Commit Graph

152 Commits

Author SHA1 Message Date
Evan Cheng cdc0060e27 Add DisableGVCompilation which forces the JIT to assert when it tries to allocate space for a GlobalVariable.
llvm-svn: 56557
2008-09-24 16:25:55 +00:00
Evan Cheng 5cc53c34c3 Preliminary support for systems which require changing JIT memory regions privilege from read / write to read / executable.
llvm-svn: 56303
2008-09-18 07:54:21 +00:00
Dan Gohman cf3e3017c8 Avoid a warning about isTargetNullPtr being unused in release builds.
llvm-svn: 55350
2008-08-26 01:38:29 +00:00
Evan Cheng 7ff05bf541 Add new parameter Fast to createJIT to enable the fast codegen path.
llvm-svn: 54523
2008-08-08 08:11:34 +00:00
Dale Johannesen b086d3820d Rewrite JIT handling of GlobalVariables so they
are allocated in the same buffer as the code,
jump tables, etc.

The default JIT memory manager does not handle buffer
overflow well.  I didn't introduce this and I'm not
attempting to fix it here, but it is more likely to
be hit now since we're putting more stuff in the
buffer.  This affects one test that I know of so far,
MultiSource/Benchmarks/NPB-serial/is.

llvm-svn: 54442
2008-08-07 01:30:15 +00:00
Evan Cheng 84a9055e27 Don't forget to initialize SymbolSearchingDisabled.
llvm-svn: 52414
2008-06-17 16:49:02 +00:00
Nate Begeman 8f83fc4d9b Fix a couple issues with the JIT and multiple modules:
1. The "JITState" object creates a PassManager with the ModuleProvider that the
   jit is created with.  If the ModuleProvider is removed and deleted, the
   PassManager is invalid.

2. The Global maps in the JIT were not invalidated with a ModuleProvider was 
   removed.  This could lead to a case where the Module would be freed, and a 
   new Module with Globals at the same addresses could return invalid results.

llvm-svn: 51384
2008-05-21 16:34:48 +00:00
Dan Gohman 69ddfbfe9e Fix ExecutionEngine's constant code to work properly when structs and arrays
will become first-class types.

llvm-svn: 51293
2008-05-20 03:20:09 +00:00
Dale Johannesen ce4396bc92 Add CommonLinkage; currently tentative definitions
are represented as "weak", but there are subtle differences
in some cases on Darwin, so we need both.  The intent
is that "common" will behave identically to "weak" unless
somebody changes their target to do something else.
No functional change as yet.

llvm-svn: 51118
2008-05-14 20:12:51 +00:00
Chris Lattner ee1817300a Make ExecutionEngine::updateGlobalMapping return the old mapping.
llvm-svn: 49206
2008-04-04 04:47:41 +00:00
Duncan Sands cd4a6bed89 Fix formatting.
llvm-svn: 48151
2008-03-10 16:38:37 +00:00
Nick Lewycky a53414fd79 Load the symbols first so that the interpreter constructor can find them when
it tries to initialize them.

llvm-svn: 48046
2008-03-08 02:49:45 +00:00
Dan Gohman ca24fd9096 Simplify code using convertFromZeroExtendedInteger with an APInt
by using the new convertFromAPInt directly.

