Commit Graph

58241 Commits

Author SHA1 Message Date
Chris Lattner b14490d912 add a EmitSymbolValue convenience method to MCStreamer.
llvm-svn: 98017
2010-03-09 00:39:24 +00:00
Chris Lattner 085b65283c make InlineInfoLabels hold MCSymbol*'s, avoiding
recomputation of the labels.

llvm-svn: 98016
2010-03-09 00:31:02 +00:00
Chris Lattner 53d6d1e87d mc'ize the last use of PrintLabelName and eliminate PrintLabelName.
llvm-svn: 98015
2010-03-09 00:26:09 +00:00
Chris Lattner 292ec6c299 eliminate an argument from PrintRelDirective, sinking
the one special case into EmitSectionOffset.  MCize
the non-special case in EmitSectionOffset.

llvm-svn: 98014
2010-03-09 00:17:58 +00:00
Dan Gohman f6fb1e0d93 Print the correct index in the "match failed at index" message.
llvm-svn: 98013
2010-03-09 00:07:36 +00:00
Chris Lattner b242ae6dcc remove the suffix form of PrintLabelName, which was only
used for 'flavor'.

llvm-svn: 98012
2010-03-09 00:00:57 +00:00
Chris Lattner 4d728127fb now that the debug and eh emitters use a common .set counter,
we can eliminate "flavor".

llvm-svn: 98011
2010-03-09 00:00:15 +00:00
Chris Lattner 9889c1eb9e move .set generation out of DwarfPrinter into AsmPrinter and
MCize it.

llvm-svn: 98010
2010-03-08 23:58:37 +00:00
Evan Cheng c9e8621268 Don't waste time trying to CSE labels, phis, inline asm. Definitely avoid cse implicit-def for obvious performance reason.
llvm-svn: 98009
2010-03-08 23:49:12 +00:00
Evan Cheng 6ec41ee33c Restrict machine cse to really trivial coalescing. Leave the heavy lifting to a real coalescer.
llvm-svn: 98007
2010-03-08 23:28:08 +00:00
Chris Lattner 27a9732450 simplify EmitSectionOffset to always use .set if it is
available, the only thing this affects is that we produce
.set in one case we didn't before, which shouldn't harm
anything.  Make EmitSectionOffset call EmitDifference
instead of duplicating it.

llvm-svn: 98005
2010-03-08 23:23:25 +00:00
Chris Lattner d802615d0c don't reset defaults.
llvm-svn: 98004
2010-03-08 23:18:21 +00:00
Chris Lattner 449a9ff14b Remove a version of EmitDifference.
llvm-svn: 98002
2010-03-08 23:02:59 +00:00
Bob Wilson 0bfbd9b68c Fix a crash compiling 254.gap for Thumb2. The Thumb2 add/sub with 12-bit
immediate instructions cannot set the condition codes, so they do not have
the extra cc_out operand.  We hit an assertion during tail duplication
because the instruction being duplicated had more operands that expected.

llvm-svn: 98001
2010-03-08 22:56:15 +00:00
Evan Cheng 4f2fd2d2be Re-commit 97860 with fix. getMallocAllocatedType may return null.
llvm-svn: 98000
2010-03-08 22:54:36 +00:00
Chris Lattner ee20b5f236 eliminate a form of PrintLabelName.
llvm-svn: 97999
2010-03-08 22:52:49 +00:00
Chris Lattner 3c081995f6 remove another form of EmitReference.
llvm-svn: 97998
2010-03-08 22:50:36 +00:00
Chris Lattner b779eb6a1d eliminate the non-MCSymbol versions of EmitReference.
llvm-svn: 97997
2010-03-08 22:47:57 +00:00
Chris Lattner 722714dde2 mc'ize EmitLabel.
llvm-svn: 97996
2010-03-08 22:44:40 +00:00
Chris Lattner 8dcf41ed66 merge DIEObjectLabel and DIEDwarfLabel into DIELabel.
Yes, DIE you fiendish labels, die all of you.

