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TheRock/compiler/amd-llvm/flang/test/Driver/pass-plugin-codegen.f90
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39 lines
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Fortran

! This test checks that the pre-codegen hook of LLVM pass plugins is executed
! before the code generation pipeline. The hook can also replace the output
! with its own.
! UNSUPPORTED: system-windows
! REQUIRES: plugins, examples
! Plugins are currently broken on AIX, at least in the CI.
! XFAIL: system-aix
! Without -last-words the pass does nothing, flang emits assembly.
! RUN: %flang_fc1 -S %s -o - %loadbye \
! RUN: 2>&1 | FileCheck %s --check-prefix=CHECK-INACTIVE
! With -last-words the pass intercepts the code generation and prints
! "CodeGen Bye" instead.
! RUN: %flang_fc1 -S %s -o - %loadbye -mllvm -last-words \
! RUN: | FileCheck %s --check-prefix=CHECK-ACTIVE
! When emitting LLVM IR, no back-end is executed and therefore no
! pre-codegen hook of LLVM pass plugins are executed.
! RUN: %flang_fc1 -emit-llvm %s -o - %loadbye -mllvm -last-words \
! RUN: 2>&1 | FileCheck %s --check-prefix=CHECK-LLVM
! Bye fails and reports an error when an object file should be emitted.
! (Note that this is specific for Bye; other plugins can support this.)
! RUN: not %flang_fc1 -emit-obj %s -o - %loadbye -mllvm -last-words \
! RUN: 2>&1 | FileCheck %s --check-prefix=CHECK-ERR
! CHECK-INACTIVE-NOT: Bye
! CHECK-INACTIVE: empty_:
! CHECK-ACTIVE: CodeGen Bye
! CHECK-LLVM-NOT: Bye
! CHECK-LLVM: define{{.*}} void @empty_
! CHECK-ERR: error: last words unsupported for binary output
subroutine empty
end subroutine empty