When an environment variable NO_STOP_MESSAGE=1 is set,
assume that STOP statements with a successful code
have QUIET=.TRUE.
Differential Revision: https://reviews.llvm.org/D113701
Add support for reading environment variables directly, via std::getenv.
This needs to allocate a C-style string to pass into std::getenv. If the
memory allocation for that fails, we terminate.
This also changes the interface for EnvVariableLength to receive the
source file and line so we can crash gracefully.
Note that we are now completely ignoring the envp pointer passed into
ProgramStart, since that could go stale if the environment is modified
during execution.
Differential Revision: https://reviews.llvm.org/D111785
Search for the environment variable in the envp string passed to
ProgramStart. This doesn't work if the main program isn't Fortran.
Differential Revision: https://reviews.llvm.org/D111394
The preprocessor definitions __BYTE_ORDER__, __ORDER_BIG_ENDIAN__, and
__ORDER_LITTLE_ENDIAN__ are gcc extensions (also supported by clang),
but msvc (and others) do not define them. As a result __BYTE_ORDER__
and __ORDER_BIG_ENDIAN__ both evaluate to 0 by the prepreprocessor,
and __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__, the first `#if` condition
to 1, hence assuming the wrong byte order for x86(_64).
This patch instead uses CMake's TestBigEndian module to determine
target architecture's endianness at configure-time.
Note this also uses the same mechanism for the runtime. If compiling
flang as a cross-compiler, the runtime for the compile-target must be
built separately (Flang does not support the LLVM_ENABLE_RUNTIMES
mechanism yet).
Fixes llvm.org/PR51597
Reviewed By: ijan1, Leporacanthicus
Differential Revision: https://reviews.llvm.org/D109108
Add SetConvert() to the OPEN statement's runtime API.
Add ByteswapOption() to the main program's runtime API.
Check a $FORT_CONVERT environment variable, too, for
a swapping specifier.
Reviewed By: sscalpone
Differential Revision: https://reviews.llvm.org/D84284
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
Address review comments
Integer output data editing (I,B,O,Z)
Full integer output formatting
Stub out some work in progress
Progress on E output data editing
E, D, EN, and ES output editing done
Fw.d output editing
Real G output editing
G output editing for reals
Make environment a distinct module
CHARACTER and LOGICAL output editing
Minimal decimal representations for E0, F0, G0 editing
Move real output editing code into its own file
Fix/dodge some GCC build problems
Prep work for external I/O statement state
External HELLO, WORLD
Fix build problem with GCC
Add virtual destructors where needed
Add new test
Original-commit: flang-compiler/f18@c3f1774f8e
Reviewed-on: https://github.com/flang-compiler/f18/pull/950
Peter Klausler