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Commit Graph

6753 Commits

Author SHA1 Message Date
Evan Cheng
fcbdc8bd6e Xform bitconvert(build_pair(load a, load b)) to a single load if the load locations are at the right offset from each other.
llvm-svn: 51008
2008-05-12 23:04:07 +00:00
Bill Wendling
646f3458c4 Constify the machine instruction passed into the
"is{Trivially,Really}ReMaterializable" methods.

llvm-svn: 51001
2008-05-12 20:54:26 +00:00
Evan Cheng
228cce5b2d Forgot this.
llvm-svn: 50993
2008-05-12 20:08:05 +00:00
Nate Begeman
11c0772a30 Add support for vicmp/vfcmp codegen, more legalize support coming.
This is necessary to unbreak the build.

llvm-svn: 50988
2008-05-12 19:40:03 +00:00
Nate Begeman
b5b1e1353b Add two new instructions to the llvm IR, vicmp and vfcmp. see updated LangRef
for details.  CodeGen support coming in a follow up patch

llvm-svn: 50985
2008-05-12 19:01:56 +00:00
Chris Lattner
f459fcde61 Add a new SparsePropagation analysis utility, which allows you to do
SCCP like sparse lattice analysis with relative ease.  Just pick your
lattice function and implement the transfer function and you're good.
Just make sure you don't break monotonicity ;-)

llvm-svn: 50961
2008-05-12 01:12:24 +00:00
Nick Lewycky
6bc321fbdf Make constructors target-specific. This fixes problems where the path would
include backslashes on Windows. This should fix llvm-ld problems on win32.

llvm-svn: 50960
2008-05-11 17:37:40 +00:00
Bill Wendling
cc084a6ba1 Remove warnings when using -Wshorten-64-to-32.
llvm-svn: 50952
2008-05-10 19:59:59 +00:00
Bill Wendling
cc8838799d Prevent -W64-to-32-shortened warnings.
llvm-svn: 50947
2008-05-10 11:26:52 +00:00
Bill Wendling
adfb940f3a Prevent warnings from the -Wshorten-64-to-32 flag.
llvm-svn: 50946
2008-05-10 10:58:07 +00:00
Gabor Greif
724556e521 remove commented-out code, it is subsumed by DECLARE_TRANSPARENT_OPERAND_ACCESSORS
llvm-svn: 50944
2008-05-10 09:36:58 +00:00
Gabor Greif
49bf1a4cf6 merge of use-diet branch to trunk
llvm-svn: 50943
2008-05-10 08:32:32 +00:00
Evan Cheng
f87942325f Make OpActionsCapacity multiple of 4.
llvm-svn: 50917
2008-05-09 21:50:23 +00:00
Chris Lattner
69724eed32 add support for pattern matching 'neg'
llvm-svn: 50883
2008-05-09 05:20:27 +00:00
Chris Lattner
3c362081d5 add a new Instruction::mayReadFromMemory predicate, make
Instruction::mayWriteToMemory stronger for invokes.

llvm-svn: 50858
2008-05-08 17:16:51 +00:00
Anton Korobeynikov
ddb93e7a02 Turn StripPointerCast() into a method
llvm-svn: 50836
2008-05-07 22:54:15 +00:00
Ted Kremenek
1534cce257 Make the interface of CStrInCStrNoCase be the same as strcasestr.
llvm-svn: 50828
2008-05-07 20:04:18 +00:00
Chris Lattner
3ee18d7c51 Add a new LibCallAliasAnalysis pass, which is parameterized
by an instance of LibCallInfo to provide mod/ref info of
standard library functions.  This is powerful enough to
say that 'sqrt' is readonly except that it modifies errno,
or that "printf doesn't store to memory unless the %n
constraint is present" etc.

llvm-svn: 50827
2008-05-07 19:53:05 +00:00
Ted Kremenek
b82fe559d6 Fix some serious logical errors in CStrInCStrNoCase pointed out by Bill.
llvm-svn: 50826
2008-05-07 19:22:36 +00:00
Duncan Sands
6f4e916c6a Output correct exception handling and frame info
on x86-64 linux.  This causes no regressions on
32 bit linux and 32 bit ppc.  More tests pass
on 64 bit ppc with no regressions.  I didn't
turn on eh on 64 bit linux because the intrinsics
needed to compile the eh runtime aren't done
yet.  But if you turn it on and link with the
mainline runtime then eh seems to work fine
on x86-64 linux with this patch.  Thanks to
Dale for testing.  The main point of the patch
is that if you output that some object is
encoded using 4 bytes you had better not output
8 bytes for it: the patch makes everything
consistent.

