Commit Graph

123 Commits

Author SHA1 Message Date
Dale Johannesen
a471c2ecda Next PPC long double bits. First cut at constants.
No compile-time support for constant operations yet,
just format transformations.  Make readers and
writers work.  Split constants into 2 doubles in
Legalize.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42865 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-11 18:07:22 +00:00
Dale Johannesen
9d5f456077 Revise previous patch per review comments.
Next round of x87 long double stuff.
Getting close now, basically works.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41875 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-12 03:30:33 +00:00
Dale Johannesen
3f6eb7419d Add APInt interfaces to APFloat (allows directly
access to bits).  Use them in place of float and
double interfaces where appropriate.
First bits of x86 long double constants handling 
(untested, probably does not work).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41858 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-11 18:32:33 +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
Dale Johannesen
320fc8a39e Long double, part 1 of N. Support in IR.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40774 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-03 01:03:46 +00:00
Reid Spencer
6794e616c7 Don't include newlines in the whitespace before newline (WSNL) rule.
Fix the comment for WSNL to describe its actual function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40612 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-31 03:55:43 +00:00
Reid Spencer
1d3d230861 For PR1553:
Make the AsmParser auto-upgrade the old zext and sext
keywords for parameter attributes and handle the 
end-of-line ambiguity.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40610 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-31 02:57:37 +00:00
Duncan Sands
36397f5034 Support for trampolines, except for X86 codegen which is
still under discussion.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40549 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-27 12:58:54 +00:00
Reid Spencer
9445e9aaa0 For PR1553:
Change the keywords for the zext and sext parameter attributes to be 
zeroext and signext so they don't conflict with the keywords for the
instructions of the same name. This gets around the ambiguity.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40069 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-19 23:13:04 +00:00
Rafael Espindola
1aa7efbd2c Add the byval attribute
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37940 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-06 10:57:03 +00:00
Zhou Sheng
febca3499e Commit first round work of PR1373. "noalias" is now fully supported in
VMCore, BitCode, and Assembly. Documentation and test case paramattrs.ll
updated also.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37432 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-05 05:28:26 +00:00
Reid Spencer
8ecdbf2d5f Don't allow the UnEscape code to read or write beyond the end of yytext.
Make sure we convert \\ into \.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37293 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-22 19:07:45 +00:00
Reid Spencer
6ecdcc1c03 Implement full unescaping of escaped hex characters in all quoted identifiers
and strings.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37291 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-22 18:52:21 +00:00
Chris Lattner
d3bd070540 update comment
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37282 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-22 06:56:32 +00:00
Chris Lattner
86fd6304ac simplify code
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37280 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-22 06:47:11 +00:00
Reid Spencer
aa7c2f8c03 Make the %"..." syntax legal for local name. This just makes it symmetric
with global names which can already be @"..."


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37257 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-19 07:21:26 +00:00
Anton Korobeynikov
6f9896fcc8 Implement protected visibility. This partly implements PR1363. Linker
should be taught to deal with protected symbols.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36565 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-29 18:35:00 +00:00
Anton Korobeynikov
8b0a8c84da Implement aliases. This fixes PR1017 and it's dependent bugs. CFE part
will follow.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36435 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-25 14:27:10 +00:00
Lauro Ramos Venancio
c763552299 Implement the "thread_local" keyword.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35950 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-12 18:32:50 +00:00
Reid Spencer
744d036318 Drop the implementation keyword.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35794 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-09 01:55:42 +00:00
Reid Spencer
a5005c077b Give users a grace period on the implementation keyword. This *will* get
removed in a few days.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35472 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-29 18:49:28 +00:00
Reid Spencer
66a82155b4 Replace the "implementation" keyword with "checkpoint". This more accurately
describes its function as check against unresolved types and definitions.
This is handy for forcing error messages in assembly test cases or otherwise
ensuring that everything is resolved at that point in the assembly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35410 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-28 02:36:42 +00:00
Reid Spencer
a39dfd39e4 Add support for the noreturn and nounwind function attributes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35258 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-22 02:13:23 +00:00
Reid Spencer
87707b90b1 For PR1245:
Account for the sign bit when computing the number of bits required for
a negative integer literal constant.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35046 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-09 19:26:52 +00:00
Reid Spencer
c34ebfbcfd Implement arbitrary integer constants through the use of APInt values.
Positive, negative, and hexadecimal integer constants will now return an
APInt for values having > 64 bits of precision.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34715 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-28 02:24:27 +00:00
Reid Spencer
832254e1c2 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33776 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-02 02:16:23 +00:00
Anton Korobeynikov
b10308e440 Propagate changes from my local tree. This patch includes:
1. New parameter attribute called 'inreg'. It has meaning "place this
parameter in registers, if possible". This is some generalization of
gcc's regparm(n) attribute. It's currently used only in X86-32 backend.
2. Completely rewritten CC handling/lowering code inside X86 backend.
Merged stdcall + c CCs and fastcall + fast CC.
3. Dropped CSRET CC. We cannot add struct return variant for each
target-specific CC (e.g. stdcall + csretcc and so on).
4. Instead of CSRET CC introduced 'sret' parameter attribute. Setting in
on first attribute has meaning 'This is hidden pointer to structure
return. Handle it gently'.
5. Fixed small bug in llvm-extract + add new feature to
FunctionExtraction pass, which relinks all internal-linkaged callees
from deleted function to external linkage. This will allow further
linking everything together.