llvm-svn: 47739
2008-02-29 01:27:13 +00:00
Anton Korobeynikov 579f07135a Unbreak build with gcc 4.3: provide missed includes and silence most annoying warnings.
llvm-svn: 47367
2008-02-20 11:08:44 +00:00
Chris Lattner 1dd86b1154 Support vector constant zeros, thanks to Zack Rusin for the testcase.
llvm-svn: 47148
2008-02-15 00:57:28 +00:00
Nicolas Geoffray 21ad494f67 Enable exception handling int JIT
llvm-svn: 47079
2008-02-13 18:39:37 +00:00
Chris Lattner f3ebc3f3d2 Remove attribution from file headers, per discussion on llvmdev.
llvm-svn: 45418
2007-12-29 20:36:04 +00:00
Christopher Lamb edf0788758 Change the PointerType api for creating pointer types. The old functionality of PointerType::get() has become PointerType::getUnqual(), which returns a pointer in the generic address space. The new prototype of PointerType::get() requires both a type and an address space.
llvm-svn: 45082
2007-12-17 01:12:55 +00:00
Duncan Sands 26d6539e70 These are more correctly called signaling NaNs.
llvm-svn: 45059
2007-12-15 17:37:40 +00:00
Duncan Sands 1202d1b1c4 Teach the interpreter to read and write memory in the
endianness of the target not of the host.  Done by the
simple expedient of reversing bytes for primitive types
if the host and target endianness don't match.  This is
correct for integer and pointer types.  I don't know if
it is correct for floating point types.

llvm-svn: 45039
2007-12-14 19:38:31 +00:00
Duncan Sands fde556745b Remove host endianness info from TargetData and
put it in a new header System/Host.h instead.
Instead of getting the endianness from configure,
calculate it directly.

llvm-svn: 44959
2007-12-12 23:03:45 +00:00
Duncan Sands 5c65cb4633 Fix PR1836: in the interpreter, read and write apints
using the minimum possible number of bytes.  For little
endian targets run on little endian machines, apints are
stored in memory from LSB to MSB as before.  For big endian
targets on big endian machines they are stored from MSB to
LSB which wasn't always the case before (if the target and
host endianness doesn't match values are stored according
to the host's endianness).  Doing this requires knowing the
endianness of the host, which is determined when configuring -
thanks go to Anton for this.  Only having access to little
endian machines I was unable to properly test the big endian
part, which is also the most complicated...

llvm-svn: 44796
2007-12-10 17:43:13 +00:00
Chris Lattner dc351b94f9 simplify creation of the interpreter, make ExecutionEngine ctor protected,
delete one ExecutionEngine ctor, minor cleanup.

llvm-svn: 44646
2007-12-06 01:08:09 +00:00
Duncan Sands ff306287ff My compiler complains that "x always evaluates to true"
in this call:

	Result.IntVal = APInt(80, 2, x);

What is x?

	uint16_t x[8];

I deduce that the APInt constructor being used is this one:

  APInt(uint32_t numBits, uint64_t val, bool isSigned = false);

rather than this one:

  APInt(uint32_t numBits, uint32_t numWords, const uint64_t bigVal[]);

That doesn't seem right!  This fix compiles but is otherwise completely
untested.

llvm-svn: 44400
2007-11-28 10:36:19 +00:00
Duncan Sands 44b8721de8 Executive summary: getTypeSize -> getTypeStoreSize / getABITypeSize.
The meaning of getTypeSize was not clear - clarifying it is important
now that we have x86 long double and arbitrary precision integers.
The issue with long double is that it requires 80 bits, and this is
not a multiple of its alignment.  This gives a primitive type for
which getTypeSize differed from getABITypeSize.  For arbitrary precision
integers it is even worse: there is the minimum number of bits needed to
hold the type (eg: 36 for an i36), the maximum number of bits that will
be overwriten when storing the type (40 bits for i36) and the ABI size
(i.e. the storage size rounded up to a multiple of the alignment; 64 bits
for i36).

This patch removes getTypeSize (not really - it is still there but
deprecated to allow for a gradual transition).  Instead there is:

(1) getTypeSizeInBits - a number of bits that suffices to hold all
values of the type.  For a primitive type, this is the minimum number
of bits.  For an i36 this is 36 bits.  For x86 long double it is 80.
This corresponds to gcc's TYPE_PRECISION.

(2) getTypeStoreSizeInBits - the maximum number of bits that is
written when storing the type (or read when reading it).  For an
i36 this is 40 bits, for an x86 long double it is 80 bits.  This
is the size alias analysis is interested in (getTypeStoreSize
returns the number of bytes).  There doesn't seem to be anything
corresponding to this in gcc.

