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Author SHA1 Message Date
Owen Anderson
bd3ba461eb - Fix SelectionDAG to generate correct CFGs. 
- Add a basic machine-level dead block eliminator.

These two have to go together, since many other parts of the code generator are unable to handle the unreachable blocks otherwise created.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54333 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-04 23:54:43 +00:00
Eli Friedman
b42a626122 PR2621: Improvements to the SCEV AddRec binomial expansion. This 
version uses a new algorithm for evaluating the binomial coefficients 
which is significantly more efficient for AddRecs of more than 2 terms 
(see the comments in the code for details on how the algorithm works).  
It also fixes some bugs: it removes the arbitrary length restriction for 
AddRecs, it fixes the silent generation of incorrect code for AddRecs 
which require a wide calculation width, and it fixes an issue where we 
were incorrectly truncating the iteration count too far when evaluating 
an AddRec expression narrower than the induction variable.

There are still a few related issues I know of: I think there's 
still an issue with the SCEVExpander expansion of AddRec in terms of
the width of the induction variable used.  The hack to avoid generating 
too-wide integers shouldn't be necessary; instead, the callers should be 
considering the cost of the expansion before expanding it (in addition 
to not expanding too-wide integers, we might not want to expand 
expressions that are really expensive, especially when optimizing for 
size; calculating an length-17 32-bit AddRec currently generates about 250 
instructions of straight-line code on X86).  Also, for long 32-bit 
AddRecs on X86, CodeGen really sucks at scheduling the code.  I'm planning on 
filing follow-up PRs for these issues.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54332 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-04 23:49:06 +00:00
Dan Gohman
6f498b0a8e Fix SDISel lowering of PHI nodes to use ComputeValueVTs. 
This allows it to work correctly on aggregate values.
This fixes PR2623.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54331 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-04 23:42:46 +00:00
Dan Gohman
1f565bcff6 Fix SDISel lowering of zeroinitializer and undef to use ComputeValueVTs. 
This allows it to work correctly on nested aggregate values.
This fixes PR2625.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54330 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-04 23:30:41 +00:00
Dan Gohman
d0859943ac Add an assert to catch invalid VECTOR_SHUFFLE mask indices. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54329 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-04 23:09:15 +00:00
Bruno Cardoso Lopes
f7f3b50cd8 Mips ISelLowering cleanup : Removed old LowerCALL and FORMAL_ARGS helpers, they 
aren't used anyway, they also used to broke compiling when fastcc was specified for a
function, but not anymore.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54316 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-04 07:12:52 +00:00
Bruno Cardoso Lopes
ea9d4d6ab0 Handle i32->f32 bitconvert results. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54315 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-04 06:44:31 +00:00
Andrew Lenharth
08ca62bb6f Add atomic sub for other sizes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54314 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-03 20:17:34 +00:00
Chris Lattner
e594fd473e Emit saveri with the correct operand order, patch by Richard Pennington! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54313 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-03 18:16:14 +00:00
Bruno Cardoso Lopes
64cf160fef Fix PR2615 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54312 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-03 15:37:43 +00:00
Bruno Cardoso Lopes
91ef849e6c Improved asm inline for hi,lo results 
Added hi,lo registers to be used,def implicitly. This provides better handle of
instructions which use hi/lo.
Fixes a small BranchAnalysis bug


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54274 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-02 19:42:36 +00:00
Bruno Cardoso Lopes
1906c5a63b Apply the same pattern used in 'and' lowering for 'or' 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54273 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-02 19:37:33 +00:00
Duncan Sands
58921feaa9 Fix comment typos. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54266 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-01 12:23:49 +00:00
Bruno Cardoso Lopes
7bd7182e21 Expand fcopysign 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54250 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-31 18:50:54 +00:00
Bruno Cardoso Lopes
772837778b Handle more SELECT corner cases considering legalize types, probabily wont work with 
the default legalizer.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54249 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-31 18:31:28 +00:00
Dale Johannesen
7232464bda Add a flag to disable jump table generation (all 
switches use the binary search algorithm) for
environments that don't support it.  PPC64 JIT
is such an environment; turn the flag on for that.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54248 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-31 18:13:12 +00:00
Dan Gohman
75dcf08243 Improve dagcombining for sext-loads and sext-in-reg nodes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54239 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-31 00:50:31 +00:00
Bruno Cardoso Lopes
7030ae7728 Added pattern for floating point zero immediate (avoiding a constant pool 
access).
Added pattern to match bitconvert node.
Fixed MTC1 asm string bug.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54229 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-30 19:00:31 +00:00
Dan Gohman
0b12aef490 Move SelectionDAG::viewGraph() out of line; as an inline function 
it isn't always visible to gdb.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54228 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-30 18:48:53 +00:00
Dan Gohman
90d33ee746 Don't look for leaf values to store when lowering stores of 
empty structs. This fixes PR2612.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54226 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-30 18:36:51 +00:00
Owen Anderson
d723f722b2 Use existing LiveInterval methods to simplify live interval merging. Thanks to Evan for pointing these out. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54225 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-30 18:27:35 +00:00
Dan Gohman
11ba3b1af6 Reapply r54147 with a constraint to only use the 8-bit 
subreg form on x86-64, to avoid the problem with x86-32
having GPRs that don't have 8-bit subregs.

Also, change several 16-bit instructions to use 
equivalent 32-bit instructions. These have a smaller
encoding and avoid partial-register updates.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54223 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-30 18:09:17 +00:00
Owen Anderson
912923925f Value numbers whose def index is a special sentinel value should not be remapped. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54218 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-30 17:42:47 +00:00
Bruno Cardoso Lopes
4b877ca1c5 Fixed bug in global address lowering for functions and in Brcond lowering 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54215 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-30 17:06:13 +00:00
Bruno Cardoso Lopes
ea7930e618 Removed small section flag for mips, the assembler doesnt support this flag 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54214 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-30 17:04:04 +00:00
Bruno Cardoso Lopes
d3a680dda5 Added new features to represent specific instructions groups 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54213 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-30 17:01:06 +00:00
Bruno Cardoso Lopes
f7d66f7345 Instruction definition cleanup 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54212 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-30 16:58:59 +00:00
Mon P Wang
e3b3a7241c Added support for overloading intrinsics (atomics) based on pointers 
to different address spaces.  This alters the naming scheme for those
intrinsics, e.g., atomic.load.add.i32 => atomic.load.add.i32.p0i32


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54195 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-30 04:36:53 +00:00
Eli Friedman
1fbffe0cef Another SCEV issue from PR2607; essentially the same issue, but this 
time applying to the implicit comparison in smin expressions. The 
correct way to transform an inequality into the opposite 
inequality, either signed or unsigned, is with a not expression.

I looked through the SCEV code, and I don't think there are any more 
occurrences of this issue.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54194 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-30 04:36:32 +00:00
Owen Anderson
9382b9310f More fixes for corner cases when remapping live range indices. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54186 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-30 00:22:56 +00:00
Owen Anderson
b9fb8d1e69 When merging live intervals, we also need to merge in any live ranges that are inputs to two-address instructions 
that themselves define a range we already care about.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54185 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-30 00:21:16 +00:00
Eli Friedman
068acc3caa Fix for PR2607: SCEV miscomputing the loop count for loops with an 
SGT exit condition.  Essentially, the correct way to flip an inequality 
in 2's complement is the not operator, not the negation operator.  
That said, the difference only affects cases involving INT_MIN.

Also, enhance the pre-test search logic to be a bit smarter about 
inequalities flipped with a not operator, so it can eliminate the smax 
from the iteration count for simple loops.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54184 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-30 00:04:08 +00:00
Owen Anderson
83ea1f8e19 When merging a PHI operand's live interval into the PHI's live interval, we need to merge over all liveranges in 
the operand's interval that share the relevant value number, not just the range that immediately precedes the PHI.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54174 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-29 21:17:08 +00:00
Owen Anderson
a0c032f9b2 Don't decrement the BB remap when we don't need to. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54173 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-29 21:15:44 +00:00
Duncan Sands
68d4d1d49c Fix PR2609. If a label is deleted, then it needs 
to be marked invalid regardless of whether it is
a debug, an exception handling or (hopefully) a
GC label.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54172 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-29 20:56:02 +00:00
Bruno Cardoso Lopes
97843cdb0b Changed some methods order. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54169 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-29 19:29:50 +00:00
Nate Begeman
24dc346a16 Fix broken CellSPU lowering, re-instate braces in Legalize 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54168 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-29 19:07:27 +00:00
Bruno Cardoso Lopes
6d399bdea2 Added floating point lowering for select. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54167 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-29 19:05:28 +00:00
Nate Begeman
f09d131126 Disable a fix in the previous patch, since it breaks CellSPU. 
The CellSPU codegen is broken, but needs to be fixed before we can
put this back in.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54164 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-29 18:28:31 +00:00
Nate Begeman
5bc1ea0736 Add vector shifts to the IR, patch by Eli Friedman. 
CodeGen & Clang work coming next.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54161 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-29 15:49:41 +00:00
Matthijs Kooijman
75cf9cc527 Add -unroll-allow-partial command line option that enabled the loop unroller to 
partially unroll a loop when fully unrolling would not fit under the threshold.

