maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
97,699 Commits 23 Branches 0 Tags 2.2 GiB
Commit Graph

68221 Commits

Author SHA1 Message Date
Kevin Enderby 4886cc8be7 Add some more MC tests for ARM arithmetic instructions that update or don't 
update the condition codes.  These come from my test generator and are just
the ones that MC currently assembles correctly.

llvm-svn: 121830
 2010-12-15 01:24:36 +00:00
Mikhail Glushenkov 224404f851 Copy-pastos. 
llvm-svn: 121829
 2010-12-15 01:22:34 +00:00
Mikhail Glushenkov a59a53f455 Remove ConvertToMAttrImpl, it became too '-march'-specific. 
llvm-svn: 121828
 2010-12-15 01:22:29 +00:00
Mikhail Glushenkov 63e51958f1 llvmc: Support -march arguments that should be forwarded to llc as -mcpu. 
llvm-svn: 121827
 2010-12-15 01:22:25 +00:00
Mikhail Glushenkov 8dced6b08e llvmc: Better -mfpu/-mcpu support for ARM & PPC. 
llvm-svn: 121826
 2010-12-15 01:22:20 +00:00
Mikhail Glushenkov 8084dc957a llvmc: more complete -march table for ARM. 
llvm-svn: 121825
 2010-12-15 01:22:15 +00:00
Mikhail Glushenkov 0929a09306 llvmc: Support -mabi/-mfloat-abi. 
llvm-svn: 121824
 2010-12-15 01:22:10 +00:00
Mikhail Glushenkov 6e0252c7b1 llvmc: Forward -march/-mcpu/-mtune to as & ld. 
llvm-svn: 121823
 2010-12-15 01:22:05 +00:00
Mikhail Glushenkov 9f9b7051c7 llvmc: make switch options ZeroOrMore by default. 
llvm-svn: 121822
 2010-12-15 01:21:59 +00:00
Bill Wendling 832a5daab5 Reapply r121808 now that the missing patterns have been supplied. 
llvm-svn: 121820
 2010-12-15 01:03:19 +00:00
Bill Wendling 1171e9e81d Add some missing patterns now that tLDRB and tLDRH are split into reg and 
immediate versions.

llvm-svn: 121819
 2010-12-15 00:58:57 +00:00
Owen Anderson 35609d97ae Fix PR8790, another instance where unreachable code can cause instruction simplification to fail, 
this case involve a select that simplifies to itself.

llvm-svn: 121817
 2010-12-15 00:55:35 +00:00
Owen Anderson 15c85c916f Cleanup trailing whitespace. 
llvm-svn: 121816
 2010-12-15 00:52:44 +00:00
Bill Wendling 20480d26e9 Revert r121808 until I can fix the build. 
llvm-svn: 121815
 2010-12-15 00:04:00 +00:00
Jim Grosbach eda5177ca6 thumb adr fixup needs alignment just like the t2 version. 
llvm-svn: 121812
 2010-12-14 23:47:35 +00:00
Bill Wendling 5ab38b59e6 Comments and cleaning. 
llvm-svn: 121809
 2010-12-14 23:42:48 +00:00
Bill Wendling 00adcd6ed9 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]

llvm-svn: 121808
 2010-12-14 23:40:49 +00:00
Jakob Stoklund Olesen 0b7ca3a6a7 Simplify RegAllocGreedy's use of register aliases. 
llvm-svn: 121807
 2010-12-14 23:38:19 +00:00
Jakob Stoklund Olesen 47b93401d8 Simplify CCState's use of register aliases. 
llvm-svn: 121806
 2010-12-14 23:28:01 +00:00
Jakob Stoklund Olesen be1c8d3a82 Simplify AggressiveAntiDepBreaker's use of register aliases. 
llvm-svn: 121805
 2010-12-14 23:23:15 +00:00
Jakob Stoklund Olesen 6a5bf7782a Simplyfy RegAllocBasic by using getOverlaps instead of getAliasSet. 
llvm-svn: 121801
 2010-12-14 23:10:48 +00:00
Jakob Stoklund Olesen 757f0e37ea 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.

llvm-svn: 121800
 2010-12-14 23:03:42 +00:00
Jim Grosbach 509dc2a700 Add support for MC-ized encoding of tLEApcrel and tLEApcrelJT. rdar://8755755 
llvm-svn: 121798
 2010-12-14 22:28:03 +00:00
Bill Wendling 6ea3053824 Fix comment. 
llvm-svn: 121797
 2010-12-14 22:26:49 +00:00
Bill Wendling ce4f87b3ba 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.

