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24025 Commits

Author SHA1 Message Date
Owen Anderson
b31b06d04b Factor MergeBlockIntoPredecessor out into BasicBlockUtils. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53705 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-17 00:01:40 +00:00
Devang Patel
0d885d1661 Mark function used by asm block as used, otherwise optimizer may not see the use and may delete the function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53692 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-16 17:54:34 +00:00
Owen Anderson
5d0af038a7 There's no need to iterate block merging and PRE. In fact, iterating the latter 
could cause problems for memdep when it breaks critical edges.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53691 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-16 17:52:31 +00:00
Scott Michel
5af8f0e67e Somehow, custom lowering of i64 multiplications got dropped along the way. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53689 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-16 17:17:29 +00:00
Dan Gohman
2fbdf0e711 Fix the result type of X86's truncate to i8. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53688 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-16 16:20:48 +00:00
Dan Gohman
7a9a5af6a0 Fix the result type of a VECTOR_SHUFFLE+BIT_CONVERT dagcombine. This 
was turned up by some new SelectionDAG assertion checks that I'm
working on.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53687 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-16 16:13:58 +00:00
Duncan Sands
95db39a9de Add support for promoting and expanding AssertZext 
and AssertSext.  Needed when passing huge integer
parameters with the zeroext or signext attributes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53684 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-16 16:03:07 +00:00
Dan Gohman
c0d6012b31 Fix a comment to say nonnegative instead of positive. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53681 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-16 15:57:10 +00:00
Dan Gohman
c5e1f98fdf Add an assert to check for empty flags for MachineMemOperand. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53680 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-16 15:56:42 +00:00
Matthijs Kooijman
780ae5e179 Redo InstCombiner::visitExtractValueInst. Instead of using the (complicate) 
FindInsertedValue, it now performs a number of simple transformations that
should result in the same effect when applied iteratively.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53673 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-16 12:55:45 +00:00
Duncan Sands
05c397d52a Reorder methods alphabetically. No functionality change. 
While this is not a wonderful organizing principle, it
does make it easy to find routines, and clear where to
insert new ones.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53672 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-16 11:41:33 +00:00
Duncan Sands
7f1d8aeef6 Turn on LegalizeTypes by default. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53671 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-16 11:36:51 +00:00
Matthijs Kooijman
dddc827125 Don't use ++idx_begin when I actually mean idx_begin + 1, especially since we 
also use *idx_begin in the same expression, giving unpredictable results.

This fixes this bug: http://lists.cs.uiuc.edu/pipermail/llvmdev/2008-July/015877.html



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53670 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-16 10:47:35 +00:00
Evan Cheng
be8efa54b6 Fix PR2296. Do not transform x86_sse2_storel_dq into a full-width store. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53666 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-16 07:28:14 +00:00
Evan Cheng
817a6a9eaa x86-64 PIC JIT fixes: do not generate the extra load for external GV's. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53661 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-16 01:34:02 +00:00
Evan Cheng
81fb5feede X86-64 PIC jump table values are different from x86-32 cases, they are dest - table base. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53660 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-16 01:33:08 +00:00
Dan Gohman
9c578eb223 TargetAsmInfo::SectionForGlobal showed up in a profile. Simplify it a little. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53639 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-15 18:37:51 +00:00
Dan Gohman
4093d83010 SelectionDAG::AssignNodeIds is unused. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53636 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-15 18:29:32 +00:00
Dan Gohman
90a7b8fba6 Don't sort SDNodes by their addresses in SelectionDAG::dump. Instead, 
just use the AllNodes order, which is at least relatively stable
across runs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53632 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-15 18:18:54 +00:00
Owen Anderson
2b4f7bbd49 Revert this, as it seems to still be broken. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53627 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-15 17:59:02 +00:00
Owen Anderson
b33f7cc7e6 Enable local PRE by default. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53616 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-15 16:28:23 +00:00
Owen Anderson
961edc8be6 Have GVN do a pre-pass over the CFG that folds away unconditional branches where possible. This allows local PRE to be more aggressive. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53615 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-15 16:28:06 +00:00
Duncan Sands
295a7cddbd LegalizeTypes support for fabs on ppc long double. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53613 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-15 15:02:44 +00:00
Matthijs Kooijman
4f72368529 Allow deadargelim to change return types even though now values were dead. This 
again canonicalizes {i32} into i32 and {} into void.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53610 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-15 14:42:31 +00:00
Matthijs Kooijman
d1d1de7f39 Revert r53606. It turns out that explicitely tracking the liveness of the 
return value as a whole in deadargelim is really not needed now that we simply
rebuild the old return value and actually prevents some canonicalization from
taking place.

This revert stops deadargelim from changing {i32} into i32 for now, but I'll
fix that next.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53609 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-15 14:39:36 +00:00
Matthijs Kooijman
eb32b453b3 Make deadargelim a bit less smart, so it doesn't choke on nested structs as 
return values that are still (partially) live. Instead of updating all uses of
a call instruction after removing some elements, it now just rebuilds the
original struct (With undef gaps where the unused values were) and leaves it to
instcombine to clean this up.