Patch by Mikael Lepistö.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54160 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-29 13:21:23 +00:00
Matthijs Kooijman
477f5a2f11 Restructure ArgumentPromotion a bit. Instead of just having a single boolean 
that says "unconditional loads from this argument are safe", we now keep track
of the safety per set of indices from which loads happen. This prevents
ArgPromotion from promoting loads that aren't really valid. As an added effect,
this will now disregard the the type of the indices passed to a GEP, so
"load GEP %A, i32 1" and "load GEP %A, i64 1" will result in a single argument,
not two.

This fixes PR2598, for which a testcase has been added as well.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54159 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-29 10:00:13 +00:00
Matthijs Kooijman
e2afdedec5 Add a GetElementPtrInst::getIndexedType that accepts uint64_t's instead of just Value*'s. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54157 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-29 08:46:11 +00:00
Evan Cheng
60b75f462e Fix for PR2578. Do not split off a block whose size is less than FreeRangeHeader::getMinBlockSize(). Patch by Damien. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54152 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-29 07:38:32 +00:00
Dan Gohman
7ba145b0b4 Revert 54147. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54148 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-29 01:02:18 +00:00
Dan Gohman
b1e8cad61e Add x86 isel patterns to match what would be a ZERO_EXTEND_INREG operation, 
which is represented in codegen as an 'and' operation. This matches them
with movz instructions, instead of leaving them to be matched by and
instructions with an immediate field.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54147 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-28 22:18:25 +00:00
Dan Gohman
fed90b6d09 Fold the useful features of alist and alist_node into ilist, and 
a new ilist_node class, and remove them. Unlike alist_node,
ilist_node doesn't attempt to manage storage itself, so it avoids
the associated problems, including being opaque in gdb.

Adjust the Recycler class so that it doesn't depend on alist_node.
Also, change it to use explicit Size and Align parameters, allowing
it to work when the largest-sized node doesn't have the greatest
alignment requirement.

Change MachineInstr's MachineMemOperand list from a pool-backed
alist to a std::list for now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54146 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-28 21:51:04 +00:00
Owen Anderson
80e051dfde Don't remove volatile loads. Thanks to Duncan for noticing this one. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54144 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-28 20:52:42 +00:00
Bruno Cardoso Lopes
f33bc43c9a Disable gp_rel relocation for constant pools access for now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54142 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-28 19:26:25 +00:00
Duncan Sands
53388fcde6 Since build_vector is a variadic node, the number 
of operands should be -1 not 0.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54141 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-28 19:17:21 +00:00
Bruno Cardoso Lopes
85e31e3a53 Added floating point lowering for setcc and brcond. 
Fixed COMM asm directive usage.
ConstantPool using custom FourByteConstantSection.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54139 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-28 19:11:24 +00:00
Dan Gohman
0471a79f20 Fix a typo in a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54136 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-28 18:43:51 +00:00
Owen Anderson
8aa895b19a Add support for eliminating stores that store the same value that was just loaded. 
This fixes PR2599.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54133 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-28 16:14:26 +00:00
Owen Anderson
d4310a5d41 Fix a subtle bug when removing instructions from memdep. In very specific 
circumstances we could end up remapping a dependee to the same instruction 
that we're trying to remove.  Handle this properly by just falling back to
a conservative solution.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54132 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-28 16:00:58 +00:00
Bill Wendling
1a53eadbff Remove <iostream> include. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54131 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-27 23:18:30 +00:00
Dan Gohman
29cdb26bba Make the ScheduleDAG's GraphRoot edge be blue and dashed too, like 
the SelectionDAG's.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54129 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-27 22:46:49 +00:00
Dan Gohman
475871a144 Rename SDOperand to SDValue. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54128 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-27 21:46:04 +00:00
Dan Gohman
8968450305 Tidy SDNode::use_iterator, and complete the transition to have it 
parallel its analogue, Value::value_use_iterator. The operator* method
now returns the user, rather than the use.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54127 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-27 20:43:25 +00:00
Dan Gohman
2a6299543f Rename isOnlyUseOf to isOnlyUserOf. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54124 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-27 18:06:42 +00:00
Duncan Sands
4ddc41e58c Some binary operations were being treated as 
unary operations!  Add support for softening
some additional unary operations like fp_to_sint.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54122 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-27 12:28:43 +00:00
Owen Anderson
a279a896ec Fix the issues originally addressed in r54070. After thinking about it some more, I realized that the right thing to do 
is to have StrongPHIElimination use its knowledge of the PHIs before they're erased to update the intervals appropriate.  This is
both simpler and more accurate than the alternative, which was having LIA figure it out when it renumbered things, plus it's just
the right thing to do!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54077 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-25 23:38:08 +00:00
Owen Anderson
0a7615af25 Revert my previous patch. In retrospect, this is completely the wrong way to fix this problem. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54072 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-25 23:06:59 +00:00
Owen Anderson
0c525ca72f Special cases are needed in renumbering when dealing with renumbering after a PHI has been removed. The interval previously defined 
by the PHI needs to be extended to the beginning of its basic block, and the intervals that were inputs need to be trimmed to the end 
of their basic blocks.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54070 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-25 22:32:01 +00:00
Owen Anderson
020decc2b4 In order to avoid reprocessing a register more than once, we need to add it 
to the handled set so it will get filtered out in future iterations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54065 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-25 21:35:43 +00:00
Owen Anderson
55c64358d1 Remove live interval entries for an interval if we're eliminating its only VN. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54062 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-25 21:08:41 +00:00
Owen Anderson
8d0cc0af5a Properly remap live ranges whose end indices are the end of the function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54061 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-25 21:07:13 +00:00
Owen Anderson
d7dcbecdbc Make the remapping of interval indices (particularly ending indices) more robust. 
This is tricky business, and will probably take a few more iterations to get
the last kinks out of it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54043 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-25 19:50:48 +00:00
Nate Begeman
fb8ead0c20 Disable mov{L, LP, HP, HLP, *DUP} shuffles for mmx 
mmx needs its own fancy shuffle logic based on unpack; for now we get correct but awful code.

