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Author SHA1 Message Date
Jakob Stoklund Olesen
e1dde7b05a Replace SplitKit SSA update with an iterative algorithm very similar to the one 
in SSAUpdaterImpl.h

Verifying live intervals revealed that the old method was completely wrong, and
we need an iterative approach to calculating PHI placemant. Fortunately, we have
MachineDominators available, so we don't have to compute that over and over
like SSAUpdaterImpl.h must.

Live-out values are cached between calls to mapValue() and computed in a greedy
way, so most calls will be working with very small block sets.

Thanks to Bob for explaining how this should work.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117599 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 20:34:52 +00:00
Jakob Stoklund Olesen
d68f458244 Make MachineDominators available for SplitEditor. We are going to need it for 
proper SSA updating.

This doesn't cause MachineDominators to be recomputed since we are already
requiring MachineLoopInfo which uses dominators as well.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117598 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 20:34:50 +00:00
Jakob Stoklund Olesen
26b92be922 Add a temporary command line option to verify machine code after each spill or 
split.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117597 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 20:34:47 +00:00
Dan Gohman
24a492683c Revert r117582, which reverted r77396. Searching PATH for a string 
which contains slashes is inconsistent with the meaning of PATH on
Unix-type platforms, and pretty surprising.

If the user has given a specific path to execute and we can't
execute it, we should fail and say why.  (Apparently the new
posix_spawn code doesn't always say why, but that's a separate
issue.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117596 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 20:34:33 +00:00
Devang Patel
8f6a281e97 Backward compatibility. Gracefully handle older versions of debug info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117595 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 20:08:13 +00:00
Rafael Espindola
787c33718d Add support for the .string directive. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117592 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 20:02:27 +00:00
Devang Patel
bc2bb9bbd0 Do not work too hard to find type's file info. There is a special field to record file info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117588 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 19:50:08 +00:00
Devang Patel
42d3a34575 Fix indentation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117586 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 19:40:13 +00:00
Rafael Espindola
1973d43792 Defined weak symbols should have non-zero value. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117585 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 19:39:57 +00:00
Mikhail Glushenkov
9f36e7389f llvmc: Make ExecuteProgram() look in the driver directory first. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117584 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 19:33:08 +00:00
Mikhail Glushenkov
8a5ff478db Remove an unnecessary check and an unnecessary temporary. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117583 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 19:33:04 +00:00
Mikhail Glushenkov
c61c7549a8 Revert r77396. 
Original commit message:

    On "Unix", if Program::FindProgramByName is given a name containing
    slashes, just go with it, regardless of whether it looks like it will
    be executable. This follows the behavior of sh(1) more closely.

