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16899a2056
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28507 Commits

Author SHA1 Message Date
Dan Gohman
16899a2056 Revert r72025. It is possible for clients to convert between signed types 
and pointer types safely if they only do so when the sizes are the same.
llvm-gcc is such a client.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72029 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-18 18:55:39 +00:00
Bill Wendling
805da894cf Revert last commit. It was wrong. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72026 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-18 18:21:03 +00:00
Dan Gohman
c7897e26a4 Add assertions to CastInst::getCastOpcode to catch attempted conversions 
between integers and pointers when the source type is marked signed,
since inttoptr and ptrtoint always use zero-extension when the destination
is larger than the source.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72025 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-18 18:18:57 +00:00
Bill Wendling
15ffc08267 Don't call RegionInlinedFnEnd if our optimization level isn't -O0. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72024 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-18 18:17:22 +00:00
Dale Johannesen
ca11dae4a4 Fill in the missing patterns for ADC and SBB. 
Some comment cleanup.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72022 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-18 17:44:15 +00:00
Douglas Gregor
071d73d67e termios.h contains the winsize structure we need to determine the 
width of a terminal. Don't try to get the width of a terminal if we
don't have this header.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72018 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-18 17:21:34 +00:00
Dan Gohman
a537bf83ed Rename UseTy to AccessTy, for consistency with getAccessType, and to 
avoid ambiguity with the word "use" in IVStrideUse.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72012 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-18 16:45:28 +00:00
Daniel Dunbar
8c562e2d25 Silence Release-Asserts warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72011 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-18 16:43:04 +00:00
Dan Gohman
10978bd591 Teach ScalarEvolution to recognize x^-1 in the case where non-demanded 
bits have been stripped out by instcombine.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72010 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-18 16:29:04 +00:00
Dan Gohman
0bac95e2e2 Delete a redundant 'else'. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72009 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-18 16:17:44 +00:00
Dan Gohman
8ea94524ed Fix ScalarEvolution::isLoopGuardedByCond to accept a null Loop*, for 
consistency with other routines that use a null Loop* to mean code
not contained by any loop.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72008 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-18 16:03:58 +00:00
Dan Gohman
5183caebc1 Minor code cleanups. Do more of the work before the if statements 
instead of within their controlling expressions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72007 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-18 15:58:39 +00:00
Dan Gohman
f78a978d46 Add assertion checks to the SCEV operator creation methods to catch 
type mismatches.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72006 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-18 15:44:58 +00:00
Dan Gohman
859b4824ee Make ScalarEvolution::isLoopGuardedByCond work even when the edge 
entering a loop is a non-split critical edge.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72004 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-18 15:36:09 +00:00
Dan Gohman
70a1fe7048 Add an isOne() utility function to ScalarEvolution, similar to isZero() 
and similar to ConstantInt's isOne().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72003 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-18 15:22:39 +00:00
Eli Friedman
96cd7af935 Tweak MemoryBuffer::getSTDIN so that it returns after the first EOF. 
It doesn't matter for piped input, but it's annoying when typing at the 
console.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71998 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-18 08:44:04 +00:00
Lang Hames
b0e519f2bf Prevented reg0 from being added to MBB live-in set, which was causing issues 
for PostRAScheduler. 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71991 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-17 23:50:36 +00:00
Jakob Stoklund Olesen
de67a51b66 Rename MachineVerifier pass to avoid command line collision. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71987 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-17 19:37:14 +00:00
Anton Korobeynikov
e4fdb8b8ff Mark rotl/rotr as expand. This generates pretty ugly code, but this is better than nothing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71976 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-17 10:16:28 +00:00
Anton Korobeynikov
aceb620de8 Typo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71975 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-17 10:15:22 +00:00
Jakob Stoklund Olesen
b5426457f0 Fix a missing def-flag on a Mips epilogue load. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71935 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-16 07:26:06 +00:00
Jakob Stoklund Olesen
f2c3f6a855 Remember to set def-flag on register loaded from stack slot in CellSPU. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71934 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-16 07:25:44 +00:00
Jakob Stoklund Olesen
44b27e5c75 Verify that explicit definitions in the TargetInstrDesc are matched by 
explicit register define operands.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71933 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-16 07:25:20 +00:00
Jakob Stoklund Olesen
d6fb97761e Allow redefinition of reserved registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71932 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-16 07:24:54 +00:00
Duncan Sands
0394c4fb3d Put back a bit of expensive checking logic that 
was overenthusiastically deleted in r70234.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71926 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-16 04:14:29 +00:00
Duncan Sands
e556720ea8 Pacify gcc-4.3, which suggests explicit braces here 
to avoid an ambiguous else.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71924 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-16 03:28:54 +00:00
Jakob Stoklund Olesen
48872e0d84 Pass to verify generated machine code. 
The following is checked:

* Operand counts: All explicit operands must be present.

* Register classes: All physical and virtual register operands must be
  compatible with the register class required by the instruction descriptor.

* Register live intervals: Registers must be defined only once, and must be
  defined before use.