NOTEs: 1. Documentation will be updated soon.
       2. llvm-upgrade should be improved to translate csret => sret.
          Before this, there will be some unexpected test fails.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33597 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-28 13:31:35 +00:00
Reid Spencer
b2d1786090 For PR645:
Implement separation of local and global symbols. Local symbols and types
now use % prefix. Global variables and functions now use @ prefix.

For PR761:
Replace:
  target endian =
  target pointersize =
With:
  target datalayout =


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33524 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-26 08:04:51 +00:00
Reid Spencer
8088e9dfb4 Bye bye bool. AsmWriter doesn't generate it any more so AsmParser shouldn't
read it any more. This is consistent with the new IR as well.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33181 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-13 05:00:20 +00:00
Anton Korobeynikov
7f70559bc4 * PIC codegen for X86/Linux has been implemented
* PIC-aware internal structures in X86 Codegen have been refactored
* Visibility (default/weak) has been added
* Docs fixes (external weak linkage, visibility, formatting)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33136 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-12 19:20:47 +00:00
Reid Spencer
c25a9b9102 Integer type names need 1 or more digits, not zero or more.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33116 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-12 07:27:59 +00:00
Reid Spencer
a54b7cbd45 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33113 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-12 07:05:14 +00:00
Reid Spencer
4fe16d607d Rename BoolTy as Int1Ty. Patch by Sheng Zhou.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33076 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-11 18:21:29 +00:00
Reid Spencer
e1553cc956 For PR950:
Major reorganization. This patch introduces the signedness changes for
the new integer types (i8, i16, i32, i64) which replace the old signed
versions (ubyte, sbyte, ushort, short, etc). This patch also implements
the function type parameter attributes feature. Together these conspired
to introduce new reduce/reduce errors into the grammar. Consequently, it
was necessary to introduce a new keyword into the grammar in order to
disambiguate. Without this, yacc would make incorrect shift/reduce and
reduce/reduce decisions and fail to parse the intended assembly.

Changes in assembly:

1. The "implementation" keyword is superfluous but still supported. You
   can use it as a sentry which will ensure there are no remaining up
   reference types. However, this is optional as those checks are also
   performed elsewhere.

2. Parameter attributes are now implemented using an at sign to
   indicate the attribute. The attributes are placed after the type
   in a function declaration or after the argument value in a function
   call. For example:
      i8 @sext %myfunc(i16 @zext)
      call i8 @sext %myfunc(i16 @zext %someVal)
   The facility is available for supporting additional attributes and
   they can be combined using the @(attr1,attr2,attr3) syntax. Right
   now  the only two supported are @sext and @zext

3. Functions must now be defined with the "define" keyword which is
   analagous to the "declare" keyword for function declarations. The
   introduction of this keyword disambiguates situations where a
   named result type is confused with a new type or gvar definition.
   For example:
      %MyType = type i16
      %MyType %func(%MyType) { ... }
   With the introduction of optional parameter attributes between
   the function name and the function result type, yacc will pick
   the wrong rule to reduce unless it is disambiguated with "define"
   before the function definition, as in:
      define %MyType @zext %func(%MyType %someArg) { ... }