llvm-svn: 50825
2008-05-07 19:11:09 +00:00
Ted Kremenek
cbaf12a084 Guard for empty strings in CStrInCStrNoCase.
llvm-svn: 50823
2008-05-07 18:49:31 +00:00
Ted Kremenek
535ed35152 Added CStrInCStrNoCase, a portable implementation of strcasestr.
llvm-svn: 50821
2008-05-07 18:35:46 +00:00
Chris Lattner
e70ff7b21c Add a new interface for describing the behavior of library calls. This
Currently is sufficient to describe mod/ref behavior but will hopefully
eventually be extended for other purposes.

This isn't used by anything yet.

llvm-svn: 50820
2008-05-07 18:21:13 +00:00
Nick Lewycky
adfc627b77 Typo.
llvm-svn: 50805
2008-05-07 06:39:04 +00:00
Bill Wendling
a7619e13ed Make the use of the "noinline" attribute conditional on using GCC.
llvm-svn: 50789
2008-05-07 00:00:34 +00:00
Bill Wendling
9d987912d6 Workaround for a compiler bug (see <rdar://problem/5852746>). Once that bug is
fixed, revert this patch.

llvm-svn: 50782
2008-05-06 23:30:02 +00:00
Anton Korobeynikov
90ee6d6616 Make StripPointerCast a common function (should we mak it method of Value instead?)
llvm-svn: 50775
2008-05-06 22:52:30 +00:00
Gordon Henriksen
464bfd405a Improve documentation.
llvm-svn: 50768
2008-05-06 19:17:01 +00:00
Dan Gohman
a84b75df17 Remove uses of llvm/System/IncludeFile.h that are no longer needed.
llvm-svn: 50695
2008-05-06 01:32:53 +00:00
Dan Gohman
f7f3f7ab8f Fix a broken doxygen comment, and reword it for clarity.
llvm-svn: 50687
2008-05-06 00:20:10 +00:00
Bill Wendling
9facb00af6 Using "unsigned" was masking the "size_t" version of this method.
llvm-svn: 50668
2008-05-05 20:51:58 +00:00
Devang Patel
0206af99dc Remove unused function.
llvm-svn: 50664
2008-05-05 19:44:16 +00:00
Mon P Wang
84a269e023 Added addition atomic instrinsics and, or, xor, min, and max.
llvm-svn: 50663
2008-05-05 19:05:59 +00:00
Evan Cheng
d9353009b7 Fix more -Wshorten-64-to-32 warnings.
llvm-svn: 50659
2008-05-05 18:30:58 +00:00
Evan Cheng
281654e4fb Fix 80 column violations.
llvm-svn: 50655
2008-05-05 17:41:03 +00:00
Dan Gohman
c860d9c77c Add AsmPrinter support for emitting a directive to declare that
the code being generated does not require an executable stack.

Also, add target-specific code to make use of this on Linux
on x86. 

llvm-svn: 50634
2008-05-05 00:28:39 +00:00
Owen Anderson
611b415d12 Fix PR1098 by correcting the postdominators analysis.
Patch by Florian Brandner.

llvm-svn: 50628
2008-05-04 21:07:35 +00:00
Chris Lattner
9b05ba1b41 remove obsolete method.
llvm-svn: 50622
2008-05-04 18:14:55 +00:00
Gordon Henriksen
6f33fd36ab Use (void) instead of () in C code.
llvm-svn: 50620
2008-05-04 12:55:34 +00:00
Torok Edwin
d016bb2685 Implement destructor for PostDominatorTree to eliminate a memory leak.
llvm-svn: 50607
2008-05-03 20:25:26 +00:00
Ted Kremenek
aff3b5126a Implement operator-> for ImmutableMap iterators.
llvm-svn: 50603
2008-05-03 01:05:46 +00:00
Evan Cheng
c1c2adbfc6 Add separate intrinsics for MMX / SSE shifts with i32 integer operands. This allow us to simplify the horribly complicated matching code.
llvm-svn: 50601
2008-05-03 00:52:09 +00:00
Evan Cheng
c2d34f03bf Suppress -Wshorten-64-to-32 warnings for 64-bit hosts.
llvm-svn: 50590
2008-05-02 21:15:08 +00:00
Ted Kremenek
9d8f6a05b6 Initialize a local variable.
llvm-svn: 50527
2008-05-01 17:08:00 +00:00
Chris Lattner
be2bafbe92 Delete the IPO simplify-libcalls and completely reimplement it as
a FunctionPass.  This makes it simpler, fixes dozens of bugs, adds
a couple of minor features, and shrinks is considerably: from
2214 to 1437 lines.