Also commit Mon Ping's VSETCC patch


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54039 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-25 19:05:58 +00:00
Nate Begeman
ff795a80a3 Remove unnecessary implicit argument 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54031 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-25 17:56:27 +00:00
Nate Begeman
b5557abcf1 Fix minor issues with VICmp/VFCmp constant expressions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54030 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-25 17:35:37 +00:00
Nate Begeman
beb572b698 Fit in 80 cols 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54029 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-25 17:34:41 +00:00
Nate Begeman
0abbe2bf15 Allow verifier to be run on partially materialized modules. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54028 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-25 17:28:23 +00:00
Nate Begeman
5f6ae30de5 Remove dead PatLeaf; there are a number of issues around MMX movl that need to be fixed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54026 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-25 17:25:04 +00:00
Nate Begeman
b4ab9d69da Tab removal 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54025 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-25 17:24:13 +00:00
Dan Gohman
4c8f87038d Disable the new aggressive remat logic introduced in 54000; it causes some 
regressions, such as PR2595. Also, there is a significant code-quality
issue in SPEC 464.h264ref and a few others.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54014 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-25 15:08:37 +00:00
Mon P Wang
92879f3a9e When splitting a vector shuffle, fixed which type we used for the hi part 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54007 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-25 01:30:26 +00:00
Evan Cheng
d1b3da621b Teach ARM isLegalAddressingMode to handle unknown type without crashing. This fixes pr2589. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54004 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-25 00:55:17 +00:00
Dan Gohman
8b4588fa64 Use AliasAnalysis::pointsToConstantMemory in SDISel to avoid unnecessary 
dependencies with constant load nodes. This allows them to be scheduled
freely.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54001 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-25 00:04:14 +00:00
Dan Gohman
6d69ba8a69 Enable rematerialization of constants using AliasAnalysis::pointsToConstantMemory, 
and knowledge of PseudoSourceValues. This unfortunately isn't sufficient to allow
constants to be rematerialized in PIC mode -- the extra indirection is a
complication.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54000 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-25 00:02:30 +00:00
Dan Gohman
3eee6542f5 Put the LICM of constant GlobalVariables, introduced in r53945, under a 
command-line option, and disable it by default. It introduced performance
regressions because CodeGen is currently not able to remat such loads.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53997 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-24 23:57:25 +00:00
Dan Gohman
9f8d5715b1 Avoid emitting casts in static initializer contexts. This fixes 
large numbers of CBE regressions caused by r53958.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53990 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-24 17:57:48 +00:00
Owen Anderson
c12417edc9 Store the predecessor MBB in the PHIUnion, rather than an index, since the indices will change after renumbering. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53985 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-24 17:12:16 +00:00
Evan Cheng
982a05955a Fix a catastrophic PPC64 ABI bug: i32 operands which are passed in memory (all of the parameter registers are used) are loaded from sp offsets that were off by 4. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53979 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-24 08:17:07 +00:00
Devang Patel
bdfa9ac445 Create temp. file in current path. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53973 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-24 00:35:38 +00:00
Evan Cheng
1bf9a18834 Rename instance variables, parameter argument names to eliminate a bunch of compilation warnings with -Wshadow. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53970 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-24 00:08:56 +00:00
Owen Anderson
7fbad27cfb Enable the insertion of empty indices into LiveInterals, thereby making renumbering possible. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53961 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-23 21:37:49 +00:00
Owen Anderson
496bac5b08 Fix a compile-time regression introduced by my heuristic-changing patch. I forgot 
to multiply the instruction count by a constant factor in a few places, which
caused the register allocator to require many more iterations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53959 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-23 19:47:27 +00:00
Dan Gohman
1a24539405 Use C99 aggregate literal syntax for first-class struct and array values. 
This fixes several recent CBE regressions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53958 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-23 18:41:03 +00:00
Bruno Cardoso Lopes
92e87f2379 Minor fixes. 
Added ConstantPool support.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53951 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-23 16:01:50 +00:00
Chris Lattner
967948b4e2 "Allow LICM to sink or lift loads from constant memory. Also add a test 
case for this.

This allows instructions like loads from global variables declared to
be constant to be moved out of loops."

Patch by Stefanus Du Toit!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53945 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-23 05:06:28 +00:00
Dan Gohman
1a570244f0 Update the generated .cvs files. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53943 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-23 00:54:54 +00:00
Dan Gohman
fc74abfba5 Enable first-class aggregates support. 
Remove the GetResultInst instruction. It is still accepted in LLVM assembly
and bitcode, where it is now auto-upgraded to ExtractValueInst. Also, remove
support for return instructions with multiple values. These are auto-upgraded
to use InsertValueInst instructions.

The IRBuilder still accepts multiple-value returns, and auto-upgrades them
to InsertValueInst instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53941 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-23 00:34:11 +00:00
Evan Cheng
5e6ebaf4d1 Fix PR2485: do all 4-element SSE shuffles in max. of 2 shuffle instructions. 
Based on patch by Nicolas Capens.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53939 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-23 00:22:17 +00:00
Duncan Sands
11e56cb4dc LegalizeTypes support for VSETCC. Fixes PR2575. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53938 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-22 23:54:03 +00:00
Owen Anderson
a1566f2e12 Change the heuristics used in the coalescer, register allocator, and within 
live intervals itself to use an instruction count approximation that is 
not affected by inserting empty indices.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53937 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-22 22:46:49 +00:00
Evan Cheng
ace3c17798 Factor out SSE 4 wide shuffle lowering code into its own function. No functionality changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53933 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-22 21:13:36 +00:00
Evan Cheng
2925786765 Fix pr2566: incorrect assumption about bit_convert. It doesn't not have to output a vector value. Patch by Nicolas Capens! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53932 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-22 20:42:56 +00:00
Devang Patel
ce8fdf105c While creating temp. file on disk, if the current filename points to a existing directory then create new temp. file inside the directory. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53929 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-22 20:02:39 +00:00
Evan Cheng
52672b813e Fix PR2574: implement v2f32 scalar_to_vector. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53927 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-22 18:39:19 +00:00
Devang Patel
54ce536a2d Handle bitcode wrappers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53924 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-22 18:00:36 +00:00
Dan Gohman
694caf56f1 Make the GraphRoot edge look like a chain edge, which is more accurate, 
and use the right result number, in the off chance that the graph root
has multiple result values.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53923 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-22 17:52:59 +00:00
Anton Korobeynikov
04dda73926 Provide default implementation of different small-sections related stuff 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53920 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-22 17:09:59 +00:00
Anton Korobeynikov
0980980174 Tie small stuff to non-small by default on ELF platforms 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53919 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-22 17:09:41 +00:00
Bruno Cardoso Lopes
c92a0e90b7 simplified small section logic 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53912 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-22 16:24:21 +00:00
Anton Korobeynikov
f88a6faf93 Fix encoding of atomic compare and swap for i64 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53911 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-22 16:22:48 +00:00
Bruno Cardoso Lopes
feb95cc7e3 Added small section asm emition logic for mips. 
Fixed small bug.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53908 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-22 15:34:27 +00:00
Bruno Cardoso Lopes
62d590cc8e Basic support for small sections 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53907 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-22 15:26:53 +00:00
Bill Wendling
829487e7c9 Remove another tab. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53904 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-22 08:54:38 +00:00
Bill Wendling
bbf2e06f73 More tab removals. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53903 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-22 08:50:44 +00:00
Bill Wendling
c91d0b9bdd Another buildbot test commit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53896 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-22 00:53:37 +00:00
Dan Gohman
62bdec0de3 Fix a typo in a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53894 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-22 00:52:04 +00:00
Dan Gohman
ceab39f0b7 Fix multiple-return-value-to-first-class-aggregates autoupgrade to 
correctly handle the case where multiple-return-value constructs
were used to return one or zero values.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53890 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-22 00:36:48 +00:00
Bill Wendling
4e97401e1f Trivial check-in to test buildbot. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53889 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-22 00:28:47 +00:00
Dan Gohman
e089160d10 InsertValue and ExtractValue constant expressions are always 
folded. Remove code that handled the case where they aren't
folded, and remove bitcode reader/writer support for them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53887 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-21 23:30:30 +00:00
Dan Gohman
79acd2b51f Fix grammaros in comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53884 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-21 22:38:59 +00:00
Dan Gohman
7375fbcbf2 Fix a bug in LSR's dead-PHI cleanup. If a PHI has a def-use chain that 
leads into a cycle involving a different PHI, LSR got stuck running
around that cycle looking for the original PHI. To avoid this, keep
track of visited PHIs and stop searching if we see one more than once.
This fixes PR2570.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53879 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-21 21:45:02 +00:00
Dan Gohman
358033102f Enhance the GraphWriter support for edge destinations, and teach the 
SelectionDAG graph writer to make use of them. Now, nodes with multiple
values are displayed as such, with incoming edges pointing to the
specific value they use.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53875 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-21 21:06:55 +00:00
Dan Gohman
2dbc167294 After early-lowering the FORMAL_ARGUMENTS node, delete it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53874 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-21 21:04:07 +00:00
Evan Cheng
a022bdfd99 Eliminate a compilation warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53873 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-21 20:02:45 +00:00
Dan Gohman
462dc7f496 Add titles to the various SelectionDAG viewGraph calls 
that include useful information like the name of the
block being viewed and the current phase of compilation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53872 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-21 20:00:07 +00:00
Dan Gohman
80f3d46968 Fix uses of underscore-capital names. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53870 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-21 19:48:15 +00:00
Bruno Cardoso Lopes
91fd532eb9 Added initial support for small sections on Mips. 
Added gp_rel relocations to support addressing small section contents.
Added command line to specify small section threshold in bytes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53869 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-21 18:52:34 +00:00
Dan Gohman
6116a73da4 Now that the MachineInstr leaks are fixed, enable leak checking 
in the MachineInstr clone code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53868 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-21 18:47:29 +00:00
Anton Korobeynikov
9685506c4f Use better variable names 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53859 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-21 18:29:23 +00:00
Anton Korobeynikov
d493b043c4 Don't use larger alignment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53857 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-21 18:25:17 +00:00
Duncan Sands
d038e04188 Add VerifyNode, a place to put sanity checks on 
generic SDNode's (nodes with their own constructors
should do sanity checking in the constructor).  Add
sanity checks for BUILD_VECTOR and fix all the places
that were producing bogus BUILD_VECTORs, as found by
"make check".  My favorite is the BUILD_VECTOR with
only two operands that was being used to build a
vector with four elements!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53850 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-21 10:20:31 +00:00
Evan Cheng
41c0840583 Use movaps instead of movups to spill 16-byte vector values when default alignment is >= 16. This fixes some massive performance regressions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53844 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-21 06:34:17 +00:00
Nick Lewycky
9e13cbc171 Revert r53812 -- premature. LegalizeTypes isn't actually on yet! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53816 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-21 04:03:00 +00:00
Nick Lewycky
2ceb40f3da Switch on the use of arbitrary precision integers in scalar evolution. This will 
bail after 256-bits to avoid producing code that the backends can't handle.
Previously, we capped it at 64-bits, preferring to miscompile in those cases.

