Commit Graph

306 Commits

Author SHA1 Message Date
Reid Spencer 0454316c79 Bitcast all the bits of a floating point value, not just one. The zero
extension is needed because the constructor for the Destination value
causes the APInt to have a bit width of 1.
Patch by Guoling Han.

llvm-svn: 36733
2007-05-04 03:37:38 +00:00
Reid Spencer 1d48207f5b 1. Don't swap byte order in scanf. It isn't necessary and leads to
incorrect results (canonicalization was dropped several commits ago).
2. Add support for fscanf.
3. Suppress a warning about cast to pointer from non-pointer-sized integer.

llvm-svn: 36482
2007-04-26 18:19:35 +00:00
Reid Spencer a68c374e7e We only need one putchar which gives it a shot at getting matched by its
users.

llvm-svn: 36305
2007-04-21 17:11:45 +00:00
Chris Lattner d9b7511928 eliminate use of Instruction::getPrev(). Patch by Gabor Greif in 2005.
llvm-svn: 36198
2007-04-17 17:38:28 +00:00
Reid Spencer c57be6cb4e Implement @sext and @zext parameter attribute handling properly instead of
forcing every small argument of every function regardless of attributes or
calling convention to be expanded.

llvm-svn: 36174
2007-04-16 21:50:40 +00:00
Reid Spencer 8c3d3dce2b For PR1293:
* Rename the FunctionType* parameter from M to FT on all the functions.
* Implement a fix for PR1293 by just asserting that library functions that
  must return pointers should have pointer typed results. This just makes
  sure that we don't attempt to use an uninitialized integer or something
  later on.

llvm-svn: 35508
2007-03-30 16:41:50 +00:00
Bill Wendling 16574a72e1 Don't use std::hex.
llvm-svn: 35038
2007-03-08 23:37:24 +00:00
Bill Wendling 61a2773977 Don't use a cast. It causes an error on some platforms.
llvm-svn: 35037
2007-03-08 23:26:50 +00:00
Reid Spencer 1efc4aaf84 Fix some thinko's in the last patch. PtrSize has to be in bits and we
might need to zext not just trunc the value.

llvm-svn: 34955
2007-03-06 03:46:41 +00:00
Reid Spencer 10dbc1e896 Fix a bug in IntToPtr. Truncating to 64-bits only works if the integer
is larger. Adjust so that it truncates to pointer width, only if necessary.

llvm-svn: 34954
2007-03-06 03:41:50 +00:00
Reid Spencer 40015aad5a Radically simplify execution. This patch gets rid of all the special
handling for integer of various sizes. GenericValue now has just a single
integer field of type APInt. We use its facilities directly in the
execution of all instructions.

llvm-svn: 34951
2007-03-06 03:09:31 +00:00
Reid Spencer c45e10474a Adjust and simplify external function processing now that GenericValue has
a single integer field of type APInt.

llvm-svn: 34950
2007-03-06 03:08:12 +00:00
Reid Spencer 7f68713eb8 APInt's are no longer allocated on the heap because they are direct
members of GenericValue. Consequently the code to clean them up isn't
needed.

llvm-svn: 34948
2007-03-06 03:06:48 +00:00
Reid Spencer 2d89fa84bc Remove the insufficient code in Interpreter::create that computed the
Target DataLayout incorrectly. For now, we'll trust that the module has
got the correct DataLayout. In the future, this needs to be changed to
tell the TargetData to be "current host".

llvm-svn: 34947
2007-03-06 03:05:57 +00:00
Reid Spencer 04a1829559 Remove unnecessary #include.
llvm-svn: 34889
2007-03-03 18:29:16 +00:00
Reid Spencer 603682ad1d Deal with error handling better.
llvm-svn: 34887
2007-03-03 18:19:18 +00:00
Reid Spencer ec8c51c1b1 Complete the APIntification of the interpreter. All asserts for > 64 bits
have been removed and dealt with. The interpreter should now be able to
execute any LLVM program using any bit width.

