[clang][flang][mlir] Reapply "Support -frecord-command-line option (#102975)"

The underlying issue was caused by a file included in two different
places which resulted in duplicate definition error

[clang][flang][mlir] Reapply "Support -frecord-command-line option (#102975)"

The underlying issue was caused by a file included in two different
places which resulted in duplicate definition errors when linking
individual shared libraries. This was fixed in c3201ddaeac02a2c86a38b
[#109874].

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Revert "[clang][flang][mlir] Support -frecord-command-line option (#102975)"

This reverts commit b3533a156da92262eb19429d8c12f53e87f5ccec.

It caused test failures in shared library builds:
https://

Revert "[clang][flang][mlir] Support -frecord-command-line option (#102975)"

This reverts commit b3533a156da92262eb19429d8c12f53e87f5ccec.

It caused test failures in shared library builds:
https://lab.llvm.org/buildbot/#/builders/80/builds/3854

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[clang][flang][mlir] Support -frecord-command-line option (#102975)

Add support for the -frecord-command-line option that will produce the
llvm.commandline metadata which will eventually be saved i

[clang][flang][mlir] Support -frecord-command-line option (#102975)

Add support for the -frecord-command-line option that will produce the
llvm.commandline metadata which will eventually be saved in the object
file. This behavior is also supported in clang. Some refactoring of the
code in flang to handle these command line options was carried out. The
corresponding -grecord-command-line option which saves the command line
in the debug information has not yet been enabled for flang.

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[flang][mlir] Add llvm.ident metadata when compiling with flang

This brings the behavior of flang in line with clang which also adds
this metadata unconditionally.

Co-authored-by: Tarun Prabhu <

[flang][mlir] Add llvm.ident metadata when compiling with flang

This brings the behavior of flang in line with clang which also adds
this metadata unconditionally.

Co-authored-by: Tarun Prabhu <tarun.prabhu@gmail.com>

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Add basic -mtune support (#98517)

Initial implementation for the -mtune flag in Flang.

This PR is a clean version of PR #96688, which is a re-land of PR #95043

Revert "[flang] Add basic -mtune support" (#96678)

Reverts llvm/llvm-project#95043

[flang] Add basic -mtune support (#95043)

This PR adds -mtune as a valid flang flag and passes the information
through to LLVM IR as an attribute on all functions. No specific
architecture optimiz

[flang] Add basic -mtune support (#95043)

This PR adds -mtune as a valid flang flag and passes the information
through to LLVM IR as an attribute on all functions. No specific
architecture optimizations are added at this time.

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[Flang][Lower] Attach target_cpu and target_features attributes to MLIR functions (#78289)

This patch forwards the target CPU and features information from the
Flang frontend to MLIR func.func oper

[Flang][Lower] Attach target_cpu and target_features attributes to MLIR functions (#78289)

This patch forwards the target CPU and features information from the
Flang frontend to MLIR func.func operation attributes, which are later
used to populate the target_cpu and target_features llvm.func
attributes.

This is achieved in two stages:

1. Introduce the `fir.target_cpu` and `fir.target_features` module
attributes with information from the target machine immediately after
the initial creation of the MLIR module in the lowering bridge.

2. Update the target rewrite flang pass to get this information from the
module and pass it along to all func.func MLIR operations, respectively
as attributes named `target_cpu` and `target_features`. These attributes
will be automatically picked up during Func to LLVM dialect lowering and
used to initialize the corresponding llvm.func named attributes.

The target rewrite and FIR to LLVM lowering passes are updated with the
ability to override these module attributes, and the `CodeGenSpecifics`
optimizer class is augmented to make this information available to
target-specific MLIR transformations.

This completes a full flow by which target CPU and features make it all
the way from compiler options to LLVM IR function attributes.

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[flang][hlfir] Fixed KindMapping for HLFIR intrinsics lowering.

hlfir.count lowering was using incorrect default integer kind
by ignoring the kind specified in the ModuleOp.

Reviewed By: tblah

Dif

[flang][hlfir] Fixed KindMapping for HLFIR intrinsics lowering.

hlfir.count lowering was using incorrect default integer kind
by ignoring the kind specified in the ModuleOp.

Reviewed By: tblah

Differential Revision: https://reviews.llvm.org/D156017

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Break circular dependency between FIR dialect and utilities