llvm-svn: 50520
2008-05-01 06:25:24 +00:00
Chris Lattner
3835284f4c Add CreateCall3/CreateCall4 at Eric's request.
llvm-svn: 50515
2008-05-01 05:23:45 +00:00
Chris Lattner
09cf777a96 Add a spiffy little "CreateCall2" method, which can be used to make
a function call that takes two Value*'s as arguments.

llvm-svn: 50514
2008-05-01 05:11:00 +00:00
Arnold Schwaighofer
f58a35e2ec Tail call optimization improvements:
Move platform independent code (lowering of possibly overwritten
arguments, check for tail call optimization eligibility) from
target X86ISelectionLowering.cpp to TargetLowering.h and
SelectionDAGISel.cpp.

Initial PowerPC tail call implementation:

Support ppc32 implemented and tested (passes my tests and
test-suite llvm-test).  
Support ppc64 implemented and half tested (passes my tests).
On ppc tail call optimization is performed if 
  caller and callee are fastcc
  call is a tail call (in tail call position, call followed by ret)
  no variable argument lists or byval arguments
  option -tailcallopt is enabled
Supported:
 * non pic tail calls on linux/darwin
 * module-local tail calls on linux(PIC/GOT)/darwin(PIC)
 * inter-module tail calls on darwin(PIC)
If constraints are not met a normal call will be emitted.

A test checking the argument lowering behaviour on x86-64 was added.

llvm-svn: 50477
2008-04-30 09:16:33 +00:00
Chris Lattner
8f27116c1d add missing #include
llvm-svn: 50468
2008-04-30 04:56:14 +00:00
Chris Lattner
710d05695f add a method for comparing to see if a value has a specified name.
llvm-svn: 50465
2008-04-30 03:55:40 +00:00
Owen Anderson
5b7928f3d2 Rename DeadLoopElimination to LoopDeletion, part 2.
llvm-svn: 50437
2008-04-29 20:06:54 +00:00
Roman Levenstein
35f24acb46 Use std::set instead of std::priority_queue for the RegReductionPriorityQueue.
This removes the existing bottleneck related to the removal of elements from 
the middle of the queue.

Also fixes a subtle bug in ScheduleDAGRRList::CapturePred:
It was updating the state of the SUnit before removing it. As a result, the
comparison operators were working incorrectly and this SUnit could not be removed 
from the queue properly.

Reviewed by Evan and Dan. Approved by Dan.

llvm-svn: 50412
2008-04-29 09:07:59 +00:00
Owen Anderson
4cc52fd657 Add dead loop elimination, which removes dead loops for which we can compute
the trip count.

llvm-svn: 50382
2008-04-29 00:38:34 +00:00
Anton Korobeynikov
a2edd9607f Correct parameter attributes encoding for C bindings.
Patch by Anders Johnsen!

llvm-svn: 50375
2008-04-28 21:48:04 +00:00
Dale Johannesen
08671c6cac Don't try to convert PPC long double.
llvm-svn: 50369
2008-04-28 19:46:58 +00:00
Ted Kremenek
fd04109260 Add more alignment enums.
llvm-svn: 50363
2008-04-28 17:58:20 +00:00
Gordon Henriksen
0b2f0d3007 Expose parameter attributes via C bindings.
Patch by Anders Johnsen!

llvm-svn: 50360
2008-04-28 17:37:06 +00:00
Dan Gohman
0285c1e9bb Fix the SVOffset values for loads and stores produced by
memcpy/memset expansion. It was a bug for the SVOffset value
to be used in the actual address calculations.

llvm-svn: 50359
2008-04-28 17:15:20 +00:00
Mikhail Glushenkov
4c358b3125 Add support for response files to the CommandLine library.
llvm-svn: 50355
2008-04-28 16:44:25 +00:00
Chris Lattner
27fa922841 Remove the SmallVector ctor that converts from a SmallVectorImpl. This
conversion open the door for many nasty implicit conversion issues, and
can be easily solved by initializing with (V.begin(), V.end()) when 
needed.

