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fd922e6ab0
Modify code generation for assigned gotos to generate a runtime error for most cases that violate F90 Clause 8.2.4, rather than treating a nonconformant GOTO as a nop. For example, generate a runtime error for a GOTO that attempts to branch to a label for a FORMAT statement. Relax the requirement that an assigned GOTO with a label list must branch to a label in the list, and instead allow a branch to any valid assigned GOTO target in scope.
41 lines
949 B
Fortran
41 lines
949 B
Fortran
! RUN: bbc -emit-fir -o - %s | FileCheck %s
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! CHECK-LABEL: func @_QPnolist
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subroutine nolist
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integer L, V
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11 V = 1
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! CHECK: fir.store %c31{{.*}} to %{{.}}
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assign 31 to L
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! CHECK: fir.select %{{.}} : i32 [31, ^bb{{.}}, unit, ^bb{{.}}]
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! CHECK: fir.call @_FortranAReportFatalUserError
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goto L ! no list
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21 V = 2
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go to 41
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31 V = 3
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41 print*, 3, V
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end
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! CHECK-LABEL: func @_QPlist
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subroutine list
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integer L, L1, V
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66 format("Nonsense")
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assign 66 to L
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assign 42 to L1
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! CHECK: fir.store %c22{{.*}} to %{{.}}
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assign 22 to L
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12 V = 100
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! CHECK: fir.store %c32{{.*}} to %{{.}}
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assign 32 to L
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! CHECK: fir.select %{{.}} : i32 [22, ^bb{{.}}, 32, ^bb{{.}}, unit, ^bb{{.}}]
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! CHECK: fir.call @_FortranAReportFatalUserError
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goto L (42, 32, 22, 32, 32) ! duplicate labels are allowed
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22 V = 200
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go to 42
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32 V = 300
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42 print*, 300, V
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end
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call nolist
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call list
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end
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