llvm-svn: 121794
 2010-12-14 22:10:49 +00:00
Evan Cheng 19dc77cec6 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

llvm-svn: 121793
 2010-12-14 21:34:53 +00:00
Jim Grosbach d96bd53d04 trailing whitespace 
llvm-svn: 121792
 2010-12-14 21:28:29 +00:00
Matt Beaumont-Gay 86a05d0bed Move debugging code entirely within DEBUG(). Silences an unused variable 
warning in the opt build.

llvm-svn: 121791
 2010-12-14 21:14:55 +00:00
Jim Grosbach 8c1fabe367 Refactor a bit for legibility. 
llvm-svn: 121790
 2010-12-14 21:10:47 +00:00
Jim Grosbach 2fc6561102 trailing whitespace. 
llvm-svn: 121789
 2010-12-14 20:46:39 +00:00
Jim Grosbach 96254146cf Make sure to propagate the predicate operands for LEApcrel to ADR. 
llvm-svn: 121788
 2010-12-14 20:45:47 +00:00
Owen Anderson f636a64bfe Fix a small bug (typo?) in the fixup for Thumb1 CBZ/CBNZ instructions. 
llvm-svn: 121784
 2010-12-14 19:42:53 +00:00
Jakob Stoklund Olesen 5c3ad0d51e Add LiveIntervalUnion print methods, RegAllocGreedy::trySplit debug spew. 
llvm-svn: 121783
 2010-12-14 19:38:49 +00:00
Jakob Stoklund Olesen d5e38383e0 Use TRI::printReg instead of AbstractRegisterDescription when printing 
LiveIntervalUnions.

llvm-svn: 121781
 2010-12-14 18:53:47 +00:00
Jakob Stoklund Olesen 2dd1ee5fd5 Add TargetRegisterInfo::printReg() to pretty-print registers. 
llvm-svn: 121780
 2010-12-14 18:53:39 +00:00
Jim Grosbach 41955ff958 ARM Fixups relative to thumb functions need to have the low bit of the value 
set for interworking to work properly. rdar://8755956

llvm-svn: 121778
 2010-12-14 18:46:57 +00:00
Jakob Stoklund Olesen e7ee72087e Q.seenAllInterferences() must be called after Q.collectInterferingVRegs(). 
llvm-svn: 121774
 2010-12-14 17:47:36 +00:00
Daniel Dunbar a9b9300bb8 MC/ARM: Fix-up fixup offset for fixup_arm_branch target specific fixup. 
llvm-svn: 121772
 2010-12-14 17:37:16 +00:00
Jim Grosbach e34793e960 Trailing whitespace 
llvm-svn: 121769
 2010-12-14 16:25:15 +00:00
Bill Wendling 6dd0c07622 Use the integer scheduling intrinsic for integer loads and stores. 
llvm-svn: 121765
 2010-12-14 12:33:05 +00:00
Chris Lattner 7499b452c1 - 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.

llvm-svn: 121764
 2010-12-14 08:46:09 +00:00
Chris Lattner 335f0e4ad4 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.

llvm-svn: 121762
 2010-12-14 08:01:53 +00:00
Chris Lattner dc20a7d38c remove the instsimplify logic I added in r121754. It is apparently 
breaking the selfhost builds, though I can't fathom how.

llvm-svn: 121761
 2010-12-14 07:53:03 +00:00
Chris Lattner 9ac168d0ab clean up logic, convert std::set to SmallPtrSet, handle the case 
when all 2-entry phis are simplified away.

llvm-svn: 121760
 2010-12-14 07:41:39 +00:00
Chris Lattner 9fd838d31b 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.

llvm-svn: 121758
 2010-12-14 07:23:10 +00:00
Chris Lattner b42d293faa use SimplifyInstruction instead of reimplementing part of it. 
llvm-svn: 121757
 2010-12-14 07:20:29 +00:00
Chris Lattner fb73de482c simplify GetIfCondition by using getSinglePredecessor. 
llvm-svn: 121756
 2010-12-14 07:15:21 +00:00
Chris Lattner 0f4d67bd88 use AddPredecessorToBlock in 3 places instead of a manual loop. 
llvm-svn: 121755
 2010-12-14 07:09:42 +00:00
Chris Lattner a07cc6f4fd make FoldTwoEntryPHINode use instsimplify a bit, make 
GetIfCondition faster by avoiding pred_iterator.  No
really interesting change.

llvm-svn: 121754
 2010-12-14 07:00:00 +00:00
Chris Lattner afd2a8cfbb remove the dead (and terrible) llvm::RemoveSuccessor function. 
llvm-svn: 121753
 2010-12-14 06:51:55 +00:00