00
Rafael Espindola
d7295c15ab LLVM 3.0 is here, remove old do nothing method. 
llvm-svn: 136082
 2011-07-26 15:17:32 +00:00
Duncan Sands
f74e5f1322 SrcDef is only written and never read. Remove it. 
llvm-svn: 136080
 2011-07-26 15:05:06 +00:00
Duncan Sands
52f6e018e2 Add helper function for getting true/false constants in a uniform 
way for i1 and vector of i1 types.  Use these to make some code
more self-documenting.

llvm-svn: 136079
 2011-07-26 15:03:53 +00:00