llvm-svn: 97995
2010-03-08 22:31:46 +00:00
Devang Patel 2e520f6378 Introduce DIFile. This will be used to represent header files and source file(s) in debug info.
llvm-svn: 97994
2010-03-08 22:27:22 +00:00
Chris Lattner bc9210cb70 elimiante the DWLabel class, using MCSymbol instead. Start
switching some stuff over to passing around MCSymbol* instead
of stem+ID.

llvm-svn: 97993
2010-03-08 22:23:36 +00:00
Kevin Enderby d2030e38a6 Fix the vmxon entry in the X86InstrInfo.td so it has the correct prefix bytes
for the encoding and is not the same as vmptrld.

llvm-svn: 97992
2010-03-08 22:17:26 +00:00
Daniel Dunbar 3a3f472cb4 MC/Macho-O: Align the zerofill section itself to the maximum alignment.
llvm-svn: 97991
2010-03-08 22:03:42 +00:00
Devang Patel 8119fe87d8 Derive DIType from DIScope. This simplifies getContext() where for members the context is a type. This also eliminates need of CompileUnitMaps maintained by dwarf writer.
llvm-svn: 97990
2010-03-08 22:02:50 +00:00
Devang Patel 4bd5f8ceca Remove DbgNode checks in constructor. Debug descriptors are intended to be light weight wrappers.
llvm-svn: 97988
2010-03-08 21:32:10 +00:00
Daniel Dunbar 6622fe7873 MC/Mach-O: Fix address compution for zero fill sections.
llvm-svn: 97984
2010-03-08 21:10:42 +00:00
Daniel Dunbar c6ac7940d9 MC/Mach-O: Error out instead of crashing on invalid scattered relocation expressions.
llvm-svn: 97983
2010-03-08 21:10:39 +00:00
Daniel Dunbar b59f7734b9 X86: Fix encoding for TEST{8,16,32}rr.
llvm-svn: 97982
2010-03-08 21:10:36 +00:00
Evan Cheng 5967649780 Add documentation on sibling call optimization. Rename tailcall2.ll test to sibcall.ll.
llvm-svn: 97980
2010-03-08 21:05:02 +00:00
Devang Patel 03efa475d1 isNull() is not used any more.
llvm-svn: 97979
2010-03-08 21:00:27 +00:00
Devang Patel 3b548aa8e2 Avoid using DIDescriptor.isNull().
This is a first step towards eliminating checks in Descriptor constructors.

llvm-svn: 97975
2010-03-08 20:52:55 +00:00
Andrew Lenharth 2e8b9b5ad3 Iterator traits and swap. closes PR6548 and PR6549
llvm-svn: 97974
2010-03-08 20:45:52 +00:00
Erick Tryzelaar dc7e85fec6 Don't always run the ocaml kaleidoscope tutorials.
llvm-svn: 97973
2010-03-08 20:07:32 +00:00
John McCall 953838d0d5 Revert r97726 and r97728 at ddunbar's request; we want to solve this
some other way when it comes to be necessary.

llvm-svn: 97972
2010-03-08 20:02:05 +00:00
Erick Tryzelaar f11976538e Add OCaml tutorial to the examples.
llvm-svn: 97966
2010-03-08 19:32:27 +00:00
Erick Tryzelaar b8c11eb36b Update the OCaml Kaleidoscope tutorial.
llvm-svn: 97965
2010-03-08 19:32:18 +00:00
Devang Patel bc97f6b757 Revert r97947.
llvm-svn: 97963
2010-03-08 19:20:38 +00:00
Chris Lattner e77f993262 disambiguate some types, add a fixme about some
inconsistent intrinsics.

llvm-svn: 97959
2010-03-08 18:59:49 +00:00
Chris Lattner d8045649a6 fix some more ambiguous patterns, remove another nontemporalstore
pattern which is broken (source and address swapped).

llvm-svn: 97958
2010-03-08 18:57:56 +00:00
Chris Lattner a6d842fac0 Correct immediate sizes.
llvm-svn: 97957
2010-03-08 18:55:15 +00:00
Chris Lattner 6742f1f338 fix a type compatibility bug. imm is i32 in the input
pattern, not i64.

llvm-svn: 97956
2010-03-08 18:52:55 +00:00
Chris Lattner b8a7427636 fix a bunch of partially ambiguous patterns on ARM. As an
example, this:

