[flang] Merge pull request flang-compiler/f18#367 from pawosm-arm/error-stop

Semantics checker for STOP and ERROR STOP statements.

Original-commit: flang-compiler/f18@e7aedb84ea4704a17a87e7168b7503bb4190858d
Reviewed-on: https://github.com/flang-compiler/f18/pull/367

[flang] Semantics checker for STOP and ERROR STOP statements - trust in implied check

Signed-off-by: Paul Osmialowski <pawel.osmialowski@arm.com>
Original-commit: flang-compiler/f18@7a98732f72649e65fdb1a286ae976aa3f3a9d4a0
Reviewed-on: https://github.com/flang-compiler/f18/pull/367

[flang] Semantics checker for STOP and ERROR STOP statements - one more batch of post-review tweaks

Signed-off-by: Paul Osmialowski <pawel.osmialowski@arm.com>
Original-commit: flang-compiler/f18@f49ee0df050cce83cc5cdd4c04a3d16465ebeacc
Reviewed-on: https://github.com/flang-compiler/f18/pull/367
Tree-same-pre-rewrite: false

[flang] Semantics checker for STOP and ERROR STOP statements - remove one more function from tools

Signed-off-by: Paul Osmialowski <pawel.osmialowski@arm.com>
Original-commit: flang-compiler/f18@9937b524fab7408aac9885ce737716047ec3493e
Reviewed-on: https://github.com/flang-compiler/f18/pull/367
Tree-same-pre-rewrite: false

[flang] Semantics checker for STOP and ERROR STOP statements - fix compilation broken by merge commit

Signed-off-by: Paul Osmialowski <pawel.osmialowski@arm.com>
Original-commit: flang-compiler/f18@1d36ab1f432e9d5de00e072db36e028ac310a8be
Reviewed-on: https://github.com/flang-compiler/f18/pull/367
Tree-same-pre-rewrite: false

[flang] Semantics checker for STOP and ERROR STOP statements - remove tools function not needed after recent commit

Signed-off-by: Paul Osmialowski <pawel.osmialowski@arm.com>
Original-commit: flang-compiler/f18@1a3dbd97528a0a158cf747c33ab2156c6b48f7a7
Reviewed-on: https://github.com/flang-compiler/f18/pull/367
Tree-same-pre-rewrite: false

[flang] Semantics checker for STOP and ERROR STOP statements - remove overhead checks and corresponding test cases

Signed-off-by: Paul Osmialowski <pawel.osmialowski@arm.com>
Original-commit: flang-compiler/f18@6ce6234acc5dbed42fbacc111be075810f65c554
Reviewed-on: https://github.com/flang-compiler/f18/pull/367
Tree-same-pre-rewrite: false

[flang] Semantics checker for STOP and ERROR STOP statements - better variable names

Signed-off-by: Paul Osmialowski <pawel.osmialowski@arm.com>
Original-commit: flang-compiler/f18@8b32caa287149e72834aad3cdc45473678b57605
Reviewed-on: https://github.com/flang-compiler/f18/pull/367
Tree-same-pre-rewrite: false

[flang] Semantics checker for STOP and ERROR STOP statements - ExprTypeKindIsDefault added to the tools

Signed-off-by: Paul Osmialowski <pawel.osmialowski@arm.com>
Original-commit: flang-compiler/f18@669b05b27d7ad5bee6689507d40199e941838b9a
Reviewed-on: https://github.com/flang-compiler/f18/pull/367
Tree-same-pre-rewrite: false

[flang] Semantics checker for STOP and ERROR STOP statements - test file rename

Signed-off-by: Paul Osmialowski <pawel.osmialowski@arm.com>
Original-commit: flang-compiler/f18@b89137b6148d5d515757fb6ea9191ba23681f4c4
Reviewed-on: https://github.com/flang-compiler/f18/pull/367
Tree-same-pre-rewrite: false

