Commit Graph

35 Commits

Author SHA1 Message Date
peter klausler aa39ddd0a3 [flang] Implement IEEE_SUPPORT_xxx inquiry functions
Implement IEEE_SUPPORT_DATATYPE() and other inquiry intrinisic
functions from the intrinsic module IEEE_ARITHMETIC, folding all of
their results to .TRUE.

Differential Revision: https://reviews.llvm.org/D95830
2021-02-02 11:38:19 -08:00
peter klausler 03f1c9fa85 [flang] Fix errors in ISO_FORTRAN_ENV module for REAL128
Some parameters of 128-bit IEEE floating-point numbers were
incorrect, leading to a failure to define REAL128 to 16.

Differential Revision: https://reviews.llvm.org/D95387
2021-01-25 13:41:32 -08:00
peter klausler a75840a09c [flang] Better C_LOC and C_ASSOCIATED in flang/module
The place-holding implementation of C_LOC just didn't work
when used with our more complete semantic checking, specifically
in the case of a polymorphic argument; convert it to an external
function with an implicit interface.  C_ASSOCIATED needs to be
a generic interface with specific implementations for C_PTR and
C_FUNPTR.

Differential Revision: https://reviews.llvm.org/D94714
2021-01-21 09:41:05 -08:00
peter klausler 6aa3591e98 [flang] Implement STORAGE_SIZE(), SIZEOF(), C_SIZEOF()
STORAGE_SIZE() is a standard inquiry intrinsic (size in bits
of an array element of the same type as the argument); SIZEOF()
is a common extension that returns the size in bytes of its
argument; C_SIZEOF() is a renaming of SIZEOF() in module ISO_C_BINDING.

STORAGE_SIZE() and SIZEOF() are implemented via rewrites to
expressions; these expressions will be constant when the necessary
type parameters and bounds are also constant.

Code to calculate the sizes of types (with and without alignment)
was isolated into Evaluate/type.* and /characteristics.*.
Code in Semantics/compute-offsets.* to calculate sizes and alignments
of derived types' scopes was exposed so that it can be called at type
instantiation time (earlier than before) so that these inquiry intrinsics
could be called from specification expressions.

Differential Revision: https://reviews.llvm.org/D93322
2020-12-15 17:26:20 -08:00
peter klausler 4fede8bc8a [flang] Implement derived type description table encoding
Define Fortran derived types that describe the characteristics
of derived types, and instantiations of parameterized derived
types, that are of relevance to the runtime language support
library.  Define a suite of corresponding C++ structure types
for the runtime library to use to interpret instances of the
descriptions.

Create instances of these description types in Semantics as
static initializers for compiler-created objects in the scopes
that define or instantiate user derived types.

Delete obsolete code from earlier attempts to package runtime
type information.

Differential Revision: https://reviews.llvm.org/D92802
2020-12-08 10:26:58 -08:00
Tim Keith dd90408262 [flang][NFC] Get formatting in sync with latest clang-format
flang/module only contains Fortran files and one is a .h so disable
formatting on that directory.

Differential Revision: https://reviews.llvm.org/D82989
2020-07-01 16:51:46 -07:00
peter klausler 771c21c19f [flang] Repair C_LOC
Original-commit: flang-compiler/f18@dc1c95277d
Reviewed-on: https://github.com/flang-compiler/f18/pull/1061
Tree-same-pre-rewrite: false
2020-03-11 11:00:36 -07:00
Pete Steinfeld 4d0c8522e3 [flang] Semantic checks for C709, C710, and C711
C709 An assumed-type entity shall be a dummy data object that does not
have the ALLOCATABLE, CODIMENSION, INTENT (OUT), POINTER, or VALUE
attribute and is not an explicit-shape array.

C710 An assumed-type variable name shall not appear in a designator or
expression except as an actual argument corresponding to a dummy
argument that is assumed-type, or as the first argument to the intrinsic
function IS_CONTIGUOUS, LBOUND, PRESENT, RANK, SHAPE, SIZE, or UBOUND,
or the function C_LOC from the intrinsic module ISO_C_BINDING.