llvm-svn: 34884
2007-03-03 08:38:04 +00:00
Reid Spencer 54c6e84c83 Implement APInt support for the binary operators.
Move the getConstantExpr function towards the end of the file so we don't
need a dozen forward declarations.

llvm-svn: 34877
2007-03-03 06:22:22 +00:00
Reid Spencer 72aafa1d49 1. Have the ExecutionContext keep track of the APInt's allocated and
ensure they are cleaned up when the stack frame exits.
2. Move a function to the Execution.cpp file where it belongs.

llvm-svn: 34876
2007-03-03 06:19:55 +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 c473d8e431 Privatize StructLayout::MemberOffsets, adding an accessor
llvm-svn: 34156
2007-02-10 19:55:17 +00:00
Reid Spencer 0690d442ab For PR1188:
Compute BitMask correctly.

Patch by Leo (wenwenti@hotmail.com).

llvm-svn: 34026
2007-02-08 00:29:31 +00:00
Reid Spencer 2341c22ec7 Changes to support making the shift instructions be true BinaryOperators.
This feature is needed in order to support shifts of more than 255 bits
on large integer types.  This changes the syntax for llvm assembly to
make shl, ashr and lshr instructions look like a binary operator:
   shl i32 %X, 1
instead of
   shl i32 %X, i8 1
Additionally, this should help a few passes perform additional optimizations.

llvm-svn: 33776
2007-02-02 02:16:23 +00:00
Reid Spencer 5301e7c605 For PR1136: Rename GlobalVariable::isExternal as isDeclaration to avoid
confusion with external linkage types.

llvm-svn: 33663
2007-01-30 20:08:39 +00:00
Reid Spencer 42b2c08e3a Remove tabs.
llvm-svn: 33620
2007-01-29 17:55:50 +00:00
Reid Spencer 1e960cd4fd Implement use of new IntrinsicLowering interface.
llvm-svn: 33619
2007-01-29 17:51:02 +00:00
Reid Spencer 3ac38e99b9 For PR761:
The Module::setEndianness and Module::setPointerSize methods have been
removed. Instead you can get/set the DataLayout. Adjust thise accordingly.

llvm-svn: 33530
2007-01-26 08:11:39 +00:00
Reid Spencer 2eadb5310d For PR970:
Clean up handling of isFloatingPoint() and dealing with PackedType.
Patch by Gordon Henriksen!

llvm-svn: 33415
2007-01-21 00:29:26 +00:00
Reid Spencer fff2797349 Implement the signed icmp instructions properly. To do this we introduce
a small inline function to sign extend a uint64_t value based on its
type's bitwidth. This function is then used in both executeSExtInst and
the various executeICMP_S** functions.

llvm-svn: 33403
2007-01-20 20:12:29 +00:00
Reid Spencer 3615cdf957 Implement bit-accurate sext instruction.
This patch fixes test/Integer/2007-01-17-TruncSext.ll

llvm-svn: 33394
2007-01-20 08:32:52 +00:00
Reid Spencer f854f95a17 Use the new maskToBitWidth function to ensure that the results of
computations do not overflow the intended bit width.

llvm-svn: 33326
2007-01-18 02:12:51 +00:00
Reid Spencer 10fe0e0d48 Add an inline helper function that masks a GenericValue to a specified
bit width.

llvm-svn: 33325
2007-01-18 02:12:10 +00:00
Reid Spencer 300e7fcb55 Make shl instruction mask its result to the correct bitsize. This is
sufficient to get llvm-test/SingleSource/UnitTests/Integer/general-test.ll
working with lli in interpreter mode.

llvm-svn: 33321
2007-01-18 01:32:46 +00:00
Reid Spencer fab44b682e Two changes:
1. Fix logic for executeGEP. Only 32-bit and 64-bit integer types are
   acceptable as indices.
2. Ensure that all integer cast operations truncate their result to the
   integer size of the operand.

llvm-svn: 33318
2007-01-18 01:25:42 +00:00
Chris Lattner 03c4953cdd rename Type::isIntegral to Type::isInteger, eliminating the old Type::isInteger.
rename Type::getIntegralTypeMask to Type::getIntegerTypeMask.