[flang] Semantics checker for STOP and ERROR STOP statements - namespaces sorted

Signed-off-by: Paul Osmialowski <pawel.osmialowski@arm.com>
Original-commit: flang-compiler/f18@d608779668e1c4f328ebb02dcc21536b2c0fdf2c
Reviewed-on: https://github.com/flang-compiler/f18/pull/367
Tree-same-pre-rewrite: false

[flang] Semantics checker for STOP and ERROR STOP statements - post review changes

Signed-off-by: Paul Osmialowski <pawel.osmialowski@arm.com>
Original-commit: flang-compiler/f18@08b564832c8a2439f35698d55f1d2a4482e6a54d
Reviewed-on: https://github.com/flang-compiler/f18/pull/367
Tree-same-pre-rewrite: false

[flang] Semantics checker for STOP and ERROR STOP statements.

This commit introduces a new checker (StopChecker) for STOP
and ERROR STOP Fortran statements along with a test code.

Signed-off-by: Paul Osmialowski <pawel.osmialowski@arm.com>
Original-commit: flang-compiler/f18@c5541745628a8c0c4d252386675c36ea83a68006
Reviewed-on: https://github.com/flang-compiler/f18/pull/367
Tree-same-pre-rewrite: false

[flang] Merge pull request flang-compiler/f18#417 from flang-compiler/tsk6

Fix bug resolving internal and module functions

Original-commit: flang-compiler/f18@ca5d61028286eb2462f7d8ed3be7fc66fadc0f9d
Reviewed-on: https://github.com/flang-compiler/f18/pull/417

[flang] Dump parse tree even if semantic error occurs

When -fdebug-dump-parse-tree is specified, dump the parse tree even
if semantic errors have occurred. This is necessary to see the parse
tree after it has been transformed.

Original-commit: flang-compiler/f18@bbdb0717da953c959cb1b6c531684952c239b98b
Reviewed-on: https://github.com/flang-compiler/f18/pull/417

[flang] Fix bug resolving internal and module functions

When analyzing a function call in an expression we weren't properly
recognizing a ProcedureDesignator that was the name of an internal
or module function, i.e. a symbol with SubprogramDetails.

The fix is to add IsProcedure to identify symbols that correspond
to procedures. IsFunction and GetType also need to be extended to
handle this case.

Fixes flang-compiler/f18#391.

Original-commit: flang-compiler/f18@f165f8d38ce0cefd16e0f35644e8fdcbe92ed6de
Reviewed-on: https://github.com/flang-compiler/f18/pull/417
Tree-same-pre-rewrite: false

[flang] Merge pull request flang-compiler/f18#416 from flang-compiler/pmk-val-fix

Resolve ambiguous I/O unit parse in favor of CharVariable.

Original-commit: flang-compiler/f18@cd7e907333ee9a0b1a3dfa00fb45d23e1cd6e49f
Reviewed-on: https://github.com/flang-compiler/f18/pull/416

[flang] More clean-up

Original-commit: flang-compiler/f18@ba2365f5f7e0cc029d7fc2ef2729a1b30a9396c2
Reviewed-on: https://github.com/flang-compiler/f18/pull/416

[flang] Generalize tools, clean up common/unwrap.h with new-found knowledge

Original-commit: flang-compiler/f18@aac16907cd0da6d9b68239f2b1a5c697af58e3f8
Reviewed-on: https://github.com/flang-compiler/f18/pull/416
Tree-same-pre-rewrite: false

[flang] Address review comments

Original-commit: flang-compiler/f18@7bc3c97f1e9d58957049f955ff18aff54a3c1a60
Reviewed-on: https://github.com/flang-compiler/f18/pull/416
Tree-same-pre-rewrite: false

[flang] Rewrite I/O units in the parse tree when a variable is not character.

Original-commit: flang-compiler/f18@46791a73e7f181ab4eb7ba2974c52bec07aafaa8
Reviewed-on: https://github.com/flang-compiler/f18/pull/416
Tree-same-pre-rewrite: false

[flang] Resolve ambiguous I/O unit parse in favor of CharVariable.

