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26660 Commits

Author SHA1 Message Date
Duncan Sands
ddfeabbab7 BasicAliasAnalysis and FunctionAttrs were both 
doing very similar pointer capture analysis.
Factor out the common logic.  The new version
is from FunctionAttrs since it does a better
job than the version in BasicAliasAnalysis

llvm-svn: 62461
 2009-01-18 12:19:30 +00:00
Mon P Wang
27ea1af89f Simplify extract element based on comments from Duncan Sands. 
llvm-svn: 62459
 2009-01-18 06:43:40 +00:00
Nick Lewycky
39fcb513ca Fix copy and pasted typos that prevented strtok_r, realloc, getenv, ungetc, 
putc, puts, perror, vscanf and vsscanf from getting annotations.

Add annotations for eight printf functions, memalign, pread and pwrite.

On Linux, llvm-gcc sometimes renames strdup, getc, putc, strtok_r, scanf and
sscanf. Match the alternate function names.

Fix a crash annotating opendir.

Don't mark fsetpos's second parameter as nocapture. It's supposed to be
captured.

Do mark fopen's path and mode strings as nocapture. Mark ferror as readonly,
but not fileno which may set errno.

llvm-svn: 62456
 2009-01-18 04:34:36 +00:00
Gabor Greif
6a02ecbd29 add a comment 
llvm-svn: 62436
 2009-01-18 00:27:21 +00:00
Gabor Greif
5608ce587b switch over some other methods from indices to iterators 
llvm-svn: 62430
 2009-01-17 19:46:01 +00:00
Devang Patel
4a7a53217b Remove tabs. 
llvm-svn: 62423
 2009-01-17 08:05:14 +00:00
Devang Patel
97cd6a4a7c Refactor code 
llvm-svn: 62421
 2009-01-17 08:01:33 +00:00
Bill Wendling
ce30a8cab9 Extend thi 
llvm-svn: 62415
 2009-01-17 07:40:19 +00:00
Evan Cheng
182d9c4c9f Fix MatchAddress bug that's preventing negative displacement from being folded in 64-bit mode. 
llvm-svn: 62413
 2009-01-17 07:09:27 +00:00
Devang Patel
2fc394ddfd Assign argument type to appropriate DIE. 
llvm-svn: 62412
 2009-01-17 06:57:25 +00:00
Devang Patel
24e250ee74 Remove dead code. 
llvm-svn: 62410
 2009-01-17 06:51:37 +00:00
Devang Patel
732220a09f Disable composite type debug info for now. 
llvm-svn: 62406
 2009-01-17 05:05:12 +00:00
Bill Wendling
ddd55bdfec Temporarily revert my last change. It is causing a bootstrap failure. 
llvm-svn: 62405
 2009-01-17 04:23:51 +00:00
Bill Wendling
d18c38c0f2 Implement a special algorithm for converting uint_to_fp for i32 values on 
X86. This code:

void f() {
  uint32_t x;
  float y = (float)x;
}

used to be:

     movl     %eax, -8(%ebp)
     movl     [2^52 double], -4(%ebp)
     movsd    -8(%ebp), %xmm0
     subsd    [2^52 double], %xmm0
     cvtsd2ss %xmm0, %xmm0

Is now:

   movsd        [2^52 double], %xmm0
   movsd        %xmm0, %xmm1
   movd         %ecx, %xmm2
   orps         %xmm2, %xmm1
   subsd        %xmm0, %xmm1
   cvtsd2ss     %xmm1, %xmm0

This is faster on X86. Note that there's an extra load of %xmm0 into %xmm1. That
will be fixed in a later coalescer fix.

llvm-svn: 62404
 2009-01-17 03:56:04 +00:00
Oscar Fuentes
ee36d9ce83 CMake: Add lib/Target/IA64/IA64Subtarget.cpp 
llvm-svn: 62394
 2009-01-17 01:50:32 +00:00
Gabor Greif
c379e7909b speed up iterative loop by using iterators. changes direction, but functionally equivalent 
if this works out, I'll change the others next.

llvm-svn: 62385
 2009-01-17 00:14:25 +00:00
Gabor Greif
20f36c51bd introduce typedef for complicated vector, and use it too 
llvm-svn: 62384
 2009-01-17 00:09:08 +00:00
Mon P Wang
563134282c Simplify extract element of a scalar to vector. 
llvm-svn: 62383
 2009-01-17 00:07:25 +00:00
Gabor Greif
0d0908d06a typo 
llvm-svn: 62377
 2009-01-16 23:08:50 +00:00
Evan Cheng
d7cc550900 Fix PPC ISD::Declare isel and eliminate the need for PPCTargetLowering::LowerGlobalAddress to check if isVerifiedDebugInfoDesc() is true. Given the recent changes, it would falsely return true for a lot of GlobalAddressSDNode's. 
llvm-svn: 62373
 2009-01-16 22:57:32 +00:00
Mikhail Glushenkov
b0aa02acee Support for multi-valued options in CommandLine 
Makes possible to specify options that take multiple arguments (a-la
-sectalign on Darwin). See documentation for details.

llvm-svn: 62372
 2009-01-16 22:54:19 +00:00
Dan Gohman
cb207179b1 Give IA64 a TargetSubtarget subclass, so that it can 
implement getSubtargetImpl.

llvm-svn: 62369
 2009-01-16 22:49:36 +00:00
Dan Gohman
3d0633627d Instead of adding dependence edges between terminator instructions 
and every other instruction in their blocks to keep the terminator
instructions at the end, teach the post-RA scheduler how to operate
on ranges of instructions, and exclude terminators from the range
of instructions that get scheduled.