This patch includes many small cleanups for sdisel also.

llvm-svn: 50340
2008-04-28 06:44:42 +00:00
Chris Lattner
89339f3a90 restore the copy ctor in SmallVector. This fixes serious
errors I introduced in my last patch.

llvm-svn: 50338
2008-04-28 06:32:08 +00:00
Chris Lattner
a03159bc35 generalize SmallVector copy ctor, there is no requirement for
the initialization vector to have the same fixed size, just the
same element type.

llvm-svn: 50334
2008-04-28 06:01:06 +00:00
Chris Lattner
39a4281deb Implement a signficant optimization for inline asm:
When choosing between constraints with multiple options,
like "ir", test to see if we can use the 'i' constraint and
go with that if possible.  This produces more optimal ASM in
all cases (sparing a register and an instruction to load it),
and fixes inline asm like this:

void test () {
  asm volatile (" %c0 %1 " : : "imr" (42), "imr"(14));
}

Previously we would dump "42" into a memory location (which
is ok for the 'm' constraint) which would cause a problem
because the 'c' modifier is not valid on memory operands.

Isn't it great how inline asm turns 'missed optimization'
into 'compile failed'??

Incidentally, this was the todo in 
PowerPC/2007-04-24-InlineAsm-I-Modifier.ll

Please do NOT pull this into Tak.

llvm-svn: 50315
2008-04-27 00:37:18 +00:00
Chris Lattner
b83aaaa855 Move a bunch of inline asm code out of line.
llvm-svn: 50313
2008-04-27 00:09:47 +00:00
Chris Lattner
b5bd654163 A few inline asm cleanups:
- Make targetlowering.h fit in 80 cols.
  - Make LowerAsmOperandForConstraint const.
  - Make lowerXConstraint -> LowerXConstraint
  - Make LowerXConstraint return a const char* instead of taking a string byref.

llvm-svn: 50312
2008-04-26 23:02:14 +00:00
Nick Lewycky
1f831c0f57 Remove 'unwinds to' support from mainline. This patch undoes r47802 r47989
r48047 r48084 r48085 r48086 r48088 r48096 r48099 r48109 and r48123.

llvm-svn: 50265
2008-04-25 16:53:59 +00:00
Gordon Henriksen
cd80583c68 PR2245: Misleading parameter name in llvm-c/Core.h:LLVMConstArray
Applying fix by Frits van Bommel.

llvm-svn: 50250
2008-04-25 03:21:19 +00:00
Ted Kremenek
247bdc8ec7 Implement != for DenseSet iterators.
llvm-svn: 50236
2008-04-24 23:49:45 +00:00
Ted Kremenek
100956926c Added iterator support for DenseSet.
llvm-svn: 50235
2008-04-24 23:48:12 +00:00
Evan Cheng
1a97cb159e - Check if a register is livein before removing it. It may have already been removed.
- Do not iterate over SmallPtrSet, the order of iteration is not deterministic.

llvm-svn: 50209
2008-04-24 09:06:33 +00:00
Anton Korobeynikov
b1ad6979dc Add facility for pre-RA passes
llvm-svn: 50165
2008-04-23 18:22:28 +00:00
Anton Korobeynikov
73935826d4 Make stack alignment options global for all targets
llvm-svn: 50157
2008-04-23 18:18:10 +00:00
Dan Gohman
3c6f2b3a6f Fix some whitespace.
llvm-svn: 50151
2008-04-23 17:50:15 +00:00
Chris Lattner
39e4b2e5d2 Enforce that multiple return values have to have at least one result.
llvm-svn: 50137
2008-04-23 05:36:34 +00:00
Nick Lewycky
97179cb16f Whoops! Undo r50087, unbreak the build.
llvm-svn: 50088
2008-04-22 05:20:06 +00:00
Nick Lewycky
e708ae5ffd Reverse r47989. Part of removing 'unwinds to' support.
llvm-svn: 50087
2008-04-22 05:16:51 +00:00
Chris Lattner
57e11a167d Move SplitBlockPredecessors out of loopsimplify into BasicBlockUtils.h
as a global helper function.  At the same type, switch it from taking
a vector of predecessors to an arbitrary sequential input.  This allows
us to switch LoopSimplify to use a SmallVector for various temporary
vectors that it passed into SplitBlockPredecessors.

llvm-svn: 50020
2008-04-21 01:28:02 +00:00
Chris Lattner
368e2b28bf add a handy helper method to instruction, useful for determining
whether it is used outside of some block.  This can be used to see
if there are any non-local references, for example.

llvm-svn: 50004
2008-04-20 22:11:30 +00:00
Chris Lattner
c8c74f39db Add a new Jump Threading pass, which will handle cases
such as those in PR2235.  Right now the pass is not very
effective. :)

llvm-svn: 50000
2008-04-20 20:35:01 +00:00
Dale Johannesen
15969b664d Check we aren't trying to convert PPC long double.
This fixes the testsuite failure on ppcf128-4.ll.

