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Author SHA1 Message Date
Jim Grosbach
662fb77687 tidy up trailing whitespace and an 80 column violation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112746 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-01 21:48:06 +00:00
Dan Gohman
b0a57210a4 Fix loop unswitching's assumption that a code path which either 
infinite loops or exits will eventually exit. This fixes PR5373.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112745 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-01 21:46:45 +00:00
Dale Johannesen
6e3665bcd0 Revert 112740, it broke some clang tests somehow... 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112744 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-01 21:36:44 +00:00
Jim Grosbach
5a4cbea312 cleanup per feedback. use a helper function for getting the first non-reserved 
physical register in a register class. Make sure to assert if the register
class is empty.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112743 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-01 21:34:41 +00:00
Jim Grosbach
269354e570 The register allocator shouldn't consider allocating reserved registers. PBQP version. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112742 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-01 21:23:03 +00:00
Jim Grosbach
067a648599 The register allocator shouldn't consider allocating reserved registers. 
r112728 did this for fast regalloc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112741 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-01 21:04:27 +00:00
Dale Johannesen
6a94cbb72e Add a few more missing MMX operations. This should be it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112740 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-01 21:03:03 +00:00
Chris Lattner
f57fcf7844 update the tutorial to use CreateFAdd to create fp operations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112733 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-01 20:09:20 +00:00
Jim Grosbach
1f758831cb The register allocator shouldn't consider allocating reserved registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112728 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-01 19:28:41 +00:00
Owen Anderson
c096704c4a Disable CorrelatedValuePropagation while I track down selfhost failures. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112727 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-01 19:20:46 +00:00
Jim Grosbach
07cb689d62 tidy up a few 80-column and trailing whitespace bits. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112726 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-01 19:16:29 +00:00
Bill Wendling
ee70d3b27f The output of opt -stats must be sent to stderr. Patch by NAKAMURA Takumi! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112724 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-01 18:32:56 +00:00
Owen Anderson
5627db6fb9 Tentatively add correlated value propagation to the set of standard passes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112723 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-01 18:30:15 +00:00
Owen Anderson
9bfa6fec06 JumpThreading keeps LazyValueInfo up to date, so we don't need to rerun it 
if we schedule another LVI-using pass afterwards.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112722 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-01 18:27:22 +00:00
Eric Christopher
4e68c7cca4 Add some more load types in. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112721 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-01 18:01:32 +00:00
Eric Christopher
adc581f5cb Speculatively revert 112699 and 112702, they seem to be causing 
self host errors on clang-x86-64.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112719 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-01 17:29:10 +00:00
Chris Lattner
f636aa9c7e have the makefiles check the llvm-config error code instead of charging 
on an producing weird link errors.  Patch by Yuri Gribov!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112714 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-01 16:11:17 +00:00
Chris Lattner
0b5b18340b dead code patrol 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112713 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-01 16:06:39 +00:00
Chris Lattner
14ab39e43f zap dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112712 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-01 16:04:34 +00:00
Chris Lattner
5bcb8a6112 temporarily revert r112664, it is causing a decoding conflict, and 
the testcases should be merged.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112711 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-01 16:00:50 +00:00
Chris Lattner
a51d89ce16 zap dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112708 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-01 15:44:05 +00:00
Chris Lattner
8861e275d0 remove dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112707 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-01 15:39:31 +00:00
Dan Gohman
d4c454317a Make tool_output_file's raw_ostream instance a member variable instead 
of a base class.

This makes it possible to unregister the file from FilesToRemove when
the file is done. Also, this eliminates the need for
formatted_tool_output_file.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112706 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-01 14:20:41 +00:00
Dan Gohman
41154114f6 Add an interface for unregistering a file from the FilesToRemove list. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112705 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-01 14:17:34 +00:00
Michael J. Spencer
2ad12a0e2a COFF: Update tests to reflect changes in last commit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112704 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-01 14:15:31 +00:00
Michael J. Spencer
4563704c21 COFF: Fix incorrect SCT_COMPLEX_TYPE_SHIFT. Add a few constants. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112703 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-01 14:09:36 +00:00
Duncan Sands
fb4e8ab200 Use the SSAUpdator to turn calls to eh.exception that are not in a 
landing pad into uses of registers rather than loads from a stack
slot.  Doesn't touch the 'orrible hack code - Bill needs to persuade
me harder :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112702 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-01 14:07:47 +00:00
Dan Gohman
e3955df639 Make the iterator form of erase return void, since it always succeeds, 
and since this is what std::map and std::set do.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112701 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-01 14:00:35 +00:00
Duncan Sands
f8ff40c059 Define LLVM_GLOBAL_VISIBILITY to be __declspec(dllexport) on 
windows systems.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112700 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-01 13:07:11 +00:00
Duncan Sands
4d588bceb0 If PrototypeValue is erased in the middle of using the SSAUpdator 
then the SSAUpdator may access freed memory.  Instead, simply pass
in the type and name explicitly, which is all that was used anyway.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112699 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-01 10:29:33 +00:00
Duncan Sands
248e7592b5 Add convenience class for working with eh.exception calls. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112698 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-01 09:26:00 +00:00
Dale Johannesen
64a4e9a94c Attempt to fix buildbot. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112697 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-01 05:19:06 +00:00
Chris Lattner
91abace4ef add a gross hack to work around a problem that Argiris reported 
on llvmdev: SRoA is introducing MMX datatypes like <1 x i64>,
which then cause random problems because the X86 backend is
producing mmx stuff without inserting proper emms calls.

