Commit Graph

212 Commits

Author SHA1 Message Date
Josh Mottley ddac11aee6 [flang] Upstream partial lowering of COMMAND_ARGUMENT_COUNT intrinsic
This patch adds partial lowering of the "COMMAND_ARGUMENT_COUNT" intrinsic
to the backend runtime hook implemented in patch D109048. Also adds a
"helper" function for retrieving the default integer type from
FIRBuilder, which will be used later when finishing the lowering of
intrinsic.

Differential Revision: https://reviews.llvm.org/D117869
2022-01-31 17:01:26 +00:00
Peter Steinfeld eb933225f4 [flang] Implement a runtime routine to report fatal errors with source position
The title says it all.

I implemented a routine called "Crash" and added a test.

Differential Revision: https://reviews.llvm.org/D118509
2022-01-28 15:46:00 -08:00
Peter Klausler 896a543e72 [flang] Support DECIMAL='COMMA' mode in namelist I/O
DECIMAL='COMMA' mode affects item separators, real editing, and
complex editing.

Differential Revision: https://reviews.llvm.org/D117906
2022-01-22 09:01:36 -08:00
Peter Klausler d1123e3692 [flang] Extension: skip over NAMELIST groups
Implements a near-universal extension in which NAMELIST
input will skip over unrelated namelist groups in the
input stream until the group with the requested name appears.

Differential Revision: https://reviews.llvm.org/D117843
2022-01-20 17:01:29 -08:00
Peter Klausler 922c29ccf1 [flang] Allow explicit '+' in NAMELIST input subscripts
Array subscripts and substring limits in NAMELIST input are
allowed to bear an explicit plus sign.

Differential Revision: https://reviews.llvm.org/D117818
2022-01-20 17:01:02 -08:00
Peter Klausler 0ab170803f [flang] Support substring references in NAMELIST input
Implements substring references into potentially partial CHARACTER
scalars and array elements in NAMELIST input.

Differential Revision: https://reviews.llvm.org/D117576
2022-01-18 11:24:17 -08:00
Peter Klausler b77fd01a8f [flang] Don't blank-fill remaining lines in internal output
Internal writes to character arrays should not blank-fill
records (elements) past the last one that was written to.

Differential Revision: https://reviews.llvm.org/D117342
2022-01-14 15:14:48 -08:00
Peter Klausler ac4202fe9d [flang] Signal runtime error on WRITE after ENDFILE
After an ENDFILE statement, a WRITE is an error without
a prior BACKSPACE.  Also fix the return value for the case
of formatted integer input with no input digits to be false
(exposed by new test).

Differential Revision: https://reviews.llvm.org/D117346
2022-01-14 14:46:00 -08:00
River Riddle 56f62fbf73 [mlir] Finish removing Identifier from the C++ API
There have been a few API pieces remaining to allow for a smooth transition for
downstream users, but these have been up for a few months now. After this only
the C API will have reference to "Identifier", but those will be reworked in a followup.

The main updates are:
* Identifier -> StringAttr
* StringAttr::get requires the context as the first parameter
  - i.e. `Identifier::get("...", ctx)` -> `StringAttr::get(ctx, "...")`

Reviewed By: mehdi_amini

Differential Revision: https://reviews.llvm.org/D116626
2022-01-12 11:58:23 -08:00
Kiran Chandramohan f97731c765 [Flang][Unit Test] Move the declaration of kindMap to the class
kindMap variable is declared in the Setup function but passed as
a reference to the firBuilder class. The firBuilder is declared in
the class and hence its lifetime exceeds that of kindMap. This can
lead to undefined behaviour. Move the kindMap variable into the class
to avoid this.

This is part of the upstreaming effort from the fir-dev branch in [1].
[1] https://github.com/flang-compiler/f18-llvm-project

Reviewed By: awarzynski

Differential Revision: https://reviews.llvm.org/D115631
2021-12-13 16:12:01 +00:00
Jacques Pienaar feeee78afc [mlir] Flip dialects to _Prefixed
Following
https://llvm.discourse.group/t/psa-ods-generated-accessors-will-change-to-have-a-get-prefix-update-you-apis/4476
these have been flipped to both for ~4 weeks, flipping to _Prefixed.

