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Author SHA1 Message Date
Daniel Dunbar
25bcc9cdc8 MC/Mach-O/ARM: Clone off an ARM version of RecordScatteredRelocation until I figure out how it is supposed to work. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122410 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-22 16:45:29 +00:00
Daniel Dunbar
5cc6390495 MC/Mach-O: Return to reporting errors if we see unexpected fixup kinds. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122409 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-22 16:32:41 +00:00
Daniel Dunbar
3664564395 MC/Mach-O/ARM: Recognize generic _Data_N fixup kinds. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122408 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-22 16:32:37 +00:00
Daniel Dunbar
294e67861c MC/Mach-O/ARM: Add enough relocation logic to get BR24 relocations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122407 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-22 16:19:24 +00:00
Daniel Dunbar
fdfbc6a652 MC/Mach-O/ARM: Fix thinko. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122406 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-22 16:19:20 +00:00
Rafael Espindola
33a38a1b5a Use references and simplify. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122405 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-22 16:11:57 +00:00
Rafael Espindola
f01212489b Simplify the handling of .size expressions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122404 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-22 16:03:00 +00:00
Daniel Dunbar
4d74305a1f MC/Mach-O/ARM: Stub out RecordARMRelocation, which is mostly a copy of 
RecordRelocation with lots of FIXMEs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122402 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-22 13:50:05 +00:00
Daniel Dunbar
42b5286627 Simplify. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122401 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-22 13:49:56 +00:00
Daniel Dunbar
532c456d48 MC/Mach-O: Split out RecordARMRelocation for now, it is weird enough it isn't 
clear how to keep in the generic path (yet).
 - Will revisit when it actually works.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122400 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-22 13:49:43 +00:00
Duncan Sands
37bf92b523 Add a generic expansion transform: A op (B op' C) -> (A op B) op' (A op C) 
if both A op B and A op C simplify.  This fires fairly often but doesn't
make that much difference.  On gcc-as-one-file it removes two "and"s and
turns one branch into a select.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122399 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-22 13:36:08 +00:00
Che-Liang Chiou
fc7072c3c4 ptx: add ld instruction and test 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122398 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-22 10:38:51 +00:00
Duncan Sands
a3c44a5280 Add some statistics, good for understanding how much more powerful 
instcombine is compared to instsimplify.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122397 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-22 09:40:51 +00:00
Oscar Fuentes
711042839c Fixes file extension for loadable modules on OS X. 
Patch by Wesley Peck!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122395 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-22 08:30:17 +00:00
Chris Lattner
cbf68dfbc0 Fix a bug in ReduceLoadWidth that wasn't handling extending 
loads properly.  We miscompiled the testcase into:

_test:                                  ## @test
	movl	$128, (%rdi)
	movzbl	1(%rdi), %eax
	ret

Now we get a proper:

_test:                                  ## @test
	movl	$128, (%rdi)
	movsbl	(%rdi), %eax
	movzbl	%ah, %eax
	ret

This fixes PR8757.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122392 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-22 08:02:57 +00:00
Chris Lattner
7a2a7faf9c more cleanups, move a check for "roundedness" earlier to reject 
unhanded cases faster and simplify code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122391 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-22 08:01:44 +00:00
Chris Lattner
4c32bc24de reduce indentation and improve comments, no functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122389 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-22 07:36:50 +00:00
Wesley Peck
9eb337a2b7 Don't generate carry bit when loading immediate values on the Microblaze. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122385 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-22 01:29:32 +00:00
Wesley Peck
6b3bbb149f Add support for some of the LLVM atomic operations to the MBlaze backend. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122384 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-22 01:15:01 +00:00
Wesley Peck
5f996d1025 Modeling the carry bit in the MSR register of the MicroBlaze. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122381 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-22 00:53:07 +00:00
Wesley Peck
025c4587d7 Fix a regression introduced into the MBlaze delay slot filler. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122379 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-22 00:22:59 +00:00
Owen Anderson
f056838956 Give GVN back the ability to perform simple conditional propagation on conditional branch values. 
I still think that LVI should be handling this, but that capability is some ways off in the future,
and this matters for some significant benchmarks.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122378 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 23:54:34 +00:00
Matt Beaumont-Gay
e733cf8c27 GCC objects to the two sides of a conditional expression having different enum 
types, but they're just getting converted to unsigned anyway, so cast first
(and ask questions later).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122377 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 23:43:23 +00:00
Owen Anderson
491e0307a8 Remove dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122371 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 22:31:24 +00:00
Andrew Trick
feac09801b In DelayForLiveRegsBottomUp, handle instructions that read and write 
the same physical register. Simplifies the fix from the previous
checkin r122211.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122370 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 22:27:44 +00:00
Andrew Trick
38036d8b36 whitespace 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122368 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 22:25:04 +00:00
Dale Johannesen
c72b18cdc8 Reapply 122353-122355 with fixes. 122354 was wrong; 
the shift type was needed one place, the shift count
type another.  The transform in 123555 had the same
problem.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122366 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 21:55:50 +00:00
Benjamin Kramer
7d6fe13efc Add some x86 specific dagcombines for conditional increments. 
(add Y, (sete  X, 0)) -> cmp X, 1; adc  0, Y
(add Y, (setne X, 0)) -> cmp X, 1; sbb -1, Y
(sub (sete  X, 0), Y) -> cmp X, 1; sbb  0, Y
(sub (setne X, 0), Y) -> cmp X, 1; adc -1, Y