Also, exclude mid-block labels, such as EH_LABEL instructions, and
schedule code before them separately from code after them. This
fixes problems with the post-RA scheduler moving code past
EH_LABELs.

llvm-svn: 62366
 2009-01-16 22:10:20 +00:00
Dan Gohman
9636e74701 If an anti-dependence uses a non-allocatable register, set AntiDepReg 
to 0, to ensure that the subsequent code doesn't try to break the
dependence.

llvm-svn: 62365
 2009-01-16 21:57:43 +00:00
Dan Gohman
4dc9f47c97 Use the getNode() accessor instead of accessing the Node 
member directly, which is private as of r55504.

llvm-svn: 62364
 2009-01-16 21:47:21 +00:00
Dan Gohman
733d817b4d Fix the check for an empty basic block to check for an empty SUnits 
array instead, since this is what the scheduler actually cares about.
And remove a check that is unnecessary, since it can assume that
SUnits isn't empty.

llvm-svn: 62362
 2009-01-16 21:37:14 +00:00
Chris Lattner
cfaf556999 new nodes should be added to the worklist, not old nodes. 
llvm-svn: 62359
 2009-01-16 21:15:56 +00:00
Devang Patel
9ecd23c14d Fix comments. 
llvm-svn: 62358
 2009-01-16 21:07:53 +00:00
Evan Cheng
c4d19d6e8c CreateVirtualRegisters does trivial copy coalescing. If a node def is used by a single CopyToReg, it reuses the virtual register assigned to the CopyToReg. This won't work for SDNode that is a clone or is itself cloned. Disable this optimization for those nodes or it can end up with non-SSA machine instructions. 
llvm-svn: 62356
 2009-01-16 20:57:18 +00:00
Chris Lattner
0354d30311 don't assert and die on out of range (undefined) shifts. This fixes 
PR3334.

llvm-svn: 62352
 2009-01-16 20:17:02 +00:00
Chris Lattner
5d1ed9ed1f Fix PR3335 by not turning a store to one address space into a store to another. 
llvm-svn: 62351
 2009-01-16 20:12:52 +00:00
Chris Lattner
59dfd7d4af reduce indentation by using early exits, no functionality change. 
llvm-svn: 62350
 2009-01-16 20:08:59 +00:00
Devang Patel
6f83d4b68f Use lightweight DebugInfo objects directly. 
llvm-svn: 62341
 2009-01-16 19:28:14 +00:00
Bill Wendling
c9e856fbfd Add support for non-zero __builtin_return_address values on X86. 
llvm-svn: 62338
 2009-01-16 19:25:27 +00:00
Evan Cheng
2932869ed4 Change isGVCompilationDisabled() semantics again. It should abort on any GV that's not constant whether it's "internal" or not. In a server / client environment, GV is returned in the same block of memory as code. However, the memory might not be writable. 
llvm-svn: 62336
 2009-01-16 19:14:49 +00:00
Gabor Greif
34a28dbecf use specialized accessor instead of plain getOperand(0) 
llvm-svn: 62330
 2009-01-16 18:40:27 +00:00
Devang Patel
627bb2afb9 Align source code. 
llvm-svn: 62328
 2009-01-16 18:01:58 +00:00
Dan Gohman
e4265cdbb9 Fix a "comparison between signed and unsigned integer expressions" 
warning.

llvm-svn: 62327
 2009-01-16 17:55:08 +00:00
Nick Lewycky
3f81059a01 Reinstate r60509 from Dale: 
Make the debugging dump be a full line.

llvm-svn: 62325
 2009-01-16 17:07:22 +00:00
Mikhail Glushenkov
49be18cfc6 Registry.h should not depend on CommandLine.h. 
Split Support/Registry.h into two files so that we have less to
recompile every time CommandLine.h is changed.

llvm-svn: 62312
 2009-01-16 07:02:28 +00:00
Mikhail Glushenkov
5000223556 Delete trailing whitespace. 
llvm-svn: 62307
 2009-01-16 06:53:46 +00:00
Evan Cheng
c58653bd6e ARMCompilationCallback should not save / restore vfp registers if vfp is not available. 
llvm-svn: 62299
 2009-01-16 02:16:37 +00:00
Devang Patel
434239cc4f Validate debug info values only if DwarfDebug is initialized. 
llvm-svn: 62298
 2009-01-16 02:15:14 +00:00
Evan Cheng
e7c9310d1b Clean up previous cast optimization a bit. Also make zext elimination a bit more aggressive: if it's not necessary to emit an AND (i.e. high bits are already zero), it's profitable to evaluate the operand at a different type. 
llvm-svn: 62297
 2009-01-16 02:11:43 +00:00
Devang Patel
befef54e67 Any debug info symbol is only valid if atleast one compile unit is seen. 
llvm-svn: 62294
 2009-01-16 01:49:46 +00:00
Dan Gohman
c5b1dbdb4e Initial hazard recognizer support in post-pass scheduling. This includes 
a new toy hazard recognizier heuristic which attempts to direct the
scheduler to avoid clumping large groups of loads or stores too densely.

llvm-svn: 62291
 2009-01-16 01:33:36 +00:00
Devang Patel
f0e1e4cc51 Do not stumble over forward declared struct member. 
llvm-svn: 62288
 2009-01-16 00:50:53 +00:00
Devang Patel
1ee58c7d8c Validate dbg_* intrinsics before lowering them. 
llvm-svn: 62286
 2009-01-15 23:41:32 +00:00
Mon P Wang
e235ba591f Added missing support to widen an operand from a bit convert. 
llvm-svn: 62285
 2009-01-15 22:43:38 +00:00
Dan Gohman
3e0dcbbd15 Generalize the HazardRecognizer interface so that it can be used 
to support MachineInstr-based scheduling in addition to
SDNode-based scheduling.

llvm-svn: 62284
 2009-01-15 22:18:12 +00:00