This makes naming much more consistent.  For example, there are now no longer any
instances of IntegerType that are not considered isInteger! :)

llvm-svn: 33225
2007-01-15 02:27:26 +00:00
Chris Lattner c69c6c4db2 eliminate calls to Type::isInteger, preferring isIntegral instead.
llvm-svn: 33222
2007-01-15 02:03:16 +00:00
Reid Spencer 7a9c62baa6 For PR1064:
Implement the arbitrary bit-width integer feature. The feature allows
integers of any bitwidth (up to 64) to be defined instead of just 1, 8,
16, 32, and 64 bit integers.

This change does several things:
1. Introduces a new Derived Type, IntegerType, to represent the number of
   bits in an integer. The Type classes SubclassData field is used to
   store the number of bits. This allows 2^23 bits in an integer type.
2. Removes the five integer Type::TypeID values for the 1, 8, 16, 32 and
   64-bit integers. These are replaced with just IntegerType which is not
   a primitive any more.
3. Adjust the rest of LLVM to account for this change.

Note that while this incremental change lays the foundation for arbitrary
bit-width integers, LLVM has not yet been converted to actually deal with
them in any significant way. Most optimization passes, for example, will
still only deal with the byte-width integer types.  Future increments
will rectify this situation.

llvm-svn: 33113
2007-01-12 07:05:14 +00:00
Reid Spencer 542964f55b Rename BoolTy as Int1Ty. Patch by Sheng Zhou.
llvm-svn: 33076
2007-01-11 18:21:29 +00:00
Reid Spencer 0d54e78a39 For PR950:
Convert signed integer types to signless ones.

llvm-svn: 32787
2006-12-31 05:51:36 +00:00
Reid Spencer 266e42b312 For PR950:
This patch removes the SetCC instructions and replaces them with the ICmp
and FCmp instructions. The SetCondInst instruction has been removed and
been replaced with ICmpInst and FCmpInst.

llvm-svn: 32751
2006-12-23 06:05:41 +00:00
Chris Lattner e712a5a1d2 elimiante Statistic static ctors
llvm-svn: 32702
2006-12-19 22:56:53 +00:00
Bill Wendling 22e978a736 Removing even more <iostream> includes.
llvm-svn: 32320
2006-12-07 20:04:42 +00:00
Bill Wendling f3baad3ee1 Changed llvm_ostream et all to OStream. llvm_cerr, llvm_cout, llvm_null, are
now cerr, cout, and NullStream resp.

llvm-svn: 32298
2006-12-07 01:30:32 +00:00
Chris Lattner 700b873130 Detemplatize the Statistic class. The only type it is instantiated with
is 'unsigned'.

llvm-svn: 32279
2006-12-06 17:46:33 +00:00
Jeff Cohen cc08c83186 Unbreak VC++ build.
llvm-svn: 32113
2006-12-02 02:22:01 +00:00
Bill Wendling 5834fdb371 Removed #include <iostream> and replaced streams with llvm streams.
llvm-svn: 31949
2006-11-27 23:54:50 +00:00
Reid Spencer 6c38f0bb07 For PR950:
The long awaited CAST patch. This introduces 12 new instructions into LLVM
to replace the cast instruction. Corresponding changes throughout LLVM are
provided. This passes llvm-test, llvm/test, and SPEC CPUINT2000 with the
exception of 175.vpr which fails only on a slight floating point output
difference.

llvm-svn: 31931
2006-11-27 01:05:10 +00:00
Chris Lattner 2775aba51d Simplify IntrinsicLowering and clarify that it is only for use by the
CBE and interpreter.

llvm-svn: 31755
2006-11-15 18:00:10 +00:00
Jim Laskey 61feeb90f9 Remove redundant <cmath>.
llvm-svn: 31561
2006-11-08 19:16:44 +00:00
Reid Spencer fdff938a7e For PR950:
This patch converts the old SHR instruction into two instructions,
AShr (Arithmetic) and LShr (Logical). The Shr instructions now are not
dependent on the sign of their operands.

llvm-svn: 31542
2006-11-08 06:47:33 +00:00