(3) getABITypeSizeInBits - this is getTypeStoreSizeInBits rounded
up to a multiple of the alignment.  For an i36 this is 64, for an
x86 long double this is 96 or 128 depending on the OS.  This is the
spacing between consecutive elements when you form an array out of
this type (getABITypeSize returns the number of bytes).  This is
TYPE_SIZE in gcc.

Since successive elements in a SequentialType (arrays, pointers
and vectors) need to be aligned, the spacing between them will be
given by getABITypeSize.  This means that the size of an array
is the length times the getABITypeSize.  It also means that GEP
computations need to use getABITypeSize when computing offsets.
Furthermore, if an alloca allocates several elements at once then
these too need to be aligned, so the size of the alloca has to be
the number of elements multiplied by getABITypeSize.  Logically
speaking this doesn't have to be the case when allocating just
one element, but it is simpler to also use getABITypeSize in this
case.  So alloca's and mallocs should use getABITypeSize.  Finally,
since gcc's only notion of size is that given by getABITypeSize, if
you want to output assembler etc the same as gcc then getABITypeSize
is the size you want.

Since a store will overwrite no more than getTypeStoreSize bytes,
and a read will read no more than that many bytes, this is the
notion of size appropriate for alias analysis calculations.

In this patch I have corrected all type size uses except some of
those in ScalarReplAggregates, lib/Codegen, lib/Target (the hard
cases).  I will get around to auditing these too at some point,
but I could do with some help.

Finally, I made one change which I think wise but others might
consider pointless and suboptimal: in an unpacked struct the
amount of space allocated for a field is now given by the ABI
size rather than getTypeStoreSize.  I did this because every
other place that reserves memory for a type (eg: alloca) now
uses getABITypeSize, and I didn't want to make an exception
for unpacked structs, i.e. I did it to make things more uniform.
This only effects structs containing long doubles and arbitrary
precision integers.  If someone wants to pack these types more
tightly they can always use a packed struct.

llvm-svn: 43620
2007-11-01 20:53:16 +00:00
Chris Lattner fd6f3257b8 add a mechanism for the JIT to invoke a function to lazily create functions as they are referenced.
llvm-svn: 43210
2007-10-22 02:50:12 +00:00
Chris Lattner edaf0b4651 LoadLibraryPermanently doesn't throw.
llvm-svn: 43207
2007-10-21 22:58:11 +00:00
Chris Lattner b5163bb9f0 Add a convenience method for creating EE's.
llvm-svn: 43206
2007-10-21 22:57:11 +00:00
Devang Patel 324fe8904f Add removeModuleProvider()
llvm-svn: 43002
2007-10-15 19:56:32 +00:00
Neil Booth 5f00973393 convertFromInteger, as originally written, expected sign-extended
input.  APInt unfortunately zero-extends signed integers, so Dale
modified the function to expect zero-extended input.  Make this
assumption explicit in the function name.

llvm-svn: 42732
2007-10-07 11:45:55 +00:00
Dale Johannesen 9150652b21 Constant fold int-to-long-double conversions;
use APFloat for int-to-float/double; use
round-to-nearest for these (implementation-defined,
seems to match gcc).

llvm-svn: 42484
2007-09-30 18:19:03 +00:00
Dale Johannesen 4230512f32 Change APFloat::convertFromInteger to take the incoming
bit width instead of number of words allocated, which
makes it actually work for int->APF conversions.
Adjust callers.  Add const to one of the APInt constructors
to prevent surprising match when called with const
argument.

