Commit Graph

58279 Commits

Author SHA1 Message Date
Jeffrey Yasskin
39c75f2e90 Fix PR6360. It's easy for a stub's address to escape to user code, so we can't
just count references to it from JIT output to decide when to destroy it.  This
patch waits to destroy the JIT's memory of a stub until the Function it refers
to is destroyed.  External function stubs and GVIndirectSyms aren't destroyed
until the JIT itself is.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97737 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-04 19:45:09 +00:00
Dan Gohman
ba72b0c4e1 Fix a typo Duncan noticed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97735 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-04 19:11:28 +00:00
Johnny Chen
0635fc5c27 Added 32-bit Thumb instructions for Preload Data (PLD, PLDW) and Preload
Instruction (PLI) for disassembly only.

According to A8.6.120 PLI (immediate, literal), for example, different
instructions are generated for "pli [pc, #0]" and "pli [pc, #-0"].  The
disassembler solves it by mapping -0 (negative zero) to -1, -1 to -2, ..., etc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97731 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-04 17:40:44 +00:00
John McCall
b8f2e4bde6 Simplify the condition-checking logic and hopefully clear up a build failure
that somehow got through my testing.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97728 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-04 11:48:42 +00:00
John McCall
7b7b90769a Teach lit to honor conditional directives. The syntax is:
IF(condition(value)):
If the value satisfies the condition, the line is processed by lit;  otherwise
it is skipped.  A test with no unignored directives is resolved as Unsupported.

The test suite is responsible for defining conditions;  conditions are unary
functions over strings.  I've defined two conditions in the LLVM test suite,
TARGET (with values like those in TARGETS_TO_BUILD) and BINDING (with values
like those in llvm_bindings).  So for example you can write:
  IF(BINDING(ocaml)): RUN: %blah %s -o -
and the RUN line will only execute if LLVM was configured with the ocaml
bindings.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97726 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-04 09:36:50 +00:00
Nick Lewycky
5bf7f88ea2 Make the 'icmp pred trunc(ext(X)), CST --> icmp pred X, ext(trunc(CST))'
transformation much more careful. Truncating binary '01' to '1' sounds like it's
safe until you realize that it switched from positive to negative under a signed
interpretation, and that depends on the icmp predicate.

Also a few miscellaneous cleanups.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97721 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-04 06:54:10 +00:00
Jeffrey Yasskin
e57898ce55 Fix PR5291, in which a SmallPtrSet iterator was held across an insertion into
the set.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97720 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-04 06:50:01 +00:00
Evan Cheng
9763f709e2 Rename -machine-cse to -enable-machine-cse.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97713 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-04 02:08:04 +00:00
Chris Lattner
97d853451e add a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97709 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-04 01:43:43 +00:00
Chris Lattner
57fcd03611 so hey, it turns out that the histogram was completely wrong, because
we sometimes emit nodes multiple times to string buffers to size them.
Compute the histogram correctly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97708 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-04 01:34:29 +00:00
Evan Cheng
b3958e8032 Look ahead a bit to determine if a physical register def that is not marked dead is really alive. This is necessary to catch a lot of common cse opportunities for targets like x86.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97706 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-04 01:33:55 +00:00
Chris Lattner
6b4ae71725 zap fixme.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97705 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-04 01:26:00 +00:00
Chris Lattner
9752fb10a4 now that complexpatterns are all emitted at the end of the match
sequence, just emit instruction predicates right before them.  This
exposes yet more factoring opportunitites, shrinking the X86 table 
to 79144 bytes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97704 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-04 01:25:36 +00:00
Chris Lattner
57bf8a483e change the new isel matcher to emit ComplexPattern matches
as the very last thing before node emission.  This should
dramatically reduce the number of times we do 'MatchAddress'
on X86, speeding up compile time.  This also improves comments
in the tables and shrinks the table a bit, now down to 
80506 bytes for x86.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97703 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-04 01:23:08 +00:00
Jeffrey Yasskin
8e98d1299d Make sure JITResolvers don't leave any stubs behind. When a JITResolver was
destroyed, it could leave stubs in the StubToResolverMap, which would confuse
the lookup for subsequent lazy compilations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97698 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-04 00:32:33 +00:00
Chris Lattner
d1aca7c8b4 enhance comment output to specify what recorded slot
numbers a ComplexPat will match into.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97696 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-04 00:28:05 +00:00
Dan Gohman
6900a39d28 Fix more code to work properly with vector operands. Based on
a patch my Micah Villmow for PR6465.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97692 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-04 00:23:16 +00:00
John McCall
992e61992c Teach the pic16 target to recognize pic16-*-* triples.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97691 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-04 00:21:47 +00:00
Chris Lattner
2c4afd1d8e inline CannotYetSelectIntrinsic into CannotYetSelect and simplify.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97690 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-04 00:21:16 +00:00
Evan Cheng
67bda7215b Fix a logic error. An instruction that has a live physical register def cannot be CSE'ed, but it *can* be used to replace a common subexpression.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97688 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03 23:59:08 +00:00
Evan Cheng
a92dced4a1 Remove PHINodeTraits and use MachineInstrExpressionTrait instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97687 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03 23:55:49 +00:00
Erick Tryzelaar
7eb4beb4cd Expose the rest of the llvm-c scalar opts to ocaml.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97685 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03 23:51:34 +00:00
Erick Tryzelaar
9c7c566efe Rename some ocaml functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97684 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03 23:51:30 +00:00
Erick Tryzelaar
7b3afb4547 Expose the external functions for ocaml's execution engine as an optimization.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97683 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03 23:51:28 +00:00
Erick Tryzelaar
4ad188ba8d Expose alignment and stack alignment attributes to llvm-c and ocaml.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97682 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03 23:51:25 +00:00
Evan Cheng
67eaa08f2b Move MachineInstrExpressionTrait::getHashValue() out of line so it can skip over only virtual register defs. This matches what isEqual() is doing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97680 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03 23:37:30 +00:00
Evan Cheng
05bdcbb1ae Re-apply r97667 but with a little bit of thought put into the patch. This implements a special DenseMapInfo trait for DenseMap<MachineInstr*> that compare the value of the MachineInstr rather than the pointer value. Since the hashing and equality test functions ignore defs it's useful for doing CSE kind optimization.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97678 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03 23:27:36 +00:00
Johnny Chen
cb721da4c6 Modified the asm string of 16-bit Thumb MUL instruction so that it prints:
MULS <Rdm>, <Rn>, <Rdm>

