Commit Graph

5666 Commits

Author SHA1 Message Date
Owen Anderson
133f10f9bd Clients of addIntervalForSpills expect the added intervals to be returned sorted by starting index.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54939 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-18 19:52:22 +00:00
Owen Anderson
8dc2cbe793 Simplify the fast-patch interval spilling by using MachineRegisterInfo::reg_iterator.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54930 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-18 18:38:12 +00:00
Owen Anderson
d6664311ac Resurrect some ancient code to add spill ranges without attempting folding, remat, or splitting. This code has been updated to current APIs
in so far as it compiles and, in theory, works, but does not take advantage of recent advancements.  For instance, it could be improved by using
MachineRegisterInfo::use_iterator.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54924 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-18 18:05:32 +00:00
Bill Wendling
d3361e996b Don't hoist instructions that have implicit uses or defines. Before, it was
hoisting out some "test" and "cmp" instructions. This was obvious badness.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54908 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-18 00:33:49 +00:00
Gordon Henriksen
8715367182 Don't require Registry specializations to define random static variables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54902 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-17 19:08:34 +00:00
Gordon Henriksen
a08f5186b0 Drop an unnecessary include.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54901 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-17 18:54:05 +00:00
Gordon Henriksen
5eca075b74 Rename some GC classes so that their roll will hopefully be clearer.
In particular, Collector was confusing to implementors. Several
thought that this compile-time class was the place to implement
their runtime GC heap. Of course, it doesn't even exist at runtime.
Specifically, the renames are:

  Collector               -> GCStrategy
  CollectorMetadata       -> GCFunctionInfo
  CollectorModuleMetadata -> GCModuleInfo
  CollectorRegistry       -> GCRegistry
  Function::getCollector  -> getGC (setGC, hasGC, clearGC)

Several accessors and nested types have also been renamed to be
consistent. These changes should be obvious.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54899 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-17 18:44:35 +00:00
Gordon Henriksen
418b6e875f Don't instantiate GC metadata for declarations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54895 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-17 16:18:50 +00:00
Anton Korobeynikov
4a8978b61c Fix merge error
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54891 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-17 13:56:03 +00:00
Anton Korobeynikov
abb247fc03 Move all assembler printing related stuff into new libAsmPrinter
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54885 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-17 13:53:04 +00:00
Anton Korobeynikov
9e422dd4f6 Factor out asmprinters from collector interface.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54884 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-17 13:52:35 +00:00
Gordon Henriksen
5a29c9eed1 Factor GC metadata table assembly generation out of Collector in preparation for splitting AsmPrinter into its own library.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54881 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-17 12:56:54 +00:00
Gordon Henriksen
c317a60c27 Factor GC metadata table assembly generation out of Collector in preparation for splitting AsmPrinter into its own library.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54880 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-17 12:08:44 +00:00
Chris Lattner
fad86b003a Rework the routines that convert AP[S]Int into a string. Now, instead of
returning an std::string by value, it fills in a SmallString/SmallVector
passed in.  This significantly reduces string thrashing in some cases.

More specifically, this:
 - Adds an operator<< and a print method for APInt that allows you to 
   directly send them to an ostream.
 - Reimplements APInt::toString to be much simpler and more efficient
   algorithmically in addition to not thrashing strings quite as much.

