3e782ba21b
Until now, `-x` wasn't really taken into account in Flang's compiler and frontend drivers. `flang-new` and `flang-new -fc1` only recently gained powers to consume inputs other than Fortran files and that's probably why this hasn't been noticed yet. This patch makes sure that `-x` is supported correctly and consistently with Clang. To this end, verification is added when reading LLVM IR files (i.e. IR modules are verified with `llvm::verifyModule`). This way, LLVM IR parsing errors are correctly reported to Flang users. This also aids testing. With the new functionality, we can verify that `-x ir` breaks compilation for e.g. Fortran files and vice-versa. Tests are updated accordingly. Differential Revision: https://reviews.llvm.org/D127207
48 lines
1.8 KiB
Fortran
48 lines
1.8 KiB
Fortran
! Verify that reading from stdin works as expected - Fortran input
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!--------------------------
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! FLANG DRIVER (flang)
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!--------------------------
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! Input type is implicit
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! RUN: cat %s | %flang -E -cpp - | FileCheck %s --check-prefix=PP-NOT-DEFINED
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! RUN: cat %s | %flang -DNEW -E -cpp - | FileCheck %s --check-prefix=PP-DEFINED
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! RUN: cat %s | %flang -DNEW -E - | FileCheck %s --check-prefix=PP-NOT-DEFINED
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! RUN: cat %s | %flang -DNEW -E -nocpp - | FileCheck %s --check-prefix=PP-NOT-DEFINED
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! Input type is explicit
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! RUN: cat %s | %flang -E -cpp -x f95-cpp-input - | FileCheck %s --check-prefix=PP-NOT-DEFINED
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! RUN: cat %s | %flang -DNEW -E -cpp -x f95-cpp-input - | FileCheck %s --check-prefix=PP-DEFINED
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!---------------------------------------
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! FLANG FRONTEND DRIVER (flang -fc1)
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!---------------------------------------
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! Test `-E`: for the corresponding frontend actions the driver relies on the prescanner API to handle file I/O
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! RUN: cat %s | %flang -fc1 -E -cpp | FileCheck %s --check-prefix=PP-NOT-DEFINED
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! RUN: cat %s | %flang -fc1 -DNEW -E -cpp | FileCheck %s --check-prefix=PP-DEFINED
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! Test `-test-io`: for the corresponding frontend action (`InputOutputTestAction`) the driver handles the file I/O on its own
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! the corresponding action (`PrintPreprocessedAction`)
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! RUN: cat %s | %flang -fc1 -test-io -cpp | FileCheck %s --check-prefix=IO --match-full-lines
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! RUN: cat %s | %flang -fc1 -DNEW -cpp -test-io | FileCheck %s --check-prefix=IO --match-full-lines
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!-------------------------
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! EXPECTED OUTPUT for `-E`
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!-------------------------
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! PP-NOT-DEFINED: Program B
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! PP-DEFINED: Program A
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!-------------------------------
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! EXPECTED OUTPUT for `-test-io`
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!-------------------------------
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! IO: #ifdef NEW
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! IO-NEXT: Program A
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! IO-NEXT: #else
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! IO-NEXT: Program B
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! IO-NEXT: #endif
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#ifdef NEW
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Program A
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#else
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Program B
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#endif
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