2021-10-01 14:58:52 +08:00
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#===-- runtime/CMakeLists.txt ----------------------------------------------===#
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#
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# Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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# See https://llvm.org/LICENSE.txt for license information.
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# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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#
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#===------------------------------------------------------------------------===#
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2018-05-17 01:22:33 +08:00
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2020-03-13 04:28:35 +08:00
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include(CheckCXXSymbolExists)
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include(CheckCXXSourceCompiles)
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check_cxx_symbol_exists(strerror string.h HAVE_STRERROR)
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check_cxx_symbol_exists(strerror_r string.h HAVE_STRERROR_R)
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# Can't use symbol exists here as the function is overloaded in C++
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check_cxx_source_compiles(
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"#include <string.h>
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int main() {
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char buf[4096];
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return strerror_s(buf, 4096, 0);
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}
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"
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HAVE_DECL_STRERROR_S)
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if (NOT (HAVE_STRERROR OR HAVE_STRERROR_R OR HAVE_DECL_STRERROR_S))
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message(FATAL_ERROR "None of strerror, strerror_r, strerror_s found.")
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endif()
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configure_file(config.h.cmake config.h)
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2020-06-09 03:13:58 +08:00
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# include_directories is used here instead of target_include_directories
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# because add_flang_library creates multiple objects (STATIC/SHARED, OBJECT)
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# with different names
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include_directories(AFTER ${CMAKE_CURRENT_BINARY_DIR})
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2020-03-13 04:28:35 +08:00
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[flang][driver] Add support for generating executables
This patch adds 2 missing items required for `flang-new` to be able to
generate executables:
1. The Fortran_main runtime library, which implements the main entry
point into Fortran's `PROGRAM` in Flang,
2. Extra linker flags to include Fortran runtime libraries (e.g.
Fortran_main).
Fortran_main is the bridge between object files generated by Flang and
the C runtime that takes care of program set-up at system-level. For
every Fortran `PROGRAM`, Flang generates the `_QQmain` function.
Fortran_main implements the C `main` function that simply calls
`_QQmain`.
Additionally, "<driver-path>/../lib" directory is added to the list of
search directories for libraries. This is where the required runtime
libraries are currently located. Note that this the case for the build
directory. We haven't considered installation directories/targets yet.
With this change, you can generate an executable that will print `hello,
world!` as follows:
```bash
$ cat hello.f95
PROGRAM HELLO
write(*, *) "hello, world!"
END PROGRAM HELLO
$ flang-new -flang-experimental-exec hello.f95
./a.out
hello, world!
```
NOTE 1: Fortran_main has to be a static library at all times. It invokes
`_QQmain`, which is the main entry point generated by Flang for the
given input file (you can check this with `flang-new -S hello.f95 -o - |
grep "Qmain"`). This means that Fortran_main has an unresolved
dependency at build time. The linker will allow this for a static
library. However, if Fortran_main was a shared object, then the linker
will produce an error: `undefined symbol: `_QQmain`.
NOTE 2: When Fortran runtime libraries are generated as shared libraries
(excluding Fortran_main, which is always static), you will need to
tell the dynamic linker (by e.g. tweaking LD_LIBRARY_PATH) where to look
for them when invoking the executables. For example:
```bash
LD_LIBRARY_PATH=$LD_LIBRARY_PATH:<flang-build-dir>/lib/ ./a.out
```
NOTE 3: This feature is considered experimental and currently guarded
with a flag: `-flang-experimental-exec`.
Differential Revision: https://reviews.llvm.org/D122008
[1] https://github.com/flang-compiler/f18-llvm-project
CREDITS: Fortran_main was originally written by Eric Schweitz, Jean
Perier, Peter Klausler and Steve Scalpone in the fir-dev` branch in [1].
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: Peter Klausler <pklausler@nvidia.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Steve Scalpone <sscalpone@nvidia.com
2022-03-18 00:24:54 +08:00
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add_subdirectory(FortranMain)
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2021-10-01 14:58:52 +08:00
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add_flang_library(FortranRuntime
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2020-01-28 10:18:45 +08:00
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ISO_Fortran_binding.cpp
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2020-03-31 07:37:30 +08:00
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allocatable.cpp
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2021-07-30 03:02:45 +08:00
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assign.cpp
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2020-01-24 08:59:27 +08:00
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buffer.cpp
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2021-08-25 15:51:48 +08:00
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command.cpp
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[flang] Implement reductions in the runtime
Add runtime APIs, implementations, and tests for ALL, ANY, COUNT,
MAXLOC, MAXVAL, MINLOC, MINVAL, PRODUCT, and SUM reduction
transformantional intrinsic functions for all relevant argument
and result types and kinds, both without DIM= arguments
(total reductions) and with (partial reductions).
Complex-valued reductions have their APIs in C so that
C's _Complex types can be used for their results.
Some infrastructure work was also necessary or noticed:
* Usage of "long double" in the compiler was cleaned up a
bit, and host dependences on x86 / MSVC have been isolated
in a new Common/long-double header.
* Character comparison has been exposed via an extern template
so that reductions could use it.