Original-commit: flang-compiler/f18@ecabe82825d9a3a6d70ee77a580072a731eb8f86
Reviewed-on: https://github.com/flang-compiler/f18/pull/416
Tree-same-pre-rewrite: false

[flang] Add software subnormal flushing around host library calls for hosts that cannot do it in HW

Merge pull request flang-compiler/f18#403 from flang-compiler/jpr1

Original-commit: flang-compiler/f18@31125bb081b454f2879c687338a53fecf6d8945c

[flang] Remove user warning messages for lack of subnormal HW flushing

Original-commit: flang-compiler/f18@4aecc1bceef9c0a7de6d2dfb57c92b0939943b4b

[flang] also fix accessor name

Original-commit: flang-compiler/f18@6ff8d22a57ea4dee88580a18d7e5648c492634db
Tree-same-pre-rewrite: false

[flang] address comment. Follow style guideline

Original-commit: flang-compiler/f18@60da44dc7df4bd438e14fc8d8d4eb6db208f18e8
Tree-same-pre-rewrite: false

[flang] removed unused func in tests

Original-commit: flang-compiler/f18@4c6e6ad4d05867ab1713c5cdcc3cf051ce43aa8e
Tree-same-pre-rewrite: false

[flang] Add software subnormal flusing around host library call for host arch that do not support it

Original-commit: flang-compiler/f18@04555f535977b9604f2b89f5eaeb0ac0ee52726e
Tree-same-pre-rewrite: false

[flang] make host subnormal flsuhing control test runtime independent

Original-commit: flang-compiler/f18@96b25596a7d7f1ece41571624e27bd2b4b5f5339
Tree-same-pre-rewrite: false

[flang] Test host subnormal flushing setup when folding on host

Original-commit: flang-compiler/f18@78381c897d1a3291a7deba17ed5a8412fa3f3a84
Tree-same-pre-rewrite: false

[flang] Merge pull request flang-compiler/f18#415 from flang-compiler/pmk-source-variables

Capture source locations for Designators and Calls

Original-commit: flang-compiler/f18@389423c71866205b7a3dc34f95a9de6f9daf4727
Reviewed-on: https://github.com/flang-compiler/f18/pull/415

[flang] Fix bug found in testing

Original-commit: flang-compiler/f18@45a1e6e3dc25132a2376a19c391242906426e3d2
Reviewed-on: https://github.com/flang-compiler/f18/pull/415

[flang] Capture source locations for Designators and Calls

Original-commit: flang-compiler/f18@970333fff79c0ba1574290ffe965febcd6371125
Reviewed-on: https://github.com/flang-compiler/f18/pull/415
Tree-same-pre-rewrite: false

[flang] Merge pull request flang-compiler/f18#414 from flang-compiler/tsk3

More coarray name resolution and semantic checks

Original-commit: flang-compiler/f18@3008e8638d91b08e614a3a4619c6e5e387c41cec
Reviewed-on: https://github.com/flang-compiler/f18/pull/414

[flang] Address review comments

Original-commit: flang-compiler/f18@577629f4895fab4f1e471694b0e728def2fe6ef5
Reviewed-on: https://github.com/flang-compiler/f18/pull/414

[flang] More coarray name resolution and semantic checks

Add CoarrayChecker to check for valid team-value in CHANGE TEAM,
SYNC TEAM, and image selector. Check that coarray names and selector
names are distinct in CHANGE TEAM.

Resolve the variable in a coarray-association.
Create a scope for the construct entities of a CHANGE TEAM construct.

Add ResolveSelector to resolve a parser::Selector into an Expr and
optional variable name (and a source location for messages). Make use of
ResolveSelector to handle coarray-association, as well as it's previous
use in associate-stmt.

Improve the check for C1157 in select-type-stmt and add a test.

Add a test for "Associate name must have a type".

Move ResolveName, ResolveDataRef, etc. from ResolveNamesVisitor
to DeclarationVisitor so that they are available in ConstructVisitor
as well. Add ResolveVariable and ResolveDesignator.