Differential Revision: https://reviews.llvm.org/D115585
2021-12-11 14:21:20 -08:00
Jacques Pienaar 3012f35f87 [flang] Updated FIR dialect to _Both
Change dialect (and remove now redundant accessors) to generate both
form of accessors of being generated. Tried to keep this change
reasonably minimal (this also includes keeping note about not generating
getType accessor to avoid shadowing).

Differential Revision: https://reviews.llvm.org/D115420
2021-12-09 15:05:13 -08:00
Valentin Clement ad3bb7c7da
[flang] Simplify RaggedArrayHeader and make it plain C struct
- Join indirection and rank into a single value `flags`
- Make the struct a plain C struct.

Reviewed By: schweitz

Differential Revision: https://reviews.llvm.org/D115464
2021-12-09 22:28:06 +01:00
Valentin Clement de467afe18
[fir] Add fir ragged array builder
This patch introduces a bunch of builder functions
to create function calls to runtime ragged arrays functions.

This patch is part of the upstreaming effort from fir-dev branch.

Reviewed By: kiranchandramohan

Differential Revision: https://reviews.llvm.org/D114535

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
2021-12-08 17:28:43 +01:00
Valentin Clement 6116ff297f
[flang][runtime] Add ragged array runtime functions
This patch adds the runtime function to allocate and
deallocate ragged arrays.

This patch is part of the upstreaming effort from fir-dev branch.

Reviewed By: klausler

Differential Revision: https://reviews.llvm.org/D114534

Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
2021-12-07 21:22:34 +01:00
Valentin Clement d59a0f58f4
[fir] Add fir character builder
This patch adds the FIR builder to generate the numeric intrinsic
runtime call.

This patch is part of the upstreaming effort from fir-dev branch.

Reviewed By: rovka

Differential Revision: https://reviews.llvm.org/D114900

Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: mleair <leairmark@gmail.com>
2021-12-03 14:58:17 +01:00
Valentin Clement c32421c925
[fir] Add fir derived type runtime builder
This patch adds the builder to generate derived type runtime API calls.

This patch is part of the upstreaming effort from fir-dev branch.

Reviewed By: rovka

Differential Revision: https://reviews.llvm.org/D114472

Co-authored-by: Peter Klausler <pklausler@nvidia.com>
Co-authored-by: Jean Perier <jperier@nvidia.com>
2021-12-03 14:51:59 +01:00
Jean Perier 1c16b0db9d [flang] Return arrays in Transfer runtime with SIZE argument
In TRANSFER runtime the result was an array only if the MOLD was an array.
This is not in line with TRANSFER definition in 16.9.193 that rules that it
must also be an array if MOLD is scalar and SIZE if provided.

Differential Revision: https://reviews.llvm.org/D114943
2021-12-03 08:23:30 +01:00
Valentin Clement 99961b4f1c
[fir] Declare test function inline
Declare functions checkCallOp and checkCallOpFromResultBox inline due to buildbot failure flang-aarch64-latest-clang
2021-12-02 14:18:43 +01:00
Valentin Clement 529d0942da
[fir] Add fir numeric intrinsic runtime call builder
This patch adds the FIR builder to generate the numeric intrinsic
runtime call.

This patch is part of the upstreaming effort from fir-dev branch.

Reviewed By: rovka

Differential Revision: https://reviews.llvm.org/D114477

Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: mleair <leairmark@gmail.com>
2021-12-02 10:22:26 +01:00
Valentin Clement f6ae8e8cc7
[fir] Add fir reduction builder
This patch introduces a bunch of builder functions
to create function calls to runtime reduction functions.

This patch is part of the upstreaming effort from fir-dev branch.

This patch failed previously because a macro was missing.

Reviewed By: awarzynski

Differential Revision: https://reviews.llvm.org/D114460

Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: mleair <leairmark@gmail.com>
2021-12-01 09:01:12 +01:00
Valentin Clement 3cc21ee6b9
Revert "[fir] Add fir reduction builder"
This reverts commit cf3422d3df.

This fails on some buildbots
2021-11-30 17:15:42 +01:00
Valentin Clement cf3422d3df
[fir] Add fir reduction builder
This patch introduces a bunch of builder functions
to create function calls to runtime reduction functions.

This patch is part of the upstreaming effort from fir-dev branch.

Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: mleair <leairmark@gmail.com>

Differential Revision: https://reviews.llvm.org/D114460

Reviewed By: awarzynski
2021-11-30 15:52:30 +01:00
Valentin Clement 47f759309e
[fir] Add array value copy pass
This patch upstream the array value copy pass.

