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Author SHA1 Message Date
Mikhail Glushenkov 42db997688 llvmc: Support -march arguments that should be forwarded to llc as -mcpu. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121827 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 01:22:25 +00:00
Mikhail Glushenkov 2ac7eb8c61 llvmc: Better -mfpu/-mcpu support for ARM & PPC. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121826 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 01:22:20 +00:00
Mikhail Glushenkov 26e10aeaf4 llvmc: more complete -march table for ARM. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121825 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 01:22:15 +00:00
Mikhail Glushenkov 73e78098fd llvmc: Support -mabi/-mfloat-abi. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121824 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 01:22:10 +00:00
Mikhail Glushenkov bebea87284 llvmc: Forward -march/-mcpu/-mtune to as & ld. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121823 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 01:22:05 +00:00
Mikhail Glushenkov 87685e8e8f llvmc: make switch options ZeroOrMore by default. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121822 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 01:21:59 +00:00
Bill Wendling bc4224bc6b Reapply r121808 now that the missing patterns have been supplied. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121820 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 01:03:19 +00:00
Bill Wendling 415af3452e Add some missing patterns now that tLDRB and tLDRH are split into reg and 
immediate versions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121819 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 00:58:57 +00:00
Owen Anderson 86e8a700f5 Fix PR8790, another instance where unreachable code can cause instruction simplification to fail, 
this case involve a select that simplifies to itself.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121817 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 00:55:35 +00:00
Owen Anderson 93f83deba1 Cleanup trailing whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121816 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 00:52:44 +00:00
Bill Wendling 7d1d8db54a Revert r121808 until I can fix the build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121815 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 00:04:00 +00:00
Jim Grosbach 9d04dc52a5 thumb adr fixup needs alignment just like the t2 version. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121812 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 23:47:35 +00:00
Bill Wendling 345cdb6475 Comments and cleaning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121809 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 23:42:48 +00:00
Bill Wendling 2af0fd3fee Make the ISel selections for LDR/STR the same as before the LDRr/LDRi split. In 
particular, we want

   ldr r2, [r3]

to be equivalent to

   ldr r2, [r3, #0]

and not

   ldr r2, [r3, r0]



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121808 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 23:40:49 +00:00
Jakob Stoklund Olesen 257c556d85 Simplify RegAllocGreedy's use of register aliases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121807 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 23:38:19 +00:00
Jakob Stoklund Olesen eb7464ebda Simplify CCState's use of register aliases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121806 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 23:28:01 +00:00
Jakob Stoklund Olesen 597faa8f1f Simplify AggressiveAntiDepBreaker's use of register aliases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121805 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 23:23:15 +00:00
Jakob Stoklund Olesen 16999da951 Simplyfy RegAllocBasic by using getOverlaps instead of getAliasSet. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121801 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 23:10:48 +00:00
Jakob Stoklund Olesen b83ff84193 Introduce TargetRegisterInfo::getOverlaps(Reg), returning a list of all 
registers that alias Reg, including itself. This is almost the same as the
existing getAliasSet() method, except for the inclusion of Reg.

The name matches the reflexive TRI::regsOverlap(x, y) relation.

It is very common to do stuff to a register and all its aliases:

  stuff(Reg)
  for (const unsigned *Alias = TRI->getAliasSet(Reg); *Alias; ++Alias)
    stuff(*Alias);

That can now be written as the simpler:

  for (const unsigned *Alias = TRI->getOverlaps(Reg); *Alias; ++Alias)
    stuff(*Alias);

This change requires a bit more constant space for the alias lists because Reg
is included and because the empty alias list cannot be shared any longer.

If the getAliasSet method is eventually removed, this space can be reclaimed by
sharing overlap lists. For instance, %rax and %eax have identical overlap sets.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121800 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 23:03:42 +00:00
Jim Grosbach d40963c406 Add support for MC-ized encoding of tLEApcrel and tLEApcrelJT. rdar://8755755 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121798 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 22:28:03 +00:00
Bill Wendling ee2b350d83 Fix comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121797 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 22:26:49 +00:00
Bill Wendling b6faf65215 Multiclassify the LDR/STR encoding patterns. The only functionality difference 
is the addition of the FoldableAsLoad & Rematerializable flags to some of the
load instructions. ARM has these flags set for them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121794 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 22:10:49 +00:00
Evan Cheng bbc726d624 Fix a minor bug in two-address pass. It was missing a commute opportunity. 
regB = move RCX
regA = op regB, regC
RAX  = move regA
where both regB and regC are killed. If regB is constrainted to non-compatible
physical registers but regC is not constrainted at all, then it's better to
commute the instruction.
       movl    %edi, %eax
       shlq    $32, %rcx
       leaq    (%rcx,%rax), %rax
=>
       movl    %edi, %eax
       shlq    $32, %rcx
       orq     %rcx, %rax
rdar://8762995


