Commit Graph

5450 Commits

Author SHA1 Message Date
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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