The added testcase still fails currently, but this is due to instcombine which
isn't good enough yet. I will fix that part next.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53608 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-15 14:03:10 +00:00
Matthijs Kooijman
9c9418d0f3 Don't use isa when we can reuse a previous dyn_cast. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53607 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-15 13:39:08 +00:00
Matthijs Kooijman
ddd1a79b6d Make DeadArgElim keep liveness of the return value as a whole in addition to 
only the liveness of partial return values (for functions returning a struct).
This is more explicit to prevent unwanted changes in the return value. 

In particular, deadargelim now canonicalizes a function returning {i32} to
returning i32 and {} to void, if the struct returned is not used in its
entirety, but only the single element is used.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53606 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-15 13:36:06 +00:00
Duncan Sands
c07e6e53f7 LegalizeTypes support for promotion of bswap. 
In LegalizeDAG the value is zero-extended to
the new type before byte swapping.  It doesn't
matter how the extension is done since the new
bits are shifted off anyway after the swap, so
extend by any old rubbish bits.  This results
in the final assembler for the testcase being
one line shorter.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53604 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-15 10:18:22 +00:00
Duncan Sands
8d56a6f4d8 LegalizeTypes support for promotion of SIGN_EXTEND_INREG. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53603 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-15 10:14:24 +00:00
Duncan Sands
bf304c2065 Reorder the integer promotion methods alphabetically. 
No change in functionality.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53602 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-15 10:12:34 +00:00
Matthijs Kooijman
2bf5372d8a Let DAE keep a list of live functions, instead of simply marking all arguments 
and return values live for those functions. This doesn't change anything yet,
but prepares for the coming commits.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53601 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-15 09:11:16 +00:00
Matthijs Kooijman
3015652473 Split DAE::MarkLive into MarkLive and PropagateLiveness. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53600 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-15 09:00:17 +00:00
Matthijs Kooijman
6cdd54b6f7 Pass around const RetOrArg references instead of copying values. Also, mark 
RetOrArg::getDescription() as const.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53599 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-15 08:56:49 +00:00
Matthijs Kooijman
03016ca361 Simplify debug code by using RetOrArg::getDescription(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53598 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-15 08:53:36 +00:00
Matthijs Kooijman
0d1730a14c Fix indentation (intentionally left out of the previous commit). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53592 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-15 08:47:32 +00:00
Matthijs Kooijman
a3ec5d6ecc Move the deadargelim code for intrinsically alive functions into its own 
method, to slightly simplify control flow.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53591 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-15 08:45:12 +00:00
Mon P Wang
2920d2b7b6 Fixed potential bug if the source and target of a bit convert have different alignment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53590 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-15 05:28:34 +00:00
Nick Lewycky
8ae38e1516 Correct this inversion! 
I swear that didn't show up in svn diff...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53587 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-15 03:47:44 +00:00
Nick Lewycky
86dae65baa Fix up comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53586 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-15 03:40:27 +00:00
Bruno Cardoso Lopes
b27cb55923 Fixed call stack alignment. Improved AsmPrinter alignment issues. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53585 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-15 02:03:36 +00:00
Dan Gohman
5e84368b26 Reapply 53476 and 53480, with a fix so that it properly updates 
the BB member to the current basic block after emitting
instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53567 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-14 18:19:29 +00:00
Dan Gohman
3fea643fb4 Fix uninitialized use of the Changed variable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53564 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-14 17:55:01 +00:00
Dan Gohman
91d49f5ba1 Improve debug output for MemOperandSDNode. PseudoSourceValue nodes 
don't have value names, so use print instead of getName() to get a
useful string.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53563 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-14 17:51:24 +00:00
Dan Gohman
2b062994a6 Fix edito in the PseudoSourceValue name list. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53562 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-14 17:45:47 +00:00
Duncan Sands
189a2b32f8 I don't think BUILD_PAIR can have a vector result. 
Remove support for this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53559 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-14 17:34:19 +00:00
Duncan Sands
a489be59ef Tighten up some checks. Fix FPOWI splitting for 
non-power-of-two vectors.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53558 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-14 17:33:37 +00:00
Chris Lattner
46868c07bb Reapply r53540, now with the matching header! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53557 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-14 17:32:59 +00:00
Duncan Sands
262e04b307 An INSERT_VECTOR_ELT can insert a larger value 
than the vector element type.  Don't forget to
handle this when the insertion index is not a
constant.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53556 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-14 17:32:02 +00:00
Duncan Sands
8cc364c5cc According to the docs, it is possible to have an 
extending load of a vector.  Handle this case when
splitting vector loads.  I'm not completely sure
what is supposed to happen, but I think it means
hi should be set to undef.  LegalizeDAG does not
consider this case.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53555 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-14 17:27:46 +00:00