llvm-svn: 49994
2008-04-20 18:23:46 +00:00
Nicolas Geoffray
c80229e1c7 Cosmetic changes, as suggested by Evan. No functionality changes.
llvm-svn: 49993
2008-04-20 17:44:19 +00:00
Chris Lattner
d299f7b8cf Allow argpromote to promote struct arguments with a specified number
of elements.  Patch by Matthijs Kooijman!

llvm-svn: 49962
2008-04-19 19:50:01 +00:00
Nicolas Geoffray
f005e6fa3b Enable jitting with a known memory size.
llvm-svn: 49924
2008-04-18 20:59:31 +00:00
Dan Gohman
cfdb39da9c Remove the implicit conversion from SDOperandPtr to SDOperand*; this
may fix a build error on Visual Studio.

llvm-svn: 49876
2008-04-17 23:02:12 +00:00
Argyrios Kyrtzidis
2f4e52ee48 Bring in uint32_t, uint64_t, and int64_t types for MSVC.
llvm-svn: 49854
2008-04-17 13:56:31 +00:00
Roman Levenstein
2a2a386127 Minor clean-up based on Dan's comments.
llvm-svn: 49844
2008-04-17 09:29:48 +00:00
Scott Michel
4b37c88f48 Workaround for PR2207, in which pred_iterator assert gets triggered due to a
wee problem in Xcode 2.[45]/gcc 4.0.1.

llvm-svn: 49831
2008-04-16 23:46:39 +00:00
Dan Gohman
14ff970e58 Fix a copy+paste error in a comment.
llvm-svn: 49820
2008-04-16 21:57:29 +00:00
Nicolas Geoffray
1f3211af01 Correlate stubs with functions in JIT: when emitting a stub, the JIT tells the memory manager which function
the stub will resolve.

llvm-svn: 49814
2008-04-16 20:46:05 +00:00
Eric Christopher
3630cecfe4 Fix comment.
llvm-svn: 49813
2008-04-16 20:45:31 +00:00
Nicolas Geoffray
82baa2d2c6 Infrastructure for getting the machine code size of a function and an instruction. X86, PowerPC and ARM are implemented
llvm-svn: 49809
2008-04-16 20:10:13 +00:00
Bill Wendling
45432e8339 Add "empty()" method to sys::Path and remove unnecessary whitespace.
Patch by Mikhail Glushenkov!

llvm-svn: 49803
2008-04-16 18:27:02 +00:00
Roman Levenstein
728d59166f Ongoing work on improving the instruction selection infrastructure:
Rename SDOperandImpl back to SDOperand.
Introduce the SDUse class that represents a use of the SDNode referred by
an SDOperand. Now it is more similar to Use/Value classes.

Patch is approved by Dan Gohman.

llvm-svn: 49795
2008-04-16 16:15:27 +00:00
Gabor Greif
32b4942a0a merge of r49785 (from branches/ggreif/use-diet): pass V to dyn_cast by const reference, this avoids copy-constructing and destructing all the time. especially important if these constructors are not accessible
llvm-svn: 49787
2008-04-16 11:43:47 +00:00
Evan Cheng
6d05ce493b Rewrite LiveVariable liveness computation. The new implementation is much simplified. It eliminated the nasty recursive routines and removed the partial def / use bookkeeping. There is also potential for performance improvement by replacing the conservative handling of partial physical register definitions. The code is currently disabled until live interval analysis is taught of the name scheme.
This patch also fixed a couple of nasty corner cases.

llvm-svn: 49784
2008-04-16 09:46:40 +00:00
Owen Anderson
030428b435 Major repairs to the post-dominators implementation. Patch from Florian Brandner!
llvm-svn: 49768
2008-04-16 04:21:16 +00:00
Chris Lattner
3d52eb61ca fix off by one error.
llvm-svn: 49766
2008-04-16 04:10:37 +00:00
Chris Lattner
f24665de72 give smallstring some methods to do 'itoa'.
llvm-svn: 49765
2008-04-16 04:05:02 +00:00
Dale Johannesen
f45cadf9d2 Make 64-to-32 bit truncations explicit (prevent warnings).
All values here fit in 32 bits.

llvm-svn: 49736
2008-04-15 18:44:59 +00:00
Nicolas Geoffray
7e0110f724 Change Divided flag to Split, as suggested by Evan
llvm-svn: 49715
2008-04-15 08:08:50 +00:00