Transform the set of array value primitives to a memory-based array
representation.

The Ops `array_load`, `array_store`, `array_fetch`, and `array_update` are
used to manage abstract aggregate array values. A simple analysis is done
to determine if there are potential dependences between these operations.
If not, these array operations can be lowered to work directly on the memory
representation. If there is a potential conflict, a temporary is created
along with appropriate copy-in/copy-out operations. Here, a more refined
analysis might be deployed, such as using the affine framework.

This pass is required before code gen to the LLVM IR dialect.

This patch is part of the upstreaming effort from fir-dev branch. The
pass is bringing quite a lot of file with it.

Reviewed By: kiranchandramohan, schweitz

Differential Revision: https://reviews.llvm.org/D111337

Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: V Donaldson <vdonaldson@nvidia.com>
2021-11-30 13:51:08 +01:00
Valentin Clement 51e2c8c9bf
[fir] Add assignment runtime API builder
This patch adds the builder that generate assignment runtime API calls.

This patch is part of the upstreaming effort from fir-dev branch.

Reviewed By: rovka, awarzynski

Differential Revision: https://reviews.llvm.org/D114475

Co-authored-by: Jean Perier <jperier@nvidia.com>
2021-11-29 10:23:06 +01:00
Valentin Clement 18452d1f12
[fir] Add fir transformational intrinsic builder
This patch adds the builder to generate transformational
intrinsic runtime API calls.

This patch is part of the upstreaming effort from fir-dev branch.

Reviewed By: rovka

Differential Revision: https://reviews.llvm.org/D114470

Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: mleair <leairmark@gmail.com>
Co-authored-by: Kiran Chandramohan <kiran.chandramohan@arm.com>
Co-authored-by: Peter Steinfeld <psteinfeld@nvidia.com>
2021-11-29 10:09:36 +01:00
Valentin Clement 1b3cd35ade
[fir] Add base for runtime builder unittests
This patch adds the common base shared by builder runtime
unittests. It extracted from D114460 to make it easier to base other patches
on it.

Reviewed By: kiranchandramohan, rovka

Differential Revision: https://reviews.llvm.org/D114557
2021-11-29 10:07:45 +01:00
Peter Klausler d02b318af6 [flang] Remove typo that affected complex namelist input
A recent patch to real/complex formatted input included what must
have been an editing hiccup: "++ ++p" instead of "++p".  This
compiles, and it broke the consumption of the trailing ')' of a
complex value in namelist input by skipping over the character.

Extend existing test to cover this case.

Differential Revision: https://reviews.llvm.org/D114297
2021-11-22 15:06:46 -08:00
Jean Perier 7796d81ae8 [flang] Skip `Fortran STOP:` before message when NO_STOP_MESSAGE is set
In 'STOP bye bye', do not print 'Fortran STOP:` before 'bye bye' when
NO_STOP_MESSAGE environment variable is set at runtime.

Also only exit with code 1 in StopStatementText if this is an ERROR STOP.
This matches other compiler behaviors.

Move STOP related unit tests in their own test file and add new tests to
cover this change.

Differential Revision: https://reviews.llvm.org/D114152
2021-11-18 18:08:06 +01:00
Kiran Chandramohan a1f9bd32c5 [Flang] Add a factory class for creating Complex Ops
Use the factory class in the FIRBuilder.
Add unit tests for the factory class function and the convert function
of the Complex class.

Reviewed By: clementval, rovka

Differential Revision: https://reviews.llvm.org/D114125

Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
2021-11-18 16:55:35 +00:00
V Donaldson ea8cdf322f [flang] Fix a bug in INQUIRE(IOLENGTH=) output
The inquire by output list form of the INQUIRE statement calculates the
number of file storage units that would be required to store the data
of an output list in an unformatted file.  Currently, the result is
incorrectly multiplied by the number of bytes for a data type.  A query
for "INTEGER(KIND=4) A(10)" should be 40, not 160.

Update formatting.
2021-11-16 11:33:15 -08:00
Jean Perier 2e65c8e8db [flang] Allow write after non advancing read in IO runtime
1. To avoid overwriting the part of the record read in the non advancing read,
the furtherPositionInRecord field must be set to the max of the
furtherPositionInRecord and the positionInRecord at the beginning of the
IO write.