(set DPR:$dst, (fsub (fneg (fmul DPR:$a, DPR:$b)), DPR:$dstin))

is ambiguous because DPR contains both f64 and v2f32.  tblgen
currently accidentally picks f64 because it's first in the 
regclass.

llvm-svn: 97955
2010-03-08 18:51:21 +00:00
Chris Lattner dac58bd094 Fix a bunch of ambiguous patterns which tblgen happens to infer types
for, due to a bug.

llvm-svn: 97953
2010-03-08 18:44:04 +00:00
Chris Lattner e96802e6ed Node arguments to type casts can have names too. This code
needs to be majorly refactored, but this spot bugfix allows
things like:

 def vmrghw_shuffle : PatFrag<(ops node:$lhs, node:$rhs),
                             (vector_shuffle (v4i32 node:$lhs), node:$rhs), [{
...

llvm-svn: 97952
2010-03-08 18:36:19 +00:00
Chris Lattner 2b7ecfbe40 tidy up
llvm-svn: 97950
2010-03-08 18:29:38 +00:00
Devang Patel fe28599f6f Avoid using DIDescriptor.isNull().
This is a first step towards eliminating unncessary constructor checks in light weight DIDescriptor wrappers.

llvm-svn: 97947
2010-03-08 18:25:48 +00:00
Dale Johannesen 30488c636d Add Order to SDDbgValue
llvm-svn: 97939
2010-03-08 05:39:50 +00:00
Dale Johannesen 0eebdbb325 Fix dbg value handling in tail merging.
llvm-svn: 97938
2010-03-08 05:38:13 +00:00
Chris Lattner ca8d590c28 remove a non-temporal store pattern which is not tested and
could never have matched because the operand list was backwards.

llvm-svn: 97933
2010-03-08 03:18:28 +00:00
Douglas Gregor 9abb538be0 Revert r97917, which was causing Clang Debug self-host failures.
llvm-svn: 97932
2010-03-08 02:58:37 +00:00
Jeffrey Yasskin 5cdbd7064c Roll back r97918 again. Just configuring against llvm-gcc wasn't enough to run
the FrontendC* tests. :(

llvm-svn: 97921
2010-03-07 19:26:40 +00:00
Jeffrey Yasskin aba6ea8254 Reapply r97788 to free MDNodes when the LLVMContext is destroyed. It
bootstraps llvm-gcc this time.

llvm-svn: 97918
2010-03-07 18:46:57 +00:00
Jeffrey Yasskin 37a0372fc4 Roll r97906 forward again, without double-deleting CompileUnit::IndexTyDie.
llvm-svn: 97917
2010-03-07 17:10:13 +00:00
Tobias Grosser 62892a8680 Add findNearestCommonDominator() for PostDominators.
Add a missing interface to be able to call findNearestCommonDominator
for a PostDominanceTree. The function itself is already implemented in
DominatorTreeBase. The interface however was only added to the
DominatorTree class, but not the PostDominatorClass.

llvm-svn: 97915
2010-03-07 11:15:04 +00:00
Chris Lattner 28dc6c12c3 Use Other as a sentinel instead of iAny.
llvm-svn: 97914
2010-03-07 07:45:08 +00:00
Chris Lattner c95d58d31a turn off debug spew
llvm-svn: 97912
2010-03-07 07:21:24 +00:00
Chris Lattner a160389290 more factoring.
llvm-svn: 97911
2010-03-07 07:20:49 +00:00
Jeffrey Yasskin 7068bdba50 _2_ gcc crashes, ah, ah, ah...
(Rolling back r97906.)

llvm-svn: 97909
2010-03-07 07:16:49 +00:00
Chris Lattner b9071a2d5d teach tblgen to be more aggressive when factoring CheckType nodes.
Now it will factor things like this:

CheckType i32
  ...
CheckOpcode ISD::AND
  CheckType i64
  ...

into:

SwitchType:
  i32: ...
  i64:
    CheckOpcode ISD::AND
    ...