In the parse tree, change TeamValue from a type alias to a wrapper
class. We already had a wrapper class anyway, ImageSelectorSpec::Team,
so the new TeamValue can be used instead. This allows the member
of ImageSelectorSpec to be treated like other occurrences of TeamValue.

Original-commit: flang-compiler/f18@f856744b542a453dea1a9e01ad4e629bf072cff3
Reviewed-on: https://github.com/flang-compiler/f18/pull/414
Tree-same-pre-rewrite: false

[flang] Merge branch 'sjs-check-return'

Conflicts:
lib/semantics/semantics.cc
test/semantics/CMakeLists.txt

Original-commit: flang-compiler/f18@71ae0d091585537738059637144f1985fd4b05f1

[flang] FindContainingSubprogram returns a pointer, not a reference.

Original-commit: flang-compiler/f18@7d221b09bd9b77800d85e9bc2a0084a95237be65

[flang] Avoid copying scope. Improve readability.

Original-commit: flang-compiler/f18@5d2213cd7a68e9d125304e5d2e6e7e7fd8472b99
Tree-same-pre-rewrite: false

[flang] Scope is only ever set to the address of a Scope,
so it can never be null. The condition should be
scope->kind() != Scope::Kind::Global.
And clang-format.

Original-commit: flang-compiler/f18@b686ab548a727561e1d65976432fed48e85b28d6
Tree-same-pre-rewrite: false

[flang] Implement semantic checks for return and alt-return.

Original-commit: flang-compiler/f18@123c23783b55656f7cf221a4daa4d6454a30c0f5
Tree-same-pre-rewrite: false

[flang] Merge pull request flang-compiler/f18#413 from flang-compiler/pmk-no-scope-copy-constr

Delete the default copy constructor for Scope.

Original-commit: flang-compiler/f18@d77e93fceca86368beefcf5e953ee6f63136624d
Reviewed-on: https://github.com/flang-compiler/f18/pull/413

[flang] Delete the default copy constructor for Scope.

Original-commit: flang-compiler/f18@e8e3e5fd467e085b7db9c472fa8bba5306089dda
Reviewed-on: https://github.com/flang-compiler/f18/pull/413

[flang] Merge pull request flang-compiler/f18#406 from flang-compiler/pmk-fix-expr-constraints

Reactivate tree-driven expression constraint checking

Original-commit: flang-compiler/f18@febcdef3681a0c431282947e308bfdb995698010
Reviewed-on: https://github.com/flang-compiler/f18/pull/406

[flang] Fix clang warning that crept into codebase over weekend

Original-commit: flang-compiler/f18@8c8ad4c0d8db06f5421cfeb5fe2529ed06fe53c9
Reviewed-on: https://github.com/flang-compiler/f18/pull/406

[flang] reformatting

Original-commit: flang-compiler/f18@d9bfa6f48e92ac5d305ee896db4d35ab64c0df7f
Reviewed-on: https://github.com/flang-compiler/f18/pull/406
Tree-same-pre-rewrite: false

[flang] pass all tests

Original-commit: flang-compiler/f18@3cee1993a1c367aac670bbd77ac49a14e509411c
Reviewed-on: https://github.com/flang-compiler/f18/pull/406
Tree-same-pre-rewrite: false

[flang] Ensure no failed expression analyses without fatal errors.

Original-commit: flang-compiler/f18@3ef8b430311653cafb8f830c08ac08d5926bb11b
Reviewed-on: https://github.com/flang-compiler/f18/pull/406
Tree-same-pre-rewrite: false

[flang] Capitalize INTEGER in error messages

Original-commit: flang-compiler/f18@c00527c6812229d0515e1051c5e1c6c8bf07d283
Reviewed-on: https://github.com/flang-compiler/f18/pull/406
Tree-same-pre-rewrite: false

[flang] Finish up

Original-commit: flang-compiler/f18@8c8242e6f441377ec2d209d5c178787d64f6398e
Reviewed-on: https://github.com/flang-compiler/f18/pull/406
Tree-same-pre-rewrite: false

[flang] Split doconcurrent04.f90 test into one with expression checks and one for later semantics pass.

