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Author SHA1 Message Date
Duncan Sands
f00e74f4d6 Turn LegalizeTypes back off again for the moment: 
it is breaking Darwin bootstrap due to missing
functionality.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53721 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-17 17:06:03 +00:00
Nate Begeman
e99b255b5c Fix a typo in last commit 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53720 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-17 17:04:58 +00:00
Nate Begeman
30a0de94e7 SSE codegen for vsetcc nodes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53719 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-17 16:51:19 +00:00
Matthijs Kooijman
bc1f989e3c Make GlobalOpt preserve address spaces when scalar replacing aggregate globals. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53716 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-17 11:59:53 +00:00
Chris Lattner
d137ab4783 Fix PR2553 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53715 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-17 06:07:20 +00:00
Mon P Wang
f595266b91 When lowering certain atomics, we need to copy the memoperand from the old 
atomic operation to the new one.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53714 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-17 04:54:06 +00:00
Duncan Sands
b2ff885aae Factorize some code for determining which libcall to use. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53713 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-17 02:36:29 +00:00
Evan Cheng
066fcf8628 Inliner tweak. Function calls should cost more than one instruction! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53712 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-17 01:31:49 +00:00
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
413907000e Name string length is end position marker - begin position marker. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53697 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-16 19:49:09 +00:00
Devang Patel
c2aec57c63 Do not forget global definitions from inline asm code block. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53693 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-16 18:06:52 +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
Dan Gohman
9cf80fac29 Fix the name of BreakCriticalMachineEdge.h's include guard 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53686 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-16 16:04:07 +00:00
Dan Gohman
58ca8d55d4 Correct a top-level comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53685 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-16 16:03:31 +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
61e804f22b Clarify the comments here, to make slightly more clear the 
difference in purpose of TargetInstrInfo and TargetInstrDesc,
which isn't immediately obvious from the name.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53683 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-16 16:02:59 +00:00
Dan Gohman
2853367fd0 Tidy a doxygen comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53682 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-16 15:59:56 +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
Duncan Sands
836b3e63bd Test passing of integer parameters for integers 
of all sizes from i1 to i256.  The code is not
always that great, for example (x86)
        movw    %di, %ax
        movw    %ax, i17_s
where the store could be directly from %di.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53677 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-16 13:37:36 +00:00
Duncan Sands
8b5e62f0db Test codegen of loads and stores of all integer 
sizes from i1 to i256.  The generated code is
like one huge bug report of things that the DAG
combiner fails to simplify!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53676 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-16 13:10:20 +00:00
Matthijs Kooijman
d8b4d60490 Add a few cases to instcombine's extractvalue testcase. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53675 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-16 12:57:25 +00:00
Matthijs Kooijman
5f0028e211 Un-XFAIL multdeadretval, since instcombine now properly handles the mess deadargelim leaves behind :-) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53674 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-16 12:56:52 +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
Duncan Sands
17991c3234 The atomic.cmp.swap promotion logic is wrong: it 
simply does the atomic.cmp.swap on the larger type,
which means it blows away whatever is sitting in
the bytes just after the memory location, i.e.
causes a buffer overflow.  This really requires
target specific code, which is why LegalizeTypes
doesn't try to handle this case generically.  The
existing (wrong) code in LegalizeDAG will go away
automatically once the type legalization code is
removed from LegalizeDAG so I'm leaving it there
for the moment.  Meanwhile, don't test for this
feature.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53669 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-16 08:09:48 +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
Matthijs Kooijman
b79d2a6bfa XFAIL the multdeadretval test for now, I will be fixing instcombine to make it work again tomorrow. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53614 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-15 16:05:09 +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
790dd75b97 Remove a few tests which no longer hold for deadargelim (since it is now 
allowed to canonicalize return values).

Add a test that checks if return value and function attributes are not removed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53612 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-15 14:57:01 +00:00
Matthijs Kooijman
2439911ac5 Add a testcase for the canonicalizations now performed by deadargelim. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53611 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-15 14:42:58 +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