This change also reverts much of r52248 because the invariants the code was
expecting are now being met.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53812 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-21 02:51:31 +00:00
Wojciech Matyjewicz
8b82c49084 This header isn't necessary now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53811 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-20 17:35:32 +00:00
Wojciech Matyjewicz
de0f2382e4 Fix PR2088. Use modulo linear equation solver to compute loop iteration 
count.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53810 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-20 15:55:14 +00:00
Bill Wendling
3180e20cda Fix for first part of PR2562. Generate the "pinsrw" instruction for inserts 
into v4i16 vectors.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53807 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-20 02:32:23 +00:00
Bill Wendling
fbbd701bbd Pull r53795 from Gaz into mainline: 
If .loc and .file aren't used, always emit the "debug_line" section. This
requires at least one entry in the line matrix. So if there's nothing to emit
into the matrix, emit an end of matrix value anyway.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53803 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-20 00:11:19 +00:00
Anton Korobeynikov
badd8df972 Unbreak build: 'DarwinTargetAsmInfo' was already taken as PPC TAI flavour. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53801 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-19 21:44:57 +00:00
Duncan Sands
a7360f0178 Make sure custom lowering for LegalizeTypes 
returns a node with the right number of
return values.  This fixes codegen of
Generic/cast-fp.ll, Generic/fp_to_int.ll
and PowerPC/multiple-return-values.ll
when using -march=ppc32 -mattr=+64bit.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53794 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-19 16:26:02 +00:00
Anton Korobeynikov
055a76bb51 Use chars, where possible 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53791 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-19 13:16:32 +00:00
Anton Korobeynikov
ae408e6f1e Switch MIPS to new ELFTargetAsmInfo. Add few FIXMEs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53790 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-19 13:16:11 +00:00
Anton Korobeynikov
cff2ea06af Fix a FIXME :) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53789 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-19 13:15:46 +00:00
Anton Korobeynikov
18f6ed9c29 Use generic ELFTargetAsmInfo and DarwinTargetAsmInfo for X86 code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53788 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-19 13:15:21 +00:00
Anton Korobeynikov
745e864eab Add TargetAsmInfo stuff for all darwin-based targets 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53787 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-19 13:14:46 +00:00
Anton Korobeynikov
debe34bd8d Add TargetAsmInfo for all ELF-based targets 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53786 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-19 13:14:11 +00:00
Anton Korobeynikov
88bbf6941f Use aligned stack spills, where possible. This fixes PR2549. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53784 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-19 06:30:51 +00:00
Evan Cheng
1ed9922794 Fix a memory leak in LiveIntervalAnalysis. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53779 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-19 00:37:25 +00:00
Duncan Sands
c3e26727c1 Softfloat support for FDIV. Patch by 
Richard Pennington.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53773 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-18 21:18:48 +00:00
Duncan Sands
f8ac645c59 Eliminate unused variable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53772 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-18 21:07:41 +00:00
Duncan Sands
6c4d8e3ee4 Supress a gcc-4.3 warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53771 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-18 21:06:02 +00:00
Duncan Sands
77926da196 Revert 53729, after waking up in the middle of 
the night realising that it was wrong :)  I
think the reason the same type was being used
for the shufflevec of indices as for the actual
indices is so that if one of them needs splitting
then so does the other.  After my patch it might
be that the indices need splitting but not the
rest, yet there is no good way of handling that.
I think the right solution is to not have the
shufflevec be an operand at all: just have it
be the list of numbers it actually is, stored
as extra info in the node.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53768 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-18 20:12:05 +00:00
Dan Gohman
5a11abaf2c In the CBackend, use casts to force integer add, subtract, and 
multiply to be done as unsigned, so that they have well defined
behavior on overflow. This fixes PR2408.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53767 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-18 18:43:12 +00:00
Dan Gohman
fa82857e41 Fix a LocalSpiller leak. This fixes tramp3d-v4. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53766 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-18 18:28:56 +00:00
Owen Anderson
e98c54c47c Make PRE actually handle critical edges (by splitting them). Confirmed that bootstrap passes with this change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53762 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-18 18:03:38 +00:00
Owen Anderson
cfa94198d5 Reapply r53735. My last patch fixed the failures Dan observed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53761 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-18 17:49:43 +00:00
Owen Anderson
3ecaf1b339 Add some checks that got lost in the shuffle. This fixes 464.h264ref. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53760 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-18 17:46:41 +00:00
Dan Gohman
79c23effe2 Revert r53735. It broke SPEC 464.h264ref. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53757 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-18 16:44:49 +00:00
Chris Lattner
0c141e6673 verify limits-fndefn.c from the GCC testsuite before the 
heat death of the universe, fixing an O(N^2) problem in the
size of a basic block.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53749 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-18 05:23:39 +00:00
Dan Gohman
2c3f7ae384 Re-introduce LeakDetector support for MachineInstrs and MachineBasicBlocks. 
Fix a leak that this turned up in LowerSubregs.cpp.
And, comment a leak in LiveIntervalAnalysis.cpp.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53746 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-17 23:49:46 +00:00
Dan Gohman
dc5f936bf8 When printing MemOperand nodes, only use print() for 
PseudoSourceValue values, which never have names. Use getName()
for all other values, because we want to print just a short summary
of the value, not the entire instruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53738 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-17 21:12:16 +00:00
Owen Anderson
f7d3ecf091 Use MergeBlockIntoPredecessor to simplify some code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53735 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-17 20:00:46 +00:00
Evan Cheng
76a4d58998 Subreg live interval valno may not have a corresponding def machineinstr since it's less precise. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53734 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-17 19:48:53 +00:00
Owen Anderson
11f2ec8eb5 Make MergeBlockIntoPredecessor more aggressive when the same successor appears 
more than once.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53731 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-17 19:42:29 +00:00
Owen Anderson
c2b856e5b4 Enable PRE. My last batch of changes fixed the miscompile. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53730 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-17 19:41:00 +00:00
Duncan Sands
f1bb7f1d3e Use a legal type for elements of the vector_shuffle 
mask.  These are just indices into the shuffled vector
so their type is unrelated to the type of the
shuffled elements (which is what was being used before).
This fixes vec_shuffle-11.ll when using LegalizeTypes.
What seems to have happened is that Dan's recent change
r53687, which corrected the result type of the shuffle,
somehow caused LegalizeTypes to notice that the mask
operand was a BUILD_VECTOR with a legal type but elements
of an illegal type (i64).  LegalizeTypes legalized this
by introducing a new BUILD_VECTOR of i32 and bitcasting
it to the old type.  But the mask operand is not supposed
to be a bitcast but a straight BUILD_VECTOR of constants,
causing a crash.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53729 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-17 19:28:41 +00:00
Dan Gohman
e8be6c6391 Add a new function, ReplaceAllUsesOfValuesWith, which handles bulk 
replacement of multiple values. This is slightly more efficient
than doing multiple ReplaceAllUsesOfValueWith calls, and theoretically
could be optimized even further. However, an important property of this
new function is that it handles the case where the source value set and
destination value set overlap. This makes it feasible for isel to use
SelectNodeTo in many very common cases, which is advantageous because
SelectNodeTo avoids a temporary node and it doesn't require CSEMap
updates for users of values that don't change position.

Revamp MorphNodeTo, which is what does all the work of SelectNodeTo, to
handle operand lists more efficiently, and to correctly handle a number
of corner cases to which its new wider use exposes it.