Original-commit: flang-compiler/f18@6b9c25177b606eca0cb9d8d47dd1d5ac1ee7635b
Reviewed-on: https://github.com/flang-compiler/f18/pull/406
Tree-same-pre-rewrite: false

[flang] Reactivate tree-driven constraint checking on expressions.

Original-commit: flang-compiler/f18@85c4a6aab601cf2a1647ec27b29f9c6decbe1ed6
Reviewed-on: https://github.com/flang-compiler/f18/pull/406
Tree-same-pre-rewrite: false

[flang] Merge pull request flang-compiler/f18#409 from flang-compiler/klausler-patch-1

Update FortranForCProgrammers.md

Original-commit: flang-compiler/f18@ed5d245cc330d9cccec2b62912052745ae9c0bda
Reviewed-on: https://github.com/flang-compiler/f18/pull/409

[flang] Update FortranForCProgrammers.md

Clean up grammar and fix errata.

Original-commit: flang-compiler/f18@d88645314890e8d1a546a4514049a83f9ef2ae37
Reviewed-on: https://github.com/flang-compiler/f18/pull/409

[flang] Merge pull request flang-compiler/f18#397 from pawosm-arm/ftz-aarch64

AArch64: Set flushing mode for subnormals on glibc and bionic based systems

Original-commit: flang-compiler/f18@f252855a3aed3a22cfc5f92028967f405021630c
Reviewed-on: https://github.com/flang-compiler/f18/pull/397

[flang] AArch64: Set flushing mode for subnormals on glibc and bionic based systems

Signed-off-by: Paul Osmialowski <pawel.osmialowski@arm.com>
Original-commit: flang-compiler/f18@4881e3a91c34671a38ef410a771cd8e0e7a62e10
Reviewed-on: https://github.com/flang-compiler/f18/pull/397

[flang] Merge pull request flang-compiler/f18#410 from flang-compiler/tsk6

Remove ObjectName alternative from Designator

Original-commit: flang-compiler/f18@7c56fc3afbbd6dfa065f0659d7eee2cbb5638a1c
Reviewed-on: https://github.com/flang-compiler/f18/pull/410

[flang] Remove ObjectName alternative from Designator

A simple name in a `Designator` is always parsed as a `DataRef`, not
an `ObjectName`. So remove that alternative.

`StmtFunctionStmt::ConvertToAssignment` was creating a `Designator` with
that alternative: change it to do the same thing as the parser.

Add `GetSimpleName` utility functions to check if an `Expr` or `Variable`
represents a simple name. Many of the places that checked for `ObjectName`
in `Designator` are trying to do that.

Clean up includes and forward declarations in `tools.h`.

Original-commit: flang-compiler/f18@97d44de7b146aee601caa0bc529f7af8a6be001e
Reviewed-on: https://github.com/flang-compiler/f18/pull/410

[flang] Merge pull request flang-compiler/f18#408 from schweitzpgi/qualtype

various code cleanups from QualifiedSmt reviews

Original-commit: flang-compiler/f18@71c5859d077ca8fdfeb246f15ab65139c67da702
Reviewed-on: https://github.com/flang-compiler/f18/pull/408

[flang] tweak comment

Original-commit: flang-compiler/f18@7f5f44043986904c63123923e215f09abdaba0db
Reviewed-on: https://github.com/flang-compiler/f18/pull/408

[flang] handle review comment: make ctor private

Original-commit: flang-compiler/f18@cc6bf19f81c0856fc1566043bbf62fb335b03654
Reviewed-on: https://github.com/flang-compiler/f18/pull/408
Tree-same-pre-rewrite: false

[flang] various code cleanups from QualifiedType reviews

Original-commit: flang-compiler/f18@b17f24da8fa85b7e7de8c54f430ba5d8299e53b2
Reviewed-on: https://github.com/flang-compiler/f18/pull/408
Tree-same-pre-rewrite: false