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32781 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-31 05:40:12 +00:00
Reid Spencer
b951bc0283 For PR950:
Remove all grammar conflicts from assembly parsing.  This change involves:
1. Making the "type" keyword not a primitive type (removes several
   reduce/reduce conflicts)
2. Being more specific about which linkage types are allowed for functions
   and global variables. In particular "appending" can no longer be
   specified for a function. A differentiation was made between the various
   internal and external linkage types.
3. Introduced the "define" keyword which is now required when defining a
   function. This disambiguates several cases where a named function return
   type could get confused with the definition of a new type. Using the
   keyword eliminates all shift/reduce conflicts and the remaining
   reduce/reduce conflicts.

These changes are necessary to implement the function parameter attributes
that will be introduced soon. Adding the function parameter attributes in
the presence of the shift/reduce and reduce/reduce conflicts led to severe
ambiguities that caused the parser to report syntax errors that needed to
be resolved. This patch resolves them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32770 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-29 20:29:48 +00:00
Reid Spencer
e4d87aa2de 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32751 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-23 06:05:41 +00:00
Reid Spencer
9f746f415e Shorten the FCmp and ICmp mnemonics to 3 letters. Make the parser
disambiguate them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32151 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-03 06:58:07 +00:00
Reid Spencer
08de34b229 Remove backwards compatibility goop. Now implemented in llvm-upgrade.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32144 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-03 05:45:44 +00:00
Reid Spencer
b78b908d4a Implement signedness caching for values, value lists, constants and
constant lists. This is just an internal change to the parser in
preparation for some backwards compatibility code that is to follow.
This will allow things like "uint 4000000000" to retain the unsignedness
of the integer constant as the value moves through the parser. In the
future, all integer types will be signless but parsing "uint" and friends
will be retained for backwards compatibility.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31964 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-28 07:28:14 +00:00
Reid Spencer
3da59db637 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31931 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-27 01:05:10 +00:00
Reid Spencer
36699cabc5 For PR950:
Retain the signedness of the old integer types in a new TypeInfo structure
so that it can be used in the grammar to implement auto-upgrade of things
that depended on signedness of types. This doesn't implement any new
functionality in the AsmParser, its just plumbing for future changes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31866 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-19 23:07:00 +00:00
Reid Spencer
3822ff5c71 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31542 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-08 06:47:33 +00:00
Reid Spencer
0a783f783c For PR950:
Replace the REM instruction with UREM, SREM and FREM.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31369 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-02 01:53:59 +00:00
Reid Spencer
1628cec4d7 For PR950:
Make necessary changes to support DIV -> [SUF]Div. This changes llvm to
have three division instructions: signed, unsigned, floating point. The
bytecode and assembler are bacwards compatible, however.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31195 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-26 06:15:43 +00:00
Chris Lattner
10b271152a change keyword to datalayout
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31108 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-22 06:07:41 +00:00
Owen Anderson
cf7ff2b4c8 Add support for the new "target data" information in .ll files. This provides
a better encoding of the targets data layout, rather than trying to guess it
from the endianness and pointersize like before.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31030 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-18 02:21:12 +00:00
Anton Korobeynikov
bcb9770efe Added some eye-candy for Subtarget type checking
Added X86 StdCall & FastCall calling conventions. Codegen will follow.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30446 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-17 20:25:45 +00:00
Anton Korobeynikov
b74ed07bfd Adding dllimport, dllexport and external weak linkage types.
DLL* linkages got full (I hope) codegeneration support in C & both x86
assembler backends.
External weak linkage added for future use, we don't provide any
codegeneration, etc. support for it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30374 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-14 18:23:27 +00:00
Reid Spencer
61c83e023f For PR797:
Rid the Assembly Parser of exceptions. This is a really gross hack but it
will do until the Assembly Parser is re-written as a recursive descent.
The basic premise is that wherever the old "ThrowException" function was
called (new name: GenerateError) we set a flag (TriggerError). Every
production checks that flag and calls YYERROR if it is set. Additionally,
each call to ThrowException in the grammar is replaced with GEN_ERROR
which calls GenerateError and then YYERROR immediately. This prevents
the remaining production from continuing after an error condition.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29763 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-18 08:43:06 +00:00
Chris Lattner
515906d106 Add support for parsing csret
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28406 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-19 21:28:34 +00:00