C711 An assumed-type actual argument that corresponds to an assumed-rank
dummy argument shall be assumed-shape or assumed-rank.

For C709 I added code to check-declarations.cpp.  For this, I had to
distinguish between polymorphic types and assumed-type types to
eliminate multiple messages on the same line.

C710 was already checked, but I added a notation in the source.

For C711 I added code to check-call.cpp and the test call15.f90.

Original-commit: flang-compiler/f18@4a703f2b5a
Reviewed-on: https://github.com/flang-compiler/f18/pull/985
2020-02-19 11:58:29 -08:00
peter klausler 95696d563b [flang] Progress on Fortran I/O runtime
Use internal units for internal I/O state

Replace use of virtual functions

reference_wrapper

Internal formatted output to array descriptor

Delete dead code

Begin list-directed internal output

Refactorings and renamings for clarity

List-directed external I/O (character)

COMPLEX list-directed output

Control list items

First cut at unformatted I/O

More OPEN statement work; rename class to ExternalFileUnit

Complete OPEN (exc. for POSITION=), add CLOSE()

OPEN(POSITION=)

Flush buffers on crash and for terminal output; clean up

Documentation

Fix backquote in documentation

Fix typo in comment

Begin implementation of input

Refactor binary floating-point properties to a new header, simplify numeric output editing

Dodge spurious GCC 7.2 build warning

Address review comments

Original-commit: flang-compiler/f18@9c4bba11cf
Reviewed-on: https://github.com/flang-compiler/f18/pull/982
2020-02-13 10:31:26 -08:00
Gary Klimowicz cea1040d51 [flang] Minor format change to LLVM license lines
Replace comment lines containing all dashes with the
proper ===-----....----=== markers.

Original-commit: flang-compiler/f18@a8936b0d41
Reviewed-on: https://github.com/flang-compiler/f18/pull/922
2020-01-10 12:12:03 -08:00
Tim Keith 96ce00bba2 [flang] Add .mod file dependencies
Make compilation of other predefined module files depend on
__fortran_builtins.mod. Currently only iso_c_binding.f90 and
iso_fortran_env.f90 depend on it but others could in the future.

Create the .f18.mod files by copying from the .mod files so that
we don't have to worry about dependencies for those.

Original-commit: flang-compiler/f18@8209ad3d32
Reviewed-on: https://github.com/flang-compiler/f18/pull/899
2019-12-31 14:08:12 -08:00
peter klausler ec833a6bb7 [flang] Patch build problem
Original-commit: flang-compiler/f18@a668512100
Reviewed-on: https://github.com/flang-compiler/f18/pull/898
2019-12-31 09:19:08 -08:00
peter klausler 663db2741d [flang] C_F_POINTER
Emit INTRINSIC statements in module files

Argument checking utility

Complete error checking

Original-commit: flang-compiler/f18@9c6a88f048
Reviewed-on: https://github.com/flang-compiler/f18/pull/896
2019-12-31 08:34:53 -08:00
Gary Klimowicz 9e7548ab31 [flang] Flang relicensing changes for LLVM Apache 2.0 license
This changes the license information in many of the flang source files.
- Renamed LICENSE to LICENSE.txt.
- NVIDIA Copyright lines have been removed.
- Initial lines for files follow the LLVM coding convention (file name on the first line; Emacs mode information on the first line).
- License references have been replaced with the abridged LLVM text.
- License information was removed from the test files.
- No file header was placed on test files (these weren't in most LLVM test files).
- License information was added to documentation files where it was missing.

We did not add brief file summaries to the initial line.

See http://llvm.org/docs/DeveloperPolicy.html#new-llvm-project-license-framework
for a description of the new license.

See http://llvm.org/docs/CodingStandards.html#file-headers
for a description of the new LLVM standard file header.