[flang] Merge pull request flang-compiler/f18#405 from flang-compiler/tsk-include-cleanup

Clean up includes

Original-commit: flang-compiler/f18@a0b5037c362743d0cfe76dc64dd17a0919261fed
Reviewed-on: https://github.com/flang-compiler/f18/pull/405

[flang] Clean up includes

indirection.h: Doesn't need ../common because it is in common.

expression.h: ../lib is the wrong path but the includes are needed.
They were probably coming in indirectly through other includes.

token-parsers.h: Include was not needed and parser shouldn't have
dependency on evaluate.

Original-commit: flang-compiler/f18@86f6b0023d8a72fd7ccf32b1754b5544b52d22ba
Reviewed-on: https://github.com/flang-compiler/f18/pull/405

[flang] Merge pull request flang-compiler/f18#404 from flang-compiler/sjs-cleanup

Misc code cleanup.

Original-commit: flang-compiler/f18@034c1317e6341c9abb14dda3f1614b7ceaba500a
Reviewed-on: https://github.com/flang-compiler/f18/pull/404

[flang] Cleanup -- Remove unnecessary inline keyword,
remove unnecessary (void) casts when ignoring
return values, call context_.Say() directly
instead of via messages(), and fix up some
formatting issues using clang-format.

Original-commit: flang-compiler/f18@68e5c02541e1c74abc48327a97291dc2aee530bb
Reviewed-on: https://github.com/flang-compiler/f18/pull/404

[flang] Merge pull request flang-compiler/f18#400 from flang-compiler/ps1-392

Removed unused parameter and tweaked the error message one more time.

Original-commit: flang-compiler/f18@2d20bc549c441c243b6085fe821d2eefd6594f39
Reviewed-on: https://github.com/flang-compiler/f18/pull/400

[flang] Hopefully the last fixup of messages that appear for bad termination
of a DO loop.

Original-commit: flang-compiler/f18@23f7471f3a8490b348d3ca0871c7c377e3173b6d
Reviewed-on: https://github.com/flang-compiler/f18/pull/400

[flang] My last change neglected to include the change to the message.

Original-commit: flang-compiler/f18@09444379f76e47401cf60f5589d65fcfd3dba7fa
Reviewed-on: https://github.com/flang-compiler/f18/pull/400
Tree-same-pre-rewrite: false

[flang] Removed unused parameter and tweaked the error message one more time.

Original-commit: flang-compiler/f18@476791da2a1b0e876ac42ed18933be5b90e51448
Reviewed-on: https://github.com/flang-compiler/f18/pull/400
Tree-same-pre-rewrite: false

[flang] Merge pull request flang-compiler/f18#401 from flang-compiler/check-deallocate

Implement semantic checks for DEALLOCATE statements.

Original-commit: flang-compiler/f18@e68120d7fa812a74508caff4899a02c39e12adf5
Reviewed-on: https://github.com/flang-compiler/f18/pull/401

[flang] Simply use context_.Say. Update test with duplicate dealloc opts.

Original-commit: flang-compiler/f18@61b7461552e69be3dde1059f597bd5140d50da8c
Reviewed-on: https://github.com/flang-compiler/f18/pull/401

[flang] Correct constraint numbers. Fix spelling error. Run clang-format.

Original-commit: flang-compiler/f18@59df0d39f335ba47da747e530dc8d7222d51e271
Reviewed-on: https://github.com/flang-compiler/f18/pull/401
Tree-same-pre-rewrite: false

[flang] Implement semantic checks for DEALLOCATE statements.
The parser checks for duplicate dealloc-opts and expr
analysis checks that dealloc-opts are the right type.