It's better when behaviour is consistent between platforms. This change also
makes FindExecutable() behave as expected on unix-likes (before this commit, it
used to always succeed).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117582 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 19:32:58 +00:00
Mikhail Glushenkov
7289d06e48 Trailing whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117581 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 19:32:53 +00:00
Mikhail Glushenkov
3d0fe853d3 80-col violations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117580 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 19:32:47 +00:00
Devang Patel
a514a4e172 Do not rely on context to find file info. It is already provided as a separate field. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117577 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 19:14:28 +00:00
Rafael Espindola
29129728f1 Fix relocations with renamed symbols. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117575 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 19:08:03 +00:00
Benjamin Kramer
57ca3ccd45 Reduce malloc thrashing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117572 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 18:41:23 +00:00
Jim Grosbach
ab682a2090 PLD, PLDW, PLI encodings, plus refactor their use of addrmode2. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117571 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 18:34:10 +00:00
Rafael Espindola
f571f9a8fe Aliases defined with .symver should copy the binding of the symbols they alias. 
Move the existing patching for undefined symbols so that all the patching
is done in the same function.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117570 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 18:33:03 +00:00
Devang Patel
3cabc9d2c9 Technically DIFile scope should also be handled here. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117563 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 17:30:52 +00:00
Chris Lattner
c0ddfaa134 rearrange ParseRegisterList. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117560 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 17:23:41 +00:00
Chris Lattner
3a69756e39 refactor some code to simplify it, eliminating some owningptr's. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117559 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 17:20:03 +00:00
Bob Wilson
0f1db1a6c6 Teach the DAG combiner to fold a splat of a splat. Radar 8597790. 
Also do some minor refactoring to reduce indentation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117558 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 17:06:14 +00:00
Roman Divacky
f9d1752104 Use the IDVal directly as there's no need to convert to std::string. 
Pointed out by Chris!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117557 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 16:57:58 +00:00
Roman Divacky
50e7a78709 Implement .equ directive as a synonym to .set. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117553 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 16:22:58 +00:00
Duncan Sands
c1d7807fd5 Testcase for PR8494 (invalid bitcode crashing the bitcode reader). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117552 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 15:57:30 +00:00
Duncan Sands
f22b74608e Fix PR8494: when reading invalid bitcode, getTypeByID may return 
a null pointer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117551 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 15:47:26 +00:00
Rafael Espindola
aa8f1f0135 Implement R_X86_64_DTPOFF32. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117548 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 15:11:03 +00:00
Rafael Espindola
b4d1721eff Implement TLSLD. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117547 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 15:02:40 +00:00
Rafael Espindola
0cf15d61b7 Implement DTPOFF. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117546 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 14:48:59 +00:00
Oscar Fuentes
da9756365b Document LLVM_BUILD_TESTS, LLVM_INCLUDE_TESTS. New convenience target 
UnitTests for building all the unit tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117545 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 14:38:35 +00:00
Rafael Espindola
a264f72d3f Implement TLSLDM. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117544 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 14:37:09 +00:00
Rafael Espindola
a0a2f8734c Implement VK_GOTNTPOFF and switch RelocNeedsGOT to use VariantKind. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117543 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 14:22:44 +00:00
Mikhail Glushenkov
6d8ac5ac6d Reindent. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117538 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 08:25:44 +00:00
Evan Cheng
7e2fe9150f Re-commit 117518 and 117519 now that ARM MC test failures are out of the way. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117531 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 06:47:08 +00:00
Evan Cheng
9c3e8e28bd Disable most of the ARM vfp / NEON MC tests. These are too fragile to be useful. 
I'll work with Jim, Owen, and Bill on an alternative testing strategy until
the assembly parser is available.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117530 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 06:46:17 +00:00
NAKAMURA Takumi
abd9e01baf test/Transforms/SimplifyLibCalls/floor.ll: Mark as XFAIL:win32 due to lack of nearbyintf on MSVC. [PR8466] 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117529 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 06:46:04 +00:00
NAKAMURA Takumi
1c48377421 tools/llvm-shlib/Makefile: Support for FreeBSD and OpenBSD. 
Thanks to Yuri Gribov and Vladimir Kirillov!
*BSD(s) have environ(7) in CRT startup and cannot resolve "environ" at linking llvm.so.
environ(7) is used inlib/System/Unix/Program.inc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117528 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 06:45:57 +00:00
Chris Lattner
219ddf5626 clarify that not having the ".o file writing" feature 
doesn't mean that you can't get a .o file.  Apparently
this is confusing :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117523 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 02:22:02 +00:00
Evan Cheng
9e08ee5d16 Revert 117518 and 117519 for now. They changed scheduling and cause MC tests to fail. Ugh. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117520 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 02:00:25 +00:00
Evan Cheng
0104d9de04 - Assign load / store with shifter op address modes the right itinerary classes. 
- For now, loads of [r, r] addressing mode is the same as the
  [r, r lsl/lsr/asr #] variants. ARMBaseInstrInfo::getOperandLatency() should
  identify the former case and reduce the output latency by 1.
- Also identify [r, r << 2] case. This special form of shifter addressing mode
  is "free".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117519 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 01:49:06 +00:00
Evan Cheng
7c88cdcc3b Fix a major bug in operand latency computation. The use index must be adjusted 
by the number of defs first for it to match the instruction itinerary.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117518 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 01:46:29 +00:00
Dale Johannesen
e49406fd63 Fix pastos in handling of AVX cvttsd2si, PR8491. 
Bruno, please review, but I'm pretty sure this is right.
Patch by Alex Mac!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117514 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 00:35:54 +00:00
Owen Anderson
cfd0e1f3ae Add correct NEON encodings for vtbl and vtbx. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117513 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 00:18:46 +00:00
Owen Anderson
3eff4af42d Add correct NEON encodings for vext, vtrn, vuzp, and vzip. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117512 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-27 23:56:39 +00:00
Bob Wilson
1fa9d301a8 Fix compiler warnings about signed/unsigned comparisons. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117511 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-27 23:49:00 +00:00
Dale Johannesen
f514f52790 Teach InstCombine not to use Add and Neg on FP. PR 8490. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117510 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-27 23:45:18 +00:00
Evan Cheng
f40deed62f Shifter ops are not always free. Do not fold them (especially to form 
complex load / store addressing mode) when they have higher cost and
when they have more than one use.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117509 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-27 23:41:30 +00:00
Evan Cheng
de5fa932b9 Putting r117193 back except for the compile time cost. Rather than assuming fallthroughs uses all registers, just gather the union of all successor liveins. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117506 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-27 23:17:17 +00:00
Jim Grosbach
7e3383c007 Refactor ARM STR/STRB instruction patterns into STR{B}i12 and STR{B}rs, like 
the LDR instructions have. This makes the literal/register forms of the
instructions explicit and allows us to assign scheduling itineraries
appropriately. rdar://8477752

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117505 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-27 23:12:14 +00:00