This commit also includes a change to the encoding of post-isel opcodes
in SDNodes; now instead of being sandwiched between the target-independent
pre-isel opcodes and the target-dependent pre-isel opcodes, post-isel
opcodes are now represented as negative values. This makes it possible
to test if an opcode is pre-isel or post-isel without having to know
the size of the current target's post-isel instruction set.

These changes speed up llc overall by 3% and reduce memory usage by 10%
on the InstructionCombining.cpp testcase with -fast and -regalloc=local.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53728 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-17 19:10:17 +00:00
Duncan Sands
79ada108dd LegalizeTypes support for what seems to be the 
only missing ppc long double operations: FNEG
and FP_EXTEND.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53723 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-17 17:35:14 +00:00
Nate Begeman
29681a5385 Remove unnecessary readme entry 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53722 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-17 17:21:14 +00:00
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
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
Duncan Sands
28c05ac995 There should be no extending loads or truncating 
stores of one-element vectors.  Also, neaten the
handling of INSERT_VECTOR_ELT when the inserted
type is larger than the vector element type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53554 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-14 17:22:31 +00:00
Duncan Sands
d164ea2fb0 Ignore TargetConstant with an illegal type. These 
are used for passing huge immediates in inline ASM
from the front-end straight down to the ASM writer.
Of course this is a hack, but it is simple, limited
in scope, works in practice, and is what LegalizeDAG
does.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53553 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-14 17:15:45 +00:00
Bruno Cardoso Lopes
43d526d162 Added Subtarget support into RegisterInfo 
Added HasABICall and HasAbsoluteCall (equivalent to gcc -mabicall and 
-mno-shared). HasAbsoluteCall is not implemented but HasABICall is the 
default for o32 ABI. Now, both should help into a more accurate 
relocation types implementation. 
Added IsLinux is needed to choose between asm directives.
Instruction name strings cleanup.
AsmPrinter improved.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53551 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-14 14:42:54 +00:00
Duncan Sands
91e1c32dd0 Revert r53540 - it does not compile. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53549 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-14 07:59:28 +00:00
Chris Lattner
6157e383c4 Reimplement LinkFunctionProtos in terms of GetLinkageResult. This fixes 
the second half of link-global-to-func.ll and causes some minor changes in
messages.

There are two TODOs here.  First, this causes a regression in 
2008-07-06-AliasWeakDest.ll, which is now failing (so I xfailed it).  Anton,
I would really appreciate it if you could take a look at this.  It should be
a matter of adding proper alias support to GetLinkageResult, and was probably
already a latent bug that would manifest with globals.

The second todo is to reimplement LinkAlias in the same pattern as 
function and global linking.  This should be pretty straight-forward for 
someone who knows aliases, but isn't a requirement for correctness.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53548 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-14 07:23:24 +00:00
Chris Lattner
ae1132d2b8 don't do any linkage, not even type resolution, of symbols that have 
internal linkage.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53547 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-14 06:52:19 +00:00
Chris Lattner
d1ec48c641 implement linking of globals to functions, in one direction 
(replacing a function with a global).  This is needed when building
llvm itself with LTO on darwin, because of the EXPLICIT_SYMBOL hack
in lib/system/DynamicLibrary.cpp.

Implementation of linking the other way will need to wait for a 
cleanup of LinkFunctionProtos.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53546 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-14 06:49:45 +00:00
Chris Lattner
0bb8757997 wrap long lines, remove some code from a non-assert build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53545 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-14 05:52:33 +00:00
Chris Lattner
bbedb0e408 Fix a bunch of bugs handling vector compare constant expressions, fixing 
PR2317.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53544 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-14 05:17:31 +00:00
Chris Lattner
071aade5f0 Document and fix Constant::getVectorElements to return an empty vector 
when presented with a constant expr.

If ConstantExpr::getV[IF]Cmp to work when ConstantFoldCompareInstruction
returns an undef or constant expr.  



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53541 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-14 05:10:41 +00:00
Chris Lattner
ac77bfdbd4 If a function calls setjmp, never inline it into other functions. This is 
a hack around the fact that we don't represent the CFG correctly for sj/lj.
It fixes PR2486.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53540 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-14 00:46:56 +00:00
Chris Lattner
4238453135 simplify some code, shuffle and insertelt always return a vector. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53538 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-14 00:32:20 +00:00
Chris Lattner
10c5d36ca9 Add a note. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53535 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-14 00:19:59 +00:00
Chris Lattner
fdb19e5887 Fix PR2506 by being a bit more careful about reverse fact propagation when 
disproving a condition.  This actually compiles the existing testcase
(udiv_select_to_select_shift) to:

define i64 @test(i64 %X, i1 %Cond) {
entry:
	%divisor1.t = lshr i64 %X, 3		; <i64> [#uses=1]
	%quotient2 = lshr i64 %X, 3		; <i64> [#uses=1]
	%sum = add i64 %divisor1.t, %quotient2		; <i64> [#uses=1]
	ret i64 %sum
}

instead of:

define i64 @test(i64 %X, i1 %Cond) {
entry:
	%quotient1.v = select i1 %Cond, i64 3, i64 4		; <i64> [#uses=1]
	%quotient1 = lshr i64 %X, %quotient1.v		; <i64> [#uses=1]
	%quotient2 = lshr i64 %X, 3		; <i64> [#uses=1]
	%sum = add i64 %quotient1, %quotient2		; <i64> [#uses=1]
	ret i64 %sum
}



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53534 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-14 00:15:52 +00:00
Chris Lattner
093a438502 Fix mishandling of the infinite loop case when merging two blocks. This 
fixes PR2540.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53533 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-13 22:23:11 +00:00
Chris Lattner
b824512b8d more refactoring. Use early exits instead of really complex logic. 
No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53532 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-13 22:04:41 +00:00
Chris Lattner
eb388af89f improve comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53531 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-13 21:55:46 +00:00
Chris Lattner
867661ac8b factor another large hunk of code out into its own function. 
No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53530 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-13 21:53:26 +00:00
Chris Lattner
3698909623 Final bit of simplification for FoldBranchToCommonDest. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53528 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-13 21:20:19 +00:00
Chris Lattner
70087f31f1 simplify logic a bit 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53527 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-13 21:15:11 +00:00
Chris Lattner
1347e87c7b Refactor some code out into its own helper function, getting rid of crazy multiline 
conditionals and commenting the code better.

No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53526 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-13 21:12:01 +00:00
Nick Lewycky
59cff12f88 Stop creating extraneous smax/umax in SCEV. This removes a regression where we 
started complicating many loops ('for' loops, in fact).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53508 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-12 07:41:32 +00:00
Nick Lewycky
3ac9e109b2 Enhance analysis of srem. 
Remove dead code analyzing urem. 'urem' of power-of-2 is canonicalized to an
'and' instruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53506 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-12 05:04:38 +00:00
Evan Cheng
5330192ab5 Implement llvm.atomic.cmp.swap.i32 on PPC. Patch by Gary Benson! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53505 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-12 02:23:19 +00:00
Evan Cheng
b9890ae3c3 Typos. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53504 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-12 02:22:07 +00:00
Evan Cheng
79a796c2b1 Fix PR2536: a nasty spiller bug. If a two-address instruction uses a register but the use portion of its live range is not part of its liveinterval, it must be defined by an implicit_def. In that case, do not spill the use. e.g. 
8   %reg1024<def> = IMPLICIT_DEF
12  %reg1024<def> = INSERT_SUBREG %reg1024<kill>, %reg1025, 2