This speeds up llvm-dis on kc++ by 7%, and may also slightly speed up the
asmprinter.  This also fixes a bug I introduced into the asmwriter in a
previous patch w.r.t. alias printing.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54873 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-17 07:19:36 +00:00
Anton Korobeynikov
ffe31d7bf1 Move SLEB/ULEB size calculation routines from AsmPrinter to TargetAsmInfo. This makes JIT asmprinter-free.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54843 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-16 12:57:46 +00:00
Owen Anderson
cd1dcbd4fb Convert several std::vectors over to SmallVector, and use reserve() as appropriate for cases where std::vector is still used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54820 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-15 18:49:41 +00:00
Owen Anderson
bbf5583283 Use SmallSet instead of std::set to save allocations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54810 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-14 23:41:38 +00:00
Owen Anderson
79e6ed9d47 Move MachineInstr::getOpcode inline.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54807 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-14 23:25:30 +00:00
Owen Anderson
44eb65cf58 Convert uses of std::vector in TargetInstrInfo to SmallVector. This change had to be propoagated down into all the targets and up into all clients of this API.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54802 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-14 22:49:33 +00:00
Dan Gohman
e285a74f7c Make FastISel's constructor protected, and give it a destructor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54793 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-14 21:51:29 +00:00
Owen Anderson
eaa009d963 Remove more uses of std::set.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54787 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-14 21:01:00 +00:00
Dan Gohman
7f8613e5b8 Improve support for vector casts in LLVM IR and CodeGen.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54784 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-14 20:04:46 +00:00
Owen Anderson
22ae999082 Speed up addRegisterDead by adding more fast checks before performing the expensive
subregister query, and by increasing the size of the subregister hashtable so
that there are fewer collisions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54781 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-14 18:34:18 +00:00
Dan Gohman
a8c763b307 Use empty() instead of begin() == end().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54780 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-14 18:13:49 +00:00
Owen Anderson
97382166dd Get rid of a use of std::map.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54770 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-13 23:36:23 +00:00
Dan Gohman
a60832b018 Fix a bogus srem rule - a negative value srem'd by a power-of-2
can have a non-negative result; for example, -16%16 is 0. Also,
clarify the related comments. This fixes PR2670.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54767 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-13 23:12:35 +00:00
Owen Anderson
289983123b Expunge the last uses of std::map from LiveIntervals.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54766 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-13 22:28:50 +00:00
Owen Anderson
20e2839cb9 Move r2iMap_ over to DenseMap from std::map.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54765 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-13 22:08:30 +00:00
Dan Gohman
6ab6422f25 Allow SelectionDAG to create EXTRACT_VECTOR_ELT nodes with
non-constant indices. Only a few of the peephole checks require
a constant index.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54764 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-13 21:51:37 +00:00
Owen Anderson
03857b29d8 Make the allocation of LiveIntervals explicit, rather than holding them in the r2iMap_ by value. This will prevent references to them from being invalidated
if the map is changed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54763 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-13 21:49:13 +00:00
Dan Gohman
b0cf29c5cf Initial checkin of the new "fast" instruction selection support. See
the comments in FastISelEmitter.cpp for details on what this is.
This is currently experimental and unusable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54751 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-13 20:19:35 +00:00
Dan Gohman
925a7e8ed6 Rename SelectionDAGISel's FastISel to Fast, to begin to make
room for the new FastISel instruction selection code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54749 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-13 19:47:40 +00:00
Owen Anderson
32767955a4 Get rid of unused variable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54742 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-13 17:44:52 +00:00
Owen Anderson
27d6681496 1) Merge entire live intervals instead of parts of them.
2) Conditionalize temporary insertion if we don't need it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54741 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-13 17:25:42 +00:00
Dan Gohman
04f4f4f447 Correct the filename in the top-of-file comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54688 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-12 17:42:33 +00:00
Dan Gohman
8cea8ff34c Take the FrameOffset into account when computing the alignment
of stack objects. This fixes PR2656.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54646 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-11 18:27:03 +00:00
Gordon Henriksen
08db7367b1 Fix some typos. Apparently I think C needs a power-of operator.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54574 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-09 03:48:46 +00:00
Eric Christopher
7a61d701c0 Have IRBuilder take a template argument on whether or not to preserve
names. This can save a lot of allocations if you aren't going to be
looking at the output.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54546 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-08 19:39:37 +00:00
Anton Korobeynikov
f5b6a47bb5 Handle visibility printing with all generality. Remove bunch of duplicate code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54540 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-08 18:25:07 +00:00
Owen Anderson
b12ab97bbd Reduce the entries in a phi before testing it for deadness, because removing the entries might make it dead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54535 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-08 18:00:05 +00:00
Evan Cheng
381cb07544 Add skeleton of simple basic block instruction selector.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54522 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-08 07:27:28 +00:00
Nick Lewycky
d6227385fc Don't crash printing the asm for a ConstantExpr PtrToInt just because the int
is narrower than the pointer. This testcase emits:

  .byte (((17) - 16) & 255)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54517 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-08 06:34:07 +00:00
Bruno Cardoso Lopes
e36bfe678d Add the remaining fp_round libcalls:
FPROUND_F80_F32, FPROUND_PPCF128_F32, 
FPROUND_F80_F64, FPROUND_PPCF128_F64

Support for soften float fp_round operands is added, Mips 
needs this to round f64->f32.