Original-commit: flang-compiler/f18@add6cde724
Reviewed-on: https://github.com/flang-compiler/f18/pull/887
2019-12-23 10:26:16 -08:00
Kiran Chandramohan 69d01593b4 [flang] Mark ieee_get_flag and ieee_get_halting_mode as elemental
Original-commit: flang-compiler/f18@d6237fa311
Reviewed-on: https://github.com/flang-compiler/f18/pull/886
2019-12-20 20:28:45 +00:00
peter klausler e46cd9ee18 [flang] Fold MERGE, use it in ISO_FORTRAN_ENV
Reduce use of intrinsic type KIND codes in ISO_FORTRAN_ENV

Use COUNT([x]) rather than MERGE(1,0,x)

Fix problems in array constructor expression analysis

Original-commit: flang-compiler/f18@79018f7126
Reviewed-on: https://github.com/flang-compiler/f18/pull/836
2019-11-22 14:16:48 -08:00
peter klausler fc94aa6d32 [flang] Define runtime I/O library interface to be used by generated code.
Original-commit: flang-compiler/f18@82cb9b0c87
Reviewed-on: https://github.com/flang-compiler/f18/pull/802
2019-11-19 10:11:23 -08:00
peter klausler f090eb878e [flang] Better shape analysis for CSHIFT, EOSHIFT, SPREAD
Original-commit: flang-compiler/f18@eb43df85a6
Reviewed-on: https://github.com/flang-compiler/f18/pull/782
Tree-same-pre-rewrite: false
2019-10-16 10:35:34 -07:00
peter klausler b32a435b0b [flang] Update preprocessing document, commentary
Extend documentation on preprocessing

IsSimplyContiguous

basic skeleton

Apply suggested improvements to mod-file.cc

Checks for new call13.f90 (15.4.2.2 explicit interfaces)

Implement checking for procedures that can be called via an implicit interface

Argument checking, test fixing

Better argument checking

Better derived type compatibility checking

Treat externals as if implicitly interfaced

Extend IEEE_EXCEPTIONS module so tests still pass with argument checking

SAME_TYPE_AS and EXTENDS_TYPE_OF intrinsic inquiry functions

Define interfaces for most intrinsic subroutines

Better PASS arguments

More with PASS() argument

Prep for review

address comments

fix comment

Remove formatted expression from specification expression error message per review

more review comments

Original-commit: flang-compiler/f18@3cca775da9
Reviewed-on: https://github.com/flang-compiler/f18/pull/776
2019-10-07 11:01:46 -07:00
Pete Steinfeld f8cfc7cdf9 [flang] Fixed the declarations of IEEE_SUPPORT_FLAG and IEEE_SUPPORT_HALTING to
be functions rather than subroutines.  Note that Table 17.3 in the
standard summarizes the contents of IEEE_EXCEPTIONS with the details
specified in section 17.11.

Original-commit: flang-compiler/f18@fca58d479d
Reviewed-on: https://github.com/flang-compiler/f18/pull/730
2019-09-10 12:43:16 -07:00
Steve Scalpone 02a9cdb3fd [flang] Define iso_fortran_env error_unit.
Provisionally use a value of 0 to match PGI.

Original-commit: flang-compiler/f18@ec7f0a0968
Reviewed-on: https://github.com/flang-compiler/f18/pull/722
2019-09-09 12:57:10 -07:00
peter klausler 142fed87c1 [flang] Clean up omp_lib.h
Original-commit: flang-compiler/f18@7119cd0534
Reviewed-on: https://github.com/flang-compiler/f18/pull/690
2019-08-27 11:17:43 -07:00
peter klausler 9d5d73aa77 [flang] Reformat omp_lib.h
Original-commit: flang-compiler/f18@892d91b161
Reviewed-on: https://github.com/flang-compiler/f18/pull/690
Tree-same-pre-rewrite: false
2019-08-27 09:28:30 -07:00
Steve Scalpone 5c62bfb4f8 [flang] Implement int_ptr_kind.
Split omp_lib.F90 into two files: a Fortran file used to
create the omp_lib module and a .h file that can be used
directly, which apparently some codes do. Because of the
split, and wanting to avoid forcing use isc_c_binding,
use int_ptr_kind()  instead of c_intptr_t.