The live range [12, 14) are not part of the r1024 live interval since it's defined by an implicit def. It will not conflicts with live interval of r1025. Now suppose both registers are spilled, you can easily see a situation where both registers are reloaded before the INSERT_SUBREG and both target registers that would overlap.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53503 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-12 01:56:02 +00:00
Evan Cheng
b5eec33dcd Back out 53476 and 53480 for now. Somehow they cause llc to miscompile 179.art. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53502 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-12 01:38:51 +00:00
Dan Gohman
cddc11e757 Add a utility function to MachineInstr for testing whether an instruction 
has exactly one MachineMemOperand, and change some X86 lowering code to
make use of it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53498 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-12 00:10:52 +00:00
Dan Gohman
e6acf36dca Fix spelling of "hierarchy" in comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53489 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-11 22:51:32 +00:00
Dan Gohman
a54cf17661 Include a frame index in the "fixed stack" pseudo source value 
instead of using the frame index for the SVOffset, which was
inconsistent.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53486 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-11 22:44:52 +00:00
Dan Gohman
5e76c3be73 Fix an obsolete top-level comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53481 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-11 22:39:58 +00:00
Dan Gohman
0f4012f475 Factor out debugging code into the common base class. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53480 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-11 22:36:22 +00:00
Dan Gohman
dbe2a5a269 Add support for putting NamedRegionTimers in TimerGroups, and 
use a timer group for the timers in SelectionDAGISel. Also,
Split scheduling out from emitting, to give each their own
timer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53476 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-11 21:54:34 +00:00
Dan Gohman
c418bf3dd5 Use find instead of lower_bound. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53474 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-11 20:58:19 +00:00
Chris Lattner
78d60458d5 add support for returning i128, PR2532. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53472 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-11 20:53:00 +00:00
Dan Gohman
dc2fbddd9d Trim unnecessary #includes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53471 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-11 20:38:31 +00:00
Owen Anderson
c45996bf74 Don't call lookupNumber more than we have to. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53470 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-11 20:05:13 +00:00
Duncan Sands
92e0834ac7 Remove an apparently useless routine: there should 
be no need to split the result of a vector RET node,
since they are always already legal.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53462 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-11 17:02:09 +00:00
Duncan Sands
ac6cecec18 It is pointless to turn a UINT_TO_FP into an 
SINT_TO_FP libcall plus additional operations:
it might as well be a direct UINT_TO_FP libcall.
So only turn it into an SINT_TO_FP if the target
has special handling for SINT_TO_FP.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53461 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-11 17:00:14 +00:00
Duncan Sands
9bed0f58eb Add two missing SINT_TO_FP libcalls. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53460 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-11 16:57:02 +00:00
Duncan Sands
edfba7e707 Port a shift-by-1 optimization from LegalizeDAG: it 
was presumably added after the rest of the code was
copied to LegalizeTypes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53459 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-11 16:54:57 +00:00
Duncan Sands
dddc6291fb Add support for 128 bit shifts and 32 bit shifts 
on 16 bit machines.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53458 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-11 16:52:29 +00:00
Nick Lewycky
7d9843fc37 Document 'mask' in this calculation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53454 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-11 08:16:26 +00:00
Duncan Sands
569d8f7087 Align comments, colons and cases. Remove trailing 
whitespace.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53453 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-11 07:37:30 +00:00
Nick Lewycky
1f26c188f8 Remove misleading constant from comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53452 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-11 07:36:19 +00:00
Nick Lewycky
4bf1e59819 Add another optimization from PR2330. Also catch some missing cases that are 
similar.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53451 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-11 07:20:53 +00:00
Bill Wendling
71ca353ae6 The frame address on an x86-64 box needs to be offset by -8, not -4. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53450 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-11 07:18:52 +00:00
Chris Lattner
d01bee7170 a missed optimization that Eli spotted 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53449 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-11 06:40:29 +00:00
Chris Lattner
f9685ac68e another bug in the same line. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53448 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-11 06:38:16 +00:00
Chris Lattner
a8ff4a88bb fix a bug spotted by Eli's eagle eyes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53447 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-11 06:36:01 +00:00
Chris Lattner
183661e43a simplify and merge a bunch of code. Instead of comparing against 
the min/max values for an integer type, compare against the min/max
values we can prove contain the input.  This might be a tighter bound,
so this is general goodness.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53446 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-11 05:40:05 +00:00
Chris Lattner
84dff672a4 fold away (x <= cst) earlier, allowing us to not have to 
handle them in some code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53445 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-11 05:08:55 +00:00
Chris Lattner
85b5eb0505 Fix folding of icmp's of i1 where the comparison is signed. The code 
was using the algorithm for folding unsigned comparisons which is
completely wrong.  This has been broken since the signless types change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53444 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-11 04:20:58 +00:00
Chris Lattner
f299184565 Fix a bogus optimization: folding (slt (zext i1 A to i32), 1) -> (slt i1 A, true) 
This cause a regression in InstCombine/JavaCompare, which was doing the right
thing on accident.  To handle the missed case, generalize the comparisons based
on masked bits a little bit to handle comparisons against the max value. For 
example, we can now xform (slt i32 (and X, 4), 4) -> (setne i32 (and X, 4), 4)




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53443 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-11 04:09:09 +00:00
Chris Lattner
1913b94c11 regenerate 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53440 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-11 00:30:39 +00:00
Chris Lattner
d15990189d Implement PR2538 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53438 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-11 00:30:06 +00:00
Chris Lattner
c563e1d8fe Fix a bug in the soft-float handling of FCOPYSIGN that Duncan noticed 
when working on legalizetypes.  Both legalizetypes and legalizeops now
produce hte same code for CodeGen/ARM/fcopysign.ll.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53435 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-10 23:46:13 +00:00
Chris Lattner
70587ea813 make legalize types be a command line option: -enable-legalize-types. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53434 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-10 23:37:50 +00:00
Dan Gohman
fdeb4b3f1d Make stack slot coloring's debug output more consistent with 
other passes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53415 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-10 19:49:32 +00:00
Evan Cheng
bdb10fe0f6 Change StackSlotForVirtReg (which maps vregs to frame indices) from std::map to IndexedMap. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53414 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-10 18:23:23 +00:00
Chris Lattner
6291d69c4c Remove extraneous vertical whitespace before Eric gets the wrong idea ;-) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53411 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-10 16:49:53 +00:00
Chris Lattner
85e7ac0353 Fix an altivec constant miscompilation that Duncan found through 
his work on legalizetypes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53410 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-10 16:33:38 +00:00
Duncan Sands
5ac319ac71 Add support for 128 bit multiplicative operations. 
Lack of these caused a bootstrap failure with Fortran
on x86-64 with LegalizeTypes turned on.  While there,
be nice to 16 bit machines and support expansion of
i32 too.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53408 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-10 15:35:05 +00:00
Duncan Sands
be1ad4de29 Add a mysteriously missing libcall, FPTOSINT_F80_I32. 
Be nice to 16 bit machines by supporting FP_TO_XINT
expansion for these.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53407 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-10 15:33:02 +00:00
Duncan Sands
03dc093a2e Fix a FIXME: use an apint in CTTZ legalization. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53406 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-10 15:30:54 +00:00
Duncan Sands
ae099d5442 Remove PromoteIntRes_FP_ROUND - not sure what it 
was doing there: FP_ROUND returns a float, not an
integer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53405 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-10 15:29:55 +00:00
Duncan Sands
c5ffb45934 Make sure the alignment of the temporary created 
in CreateStackStoreLoad is good enough for both
the source and destination types.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53404 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-10 15:26:17 +00:00
Duncan Sands
f4e4629ee8 Make the LegalizeType method naming scheme more regular. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53403 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-10 15:25:04 +00:00
Duncan Sands
e1d97b1a74 Don't barf when dumping a constant that contains 
a ginormous value (eg: i128 -1).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53402 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-10 11:23:14 +00:00
Matthijs Kooijman
d16918f843 Restructure dead argument elimination, try #3 :-) 
Rewrite the DeadArgumentElimination pass, to use a more explicit tracking of
dependencies between return values and/or arguments. Also make the handling of
arguments and return values the same.

The pass now looks properly inside returned structs, but only at the first
level (ie, not inside nested structs).

