Commit Graph

157 Commits

Author SHA1 Message Date
Nicolas Geoffray
46fa139e26 Support for allocation of TLS variables in the JIT. Allocation of a global
variable is moved to the execution engine. The JIT calls the TargetJITInfo
to allocate thread local storage. Currently, only linux/x86 knows how to
allocate thread local global variables.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58142 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-25 15:41:43 +00:00
Nuno Lopes
c8ed902298 little optimization: reuse getPointerToGlobalIfAvailable(CGV) value in emitGlobals()
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57484 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-14 10:04:52 +00:00
Dale Johannesen
23a98551ab Add a "loses information" return value to APFloat::convert
and APFloat::convertToInteger.  Restore return value to
IEEE754.  Adjust all users accordingly.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57329 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-09 23:00:39 +00:00
Dale Johannesen
7111b02c73 Rename APFloat::convertToAPInt to bitcastToAPInt to
make it clearer what the function does.  No functional
change.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57325 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-09 18:53:47 +00:00
Evan Cheng
18314dc741 Add runStaticConstructorsDestructors which runs ctors / dtors of a single module. Patch by David Chisnall.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56849 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-30 15:51:21 +00:00
Evan Cheng
446531e7bb Add DisableGVCompilation which forces the JIT to assert when it tries to allocate space for a GlobalVariable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56557 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-24 16:25:55 +00:00
Evan Cheng
bc4707a255 Preliminary support for systems which require changing JIT memory regions privilege from read / write to read / executable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56303 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-18 07:54:21 +00:00
Dan Gohman
b6e3d6ce70 Avoid a warning about isTargetNullPtr being unused in release builds.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55350 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-26 01:38:29 +00:00
Evan Cheng
502f20b17e Add new parameter Fast to createJIT to enable the fast codegen path.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54523 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-08 08:11:34 +00:00
Dale Johannesen
dd947ea3c5 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54442 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-07 01:30:15 +00:00
Evan Cheng
1b088f3310 Don't forget to initialize SymbolSearchingDisabled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52414 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-17 16:49:02 +00:00
Nate Begeman
f049e07eb8 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51384 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-21 16:34:48 +00:00
Dan Gohman
638e378f2c Fix ExecutionEngine's constant code to work properly when structs and arrays
will become first-class types.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51293 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-20 03:20:09 +00:00
Dale Johannesen
aafce77b17 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51118 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-14 20:12:51 +00:00
Chris Lattner
f4cc3096fd Make ExecutionEngine::updateGlobalMapping return the old mapping.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49206 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-04 04:47:41 +00:00
Duncan Sands
08bfe26f5a Fix formatting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48151 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-10 16:38:37 +00:00
Nick Lewycky
6456d8639b Load the symbols first so that the interpreter constructor can find them when
it tries to initialize them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48046 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-08 02:49:45 +00:00
Dan Gohman
6282406492 Simplify code using convertFromZeroExtendedInteger with an APInt
by using the new convertFromAPInt directly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47739 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-29 01:27:13 +00:00
Anton Korobeynikov
ae9f3a3b7c Unbreak build with gcc 4.3: provide missed includes and silence most annoying warnings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47367 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-20 11:08:44 +00:00
Chris Lattner
b6e1dd7075 Support vector constant zeros, thanks to Zack Rusin for the testcase.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47148 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-15 00:57:28 +00:00
Nicolas Geoffray
afe6c2b001 Enable exception handling int JIT
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47079 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-13 18:39:37 +00:00
Chris Lattner
4ee451de36 Remove attribution from file headers, per discussion on llvmdev.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45418 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-29 20:36:04 +00:00
Christopher Lamb
43ad6b3e0d 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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45082 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-17 01:12:55 +00:00
Duncan Sands
9e4635a5b8 These are more correctly called signaling NaNs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45059 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-15 17:37:40 +00:00
Duncan Sands
8a43e9e5d7 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45039 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-14 19:38:31 +00:00
Duncan Sands
67f1c493d1 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44959 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-12 23:03:45 +00:00
Duncan Sands
1eff70451f 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...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44796 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-10 17:43:13 +00:00
Chris Lattner
9f2f142d25 simplify creation of the interpreter, make ExecutionEngine ctor protected,
delete one ExecutionEngine ctor, minor cleanup.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44646 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-06 01:08:09 +00:00
Duncan Sands
dd65a73af4 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44400 91177308-0d34-0410-b5e6-96231b3b80d8
2007-11-28 10:36:19 +00:00
Duncan Sands
514ab348fd 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43620 91177308-0d34-0410-b5e6-96231b3b80d8
2007-11-01 20:53:16 +00:00
Chris Lattner
d958a5a9fe add a mechanism for the JIT to invoke a function to lazily create functions as they are referenced.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43210 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-22 02:50:12 +00:00
Chris Lattner
c6185038b8 LoadLibraryPermanently doesn't throw.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43207 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-21 22:58:11 +00:00
Chris Lattner
8b5295b7bb Add a convenience method for creating EE's.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43206 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-21 22:57:11 +00:00
Devang Patel
73d0e211a3 Add removeModuleProvider()
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43002 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-15 19:56:32 +00:00
Neil Booth
ccf596a53e 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42732 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-07 11:45:55 +00:00
Dale Johannesen
88216af3ea 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).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42484 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-30 18:19:03 +00:00
Dale Johannesen
910993e8dc 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42210 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-21 22:09:37 +00:00
Dale Johannesen
1abac0d725 Implement x86 long double in jit (not really
complete, but common cases work)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42043 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-17 18:44:13 +00:00
Dale Johannesen
43421b3dd7 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.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41747 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-06 18:13:44 +00:00
Reid Spencer
ba28cb91c9 Fix a comment typo noticed by Sandro Magi.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41018 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-11 15:57:56 +00:00
Anton Korobeynikov
fb45086027 Add comments to fallsthrough cases. Also, this fixes PR1492
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37405 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-03 19:20:49 +00:00
Anton Korobeynikov
499d8f0c3b Check arguments & return types of main(). Abort in case of no match.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37404 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-03 19:17:35 +00:00
Zhou Sheng
849c5b4537 Compute the correct word number.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37322 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-24 15:03:18 +00:00
Jeff Cohen
2b7d7b57ae Unbreak C++ build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35067 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-12 17:57:00 +00:00
Reid Spencer
bce30f1887 Fix all of last night's JIT failures in Prolangs-C++ by finishing the
implementation of getConstantValue().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34988 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-06 22:23:15 +00:00
Reid Spencer
415c1f7438 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34958 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-06 05:03:16 +00:00
Reid Spencer
8fb0f190a9 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34946 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-06 03:04:04 +00:00
Reid Spencer
d4c0e62413 Deal with error handling better.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34887 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-03 18:19:18 +00:00
Reid Spencer
f0f09a96f3 Avoid memory leakage by having caller construct the APInt for the
destination value of LoadValueFromMemory.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34883 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-03 08:36:29 +00:00
Reid Spencer
93a2875456 Implement loading and storing of APInt values from memory.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34874 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-03 06:18:03 +00:00