The machine code verifier is enabled with the command-line option
'-verify-machineinstrs', or by defining the environment variable
LLVM_VERIFY_MACHINEINSTRS to the name of a file that will receive all the
verifier errors.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71918 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-16 00:33:53 +00:00
Bill Wendling
0310d768a1 Split out the DwarfDebug module from the DwarfWriter module. 
Again, no intendtional functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71854 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-15 09:23:25 +00:00
Bill Wendling
e428e21033 Mark class as hidden. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71850 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-15 06:55:26 +00:00
Evan Cheng
427a6b666b Fix PR4210. Rewritter should track and update kills of sub-registers as well. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71848 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-15 06:48:19 +00:00
Bill Wendling
bc0d23afae Move c'tor/d'tor to top of file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71828 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-15 01:18:50 +00:00
Bill Wendling
eb9072195c Split out the DwarfException class into its own file. No functionality change, 
though the classes have been marked with "VISIBILITY_HIDDEN".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71827 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-15 01:12:28 +00:00
Bill Wendling
88423eecd0 Split out the Dwarf writer stuff into separate files. This is a much more 
logical/sane approach to organizing all of the stuff that goes into writing out
DWARF information. Honestly? even this is too complex for what it's supposed to
be doing.

Trivia: It *looks* like there would be functionality changes, however there aren't!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71821 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-15 00:11:17 +00:00
Mike Stump
11adeed8b3 Reflow to fit 80-col. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71813 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-14 23:23:37 +00:00
Mike Stump
6726be6a67 Reflow to fit 80-col. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71812 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-14 23:22:47 +00:00
Owen Anderson
2b2c0d716a Down with static variables! 
Part one of many.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71785 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-14 19:17:24 +00:00
Mike Stump
a681515ee6 Tag blocks with DW_AT_APPLE_block. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71784 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-14 18:45:49 +00:00
Dale Johannesen
7616a4a189 Reuse existing getUnderlyingObject instead of 
adding another copy.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71783 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-14 18:41:18 +00:00
Bill Wendling
dc817b6f42 Non-functionality changes: 
- Reformatting.
- Use while() instead of do-while().
- Move simple constructors into .h file.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71782 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-14 18:26:15 +00:00
Bill Wendling
e66b291240 Clean up this file fixing 80-column violations, bad formatting, etc. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71781 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-14 18:16:46 +00:00
Bob Wilson
4bb3374b6d Revert r71744. I must not have understood this correctly, because the 
assertion is failing for some tests.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71779 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-14 18:08:41 +00:00
Dale Johannesen
bae7d6dbeb Use abs64 in one more place. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71775 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-14 16:47:34 +00:00
Lang Hames
a7c9deaa2b Fix for PR4124. Make TwoAddressFormPass::FindLastUseInMBB return the real last use. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71769 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-14 04:26:30 +00:00
Jim Grosbach
f957012866 Update the names of the exception handling sjlj instrinsics to 
llvm.eh.sjlj.* for better clarity as to their purpose and scope. Add
a description of llvm.eh.sjlj.setjmp to ExceptionHandling.html.
(llvm.eh.sjlj.longjmp documentation coming when that implementation is
added).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71758 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-14 00:46:35 +00:00
Dan Gohman
e340e84196 Add an assert to turn a segfault on an unsupported inline 
asm construct into an assertion failure.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71757 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-14 00:30:16 +00:00
Mike Stump
8cf6571ec0 Add dumping support for DW_AT_APPLE_isa and DW_AT_APPLE_block. 
Radar 6867696


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71750 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-14 00:03:51 +00:00
Bill Wendling
f59d10f1bc There's yet more ugliness (surprise!) in DebugInfo. This needs major reworking. 
Basically, there was a situation where it was getting an empty vector and doing
a .back() on that. Which isn't cool.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71746 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-13 23:55:49 +00:00
Bob Wilson
df1ed67890 The IfConverter::MergeBlocks method appears to be used only to merge a basic 
block with its unique predecessor.  Change the code to assert if that is not
the case, instead of trying to handle situations where the block has
multiple predecessors.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71744 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-13 23:54:13 +00:00
Jim Grosbach
2afb3b7251 Removing the HasBuiltinSetjmp flag and associated bits. Flagging the presence 
of exception handling builtin sjlj targets in functions turns out not to 
be necessary. Marking the intrinsic implementation in the .td file as 
defining all registers is sufficient to get the context saved properly by 
the containing function.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71743 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-13 23:50:53 +00:00
Bob Wilson
8308e8fae0 Revert a portion of Dan's change r71018 that I'm convinced is wrong. 
Dan was trying to catch the case where a basic block ends with a conditional
branch to the fall-through block.  In this case, all the instructions have
been moved out of FromBBI, leaving it empty.  It cannot end with a
conditional branch.  As the existing comment indicates, it will always fall
through to the next block.  If the block already had the next block (NBB)
listed as a successor, the preceding loop has a check for that and does not
remove it.  Thus, we need to check and add the successor only when it is
not already listed.

With Dan's change, the empty block often ends up with the fall-through
successor listed twice.  This exposed the problem in pr4195, where
CodePlacementOpt did not handle the same predecessor listed more than once.
It is also at least partially responsible for pr4202 and probably a similar
issue with Thumb branches being out of range.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71742 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-13 23:48:58 +00:00