This shrinks hte table by a few bytes, nothing spectacular.

llvm-svn: 97908
2010-03-07 07:01:28 +00:00
Jeffrey Yasskin 413721b050 Avoid leaking CompileUnits and DbgScopes from DwarfDebug. Leaks found by Valgrind!
llvm-svn: 97906
2010-03-07 06:55:35 +00:00
Chris Lattner 9c791d872a add some helper functions and implement isContradictory
for CheckValueTypeMatcher.  The isContradictory implementation
helps us factor better, shrinking x86 table from 79144 -> 78896
bytes.

llvm-svn: 97905
2010-03-07 06:29:26 +00:00
Chris Lattner ef2f8047fa tidy up
llvm-svn: 97895
2010-03-07 04:28:09 +00:00
Wesley Peck 1fb4edc05d Re-committing the failed r97807 commit with changes to eliminate warnings.
llvm-svn: 97891
2010-03-06 23:23:12 +00:00
Nick Lewycky 4b5e95426d Add verification of union types.
llvm-svn: 97889
2010-03-06 20:26:48 +00:00
Anton Korobeynikov c9c8b2713c Describe what's going on with mingw alloca and why do we need separate instruction.
llvm-svn: 97888
2010-03-06 20:07:32 +00:00
Anton Korobeynikov bf16a17fc1 Initial bits of ARMv4-only support.
Patch by John Tytgat!

llvm-svn: 97886
2010-03-06 19:39:36 +00:00
Anton Korobeynikov d5e3fd6dc8 Lower dynamic stack allocation on mingw32 to separate instruction.
We cannot use a normal call here since it has extra unmodelled side
effects (it changes stack pointer). This should fix PR5292.

llvm-svn: 97884
2010-03-06 19:32:29 +00:00
Chris Lattner 4c1e4db3ff make APFloat::toString be const.
llvm-svn: 97883
2010-03-06 19:20:13 +00:00
Chris Lattner 1e93b96117 disable this for mingw as well, we really need a 'has no dynamic linking' predicate.
llvm-svn: 97882
2010-03-06 18:54:37 +00:00
Anton Korobeynikov 6f5523aa8b Do not use '&' prefix for globals when register base field is non-zero, otherwise msp430-as will silently miscompile the code (TI's assembler report an error though).
This fixes PR6349

llvm-svn: 97877
2010-03-06 11:41:12 +00:00
Eric Christopher 1810d77cb4 Let the fallthrough handle whether or not we've changed anything
before we try to optimize.

llvm-svn: 97876
2010-03-06 10:59:25 +00:00
Eric Christopher a7fb58f5f5 Migrate _chk call lowering from SimplifyLibCalls to InstCombine. Stub
out the remainder of the calls that we should lower in some way and
move the tests to the new correct directory. Fix up tests that are now
optimized more than they were before by -instcombine.

llvm-svn: 97875
2010-03-06 10:50:38 +00:00
Rafael Espindola 7f1e85f331 Add static methods to handle Linkage Types.
llvm-svn: 97871
2010-03-06 07:22:39 +00:00
Chris Lattner 29146d417e clean this up.
llvm-svn: 97870
2010-03-06 07:02:28 +00:00
Chris Lattner 4279a078a5 revert r97807, it introduced build warnings.
llvm-svn: 97869
2010-03-06 04:32:46 +00:00
Jim Grosbach 24c9b550b2 Thumb1 epilogue code generation needs to take into account that callee-saved
registers may be restored via a pop instruction, not just a tRestore.
This fixes nightly test 471.omnetep for Thumb1.

llvm-svn: 97867
2010-03-06 03:28:39 +00:00
Eric Christopher d8b43d0e59 Temporarily revert:
Log:
Transform @llvm.objectsize to integer if the argument is a result of malloc of known size.