Also added support to soften float FABS result, Mips doesn't 
support double fabs results while in 'single float only' mode.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54484 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-07 19:01:24 +00:00
Owen Anderson
724acf1c52 Do a dominator walk when scheduling copies, rather than a DFS on the CFG. Also, fix a few problems when creating
live intervals for temporaries created by phi elimination.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54483 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-07 18:28:07 +00:00
Dan Gohman
e3d920699c Re-enable elimination of unnecessary SUBREG_TO_REG instructions in
LowerSubregs, and fix an x86-64 isel bug that this exposed.

SUBREG_TO_REG for x86-64 implicit zero extension is only safe for
isel to generate when the source is known to always have zeros in
the high 32 bits. The EXTRACT_SUBREG instruction does not clear
the high 32 bits.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54444 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-07 02:54:50 +00:00
Evan Cheng
39fd6e81b1 Factor code that finalize PHI nodes, jump tables, etc. out of SelectBasicBlock. No functionality changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54438 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-07 00:43:25 +00:00
Owen Anderson
9200e81a18 SDISel's constant branch folding can fold away self-loops, which doesn't result in any dead blocks, but
rather an incorrect phi input.  Add code to UnreachableMachineBlockElim to get rid of these entries.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54432 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-06 23:16:52 +00:00
Owen Anderson
883771f86a Correct handle cases where two phis are coalesced together, and correct break up the case where two different
phis want to coalesce with the same vreg.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54426 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-06 22:08:58 +00:00
Owen Anderson
aa111080df Oops, didn't mean to commit this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54425 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-06 20:58:38 +00:00
Owen Anderson
9860b71b6a We don't need to try to coalesce input vregs that are the same as the output vreg.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54422 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-06 20:29:20 +00:00
Owen Anderson
9b49120408 Only trim a live interval if the register is not used after the PHI node.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54421 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-06 18:36:17 +00:00
Owen Anderson
788d04152a Only remap each VNInfo once when doing renumbering.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54420 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-06 18:35:45 +00:00
Owen Anderson
24d79ba2ef Fix breakage on ARM/2008-04-10-ScavengerAssert.ll.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54378 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-05 22:24:40 +00:00
Evan Cheng
e3b8a48d32 Fix PR2596: out of bound reference.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54375 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-05 21:51:46 +00:00
Owen Anderson
5d2f8072d4 Correctly handle replacement and removal of PHIs with one incoming register.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54374 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-05 21:40:45 +00:00
Owen Anderson
71ac0be6bb Oops, we were already checking for dead phis. Handle this the proper way, then.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54371 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-05 21:18:51 +00:00
Owen Anderson
e7b8205e6e We don't need to update live intervals for dead PHIs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54369 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-05 20:51:26 +00:00
Owen Anderson
3bc9c6f3e7 Remove the -disable-correct-folding option, which was ugly and is no longer needed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54361 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-05 18:27:54 +00:00
Dan Gohman
430b8a22e2 Fix several const-correctness issues, resolving some -Wcast-qual warnings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54349 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-05 14:45:15 +00:00
Evan Cheng
4fa393aae1 Remove #if 0.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54347 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-05 07:20:57 +00:00
Evan Cheng
068b4ff553 Fix PR2568: Fix bug that cause redudant kill marker after its live interval has been extended due to coalescing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54346 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-05 07:10:38 +00:00
Owen Anderson
59c0d4fcde Remove unneeded iteration. Thanks to Dan for the feedback.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54337 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-05 00:30:10 +00:00
Owen Anderson
6ac8df7f61 This option doesn't need to be a target option. It can be in SDISel instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54336 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-05 00:27:28 +00:00
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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