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121793 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 21:34:53 +00:00
Jim Grosbach 8d6d7d6e30 trailing whitespace 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121792 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 21:28:29 +00:00
Matt Beaumont-Gay 3ef9f3da39 Move debugging code entirely within DEBUG(). Silences an unused variable 
warning in the opt build.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121791 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 21:14:55 +00:00
Jim Grosbach 40edf73a62 Refactor a bit for legibility. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121790 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 21:10:47 +00:00
Jim Grosbach 00f25fa43e trailing whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121789 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 20:46:39 +00:00
Jim Grosbach eb61272150 Make sure to propagate the predicate operands for LEApcrel to ADR. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121788 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 20:45:47 +00:00
Owen Anderson 86abd48fd0 Fix a small bug (typo?) in the fixup for Thumb1 CBZ/CBNZ instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121784 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 19:42:53 +00:00
Jakob Stoklund Olesen bfce678de7 Add LiveIntervalUnion print methods, RegAllocGreedy::trySplit debug spew. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121783 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 19:38:49 +00:00
Jakob Stoklund Olesen 4a84cce3ed Use TRI::printReg instead of AbstractRegisterDescription when printing 
LiveIntervalUnions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121781 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 18:53:47 +00:00
Jakob Stoklund Olesen 414e5023f8 Add TargetRegisterInfo::printReg() to pretty-print registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121780 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 18:53:39 +00:00
Jim Grosbach 4750020788 ARM Fixups relative to thumb functions need to have the low bit of the value 
set for interworking to work properly. rdar://8755956

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121778 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 18:46:57 +00:00
Jakob Stoklund Olesen d84de8cf62 Q.seenAllInterferences() must be called after Q.collectInterferingVRegs(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121774 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 17:47:36 +00:00
Daniel Dunbar abfbac52df MC/ARM: Fix-up fixup offset for fixup_arm_branch target specific fixup. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121772 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 17:37:16 +00:00
Jim Grosbach e8eb1ea6ac Trailing whitespace 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121769 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 16:25:15 +00:00
Bill Wendling 971321bb70 Use the integer scheduling intrinsic for integer loads and stores. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121765 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 12:33:05 +00:00
Chris Lattner 3aff13b82a - Insert new instructions before DomBlock's terminator, 
which is simpler than finding a place to insert in BB.
 - Don't perform the 'if condition hoisting' xform on certain
   i1 PHIs, as it interferes with switch formation.

This re-fixes "example 7", without breaking the world hopefully.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121764 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 08:46:09 +00:00
Chris Lattner 60d410d7bb fix two significant issues with FoldTwoEntryPHINode: 
first, it can kick in on blocks whose conditions have been
folded to a constant, even though one of the edges will be
trivially folded.

second, it doesn't clean up the "if diamond" that it just 
eliminated away.  This is a problem because other simplifycfg
xforms kick in depending on the order of block visitation,
causing pointless work.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121762 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 08:01:53 +00:00
Chris Lattner 071edc81f2 remove the instsimplify logic I added in r121754. It is apparently 
breaking the selfhost builds, though I can't fathom how.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121761 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 07:53:03 +00:00
Chris Lattner 44da7ca421 clean up logic, convert std::set to SmallPtrSet, handle the case 
when all 2-entry phis are simplified away.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121760 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 07:41:39 +00:00
Chris Lattner e0b18e5912 tidy up a bit, move DEBUG down to when we commit to doing the transform so we 
don't print it unless the xform happens.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121758 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 07:23:10 +00:00
Chris Lattner 07ff3539f5 use SimplifyInstruction instead of reimplementing part of it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121757 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 07:20:29 +00:00
Chris Lattner 995ba1bd49 simplify GetIfCondition by using getSinglePredecessor. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121756 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 07:15:21 +00:00
Chris Lattner 6de0a28dfb use AddPredecessorToBlock in 3 places instead of a manual loop. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121755 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 07:09:42 +00:00
Chris Lattner 73c50a68a7 make FoldTwoEntryPHINode use instsimplify a bit, make 
GetIfCondition faster by avoiding pred_iterator.  No
really interesting change.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121754 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 07:00:00 +00:00
Chris Lattner 2112bbc42d remove the dead (and terrible) llvm::RemoveSuccessor function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121753 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 06:51:55 +00:00
Chris Lattner 302ba6fc1c improve DEBUG's a bit, switch to eraseFromParent() to simplify 
code a bit, switch from constant folding to instsimplify.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121751 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 06:17:25 +00:00
Chris Lattner 8168efffa7 fix yet anohter broken line 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121750 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 06:09:07 +00:00
Chris Lattner 117f8cffc5 reapply my recent change that disables a piece of the switch formation 
work, but fixes 400.perlbmk.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121749 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 05:57:30 +00:00