Modified:
   llvm/trunk/lib/Transforms/InstCombine/InstCombineCalls.cpp
   llvm/trunk/test/Transforms/InstCombine/objsize.ll

It appears to be causing swb and nightly test failures.

llvm-svn: 97866
2010-03-06 03:11:35 +00:00
Dale Johannesen 066b8ea590 Fix another case where LSR was affected by debug info.
llvm-svn: 97865
2010-03-06 02:45:26 +00:00
Evan Cheng 0f5f54784a Don't update physical register def.
llvm-svn: 97861
2010-03-06 01:14:19 +00:00
Evan Cheng afdc7d3aab Transform @llvm.objectsize to integer if the argument is a result of malloc of known size.
llvm-svn: 97860
2010-03-06 01:01:42 +00:00
Erick Tryzelaar 381268e629 Add a LLVMWriteBitcodeToFD that exposes the raw_fd_ostream options.
llvm-svn: 97858
2010-03-06 00:30:06 +00:00
Erick Tryzelaar dc78d16a03 Whoops, the old LLVMWriteBitcodeToFileHandle closed the stream.
Luckily this never was released.

llvm-svn: 97857
2010-03-06 00:30:01 +00:00
Erick Tryzelaar b2e144ddff LLVMWriteBitcodeToFileHandle should work on all architectures now.
llvm-svn: 97856
2010-03-06 00:29:58 +00:00
Dale Johannesen 10a77adede Add some new bits of debug info handling. No
functional change yet.

llvm-svn: 97855
2010-03-06 00:03:23 +00:00
Dan Gohman 14e450f595 Reapply r97778 and r97779, enabled only for unsigned i64 to f64
conversions.

llvm-svn: 97854
2010-03-06 00:00:55 +00:00
Devang Patel 0a3d71af52 Test case for r97851.
llvm-svn: 97852
2010-03-05 23:35:04 +00:00
Ted Kremenek 65bb311629 Update CMake build.
llvm-svn: 97846
2010-03-05 22:34:16 +00:00
Charles Davis 8545afe0b0 Don't emit global symbols into the (__TEXT,__ustring) section on Darwin. This
is a workaround for <rdar://problem/7672401/> (which I filed).

This let's us build Wine on Darwin, and it gets the Qt build there a little bit
further (so Doug says).

llvm-svn: 97845
2010-03-05 22:28:45 +00:00
Eric Christopher 87abfc506f Move SimplifyLibCalls's LibCall builders to a separate file so they
can be used in more places.  Add an argument for the TargetData that
most of them need. Update for the getInt8PtrTy() change.  Should be
no functionality change.

llvm-svn: 97844
2010-03-05 22:25:30 +00:00
Eric Christopher 27d54d9d3b Add support for an i8* type accessor.
llvm-svn: 97841
2010-03-05 22:21:58 +00:00
Jakob Stoklund Olesen 2664d295cb Better handling of dead super registers in LiveVariables. We used to do this:
CALL ... %RAX<imp-def>
   ... [not using %RAX]
   %EAX = ..., %RAX<imp-use, kill>
   RET %EAX<imp-use,kill>

Now we do this:

   CALL ... %RAX<imp-def, dead>
   ... [not using %RAX]
   %EAX = ...
   RET %EAX<imp-use,kill>

By not artificially keeping %RAX alive, we lower register pressure a bit.

The correct number of instructions for 2008-08-05-SpillerBug.ll is obviously
55, anybody can see that. Sheesh.

llvm-svn: 97838
2010-03-05 21:49:17 +00:00
Jakob Stoklund Olesen 8c5b8db5cd We don't really care about correct register liveness information after the
post-ra scheduler has run. Disable the verifier checks that late in the game.

llvm-svn: 97837
2010-03-05 21:49:13 +00:00
Jakob Stoklund Olesen b0503beff1 Avoid creating bad PHI instructions when BR is being const-folded.
llvm-svn: 97836
2010-03-05 21:49:10 +00:00
Dale Johannesen f5cc1cdc65 Fix a case where LSR is sensitive to debug info.
llvm-svn: 97830
2010-03-05 21:12:40 +00:00
Evan Cheng d214ed0e75 Safely turn memset_chk etc. to non-chk variant if the known object size is >= memset / memcpy / memmove size.
llvm-svn: 97828
2010-03-05 20:59:47 +00:00
Evan Cheng fffdad58ac Instcombine should turn llvm.objectsize of a alloca with static size to an integer.
llvm-svn: 97827
2010-03-05 20:47:23 +00:00
Evan Cheng 27494232d4 Fix typo.
llvm-svn: 97818
2010-03-05 19:55:55 +00:00
Chris Lattner f0692603d5 fix bss section printing for cell, patch by Kalle Raiskila!
llvm-svn: 97814
2010-03-05 18:55:36 +00:00
Chris Lattner f6befffbb2 fix PR6512, a case where instcombine would incorrectly merge loads
from different addr spaces.

llvm-svn: 97813
2010-03-05 18:53:28 +00:00
Wesley Peck 34004170c5 Reworking the stack layout that the MicroBlaze backend generates.
The MicroBlaze backend was generating stack layouts that did not
conform correctly to the ABI. This update generates stack layouts
which are closer to what GCC does.