2. To allow any further read to succeed after the write, the unit
beganReadingRecord_ must be set to false when resetting the recordLength
during the write, otherwise, recordLength will not be computed in further
read and an assert is hit (at unit.cpp(398)).

The added unit test exercises both of these scenarios.

Differential Revision: https://reviews.llvm.org/D113740
2021-11-16 14:53:39 +01:00
Peter Klausler da25f968a9 [flang] Runtime performance improvements to real formatted input
Profiling a basic internal real input read benchmark shows some
hot spots in the code used to prepare input for decimal-to-binary
conversion, which is of course where the time should be spent.
The library that implements decimal to/from binary conversions has
been optimized, but not the code in the Fortran runtime that calls it,
and there are some obvious light changes worth making here.

Move some member functions from *.cpp files into the class definitions
of Descriptor and IoStatementState to enable inlining and specialization.

Make GetNextInputBytes() the new basic input API within the
runtime, replacing GetCurrentChar() -- which is rewritten in terms of
GetNextInputBytes -- so that input routines can have the
ability to acquire more than one input character at a time
and amortize overhead.

These changes speed up the time to read 1M random reals
using internal I/O from a character array from 1.29s to 0.54s
on my machine, which on par with Intel Fortran and much faster than
GNU Fortran.

Differential Revision: https://reviews.llvm.org/D113697
2021-11-12 11:40:02 -08:00
Peter Klausler d1b09adeeb [flang] Fix rounding edge case in F output editing
When an Fw.d output edit descriptor has a "d" value exactly
equal to the number of zeroes after the decimal point for a value
(e.g., 0.07 with F5.1), the Fw.d output editing code needs to
do the rounding itself to either 0.0 or 0.1 after performing
a conversion without rounding (to avoid 0.04999 rounding up twice).

Differential Revision: https://reviews.llvm.org/D113698
2021-11-12 11:16:25 -08:00
Jean Perier 1fda7baf8a [flang] fix unused variable warning from D113659 2021-11-12 09:34:02 +01:00
Jean Perier 6544d9a4a0 [flang] Fix vector cshift runtime with non zero lower bounds
The source index should not be compared to zero after applying the
shift with the modulo, it must be compared to the lower bound.
Otherwise, the extent is not added in case it should and the computed
source index may be less than the lower bound, causing invalid results.

Differential Revision: https://reviews.llvm.org/D113659
2021-11-12 09:26:08 +01:00
Diana Picus 9df0ba599c [flang] Implement GET_ENVIRONMENT_VARIABLE(VALUE)
Implement the second entry point for GET_ENVIRONMENT_VARIABLE. Reuse
existing bits and pieces wherever possible.

This patch also increases CFI_* error codes in order to avoid conflicts.
GET_ENVIRONMENT_VARIABLE is required to return a status of 1 if an
environment variable does not exist and 2 if environment variables are
not supported. However, if we add status codes for that they will
conflict with CFI_ERROR_BASE_ADDR_NULL and CFI_ERROR_BASE_ADDR_NOT_NULL,
which are also 1 and 2 at the moment. We therefore move all CFI error
codes up (an arbitrary) 10 spots to make room. Hopefully this isn't
a problem, since we weren't matching the CFI error codes that gfortran
uses anyway. It may still be an issue if any other runtime functions
will need to return a status of 1 or 2, but we should probably deal with
that when/if it occurs.

Differential Revision: https://reviews.llvm.org/D112698
2021-11-01 09:19:20 +00:00
Diana Picus 824bf90819 [flang] runtime: Read environment variables directly
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
2021-10-28 07:49:30 +00:00
peter klausler b83242e20e [flang] Support legacy usage of 'A' edit descriptors for integer & real
The 'A' edit descriptor once served as a form of raw I/O of bytes
to/from variables that weren't of type CHARACTER (which itself
didn't exist until F'77).  This usage was especially common for
output of numeric variables that had been initialized with Hollerith.

Differential Revision: https://reviews.llvm.org/D112346
2021-10-22 16:02:33 -07:00
peter klausler b8452dba28 [flang] Support NAMELIST input of short arrays
NAMELIST array input does not need to fully define an array.
If another input item begins after at least one element,
it ends input into the array and the remaining items are
not modified.

The tricky part of supporting this feature is that it's not
always easy to determine whether the next non-blank thing in
the input is a value or the next item's name, esp. in the case
of logical data where T and F can be names.  E.g.,

  &group logicalArray = t f f t
      = 1 /

should read three elements into "logicalArray" and then read
an integer or real variable named "t".

