Commit Graph

54164 Commits

Author SHA1 Message Date
Jim Grosbach
7707a0df5b Move the utility function UpdateTerminator() from CodePlacementOpt() into
MachineBasicBlock so other passes can utilize it.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86947 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12 03:55:33 +00:00
Jim Grosbach
01dec0e545 Revert 86857. It's causing consumer-typeset to fail, and there's a better way to do it forthcoming anyway.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86945 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12 03:28:35 +00:00
Eric Christopher
116664a697 Use stubs when we have them, otherwise use code we already have,
otherwise create a stub.

Add a test to make sure we don't create extraneous stubs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86941 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12 03:12:18 +00:00
Daniel Dunbar
dfa9261f68 Add the braces gcc suggested.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86933 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12 02:52:56 +00:00
Nick Lewycky
ad108baf47 Add CreateNUWAdd and CreateNUWSub to complement the existing CreateNSWAdd and
CreateNSWSub functions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86930 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12 02:08:11 +00:00
Chris Lattner
3e04a05672 should not commit when distracted.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86929 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12 02:04:17 +00:00
Dan Gohman
72b2990a74 Make the BranchFolderPass class local to BranchFolding.cpp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86928 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12 01:59:26 +00:00
Chris Lattner
a5810add9c We now thread some impossible condition information with LVI.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86927 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12 01:55:20 +00:00
Dan Gohman
8520149db1 Minor code cleanups.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86926 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12 01:51:28 +00:00
Chris Lattner
87e9f59c7a with the new code we can thread non-instruction values. This
allows us to handle the test10 testcase.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86924 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12 01:41:34 +00:00
Chris Lattner
1c96b4187b this argument can be an arbitrary value, it doesn't need to be an instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86923 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12 01:37:43 +00:00
Chris Lattner
38392bbeb8 expose edge information and switch j-t to use it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86920 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12 01:29:10 +00:00
Lang Hames
f035ce58bc Fixed an iteration condition in PreAllocSplitting. This should fix some miscompilations casued by PreAllocSplitting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86919 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12 01:24:08 +00:00
Chris Lattner
b8c124c343 move some stuff into DEBUG's and turn on lazy-value-info for
the basic.ll testcase.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86918 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12 01:22:16 +00:00
Eric Christopher
5cf0aedd0b Fix typo, cleanup whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86917 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12 01:06:08 +00:00
Devang Patel
afa5a34b30 Do not use StringRef in DebugInfo interface.
This allows StringRef to skip controversial if(str) check in constructor.
Buildbots, wait for corresponding clang and llvm-gcc FE check-ins!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86914 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12 00:50:58 +00:00
Dan Gohman
ad6af45dc1 Tail merge at any size when there are two potentials blocks and one
can be made to fall through into the other.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86909 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12 00:39:10 +00:00
Bill Wendling
73b5551058 Don't mark a call as potentially throwing if the function it's calling has the
"nounwind" attribute.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86897 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11 23:17:02 +00:00
Bruno Cardoso Lopes
9089ba8e5e A real solution for the first part of PR5445
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86895 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11 23:09:33 +00:00
Chris Lattner
1697652922 make LazyValueInfo actually to some stuff. This isn't very tested but improves
strswitch.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86889 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11 22:48:44 +00:00
Chris Lattner
2ad00bf99d pass TD into a SimplifyCmpInst call. Add another case that
uses LVI info when -enable-jump-threading-lvi is passed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86886 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11 22:31:38 +00:00
Dan Gohman
ffe644ebf4 Promote MergePotentialsElt and SameTailElt to be regular classes
instead of typedefs for std::pair. This simplifies the type of
SameTails, which previously was std::vector<std::pair<std::vector<std::pair<unsigned, MachineBasicBlock *> >::iterator, MachineBasicBlock::iterator>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86885 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11 21:57:02 +00:00
Kenneth Uildriks
c158dde219 x86 users can now return arbitrary sized structs. Structs too large to fit in return registers will be returned through a hidden sret parameter introduced during SelectionDAG construction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86876 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11 19:59:24 +00:00
Dan Gohman
7cc253e3b8 Revert this line of 86871.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86875 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11 19:56:05 +00:00
Devang Patel
3380cc5307 If doesSupportDebugInformation() is false then do not try to emit dwarf debug info.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86874 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11 19:55:08 +00:00
Dan Gohman
412a3b90d1 Check in the changes to this file too.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86873 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11 19:49:34 +00:00
Dan Gohman
2210c0bea8 Add support for tail duplication to BranchFolding, and extend
tail merging support to handle more cases.
 - Recognize several cases where tail merging is beneficial even when
   the tail size is smaller than the generic threshold.
 - Make use of MachineInstrDesc::isBarrier to help detect
   non-fallthrough blocks.
 - Check for and avoid disrupting fall-through edges in more cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86871 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11 19:48:59 +00:00
Jakob Stoklund Olesen
3e20475fee Fix liveness calculation when splitting critical edges during PHI elimination.
- Edges are split before any phis are eliminated, so the code is SSA.