for
  unsigned foo(unsigned a, unsigned b) {
    if (a == 0) b++;
    return b;
  }
we now get:
  foo:
    cmpl  $1, %edi
    movl  %esi, %eax
    adcl  $0, %eax
    ret
instead of:
  foo:
    testl %edi, %edi
    sete  %al
    movzbl  %al, %eax
    addl  %esi, %eax
    ret


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122364 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 21:41:44 +00:00
Benjamin Kramer
aad94aa437 GVN's Expression is not POD-like (it contains a SmallVector). Simplify code while at it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122362 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 21:30:19 +00:00
Dale Johannesen
d0cf2585a0 Revert 122353-122355 for the moment, they broke stuff. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122360 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 21:22:27 +00:00
Rafael Espindola
64b4412196 Simplify EvaluateAsAbsolute now that EvaluateAsRelocatableImpl does all 
the folding it can.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122359 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 20:51:42 +00:00
Rafael Espindola
7a45903bf4 Don't relax org or align. They change size as the relaxation happens, but they 
are not actually relaxed. For example, a section with only alignments will never
needs relaxation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122356 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 20:35:18 +00:00
Dale Johannesen
a83bf35d16 Add a new transform to DAGCombiner. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122355 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 20:10:51 +00:00
Dale Johannesen
5ecc340e34 Get the type of a shift from the shift, not from its shift 
count operand.  These should be the same but apparently are
not always, and this is cleaner anyway.  This improves the
code in an existing test.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122354 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 20:06:19 +00:00
Dale Johannesen
efc96dd38c Shift by the word size is invalid IR; don't create it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122353 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 20:00:06 +00:00
Chris Lattner
90b0364cff fix some typos 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122349 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 18:05:22 +00:00
David Greene
234da6832f Revert 122341. It breaks some darwin tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122346 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 17:25:43 +00:00
Stuart Hastings
56500edc7a Fix indentation, add comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122345 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 17:16:58 +00:00
Duncan Sands
1cd0f4637b Visit instructions deterministically. Use a FIFO so as to approximately 
visit instructions before their uses, since InstructionSimplify does a
better job in that case.  All this prompted by Frits van Bommel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122343 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 17:08:55 +00:00
Stuart Hastings
2965e69e04 Missing logic for nested CALLSEQ_START/END. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122342 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 17:07:24 +00:00
David Greene
4d75d80d62 Fix PR 8199. This patch prepends the build tool dir to LLVM programs 
being tested.  This ensures that we test the tools just built and not
some random tools that might happen to be in the user's PATH.  This
makes LLVM testing much more stable and predictable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122341 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 16:55:53 +00:00
Jim Grosbach
fbadcd0826 Tidy up a bit. Trailing whitespace, hard tabs and 80-columns. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122337 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 16:16:00 +00:00
Duncan Sands
e95cc25a22 If an instruction simplifies, try again to simplify any uses of it. This is 
not very important since the pass is only used for testing, but it does make
it more realistic.  Suggested by Frits van Bommel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122336 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 16:12:03 +00:00
Daniel Dunbar
e1feeb9da4 MC/Mach-O: Shuffle enums a bit to make it harder to inadvertently use the wrong 
type.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122334 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 15:26:45 +00:00
Duncan Sands
025c98bdbd Add an additional InstructionSimplify factorization test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122333 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 15:12:22 +00:00
Duncan Sands
07f30fbd73 While I don't think any later transforms can fire, it seems cleaner to 
not assume this (for example in case more transforms get added below
it).  Suggested by Frits van Bommel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122332 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 15:03:43 +00:00
Duncan Sands
75d289ed62 Fix inverted condition noticed by Frits van Bommel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122331 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 14:48:48 +00:00
Duncan Sands
82fdab3358 Pull a few more simplifications out of instcombine (there are still 
plenty left though!), in particular for multiplication.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122330 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 14:00:22 +00:00
Duncan Sands
9bd2c2e63c Fix typo in comment, spotted by Deewiant. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122329 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 13:39:20 +00:00
Duncan Sands
3421d90853 Teach InstructionSimplify about distributive laws. These transforms fire 
quite often, but don't make much difference in practice presumably because
instcombine also knows them and more.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122328 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 13:32:22 +00:00