So the I/O runtime has to do some look-ahead to determine whether
the next thing in the input is a name followed by '=', '(', or '%'.
Since the '=' may be on a later record, possibly with intervening
NAMELIST comments, the runtime has to support a general form of
saving and restoring its current position.  The infrastructure
in the I/O runtime already has to support repositioning for
list-directed repetition, even on non-positionable input sources
like terminals and sockets; this patch adds an internal RAII API
to make it easier to save a position and then do arbitrary
look-ahead.

Differential Revision: https://reviews.llvm.org/D112245
2021-10-22 13:38:11 -07:00
Valentin Clement a2e7af7516
[fir] Add utility function to FIRBuilder and MutableBox
This patch is extracted from D111337 to make is smaller.
It introduce utility functions to the FIRBuilder and add the MutableBox
files.

- genShape
- readCharLen
- getExtents

Reviewed By: kiranchandramohan

Differential Revision: https://reviews.llvm.org/D112207

Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
2021-10-22 10:00:34 +02:00
Valentin Clement 0bf230d422
[fir] Remove unused function in CharacterTest 2021-10-22 00:25:59 +02:00
Valentin Clement 2ba572a82a
[fir] Remove createConcatenate test temporarily
This test is makeing one buildbot fail for unknown reason. Remove
it until we can investifate further.
2021-10-21 22:40:19 +02:00
Valentin Clement 13c31539f7
[fir] Add Character helper
This patch is extracted from D111337. It introduce the
CharacterExprHelper that helps dealing with character in FIR.

Reviewed By: schweitz, awarzynski

Differential Revision: https://reviews.llvm.org/D112140

Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: V Donaldson <vdonaldson@nvidia.com>
2021-10-21 18:45:32 +02:00
Valentin Clement 7bbd7e9c1d
Revert "[fir] Add Character helper"
This reverts commit e4ce92245c.

Buildbots not happy with the tests.
2021-10-21 11:36:10 +02:00
Valentin Clement e4ce92245c
[fir] Add Character helper
This patch is extracted from D111337. It introduce the
CharacterExprHelper that helps dealing with character in FIR.

Reviewed By: schweitz, awarzynski

Differential Revision: https://reviews.llvm.org/D112140

Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: V Donaldson <vdonaldson@nvidia.com>
2021-10-21 09:48:37 +02:00
Valentin Clement 676d091c63
Revert "[fir] Add Character helper"
This reverts commit 02d7089c23.
2021-10-20 22:43:13 +02:00
Valentin Clement 02d7089c23
[fir] Add Character helper
This patch is extracted from D111337. It introduce the
CharacterExprHelper that helps dealing with character in FIR.

Reviewed By: schweitz, awarzynski

Differential Revision: https://reviews.llvm.org/D112140

Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
Co-authored-by: V Donaldson <vdonaldson@nvidia.com>
2021-10-20 21:35:02 +02:00
Valentin Clement c983aeddcf
[fir] Add character utility functions in FIRBuilder
Extract part of D111337 in order to mke it smaller
and easier to review. This patch add some utility
functions to the FIRBuilder.

Add the following utility functions:
- getCharacterLengthType
- createStringLiteral
- locationToFilename
- characterWithDynamicLen
- sequenceWithNonConstantShape
- hasDynamicSize

These bring up the BoxValue implementation together with it.

This patch is part of the upstreaming effort from fir-dev branch.

Reviewed By: AlexisPerry

Differential Revision: https://reviews.llvm.org/D112074

Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
2021-10-19 22:34:21 +02:00
Valentin Clement 45503fc044
[fir] Add FIRBuilder utility functions
Extract some code from the big ptach D111337. This patch
contains some utility functions from the FIRBuidler.

List of utility functions added:
- getRegion
- getModule
- getKindMap
- getRefType
- getVarLenSeqTy
- getRealType
- createNullConstant
- createRealConstant
- createRealZeroConstant
- createGlobal
- createGlobalConstant
- createStringLitOp
- getNamedFunction
- getNamedGlobal
- createFunction
- addNamedFunction
- createBool

This patch is part of the upstreaming effort from fir-dev branch.

Reviewed By: kiranchandramohan

Differential Revision: https://reviews.llvm.org/D112057

Co-authored-by: Jean Perier <jperier@nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
2021-10-19 14:19:45 +02:00