Original-commit: flang-compiler/f18@ce6a9fb173
Reviewed-on: https://github.com/flang-compiler/f18/pull/690
Tree-same-pre-rewrite: false
2019-08-26 14:58:10 -07:00
Steve Scalpone 9b5e691814 [flang] Add the OpenMP module.
Original-commit: flang-compiler/f18@09d8b0d6e1
Reviewed-on: https://github.com/flang-compiler/f18/pull/690
Tree-same-pre-rewrite: false
2019-08-26 09:57:06 -07:00
Steve Scalpone da480fc6ce [flang] Use ACHAR() instead of the nonstandard backslash escape sequences.
Original-commit: flang-compiler/f18@103ed895fe
Reviewed-on: https://github.com/flang-compiler/f18/pull/660
2019-08-14 10:36:29 -07:00
Steve Scalpone 7b17a67190 [flang] Define the named constants for the C characters with
special semantics in the ISO_C_BINDING intrinsic module.

Original-commit: flang-compiler/f18@bee546fdb2
Reviewed-on: https://github.com/flang-compiler/f18/pull/660
Tree-same-pre-rewrite: false
2019-08-13 20:41:43 -07:00
Peter Steinfeld 8768a11d4c [flang] - ieee_exceptions.f90: I added all of the routines listed in table 17.3 of the standard that were not currently specified. I also re-ordered the routines to be in the same order as the standard.
- doconcurrent01.f90: I removed the custom versions of ieee_exceptions and
 iso_fortran_env.  I also fixed a typo in a comment.  Also, the use of the real
 standare interface caused one of the error messages to go away, so I fixed
 that.

Original-commit: flang-compiler/f18@a8b310a968
Reviewed-on: https://github.com/flang-compiler/f18/pull/637
2019-08-09 11:38:49 -07:00
Tim Keith 050a921aaf [flang] Fix errors in tests and predefined modules
There were many places in tests and predefined modules that had
incorrect code that we weren't detecting until now.

Most of the problems were deferred-shape arrays that should have
been implied-shape. For example:
`real, parameter :: a(:) = [1.0, 2.0]`
should have `(*)` rather than `(:)`.

There were also a few places with deferred-shape arrays that were
not allocatable/pointer or explicit-shape ones that were.

Original-commit: flang-compiler/f18@0a959ce1d8
Reviewed-on: https://github.com/flang-compiler/f18/pull/630
2019-08-07 10:51:35 -07:00
peter klausler bdcdf04431 [flang] Use LOC() in iso_c_binding for C_LOC and C_FUNLOC
Original-commit: flang-compiler/f18@da02305d1b
Reviewed-on: https://github.com/flang-compiler/f18/pull/538
Tree-same-pre-rewrite: false
2019-07-01 16:54:53 -07:00
peter klausler b079ed65a3 [flang] Back out bad commit of f18 module files
Original-commit: flang-compiler/f18@230117c437
Reviewed-on: https://github.com/flang-compiler/f18/pull/531
Tree-same-pre-rewrite: false
2019-06-28 09:16:45 -07:00
peter klausler f7c34914de [flang] Add LOGICAL8, &c.
Original-commit: flang-compiler/f18@fd8df8cd8f
Reviewed-on: https://github.com/flang-compiler/f18/pull/531
Tree-same-pre-rewrite: false
2019-06-28 09:16:44 -07:00
peter klausler 33c397308c [flang] Remove unused PRIVATE name
Original-commit: flang-compiler/f18@829b8ca873
Reviewed-on: https://github.com/flang-compiler/f18/pull/531
Tree-same-pre-rewrite: false
2019-06-28 09:16:39 -07:00
peter klausler d8f72a3105 [flang] Placeholder for standard module iso_fortran_env
Original-commit: flang-compiler/f18@386ebb0490
Reviewed-on: https://github.com/flang-compiler/f18/pull/485
Tree-same-pre-rewrite: false
2019-06-06 13:42:33 -07:00
peter klausler 184d801fc4 [flang] Placeholders for some standard modules
Original-commit: flang-compiler/f18@a7182af0d5
Reviewed-on: https://github.com/flang-compiler/f18/pull/477
Tree-same-pre-rewrite: false
2019-06-04 13:37:07 -07:00