This version fixed a few more bugs and was cleaned up a bit. It now passes all
of LLVM's testing, and should still pass SPEC2006. There is still a minor bug
with regard to returning nested structs. Since there is currently nothing that
emits such IR, I will fix that in a seperate commit (partly because it requires
a non-trivial fix).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53400 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-10 10:24:08 +00:00
Evan Cheng
ef0732d25a - Change the horrible N^2 isRegReDefinedByTwoAddr. Now callers must supply the operand index of def machineoperand and at most one full scan of non-implicit operands is needed. 
- Change local register allocator to use the new isRegReDefinedByTwoAddr instead of reinventing the wheel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53394 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-10 07:35:43 +00:00
Nick Lewycky
5dcc41f5b3 Fix overzealous optimization. Thanks to Duncan Sands for pointing out my error! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53393 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-10 05:51:40 +00:00
Owen Anderson
743a1e6a9c Use DenseMap instead of std::map in local register allocation. This improves the time on instcombine from .31s to .22s 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53390 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-10 01:56:35 +00:00
Owen Anderson
ecee36ece6 Fix 403.gcc. Finally got the check for two-address-ness correct. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53389 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-10 01:53:01 +00:00
Owen Anderson
c007848b5a Fix the build by adding a #include. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53388 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-10 01:44:27 +00:00
Chris Lattner
5ed2ba2668 The source and dest of an alias are *not* required to have the same type, 
though that would be nice and make sense :).  Patch by Nathan Keynes!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53387 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-10 01:09:33 +00:00
Evan Cheng
331e2bd942 Fix for PR2472. Use movss to set lower 32-bits of a zero XMM vector. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53386 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-10 01:08:23 +00:00
Chris Lattner
ae55e04d7a open plugins with RTLD_GLOBAL, pointed out by Bram Adams. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53385 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-10 00:52:20 +00:00
Chris Lattner
7cc9a4b990 SImplify ConstantVector::get a bit and make it turn a vector 
of all undefs into a single undef value.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53384 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-10 00:44:03 +00:00
Chris Lattner
fea85c46c0 Fix a case where vector comparison constant folding would cause an 
infinite recursion.  part of PR2529


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53383 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-10 00:29:28 +00:00
Chris Lattner
8638144825 add a helper method for code that wants to handle vector 
constants by element without caring how they are formed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53381 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-10 00:28:11 +00:00
Chris Lattner
330e7e4d25 elementwise comparison of vector constants was completely wrong. Fix 
it for PR2529


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53380 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-10 00:08:17 +00:00
Evan Cheng
250c1d8734 - Replace use of std::map<std::string, ..> with StringMap. Replace use of std::map with DenseMap, std::set with SmallPtrSet. This results in minor speed up. 
- Some code clean up.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53379 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-10 00:04:23 +00:00
Owen Anderson
eacdef21c6 Revert r53367, which was breaking things. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53378 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 23:09:10 +00:00
Dan Gohman
b9c33c3229 Simplify hasNUsesOfValue and hasAnyUsesOfValue even more. This 
makes their special-case checks of use_size() less beneficial,
so remove them. This eliminates all but one use of use_size(),
which is in AssignTopologicalOrder, which uses it only once for
each node, and so can reasonably afford to recompute it, as
this allows the UsesSize field of SDNode to be removed
altogether.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53377 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 23:03:14 +00:00
Dan Gohman
1373c1c395 hasAnyUseOfValue can check SDUse nodes of its users directly instead 
of examining every operand of every user.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53374 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 22:39:01 +00:00
Dan Gohman
1ea58a52a4 Move MemoryVT out of LSBaseNode into MemSDNode, allowing the 
getMemOperand function to be moved into the base class as well
and made non-virtual.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53372 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 22:08:04 +00:00
Anton Korobeynikov
7705ea33e4 Remove a FIXME: we really need to use const_data section on darwin for 
constant pool, if relocation model is not static. This directly maps to
the way how GCC works.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53370 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 21:54:26 +00:00
Evan Cheng
d411419422 Avoid creating expensive comment string if it's not going to be printed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53369 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 21:53:02 +00:00
Anton Korobeynikov
ac2673e4ea Add FIXME for future checking. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53368 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 21:38:28 +00:00
Owen Anderson
eb580ee133 Loosen our check here. Local regalloc only cares that the reg is used and def'd by the same instruction, but about the details of 
the relationship.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53367 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 21:34:36 +00:00
Dale Johannesen
03b5ee7762 Remove extra call to DW.SetModuleInfo on Linux. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53365 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 21:33:15 +00:00
Dale Johannesen
d03772466a Emit debug info for data-only files on Cell SPU. 
I cannot test this target, let me know if it breaks!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53363 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 21:25:06 +00:00
Dale Johannesen
757809a170 Emit debug into for data-only files for Linux PPC. 
I cannot test this target, let me know if it breaks!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53362 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 21:24:07 +00:00
Dan Gohman
492f276cbc Move the IsVolatile and SVOffset fields into the MemSDNode base 
class, and store IsVolatile and Alignment in a more compact form.
This makes AtomicSDNode slightly larger, but it shrinks LoadSDNode
and StoreSDNode, which are much more common and are the largest of
the SDNode subclasses. Also, this lets the isVolatile() and
getAlignment() accessors be non-virtual.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53361 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 21:23:02 +00:00
Dale Johannesen
f2452c5f48 Emit debug info for data-only files. ARM version. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53360 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 21:20:54 +00:00
Owen Anderson
dd4b47c9b2 Don't use an expensive check for two-address-ness when we have the information sitting around to determine it much more quickly, 
This speeds up the local register allocator from 0.37s to 0.31s on instcombine.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53359 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 21:15:10 +00:00
Dale Johannesen
7bc39e227f Emit debug info for data-only files. This version 
is X86 ATT only.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53355 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 20:55:35 +00:00
Anton Korobeynikov
b126f3b534 Add missed section 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53354 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 20:47:55 +00:00
Dale Johannesen
94618eb888 Emit debug info for data-only files. This version 
applies to ppc Darwin only.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53353 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 20:43:39 +00:00
Owen Anderson
9094db17b4 Factor local liveness computation out into its own function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53352 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 20:14:53 +00:00
Dan Gohman
85e6815d83 Reuse the MO variable instead of recomputing it in RegAllocLocal. 
Keep RegAllocSimple in sync.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53351 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 20:12:26 +00:00
Anton Korobeynikov
9a06ed9359 Distinguish .const and .const_data on Darwin, when needed. This is somehow crazy :) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53350 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 20:01:42 +00:00
Dan Gohman
88cef2480f Give RegAllocSimple a TargetInstrInfo member to keep it consistent 
with RegAllocLocal.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53347 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 19:56:01 +00:00
Dan Gohman
8849054624 RegAllocLocal has a TargetInstrInfo data member. Use it instead 
of having local variables duplicate it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53346 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 19:55:19 +00:00
Dan Gohman
0383bc014c Use find with std::map, when that's what's needed, instead of lower_bound 
with extra checks.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53344 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 19:51:00 +00:00
Anton Korobeynikov
f56c2f7a4b Weak stuff always goes to coalesced sections on Darwin 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53340 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 19:06:02 +00:00
Dan Gohman
4b9235b149 Remove #include <iostream>. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53333 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 18:08:48 +00:00
Anton Korobeynikov
c5a7e40c74 Add FIXME needed to be resolved later 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53324 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 13:30:02 +00:00
Anton Korobeynikov
7d51edfc08 Use only 'subset' of flags 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53323 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 13:29:44 +00:00
Anton Korobeynikov
a3af0bf4ab Typo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53322 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 13:29:27 +00:00
Anton Korobeynikov
3b48591a84 Revert accidentially added stuff 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53321 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 13:29:08 +00:00
Anton Korobeynikov
0d44ba82b4 First sketch of special section objects 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53320 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 13:28:49 +00:00
Anton Korobeynikov
c5c92f6383 Honour text sections 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53319 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 13:28:19 +00:00
Anton Korobeynikov
c33a744f0e Use isWeakForLinker() hook 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53318 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 13:27:59 +00:00
Anton Korobeynikov
e87f52d722 Switch to new section name handling facility 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53316 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 13:27:16 +00:00
Anton Korobeynikov
7e7fc82cf3 Another bunch of hacks for named sections support 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53315 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 13:26:52 +00:00
Anton Korobeynikov
1290ecf5b9 Typo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53314 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 13:26:24 +00:00
Anton Korobeynikov
87fc6b4f86 Drop mergeable flag, if size is no suitable 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53313 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 13:26:05 +00:00
Anton Korobeynikov
2a889172a4 Fix several bugs in named sections handling 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53312 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 13:25:46 +00:00
Anton Korobeynikov
b20015b621 Add hacky way to distinguish named and named sections. This will be generalized in the future. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53311 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 13:25:26 +00:00
Anton Korobeynikov
5248670096 Use 'gnu.linkonce', where needed 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53310 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 13:24:55 +00:00
Anton Korobeynikov
0e48a0ca16 Fix thinko 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53309 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 13:24:38 +00:00
Anton Korobeynikov
c6f4947d48 Drop dead member reference 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53308 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 13:24:18 +00:00
Anton Korobeynikov
4039e680bc Add funny darwin section selection logic 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53307 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 13:23:57 +00:00
Anton Korobeynikov
01b0e24c25 Handle ELF mergeable sections 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53306 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 13:23:37 +00:00
Anton Korobeynikov
4260ad3e7d Provide section selection for X86 ELF targets 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53305 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 13:23:08 +00:00
Anton Korobeynikov
265c5259ab Provide general hook for section name calculation 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53304 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 13:22:46 +00:00
Anton Korobeynikov
6d82942092 Print entity size for mergeable sections 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53303 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 13:22:17 +00:00
Anton Korobeynikov
f447e3d311 Split PrintSectionFlags 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53302 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 13:21:49 +00:00
Anton Korobeynikov
b9a02fcaf6 Split UniqueSectionForGlobal() 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53301 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 13:21:29 +00:00
Anton Korobeynikov
b9e58efdb9 Split PreferredEHDataFormat hook 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53300 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 13:21:08 +00:00
Anton Korobeynikov
4468b7a988 Split X86TargetAsmInfo into 4 subtarget-specific classes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53299 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 13:20:48 +00:00
Anton Korobeynikov
8210045b9f Whitespace cleanup 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53298 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 13:20:27 +00:00
Anton Korobeynikov
6e405f3f77 Move flag decoding stuff into special hook 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53297 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 13:20:07 +00:00
Anton Korobeynikov
29b03f7375 Properly handle linkonce stuff 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53296 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 13:19:38 +00:00
Anton Korobeynikov
c0f41db19c Provide skeletone code for calculation of section, where global should be emitted into 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53295 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 13:19:08 +00:00
Anton Korobeynikov
a2d330717b Use 'llvm-linkonce' consistently 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53294 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 13:18:38 +00:00
Anton Korobeynikov
0c602469f4 Add default section name resolution routine 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53292 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 13:18:02 +00:00
Anton Korobeynikov
8cc948d228 Constify 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53291 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 13:17:36 +00:00
Anton Korobeynikov
beb9d40900 Add code for default section falgs computation 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53290 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 13:16:59 +00:00
Duncan Sands
dd1c20d258 Remove some unneeded includes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53289 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 12:08:25 +00:00
Duncan Sands
b5508e4237 Redo LegalizeTypes soft float support for 
SINT_TO_FP and UINT_TO_FP.  This now produces
the same code as LegalizeDAG (the previous
code was based on a mistaken idea of what
LegalizeDAG did in this case).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53288 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 12:07:22 +00:00
Duncan Sands
452911c468 Forgot to update the chain result when softening 
loads.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53287 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 11:15:31 +00:00
Duncan Sands
f8568b464f LegalizeTypes soft float support for FP_TO_SINT and 
FP_TO_UINT.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53286 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 11:13:46 +00:00
Duncan Sands
851b1ee83f LegalizeTypes support for powi soft float. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53285 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 11:11:47 +00:00
Duncan Sands
ddc7aa3417 Make the role of MVT::i32 clearer here, and add a 
note since it is not clear whether it is correct.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53284 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 08:07:41 +00:00
Nick Lewycky
d8ad492238 Simplify, suggested by Chris Lattner. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53283 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 07:35:26 +00:00
Nick Lewycky
9ee863ecc0 Fold (a < 8) && (b < 8) into (a|b) < 8 for unsigned less or greater than. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53282 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 07:29:11 +00:00
Evan Cheng
1afe5c3ff8 Missed alignment argument on stores lowered from memcpy. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53281 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 06:38:06 +00:00
Evan Cheng
526be70f94 Back out 53254. It broke ppc debug info codegen. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53280 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 06:36:53 +00:00
Bill Wendling
3e30cbb457 Make the DICountVisitor not a visitor. This keeps us from calling virtual 
functions and junk.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53279 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 06:02:33 +00:00
Bill Wendling
06b8c19957 Silence warning by initializing variable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53278 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 05:55:53 +00:00
Bruno Cardoso Lopes
7728f7e890 Fixed features usage. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53277 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 05:32:22 +00:00
Nick Lewycky
d1f77bf931 Fold ((1 << a) & 1) to (a == 0). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53276 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 05:20:13 +00:00
Chris Lattner
6fa6a32e4e Add a little wrapper header that is put around bc files when emitting 
bc files for modules with a target triple that indicates they are for
darwin.  The reader unconditionally handles this, and the writer could
turn this on for more targets if we care.