Original-commit: flang-compiler/f18@1ade7f66177c8d7698b1e9da12904352c520e9d1
Reviewed-on: https://github.com/flang-compiler/f18/pull/401
Tree-same-pre-rewrite: false

[flang] Merge pull request flang-compiler/f18#399 from schweitzpgi/qualtype

add QualifiedStmt class

Original-commit: flang-compiler/f18@984f9d7a297352d03a04adacb50d02b8fef61676
Reviewed-on: https://github.com/flang-compiler/f18/pull/399

[flang] add std::move per review comments

Original-commit: flang-compiler/f18@0f3c1616ed6e33eca7646f939c7d551b6fe8d95f
Reviewed-on: https://github.com/flang-compiler/f18/pull/399

[flang] add QualifiedStmt class

Original-commit: flang-compiler/f18@6bc660c355a97dae0d3ee3edac00cc820b67b4b4
Reviewed-on: https://github.com/flang-compiler/f18/pull/399
Tree-same-pre-rewrite: false

[flang] Merge pull request flang-compiler/f18#398 from flang-compiler/ps-392

Fix issue 392, improve the error message when a DO loop is terminated by something other than
END DO or CONTINUE

Original-commit: flang-compiler/f18@747858b7eba7fab93f2351410ed1717e3d4f9db9
Reviewed-on: https://github.com/flang-compiler/f18/pull/398

[flang] Changed the DO loop termination message to be different for the error
case.

Original-commit: flang-compiler/f18@51cf517ccaff65d56277a0d316a512c99839787d
Reviewed-on: https://github.com/flang-compiler/f18/pull/398

[flang] Removed erroneous reference to "obsolete" and fixed up the message
as per Peter Klauser's recommendation.

Original-commit: flang-compiler/f18@f4d6d7007d6ce77761b0f2b99be011d48a996ce5
Reviewed-on: https://github.com/flang-compiler/f18/pull/398
Tree-same-pre-rewrite: false

[flang] Fixed up messages per comments from Peter Klausler.

Original-commit: flang-compiler/f18@4103ca4297e3c4cb2cb0dd4378ea3380b37f9874
Reviewed-on: https://github.com/flang-compiler/f18/pull/398
Tree-same-pre-rewrite: false

[flang] Fix issue 392, improve the error message when a DO loop is
terminated by a statement other than END DO or CONTINUE.

Original-commit: flang-compiler/f18@0a9280eab16394b578d8b1eae76e3a679b697770
Reviewed-on: https://github.com/flang-compiler/f18/pull/398
Tree-same-pre-rewrite: false

[flang] Merge pull request flang-compiler/f18#394 from flang-compiler/pmk-nml

Rewrite read-stmt/write-stmt parse trees for misparsed namelist group…

Original-commit: flang-compiler/f18@9e08bd4cec2afe5921a7687a2e27e199c49db8b9
Reviewed-on: https://github.com/flang-compiler/f18/pull/394

[flang] Do not replace format with namelist if there is no unit (avoiding accidental language extension)

Original-commit: flang-compiler/f18@08562d9b861bf6cb2d7e262b5f47fa58ca686134
Reviewed-on: https://github.com/flang-compiler/f18/pull/394

[flang] Rewrite read-stmt/write-stmt parse trees for misparsed namelist group names

Original-commit: flang-compiler/f18@e0f1b1c469eab3242748e5edbf0f163d750348e5
Reviewed-on: https://github.com/flang-compiler/f18/pull/394
Tree-same-pre-rewrite: false

[flang] Merge pull request flang-compiler/f18#393 from schweitzpgi/forward

Forwarding, etc.

Original-commit: flang-compiler/f18@0e587c931578d3490f9bc597a4387509acd072f9
Reviewed-on: https://github.com/flang-compiler/f18/pull/393

[flang] make the ctor use special type deduction so members can be moved and
copied in the same call

Original-commit: flang-compiler/f18@d18e8391fc9def0cf0abc54bb3bb1b68a0779764
Reviewed-on: https://github.com/flang-compiler/f18/pull/393

[flang] fix forward references

Original-commit: flang-compiler/f18@4d8902887df0cb4266a8bafc2e10529502a47f06
Reviewed-on: https://github.com/flang-compiler/f18/pull/393
Tree-same-pre-rewrite: false

[flang] Merge pull request flang-compiler/f18#395 from flang-compiler/tsk3

Fix source locations for some expressions

Original-commit: flang-compiler/f18@ac4fb9a1bece3f01f3308fb2e7afc6e083f20d73
Reviewed-on: https://github.com/flang-compiler/f18/pull/395

[flang] Fix source locations for some expressions

When expressions are parsed iteratively they weren't getting the correct
source positions. For example, when parsing an `add-operand` as a sequence
of `mult-operand`s separated by `mult-op`.