- Create a proper IR BasicBlock for the split edges.

- LiveVariables::addNewBlock now has same syntax as
  MachineDominatorTree::addNewBlock. Algorithm calculates predecessor live-out
  set rather than successor live-in set.

This feature still causes some miscompilations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86867 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11 19:31:31 +00:00
Devang Patel
eba4ed9cbb Reenable StackTracke.cpp test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86861 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11 19:08:42 +00:00
Devang Patel
4a8efb0c39 Add SetDebugLocation() variant to
add debug info location to an instruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86859 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11 19:06:06 +00:00
Evan Cheng
77e4751011 Add TargetLowering::isLegalICmpImmediate. It tells LSR what immediate can be folded into target icmp instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86858 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11 19:05:52 +00:00
Jim Grosbach
f4997e87e3 Do jump table adjustment before constant island allocation
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86857 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11 19:04:24 +00:00
Dan Gohman
cdc06ba5df Fix indentation level.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86856 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11 18:42:28 +00:00
Dan Gohman
4e3f125e18 Whitespace cleanups.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86855 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11 18:38:14 +00:00
Dan Gohman
a127edceae Prefix MBB numbers with "BB#" in debug output to make it clear what
the numbers mean.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86854 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11 18:23:17 +00:00
Dan Gohman
d194498d26 Minor code simplification.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86853 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11 18:18:34 +00:00
Dan Gohman
641c6f983e Fix a copy+pasto in a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86852 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11 18:14:02 +00:00
Dan Gohman
adaace8aa8 Set isBarrier = 1 on return instructions, as they are control barriers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86851 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11 18:11:07 +00:00
Dan Gohman
e94975ee64 Use a tab in INT3's asm string, for consistency.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86850 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11 18:07:16 +00:00
Chris Lattner
fc926c2395 another const prop failure.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86848 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11 17:54:02 +00:00
Chris Lattner
6fdfc9c630 add a note
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86847 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11 17:51:27 +00:00
Chris Lattner
d682a60c4e Reject duplicate case values in a switch, PR5450.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86846 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11 17:37:02 +00:00
Duncan Sands
a3da922a27 Don't trivially delete unused calls to llvm.invariant.start. This allows
llvm.invariant.start to be used without necessarily being paired with a call
to llvm.invariant.end.  If you run the entire optimization pipeline then such
calls are in fact deleted (adce does it), but that's actually a good thing since
we probably do want them to be zapped late in the game.  There should really be
an integration test that checks that the llvm.invariant.start call lasts long
enough that all passes that do interesting things with it get to do their stuff
before it is deleted.  But since no passes do anything interesting with it yet
this will have to wait for later.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86840 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11 15:34:13 +00:00
Evan Cheng
012397489b Add nounwind.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86814 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11 07:11:02 +00:00
Chris Lattner
f8fb7c26ee remove the now dead condprop pass, PR3906.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86810 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11 05:56:35 +00:00
Jeffrey Yasskin
b069c91191 Fix JITTest.ModuleDeletion in -Asserts mode (which turns off JITEmitDebugInfo
by default).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86807 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11 05:30:02 +00:00
Chris Lattner
f1e9cf5020 remove condprop testcases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86804 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11 05:25:16 +00:00
Daniel Dunbar
a8333d3d10 Add StringRef::split(StringRef), to complement StringRef::split(char).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86803 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11 05:19:11 +00:00
Rafael Espindola
90a6fd31b7 Remove dead code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86802 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11 04:10:24 +00:00
Sandeep Patel
bf177ee6fd Show command-line args and features passed into backend in debug output. Approved by Evan Cheng.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86797 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11 03:23:46 +00:00