This change has two benefits for darwin:

1) it allows us to encode the cpu type of the file in an easy to read
   place that doesn't require decoding the bc file.
2) it works around a bug (IMO) in darwin's AR where it is incapable of
   handling files that are not a multiple of 8 bytes long.  BC files
   are only guaranteed to be multiples of 4 bytes long.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53275 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 05:14:23 +00:00
Chris Lattner
b02b8af378 random bugfix sitting in my tree. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53274 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 05:12:07 +00:00
Bruno Cardoso Lopes
7b76da145b Fixe typos and 80 column size problems 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53272 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 04:45:36 +00:00
Nick Lewycky
b4d1bc989e Reduce x - y to -y when we know the 'x' part will get masked off anyways. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53271 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 04:32:37 +00:00
Bruno Cardoso Lopes
97c2537269 MipsTargetLowering cleanup 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53270 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 04:15:08 +00:00
Nick Lewycky
b0b046848f Remove getValueRange from SCEV. It wasn't doing anything there anyways, and a 
more complete version is now available from the LoopVR pass.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53269 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 03:21:51 +00:00
Dan Gohman
0af8225088 Consistently put quotes around pass names in debugging output. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53268 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 00:50:40 +00:00
Devang Patel
a5e27f8028 If loop induction variable's start value is less then its exit value then do not split the loop. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53265 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 00:12:01 +00:00
Dan Gohman
f877b735ad const-ify SelectionDAG::getNodeValueTypes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53264 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 00:00:42 +00:00
Dan Gohman
4e526b9a5b It's no longer necessary to test if a MachineBasicBlock's 
parent is non-null. It now always is.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53263 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-08 23:59:09 +00:00
Dan Gohman
f1bf29e648 Verify that MachineMemOperand alignment is a non-zero power of 2. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53262 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-08 23:47:04 +00:00
Dan Gohman
9c6e70eca9 Factor out the code for computing an alignment value, and make it 
available to getAtomic in addition to just getLoad and getStore,
to prevent MachineMemOperands with 0 alignment.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53261 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-08 23:46:32 +00:00
Owen Anderson
0966f0f0e4 Fix the build. Apparently MachineInstr& is no longer implicitly convertable to MachineBasicBlock::iterator. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53260 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-08 23:36:37 +00:00
Owen Anderson
491fccc4b4 Make the local register allocator compute (purely local) liveness information for itself 
rather than depending on LiveVariables.  This decreases compile time from:
0.5909s (LV + Regalloc) to 0.421s (just regalloc).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53256 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-08 22:24:50 +00:00
Dale Johannesen
f71cb9b3ed Make debug info come out in data-only files. 
This is a question of the debugging setup code not
being called at the right time, and it's called from
target-dependent code for some reason.  I have only
attempted to fix Darwin, but I'm pretty sure it's
broken elsewhere; I'll leave that to people who can
test it.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53254 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-08 21:56:22 +00:00
Dale Johannesen
33d9b356ab Remove some dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53253 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-08 21:53:43 +00:00
Evan Cheng
71e8685633 Do not CSE DEBUG_LOC, DBG_LABEL, DBG_STOPPOINT, DECLARE, and EH_LABEL SDNode's. This improves compile time slightly at -O0 -g. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53246 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-08 20:06:39 +00:00
Duncan Sands
7ba11c552b Remove custom expansion from LegalizeTypes when doing 
soft float: experiments show that targets aren't
expecting this for results or for operands.  Add
support select/select_cc result soft float and
correct operand soft float for these.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53245 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-08 20:03:24 +00:00
Duncan Sands
3a2eb297af Add missing select_cc libcall line, somehow omitted 
in LegalizeTypes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53244 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-08 20:00:05 +00:00
Chris Lattner
8013954f15 improve comment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53243 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-08 18:47:38 +00:00
Chris Lattner
663ceeb948 Add a new hidden option to the interpreter to cause it to print 
out every volatile load and store.  This is useful for tracking 
down insane volatile memory bugs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53241 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-08 17:25:49 +00:00
Chris Lattner
710429645a Fix PR2496, a really nasty bug which involved sinking volatile loads 
into phis.  This is actually the same bug as PR2262 /
2008-04-29-VolatileLoadDontMerge.ll, but I missed checking the first 
predecessor for multiple successors.  Testcase here:
InstCombine/2008-07-08-VolatileLoadMerge.ll



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53240 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-08 17:18:32 +00:00
Evan Cheng
ab8faba2fb Unbreak C++ tests on x86 Darwin. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53237 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-08 16:40:43 +00:00