llvm-svn: 42210
2007-09-21 22:09:37 +00:00
Dale Johannesen a1336cf57e Implement x86 long double in jit (not really
complete, but common cases work)

llvm-svn: 42043
2007-09-17 18:44:13 +00:00
Dale Johannesen bed9dc423c Next round of APFloat changes.
Use APFloat in UpgradeParser and AsmParser.
Change all references to ConstantFP to use the
APFloat interface rather than double.  Remove
the ConstantFP double interfaces.
Use APFloat functions for constant folding arithmetic
and comparisons.
(There are still way too many places APFloat is
just a wrapper around host float/double, but we're
getting there.)

llvm-svn: 41747
2007-09-06 18:13:44 +00:00
Reid Spencer 2dc9f13278 Fix a comment typo noticed by Sandro Magi.
llvm-svn: 41018
2007-08-11 15:57:56 +00:00
Anton Korobeynikov b781886de7 Add comments to fallsthrough cases. Also, this fixes PR1492
llvm-svn: 37405
2007-06-03 19:20:49 +00:00
Anton Korobeynikov 8c32c1114f Check arguments & return types of main(). Abort in case of no match.
llvm-svn: 37404
2007-06-03 19:17:35 +00:00
Zhou Sheng 8ff9ff7975 Compute the correct word number.
llvm-svn: 37322
2007-05-24 15:03:18 +00:00
Jeff Cohen 72ac14ed29 Unbreak C++ build.
llvm-svn: 35067
2007-03-12 17:57:00 +00:00
Reid Spencer 4fd528f213 Fix all of last night's JIT failures in Prolangs-C++ by finishing the
implementation of getConstantValue().

llvm-svn: 34988
2007-03-06 22:23:15 +00:00
Reid Spencer 4e42790c43 1. Make StoreValueToMemory a little more efficient by not requiring caller
to make a copy of the GenericValue.
2. Fix a copy & paste bug in StoreValueToMemory where 64-bit values were
   truncated to 32

llvm-svn: 34958
2007-03-06 05:03:16 +00:00
Reid Spencer 87aa65f40e Simplify things significantly because GenericValue now has a single integer
field, of type APInt, instead of multiple integer fields. Also, get rid of
the special endianness code in StoreValueToMemory and LoadValueToMemory.
ExecutionEngine is always used to execute on the host platform so this is
now unnecessary.

llvm-svn: 34946
2007-03-06 03:04:04 +00:00
Reid Spencer 603682ad1d Deal with error handling better.
llvm-svn: 34887
2007-03-03 18:19:18 +00:00
Reid Spencer 00919f5769 Avoid memory leakage by having caller construct the APInt for the
destination value of LoadValueFromMemory.

llvm-svn: 34883
2007-03-03 08:36:29 +00:00
Reid Spencer 815f8dd225 Implement loading and storing of APInt values from memory.
llvm-svn: 34874
2007-03-03 06:18:03 +00:00
Reid Spencer d84d35ba70 For PR1195:
Rename PackedType -> VectorType, ConstantPacked -> ConstantVector, and
PackedTyID -> VectorTyID. No functional changes.

llvm-svn: 34293
2007-02-15 02:26:10 +00:00
Chris Lattner 4da5e17cfc From Dan Gohman:
While preparing http://llvm.org/PR1198 I noticed several asserts
protecting unprepared code from i128 types that weren't actually failing
when they should because they were written as assert("foo") instead of
something like assert(0 && "foo"). This patch fixes all the cases that a
quick grep found.

llvm-svn: 34267
2007-02-14 06:20:04 +00:00
Chris Lattner c44bd78a2e eliminate use of TargetData::getIndexedOffset that takes a vector
llvm-svn: 34163
2007-02-10 20:35:22 +00:00
Chris Lattner c473d8e431 Privatize StructLayout::MemberOffsets, adding an accessor
llvm-svn: 34156
2007-02-10 19:55:17 +00:00
Reid Spencer 1241d6d5ab For PR411:
Adjust to changes in Module interface:
getMainFunction() -> getFunction("main")
getNamedFunction(X) -> getFunction(X)

llvm-svn: 33922
2007-02-05 21:19:13 +00:00