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Commit Graph

57681 Commits

Author SHA1 Message Date
Dan Gohman
8428b7f9a0 Fix a typo.
llvm-svn: 97144
2010-02-25 16:51:31 +00:00
Dan Gohman
a34a47406d Clarify the description of pointer types, and move the
address space content to its own paragraph.

llvm-svn: 97143
2010-02-25 16:50:07 +00:00
Dan Gohman
a15e497d94 Teach the constant folder about union types.
llvm-svn: 97142
2010-02-25 16:45:19 +00:00
Dan Gohman
f42f098d1d Remove code which assumes it knows how vectors are stored in memory.
llvm-svn: 97141
2010-02-25 16:05:33 +00:00
Dan Gohman
014104bcee Add more information to the getSizeOf comment.
llvm-svn: 97140
2010-02-25 15:55:28 +00:00
Dan Gohman
fe70c08c09 Remove this paragraph. Vectors may not always have the same layout as
arrays now.

llvm-svn: 97139
2010-02-25 15:53:42 +00:00
Dan Gohman
084112437d Revert r97064. Duncan pointed out that bitcasts are defined in
terms of store and load, which means bitcasting between scalar
integer and vector has endian-specific results, which undermines
this whole approach.

llvm-svn: 97137
2010-02-25 15:20:39 +00:00
Nick Lewycky
3fb5927aea Make the side-numbering of instructions used by metadata (which is needed to
keep track of instructions that return void) per-function. This fixes PR5278.

This breaks backwards compatibility with the metadata format. That's okay
because we haven't released the metadata bitcode yet.

llvm-svn: 97132
2010-02-25 08:30:17 +00:00
Chris Lattner
ea2fcbcd28 Implement the first half of redundancy factoring: efficiently
splitting all the patterns under scope nodes into equality sets
based on their first node.  The second step is to rewrite the
graph info a form that exposes the sharing.  Before I do this, 
I want to redesign the Scope node.

llvm-svn: 97130
2010-02-25 07:45:24 +00:00
Dan Gohman
52ed61204b Make LoopSimplify change conditional branches in loop exiting blocks
which branch on undef to branch on a boolean constant for the edge
exiting the loop. This helps ScalarEvolution compute trip counts for
loops.

Teach ScalarEvolution to recognize single-value PHIs, when safe, and
ForgetSymbolicName to forget such single-value PHI nodes as apprpriate
in ForgetSymbolicName.

llvm-svn: 97126
2010-02-25 06:57:05 +00:00
Chris Lattner
3c648b2491 factor the print method better.
llvm-svn: 97125
2010-02-25 06:53:39 +00:00
Nick Lewycky
c443274bc1 Dump the presence of attached metadata even if we don't know what it is. This
format is not parsable, even if the module is legal. To get parsable output,
dump the module instead of the function or smaller, since metadata kind are
attached to the module (not the context).

llvm-svn: 97124
2010-02-25 06:53:04 +00:00
Chris Lattner
c40658bc35 add methods to do equality checks and get hashes of Matchers
llvm-svn: 97123
2010-02-25 06:49:58 +00:00
Nick Lewycky
e0601cb7f8 Modernize comment.
llvm-svn: 97121
2010-02-25 06:39:10 +00:00
Nick Lewycky
772e9deb48 Correct whitespace.
llvm-svn: 97120
2010-02-25 06:38:51 +00:00
Jeffrey Yasskin
f073920691 Try r96559 for the third time. This time the shared library is only built if
--enable-shared is passed to configure.

llvm-svn: 97119
2010-02-25 06:34:33 +00:00
Sanjiv Gupta
11798e6c79 Each field of auxiliary debug entry is only 1 byte long.
llvm-svn: 97108
2010-02-25 03:54:49 +00:00
Johnny Chen
bbe3592817 Added tNOP for disassembly only.
llvm-svn: 97105
2010-02-25 03:28:51 +00:00
Dan Gohman
8a2f0a6cd1 Truncate from i64 to i32 is "free" on x86-32, because it involves
just discarding one of the registers.

llvm-svn: 97100
2010-02-25 03:04:36 +00:00
Scott Michel
54b21d97ec Revert this patch for the time being. Needs more testing.
llvm-svn: 97099
2010-02-25 02:32:54 +00:00
Johnny Chen
13b9bd479f Added tSVC and tTRAP for disassembly only.
llvm-svn: 97098
2010-02-25 02:21:11 +00:00
Chris Lattner
e875ef2dc9 formatting.
llvm-svn: 97097
2010-02-25 02:09:00 +00:00
Chris Lattner
02110cc687 rename fooMatcherNode to fooMatcher.
llvm-svn: 97096
2010-02-25 02:04:40 +00:00
Chris Lattner
07ef4b0d6d add some noop code to push it out of my tree.
llvm-svn: 97094
2010-02-25 01:57:41 +00:00
Chris Lattner
43351d1bfd rename PushMatcherNode -> ScopeMatcherNode to more accurately
reflect what it does.  Switch the sense of the Next and the Check
arms to be more logical.  No functionality change.

llvm-svn: 97093
2010-02-25 01:56:48 +00:00
Scott Michel
e76255b080 Large stack frame patch for the CellSPU: handle stack frames that exceed 8176
(511*16) bytes register displacement (D-form).

NOTE: This is a potential headache, given the SPU's local core limitations,
allowing the software developer to commit stack overrun suicide unknowingly.
Also, large SPU stack frames will cause code size explosion. But, one presumes
that the software developer knows what they're doing...