This shows up when we report an error message referring to this kind
of expression:
```
t.f90:1:11: error: Expected a LOGICAL expression
  if (i * j * k) then
            ^^^
```

The fix is to remember the location of the first operand and then
for each sub-expression (`i * j` and `i * j * k` in this example)
extend its location back to include that first operand.

Original-commit: flang-compiler/f18@e276f11f48f116fa090cf72bcb73199a44d030c3
Reviewed-on: https://github.com/flang-compiler/f18/pull/395

[flang] Merge pull request flang-compiler/f18#390 from flang-compiler/pmk-389

Fix bug#389, prevent std::move() on forwarded lvalue references

Original-commit: flang-compiler/f18@198b0cc5728a8bad2c7d65eefd800c80f4f0595b
Reviewed-on: https://github.com/flang-compiler/f18/pull/390

[flang] Redo without macros

Original-commit: flang-compiler/f18@8d955cfb3b6ac05066af34f574a76dd1bcd20d88
Reviewed-on: https://github.com/flang-compiler/f18/pull/390

[flang] fix bug found in testing

Original-commit: flang-compiler/f18@297ad78510e82f44a123c408561d7782c62f7bd2
Reviewed-on: https://github.com/flang-compiler/f18/pull/390
Tree-same-pre-rewrite: false

[flang] Lots of debugging and refinement

Original-commit: flang-compiler/f18@1c3c30b5401ff04550d2289b25bafe6229a4a2cc
Reviewed-on: https://github.com/flang-compiler/f18/pull/390
Tree-same-pre-rewrite: false

[flang] Revert that reversion.  Move semantics work just fine.

Original-commit: flang-compiler/f18@72bd8e7b03011b6e96efa40ed269c5bdfc8d955d
Reviewed-on: https://github.com/flang-compiler/f18/pull/390
Tree-same-pre-rewrite: false

[flang] Revert to forwarding on variadic messaging APIs

Original-commit: flang-compiler/f18@d2e464eb15ef9debf675a7eb262ac1e007b56b17
Reviewed-on: https://github.com/flang-compiler/f18/pull/390
Tree-same-pre-rewrite: false

[flang] Fix comment

Original-commit: flang-compiler/f18@d1345ca4fc45ee7445b211942b4c9cfef847b3fb
Reviewed-on: https://github.com/flang-compiler/f18/pull/390
Tree-same-pre-rewrite: false

[flang] Fix bug#389, prevent std::move() on forwarded lvalue references

Original-commit: flang-compiler/f18@9d61c091ad3843056741b0bd4791cec1ac7a583e
Reviewed-on: https://github.com/flang-compiler/f18/pull/390
Tree-same-pre-rewrite: false

[flang] Merge pull request flang-compiler/f18#388 from flang-compiler/check-nullify

Check semantic constraints for the nullify statement.

Original-commit: flang-compiler/f18@a2f19b65636f2a6858252a229664767a6e475310
Reviewed-on: https://github.com/flang-compiler/f18/pull/388

[flang] Use structureComponent.component.symbol directly instead of getting
the symbol from the result of expression analysis.  (This opens the
door to moving structure component semantic checking to expression
analysis.)

Also, improve error messages, remove unused include files, and add
copyright headers to test files.

Original-commit: flang-compiler/f18@17780c40d7380db9760e972dcc52724838cd89d8
Reviewed-on: https://github.com/flang-compiler/f18/pull/388