Variable arguments support was added as well but the stack layout
for varargs has not been finalized.

llvm-svn: 97807
2010-03-05 15:26:02 +00:00
Wesley Peck b0578bf0c3 Adding MBlaze to cmake target list.
llvm-svn: 97806
2010-03-05 15:15:55 +00:00
Chris Lattner 067459c62b Fix PR6503. This turned into a much more interesting and nasty bug. Various
parts of the cmp|cmp and cmp&cmp folding logic wasn't prepared for vectors
(unrelated to the bug but noticed while in the code) and the code was 
*definitely* not safe to use by the (cast icmp)|(cast icmp) handling logic
that I added in r95855.  Fix all this up by changing the various routines
to more consistently use IRBuilder and not pass in the I which had the wrong 
type.

llvm-svn: 97801
2010-03-05 08:46:26 +00:00
Chris Lattner fc13a0343c make these less sensitive to temporary naming.
llvm-svn: 97799
2010-03-05 08:43:33 +00:00
Chris Lattner 48b6e27e7b remove this testcase, it isn't clear what it was testing and it is subsumed by or.ll
llvm-svn: 97798
2010-03-05 08:43:06 +00:00
Evan Cheng 654ec2a663 Fix an oops in x86 sibcall optimization. If the ByVal callee argument is itself passed as a pointer, then it's obviously not safe to do a tail call.
llvm-svn: 97797
2010-03-05 08:38:04 +00:00
Duncan Sands 798ca1e6fe If LD_LIBRARY_PATH is set in the system environment, use it.
llvm-svn: 97796
2010-03-05 08:21:02 +00:00
Chris Lattner 343d2e48b2 simplify some functions and make them work with vector
compares, noticed by inspection.

llvm-svn: 97795
2010-03-05 07:47:57 +00:00
Chris Lattner c6c1523f59 fix a nice subtle reassociate bug which would only occur
in a very specific use pattern embodied in the carefully
reduced testcase.

llvm-svn: 97794
2010-03-05 07:18:54 +00:00
Eric Christopher 4899cbc77d Move GetStringLength and helper from SimplifyLibCalls to ValueTracking.
No functionality change.

llvm-svn: 97793
2010-03-05 06:58:57 +00:00
Jeffrey Yasskin 5c92f933b3 Revert r97788 because it broke test/FrontendC/2010-02-16-DbgVarScope.c.
llvm-svn: 97792
2010-03-05 06:43:49 +00:00
Chris Lattner 55e81eb49f Fix PR6497, a bug where we'd fold a load into an addc
node which has a flag.  That flag in turn was used by an
already-selected adde which turned into an ADC32ri8 which
used a selected load which was chained to the load we
folded.  This flag use caused us to form a cycle.  Fix
this by not ignoring chains in IsLegalToFold even in
cases where the isel thinks it can.

llvm-svn: 97791
2010-03-05 06:19:13 +00:00
Chris Lattner bfdd17a2ea cleanup
llvm-svn: 97790
2010-03-05 06:17:43 +00:00
Chris Lattner 374a3ac744 inline a small function with one call site.
llvm-svn: 97789
2010-03-05 05:49:45 +00:00
Jeffrey Yasskin 39e0d52080 Free MDNodes when the LLVMContext is destroyed. Leak found by Valgrind.
llvm-svn: 97788
2010-03-05 05:47:09 +00:00
Mikhail Glushenkov a764083db3 Make it not an error to specify -O* options several times.
As in 'llvmc -O2 -O2 test.c'.

llvm-svn: 97787
2010-03-05 04:46:39 +00:00
Mikhail Glushenkov cb231bb618 Use FindExecutable as a fall-back search method.
Allows us to find executables that are in the same directory.