according to A8.6.105 MUL Encoding T1.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97675 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03 23:15:43 +00:00
Dan Gohman
319dfa3fb3 Revert 97667. It broke a bunch of tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97673 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03 22:40:03 +00:00
Evan Cheng
34cdf6edf5 Fix funky indentation and add comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97670 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03 21:54:14 +00:00
Evan Cheng
a054ae02fd Move DenseMapInfo for MachineInstr* to MachineInstr.h
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97667 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03 21:47:16 +00:00
Dan Gohman
a72d2a210c Fix a bug in SelectionDAG's ReplaceAllUsesWith in the case where
CSE and recursive RAUW calls delete a node from the use list,
invalidating the use list iterator. There's currently no known
way to reproduce this in an unmodified LLVM, however there's no
fundamental reason why a SelectionDAG couldn't be formed which
would trigger this case.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97665 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03 21:33:37 +00:00
Evan Cheng
16b48b8a05 Machine CSE work in progress. It's doing some CSE now. But implicit def of physical registers are getting in the way.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97664 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03 21:20:05 +00:00
Evan Cheng
1423c70b8f Add MachineRegisterInfo::hasOneUse and hasOneNonDBGUse.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97663 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03 21:18:38 +00:00
Chris Lattner
14c85cbf54 don't use always_inline with gcc 3.4, it has some unimplemented features
and is too old to really care about the performance of the generated 
compiler.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97662 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03 20:47:12 +00:00
Evan Cheng
a84f3d9a97 TopLevelMap[] reference is a pointer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97661 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03 20:46:48 +00:00
Andrew Lenharth
aedc3ec1e2 Fix PR6444, note still doesn't compile libgcc2 all the way, but fixes that error. May not fix it in an ABI complient way. It wasn't clear what gcc does
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97660 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03 20:15:31 +00:00
Chris Lattner
c8e14b3d37 fix incorrect folding of icmp with undef, PR6481.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97659 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03 19:46:03 +00:00
Bill Wendling
fec8657351 Revert...
--- Reverse-merging r97592 into '.':
U    lib/CodeGen/TargetLoweringObjectFileImpl.cpp



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97657 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03 19:31:05 +00:00
Johnny Chen
e54a3ef087 Added 32-bit Thumb instructions LDRT, LDRBT, LDRHT,,LDRSBT, LDRSHT, STRT, STRBT,
and STRHT for disassembly only.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97655 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03 18:45:36 +00:00
Chris Lattner
da828e3c8c add some of the more obscure predicate types to the
Scope accelerator.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97652 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03 07:46:25 +00:00
Chris Lattner
f1b7c7d476 speed up scope node processing: if the first element of a scope
entry we're about to process is obviously going to fail, don't
bother pushing a scope only to have it immediately be popped.
This avoids a lot of scope stack traffic in common cases.

Unfortunately, this requires duplicating some of the predicate
dispatch.  To avoid duplicating the actual logic I pulled each
predicate out to its own static function which gets used in
both places.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97651 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03 07:31:15 +00:00
Chris Lattner
cfe2eab744 introduce a new SwitchTypeMatcher node (which is analogous to
SwitchOpcodeMatcher) and have DAGISelMatcherOpt form it.  This
speeds up selection, particularly for X86 which has lots of 
variants of instructions with only type differences.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97645 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03 06:28:15 +00:00
Bill Wendling
30174be37a Fix comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97644 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03 05:40:40 +00:00
Dan Gohman
087bd1e3a1 Make SCEVExpander and LSR more aggressive about hoisting expressions out
of loops.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97642 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03 05:29:13 +00:00
Dan Gohman
ed78dbafd0 Revert r97580; that's not the right way to fix this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97639 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03 04:36:42 +00:00
Evan Cheng
6ba9554988 Work in progress. Finding some cse now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97635 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03 02:48:20 +00:00
Chris Lattner
99fe641325 remove nvload and two patterns that use it which are
better done by dag combine.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97633 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03 02:14:54 +00:00
Johnny Chen
0f7866e796 Added 32-bit Thumb instructions t2NOP, t2YIELD, t2WFE, t2WFI, t2SEV, and t2DBG
for disassembly only.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97632 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03 02:09:43 +00:00
Bill Wendling
32f9eb2bc3 Use APInt instead of zext value.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97631 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03 01:58:01 +00:00