* Mappings from Fortran type category/kind to host C++ types
and vice versa have been isolated into runtime/cpp-type.h and
then used throughout the runtime as appropriate.
* The portable 128-bit integer package in Common/uint128.h
was generalized to support signed comparisons.
* Bugs in descriptor indexing code were fixed.
Differential Revision: https://reviews.llvm.org/D99666
2021-04-01 00:14:08 +08:00
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complex-reduction.c
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2021-05-21 01:37:03 +08:00
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copy.cpp
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2020-03-31 07:37:30 +08:00
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character.cpp
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2020-02-05 08:55:45 +08:00
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connection.cpp
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2020-12-08 06:46:24 +08:00
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derived.cpp
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2021-07-20 02:53:20 +08:00
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derived-api.cpp
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2020-01-28 10:18:45 +08:00
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descriptor.cpp
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2021-06-26 01:40:08 +08:00
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descriptor-io.cpp
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2021-05-13 03:07:51 +08:00
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dot-product.cpp
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2020-02-14 06:41:56 +08:00
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edit-input.cpp
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edit-output.cpp
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2020-01-24 08:59:27 +08:00
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environment.cpp
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2021-12-08 06:38:17 +08:00
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extensions.cpp
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2021-04-23 05:23:45 +08:00
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extrema.cpp
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2020-01-28 10:18:45 +08:00
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file.cpp
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2021-04-23 05:23:45 +08:00
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findloc.cpp
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2020-01-28 10:18:45 +08:00
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format.cpp
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2022-02-10 03:17:18 +08:00
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inquiry.cpp
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2020-02-05 08:55:45 +08:00
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internal-unit.cpp
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2020-02-14 06:41:56 +08:00
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iostat.cpp
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2020-01-28 10:18:45 +08:00
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io-api.cpp
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io-error.cpp
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io-stmt.cpp
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main.cpp
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2021-05-18 05:06:44 +08:00
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matmul.cpp
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2020-01-28 10:18:45 +08:00
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memory.cpp
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2021-04-03 00:30:31 +08:00
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misc-intrinsic.cpp
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2021-05-06 02:37:49 +08:00
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namelist.cpp
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[flang] Implement numeric intrinsic functions in runtime
Adds APIs, implementations, and unit tests for AINT, ANINT,
CEILING, EXPONENT, FLOOR, FRACTION, MOD, MODULO, NEAREST, NINT,
RRSPACING, SCALE, SET_EXPONENT, & SPACING.
Differential Revision: https://reviews.llvm.org/D99764
2021-04-02 03:59:59 +08:00
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numeric.cpp
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2021-12-08 04:19:34 +08:00
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ragged.cpp
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2021-04-08 04:14:14 +08:00
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random.cpp
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[flang] Implement reductions in the runtime
Add runtime APIs, implementations, and tests for ALL, ANY, COUNT,
MAXLOC, MAXVAL, MINLOC, MINVAL, PRODUCT, and SUM reduction
transformantional intrinsic functions for all relevant argument
and result types and kinds, both without DIM= arguments
(total reductions) and with (partial reductions).
Complex-valued reductions have their APIs in C so that
C's _Complex types can be used for their results.
Some infrastructure work was also necessary or noticed:
* Usage of "long double" in the compiler was cleaned up a
bit, and host dependences on x86 / MSVC have been isolated
in a new Common/long-double header.
* Character comparison has been exposed via an extern template
so that reductions could use it.
* Mappings from Fortran type category/kind to host C++ types
and vice versa have been isolated into runtime/cpp-type.h and
then used throughout the runtime as appropriate.
* The portable 128-bit integer package in Common/uint128.h
was generalized to support signed comparisons.
* Bugs in descriptor indexing code were fixed.
Differential Revision: https://reviews.llvm.org/D99666
2021-04-01 00:14:08 +08:00
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reduction.cpp
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2021-07-17 01:42:17 +08:00
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pointer.cpp
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2021-04-23 05:23:45 +08:00
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product.cpp
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2020-11-11 07:13:02 +08:00
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stat.cpp
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2020-01-28 10:18:45 +08:00
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stop.cpp
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2021-04-23 05:23:45 +08:00
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sum.cpp
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2021-11-27 03:39:31 +08:00
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support.cpp
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2020-01-28 10:18:45 +08:00
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terminator.cpp
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2021-06-09 16:19:43 +08:00
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time-intrinsic.cpp
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2020-01-28 10:18:45 +08:00
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tools.cpp
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transformational.cpp
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type-code.cpp
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2021-06-18 04:13:19 +08:00
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type-info.cpp
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2020-01-24 08:59:27 +08:00
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unit.cpp
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2020-02-14 06:41:56 +08:00
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unit-map.cpp
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2022-03-17 03:32:03 +08:00
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utf.cpp
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2020-03-13 04:28:35 +08:00
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2020-04-16 20:34:17 +08:00
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LINK_LIBS
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2020-01-17 05:51:25 +08:00
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FortranDecimal
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2018-08-03 02:45:11 +08:00
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)
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