llvm-svn: 97786
2010-03-05 04:46:28 +00:00
Evan Cheng cf67ffa500 Rever 96389 and 96990. They are causing some miscompilation that I do not fully understand.
llvm-svn: 97782
2010-03-05 03:08:23 +00:00
Dan Gohman 998c7c2614 Revert r97778 and r97779. They're somehow breaking llvm-gcc builds.
llvm-svn: 97781
2010-03-05 02:40:23 +00:00
Chris Lattner 5ec1b24f8f apparently if gold is around lto needs to be part of DIRS.
llvm-svn: 97780
2010-03-05 02:34:34 +00:00
Dan Gohman ba9eb0bf2e Fix these constants to be more portable.
llvm-svn: 97779
2010-03-05 02:13:10 +00:00
Dan Gohman 7fbeeebaf6 Rewrite i64-to-f64 conversion using an algorithm which handles
rounding correctly. This implementation is a generalization of
the x86_64 code in compiler-rt.

This fixes rdar://7683708.

llvm-svn: 97778
2010-03-05 02:00:46 +00:00
Johnny Chen 70e01cd001 Trivial comment change.
llvm-svn: 97776
2010-03-05 01:45:46 +00:00
Evan Cheng 43d6ff7701 Add missing break for Intrinsic::objectsize case. It was falling through to the following Intrinsic::bswap code. I have no idea why it wasn't breaking stuff.
llvm-svn: 97774
2010-03-05 01:22:47 +00:00
Chris Lattner 6dbf5cc64c disable libprofile on cygwin, patch by Aaron Gray.
llvm-svn: 97772
2010-03-05 01:00:34 +00:00
Chris Lattner 2e89d20ad3 Only build libedis if ENABLE_SHARED is specified, just like liblto.
Don't build any of the dynamic library stuff on cygwin/mingw.

llvm-svn: 97771
2010-03-05 00:59:18 +00:00
Chris Lattner 274c8d8d07 liblto and gold don't need to be built in serial
llvm-svn: 97770
2010-03-05 00:54:45 +00:00
Chris Lattner 6783832ec2 add an assertion requested on llvmdev.
llvm-svn: 97769
2010-03-05 00:49:08 +00:00
Bill Wendling 543ce1f64a Revert r97766. It's deleting a tag.
llvm-svn: 97768
2010-03-05 00:33:59 +00:00
Bill Wendling 6517f88f25 Micro-optimization:
This code:

float floatingPointComparison(float x, float y) {
    double product = (double)x * y;
    if (product == 0.0)
        return product;
    return product - 1.0;
}

produces this:

_floatingPointComparison:
0000000000000000        cvtss2sd        %xmm1,%xmm1
0000000000000004        cvtss2sd        %xmm0,%xmm0
0000000000000008        mulsd           %xmm1,%xmm0
000000000000000c        pxor            %xmm1,%xmm1
0000000000000010        ucomisd         %xmm1,%xmm0
0000000000000014        jne             0x00000004
0000000000000016        jp              0x00000002
0000000000000018        jmp             0x00000008
000000000000001a        addsd           0x00000006(%rip),%xmm0
0000000000000022        cvtsd2ss        %xmm0,%xmm0
0000000000000026        ret

The "jne/jp/jmp" sequence can be reduced to this instead:

_floatingPointComparison:
0000000000000000        cvtss2sd        %xmm1,%xmm1
0000000000000004        cvtss2sd        %xmm0,%xmm0
0000000000000008        mulsd           %xmm1,%xmm0
000000000000000c        pxor            %xmm1,%xmm1
0000000000000010        ucomisd         %xmm1,%xmm0
0000000000000014        jp              0x00000002
0000000000000016        je              0x00000008
0000000000000018        addsd           0x00000006(%rip),%xmm0
0000000000000020        cvtsd2ss        %xmm0,%xmm0
0000000000000024        ret

for a savings of 2 bytes.