In the short term, force off MMX datatypes.  In the long term,
the X86 backend should not select generic vector types to MMX
registers.  This is being worked on, but won't be done in time
for 2.8.  rdar://8380055


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112696 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-01 05:14:33 +00:00
Chris Lattner
54d24025d6 filecheckize 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112695 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-01 05:10:14 +00:00
Bruno Cardoso Lopes
56098f5d26 Use movlps, movlpd, movss and movsd specific nodes instead of pattern matching with movlp pattern fragment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112694 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-01 05:08:25 +00:00
Dan Gohman
191bd64a39 Revert 112442 and 112440 until the compile time problems introduced 
by 112440 are resolved.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112692 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-01 01:45:53 +00:00
Bruno Cardoso Lopes
9cfad89a68 minor change, simplify some logic 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112689 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-01 00:57:08 +00:00
Bruno Cardoso Lopes
e654b56eb1 Move some functions around so they can be used for some other to come function 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112687 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-01 00:51:36 +00:00
Dale Johannesen
c88d829c87 Add some MMX intrinsics that duplicate functionality 
available in normal llvm operators.  We aren't going to
use those for MMX any more because it's unsafe for the
optimizers to synthesize new MMX instructions.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112685 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-01 00:40:09 +00:00
Devang Patel
ae84d5b9ba Use absolute label for DW_AT_stmt_list if a target does not prefer offset here. 
This patch was developed on top of original patch by Artur Pietrek.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112678 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 23:50:19 +00:00
Dale Johannesen
a6d050df14 Testcase for llvm checkin 112674. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112675 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 23:43:55 +00:00
Benjamin Kramer
47b7efc082 Remove noisy semicolon. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112673 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 23:38:13 +00:00
Chris Lattner
2ac6e2354a licm is wasting time hoisting constant foldable operations, 
instead of hoisting them, just fold them away.  This occurs in the
testcase for PR8041, for example.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112669 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 23:00:16 +00:00
Kevin Enderby
232ab949d5 This is the second of three patches to implement support for the .loc directive 
and output the dwarf line number tables.  This takes the current loc info after
an instruction is assembled and saves the needed info into an object that has
vector and for each section.  These objects will be used for the final patch to 
build and emit the encoded dwarf line number tables.  Again for now this is only
in the Mach-O streamer but at some point will move to a more generic place.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112668 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 22:55:11 +00:00
Dan Gohman
3f19c091bf Reapply r112432, now that the real problem is addressed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112667 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 22:53:17 +00:00
Dan Gohman
6a0c125ed5 Reapply r112433, now that the real problem is addressed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112666 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 22:52:12 +00:00
Dan Gohman
90b5f25e8d Revert r110916. This patch is buggy because the code inside the 
inner loop doesn't update all the variables in the outer loop.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112665 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 22:50:31 +00:00
Bill Wendling
43a6c5e2fc We have a chance for an optimization. Consider this code: 
int x(int t) {
  if (t & 256)
    return -26;
  return 0;
}

We generate this:

     tst.w   r0, #256
     mvn     r0, #25
     it      eq
     moveq   r0, #0

while gcc generates this:

     ands    r0, r0, #256
     it      ne
     mvnne   r0, #25
     bx      lr

Scandalous really!

During ISel time, we can look for this particular pattern. One where we have a
"MOVCC" that uses the flag off of a CMPZ that itself is comparing an AND
instruction to 0. Something like this (greatly simplified):

  %r0 = ISD::AND ...
  ARMISD::CMPZ %r0, 0         @ sets [CPSR]
  %r0 = ARMISD::MOVCC 0, -26  @ reads [CPSR]

All we have to do is convert the "ISD::AND" into an "ARM::ANDS" that sets [CPSR]
when it's zero. The zero value will all ready be in the %r0 register and we only
need to change it if the AND wasn't zero. Easy!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112664 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 22:41:22 +00:00
Anton Korobeynikov
1d76ab7f56 Some fixes for NetBSD 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112662 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 22:38:00 +00:00
Bruno Cardoso Lopes
013bb3dee9 Use x86 specific MOVSLDUP node, add more patterns to match it and remove useless load nodes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112661 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-31 22:35:05 +00:00