Contributed by Kalle.Raiskila@nokia.com, edited slightly before commit.

llvm-svn: 97091
2010-02-25 01:53:17 +00:00
Jeffrey Yasskin
0c926bb186 Filter the future all-of-llvm shared library out of the llvm-config
results.  I'm checking this in before the shared library so that I can
tell if it breaks anything on its own.

llvm-svn: 97089
2010-02-25 01:21:38 +00:00
Bill Wendling
1be1ea831e MC'ize padding when padding the ULEB128 value.
llvm-svn: 97087
2010-02-25 00:24:52 +00:00
Chris Lattner
35b88592cd add a fixme for an experiment that defeated me for the time being.
llvm-svn: 97081
2010-02-25 00:03:03 +00:00
Bill Wendling
e22e8b7621 LLVM puts padding bytes in the __gcc_except_tab section after the
GCC_except_table label but before the Lexception, which the FDE references.
This causes problems as the FDE does not point to the start of an LSDA chunk.

Use an unnormalized uleb128 for the call-site table length that includes the
padding.

llvm-svn: 97078
2010-02-24 23:34:35 +00:00
Chris Lattner
2b5db10d6e fix a bug I introduced by checking the wrong node's VT in OPC_CheckChildXType
llvm-svn: 97074
2010-02-24 22:52:52 +00:00
Chris Lattner
5ca790deef clean up various VT manipulations, patch by Micah Villmow! PR6337
llvm-svn: 97072
2010-02-24 22:44:06 +00:00
Jakob Stoklund Olesen
2b93d17560 Create a stack frame on ARM when
- Function uses all scratch registers AND
- Function does not use any callee saved registers AND
- Stack size is too big to address with immediate offsets.

In this case a register must be scavenged to calculate the address of a stack
object, and the scavenger needs a spare register or emergency spill slot.

llvm-svn: 97071
2010-02-24 22:43:17 +00:00
Chris Lattner
82f4b452d6 fix PR5954, patch by Roman Divacky.
I don't have a great way to test this myself (it's linux/bsd only), 
but Roman says it works. :)

llvm-svn: 97069
2010-02-24 22:33:41 +00:00
Bob Wilson
4ffb88d388 Check for comparisons of +/- zero when optimizing less-than-or-equal and
greater-than-or-equal SELECT_CCs to NEON vmin/vmax instructions.  This is
only allowed when UnsafeFPMath is set or when at least one of the operands
is known to be nonzero.

llvm-svn: 97065
2010-02-24 22:15:53 +00:00
Dan Gohman
424e8f22d0 Make getTypeSizeInBits work correctly for array types; it should return
the number of value bits, not the number of bits of allocation for in-memory
storage.

Make getTypeStoreSize and getTypeAllocSize work consistently for arrays and
vectors.

Fix several places in CodeGen which compute offsets into in-memory vectors
to use TargetData information.

This fixes PR1784.

llvm-svn: 97064
2010-02-24 22:05:23 +00:00
Chris Lattner
75062cedf7 convert cycle checker to smallptrset, add comments and make it
more elegant.

llvm-svn: 97059
2010-02-24 21:34:04 +00:00
Chris Lattner
fbafa903b5 revert david's patch which does not even build.
llvm-svn: 97057
2010-02-24 21:25:08 +00:00
David Greene
68c9ece3da Use a SmallPtrSet as suggested by Chris.
llvm-svn: 97056
2010-02-24 20:59:49 +00:00
Wesley Peck
63932c105a Adding function "lookupGCCName" to MBlazeIntrinsicInfo
Adding the function "lookupGCCName" to the MBlazeIntrinsicInfo
class to support the Clang MicroBlaze target.

Additionally, minor fixes which remove some unused PIC code 
(PIC is not supported yet in the MicroBlaze backend) and
removed some unused variables.

llvm-svn: 97054
2010-02-24 20:16:27 +00:00
Chris Lattner
071ecfc919 contract movechild+checktype into a new checkchild node, shrinking the
x86 table by 1200 bytes.

llvm-svn: 97053
2010-02-24 20:15:25 +00:00
Johnny Chen
41ab970549 Added Vector Swap (VSWPd and VSWPq) instructions for disassembly only.
A8.6.405

llvm-svn: 97052
2010-02-24 20:06:07 +00:00
Chris Lattner
119a10f065 split the movechild/record/moveparent -> recordchild optzn into a
movechild/record -> recordchild/movechild and 
movechild/moveparent -> noop xforms.  This slightly shrinks the tables
(x86 to 117454) and enables adding future improvements.

llvm-svn: 97051
2010-02-24 19:52:48 +00:00
Dan Gohman
4d65bd9c6a ConstantFoldInstOperands can theoretically return null if it
didn't fold anything.

llvm-svn: 97049
2010-02-24 19:31:47 +00:00
Dan Gohman
fa19b098dc Simplify this code; these casts aren't necessary.
llvm-svn: 97048
2010-02-24 19:31:06 +00:00
Chris Lattner
84308c9ca0 emit a histogram of the opcodes in comments.
llvm-svn: 97047
2010-02-24 19:17:12 +00:00
Jakob Stoklund Olesen
249caada0e Stay away from str <undef> in ARMLoadStoreOpt. This pass does not understand
<undef> operands, and can cause scavenger failures when it translates
<kill,undef> to <kill>.

llvm-svn: 97046
2010-02-24 18:57:08 +00:00
Johnny Chen
71bf8b1466 Fixed typo of opcodestr, should be "vst1", not "vld1".
llvm-svn: 97044
2010-02-24 18:00:40 +00:00
Dan Gohman
6aacf4728c Convert a few more backedge-taken count functions to use BackedgeTakenInfo.
llvm-svn: 97042
2010-02-24 17:31:30 +00:00
Daniel Dunbar
24c99e027e Speculatively revert r97011, "Re-apply 96540 and 96556 with fixes.", again in
the hopes of fixing PPC bootstrap.

llvm-svn: 97040
2010-02-24 17:05:47 +00:00