llvm-project/flang/test/Driver/driver-error-cc1.cpp

// RUN: not %flang-new %s 2>&1 | FileCheck %s

// REQUIRES: new-flang-driver

// C++ files are currently not supported (i.e. `flang -cc1`)

// CHECK: error: unknown integrated tool '-cc1'. Valid tools include '-fc1'.
[flang][driver] Add the new flang compiler and frontend drivers Summary: This is the first patch implementing the new Flang driver as outlined in [1], [2] & [3]. It creates Flang driver (`flang-new`) and Flang frontend driver (`flang-new -fc1`). These will be renamed as `flang` and `flang -fc1` once the current Flang throwaway driver, `flang`, can be replaced with `flang-new`. Currently only 2 options are supported: `-help` and `--version`. `flang-new` is implemented in terms of libclangDriver, defaulting the driver mode to `FlangMode` (added to libclangDriver in [4]). This ensures that the driver runs in Flang mode regardless of the name of the binary inferred from argv[0]. The design of the new Flang compiler and frontend drivers is inspired by it counterparts in Clang [3]. Currently, the new Flang compiler and frontend drivers re-use Clang libraries: clangBasic, clangDriver and clangFrontend. To identify Flang options, this patch adds FlangOption/FC1Option enums. Driver::printHelp is updated so that `flang-new` prints only Flang options. The new Flang driver is disabled by default. To enable it, set `-DBUILD_FLANG_NEW_DRIVER=ON` when configuring CMake and add clang to `LLVM_ENABLE_PROJECTS` (e.g. -DLLVM_ENABLE_PROJECTS=“clang;flang;mlir”). [1] “RFC: new Flang driver - next steps” http://lists.llvm.org/pipermail/flang-dev/2020-July/000470.html [2] “RFC: Adding a fortran mode to the clang driver for flang” http://lists.llvm.org/pipermail/cfe-dev/2019-June/062669.html [3] “RFC: refactoring libclangDriver/libclangFrontend to share with Flang” http://lists.llvm.org/pipermail/cfe-dev/2020-July/066393.html [4] https://reviews.llvm.org/rG6bf55804924d5a1d902925ad080b1a2b57c5c75c co-authored-by: Andrzej Warzynski <andrzej.warzynski@arm.com> Reviewed By: richard.barton.arm, sameeranjoshi Differential Revision: https://reviews.llvm.org/D86089 2020-09-11 17:17:31 +08:00			`// RUN: not %flang-new %s 2>&1 \| FileCheck %s`

			`// REQUIRES: new-flang-driver`

			// C++ files are currently not supported (i.e. `flang -cc1`)

[flang] Introduce DiagnosticConsumer classes in libflangFrontend Currently Flang uses TextDiagnostic, TextDiagnosticPrinter & TestDiagnosticBuffer classes from Clang (more specifically, from libclangFrontend). This patch introduces simplified equivalents of these classes in Flang (i.e. it removes the dependency on libclangFrontend). Flang only needs these diagnostics classes for the compiler driver diagnostics. This is unlike in Clang in which similar diagnostic classes are used for e.g. Lexing/Parsing/Sema diagnostics. For this reason, the implementations introduced here are relatively basic. We can extend them in the future if this is required. This patch also enhances how the diagnostics are printed. In particular, this is the diagnostic that you'd get _before_ the changes introduced here (no text formatting): ``` $ bin/flang-new error: no input files ``` This is the diagnostic that you get _after_ the changes introduced here (in terminals that support it, the text is formatted - bold + red): ``` $ bin/flang-new flang-new: error: no input files ``` Tests are updated accordingly and options related to enabling/disabling color diagnostics are flagged as supported by Flang. Reviewed By: sameeranjoshi, CarolineConcatto Differential Revision: https://reviews.llvm.org/D87774 2020-10-06 00:42:00 +08:00			`// CHECK: error: unknown integrated tool '-cc1'. Valid tools include '-fc1'.`