This xform can happen when we recognize that jne and jp jump to the same "true"
MBB, the unconditional jump would jump to the "false" MBB, and the "true" branch
is the fall-through MBB.

llvm-svn: 97766
2010-03-05 00:24:26 +00:00
Dale Johannesen 2061c84109 Fix some more places where dbg_value affected codegen.
llvm-svn: 97765
2010-03-05 00:02:59 +00:00
Devang Patel 9984bd6092 Add metadata example.
llvm-svn: 97764
2010-03-04 23:44:48 +00:00
Jeffrey Yasskin bd8a759589 Stop leaking MDStrings.
llvm-svn: 97763
2010-03-04 23:24:19 +00:00
Johnny Chen ece1797542 Drop the ".w" qualifier for t2UXTB16* instructions as there is no 16-bit version
of either sxtb16 or uxtb16, and the unified syntax does not specify ".w".

llvm-svn: 97760
2010-03-04 22:24:41 +00:00
Jeffrey Yasskin 735b0ae247 Fix memcheck-found leaks: one false positive from using new[], and one true
positive where pointers would be leaked on llvm_shutdown.

llvm-svn: 97759
2010-03-04 22:15:01 +00:00
Jim Grosbach 1201f29321 For SJLJ exception handling, make sure that all calls that are not marked
as nounwind are marked with a -1 call-site value. This is necessary to, for
example, correctly process exceptions thrown from within an "unexpected"
execption handler (see SingleSource/Regression/C++/EH/expection_spec_test.cpp).

llvm-svn: 97757
2010-03-04 22:07:46 +00:00
Bob Wilson 749ba9a7d5 pr6478: The frame pointer spill frame index is only defined when there is a
frame pointer.

llvm-svn: 97755
2010-03-04 21:42:36 +00:00
Evan Cheng a325e562ee Run machine licm before machine cse to avoid messing up licm opportunities.
llvm-svn: 97752
2010-03-04 21:28:09 +00:00
Evan Cheng 1abd1a9f4b Avoid cse load instructions unless they are known to be invariant loads.
llvm-svn: 97747
2010-03-04 21:18:08 +00:00
Bob Wilson cf6e29a818 pr6480: Don't try producing ld/st-multiple instructions when the address is
an undef value.  This is only going to come up for bugpoint-reduced tests --
correct programs will not access memory at undefined addresses -- so it's not
worth the effort of doing anything more aggressive.

llvm-svn: 97745
2010-03-04 21:04:38 +00:00
Erick Tryzelaar 444c0955af Rewrite makefiles to explicitly reference DESTDIR to fix bug 3153.
We need this so can not bake DESTDIR into the O'Caml symlinks.

llvm-svn: 97743
2010-03-04 20:56:19 +00:00
Jakob Stoklund Olesen af6ca23294 Fix the remaining MUL8 and DIV8 to define AX instead of AL,AH.
These instructions technically define AL,AH, but a trick in X86ISelDAGToDAG
reads AX in order to avoid reading AH with a REX instruction.

Fix PR6489.

llvm-svn: 97742
2010-03-04 20:42:07 +00:00
Dan Gohman b8ebd408da Fix recognition of 16-bit bswap for C front-ends which emit the
clobber registers in a different order.

llvm-svn: 97741
2010-03-04 19:58:08 +00:00
Chris Lattner 795667b424 not committing what you test = bad.
llvm-svn: 97740
2010-03-04 19:54:45 +00:00
Chris Lattner 6ce8e24b70 make gep matching in fastisel match the base of the gep as a
register if it isn't possible to match the indexes *and* the base.
This fixes some fast isel rejects of load instructions on oggenc.

llvm-svn: 97739
2010-03-04 19:48:19 +00:00
Chris Lattner c1cb75eb72 add a statistic for # times fastisel fails.
llvm-svn: 97738
2010-03-04 19:46:56 +00:00
Jeffrey Yasskin c3b7d1edfa 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.

llvm-svn: 97737
2010-03-04 19:45:09 +00:00
Dan Gohman 9cc886b9f1 Fix a typo Duncan noticed.
llvm-svn: 97735
2010-03-04 19:11:28 +00:00
Johnny Chen 334db0ce7f 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.

llvm-svn: 97731
2010-03-04 17:40:44 +00:00
John McCall 77ffdaf033 Simplify the condition-checking logic and hopefully clear up a build failure
that somehow got through my testing.

llvm-svn: 97728
2010-03-04 11:48:42 +00:00