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[flang] Add -fsyntax-only to f18; retain -fparse-only synonym
Now that semantics is working, the standard -fsyntax-only option of GNU and Clang should be used as the name of the option that causes f18 to just run the front-end. Support both options in f18, silently accepting the old option as a synonym for the new one (as preferred by the code owner), and replace all instances of the old -fparse-only option with -fsyntax-only throughout the source base. Differential Revision: https://reviews.llvm.org/D95887
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‎flang/docs/ImplementingASemanticCheck.md

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‎flang/docs/Overview.md

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‎flang/test/Evaluate/test_folding.sh

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@@ -32,7 +32,7 @@ temp=$1
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mkdir -p $temp
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shift
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CMD="$* -fdebug-dump-symbols -fparse-only"
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CMD="$* -fdebug-dump-symbols -fsyntax-only"
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# Check if tests should assume folding is using libpgmath
3838
if [[ $LIBPGMATH ]]; then

‎flang/test/Flang-Driver/parse-error.f95

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@@ -1,5 +1,5 @@
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! RUN: not %flang-new -fc1 -fsyntax-only %s 2>&1 | FileCheck %s --check-prefix=ERROR
2-
! RUN: not %f18 -parse-only %s 2>&1 | FileCheck %s --check-prefix=ERROR
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! RUN: not %f18 -syntax-only %s 2>&1 | FileCheck %s --check-prefix=ERROR
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! REQUIRES: new-flang-driver
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‎flang/test/Flang-Driver/syntax-only.f90

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@@ -1,5 +1,5 @@
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! RUN: not %flang-new -fc1 -fsyntax-only %s 2>&1 | FileCheck %s
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! RUN: not %f18 -fparse-only %s 2>&1 | FileCheck %s
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! RUN: not %f18 -fsyntax-only %s 2>&1 | FileCheck %s
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! REQUIRES: new-flang-driver
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‎flang/test/Frontend/prescanner-diag.f90

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! RUN: %flang-new -fc1 -E -I %S/Inputs/ %s 2>&1 | FileCheck %s
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! Test with -fsyntax-only (i.e. ParseSyntaxOnlyAction, stops after semantic checks)
9-
! RUN: %f18 -fparse-only -I %S/Inputs/ %s 2>&1 | FileCheck %s
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! RUN: %f18 -fsyntax-only -I %S/Inputs/ %s 2>&1 | FileCheck %s
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! RUN: %flang-new -fsyntax-only -I %S/Inputs/ %s 2>&1 | FileCheck %s
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! RUN: %flang-new -fc1 -fsyntax-only -I %S/Inputs/ %s 2>&1 | FileCheck %s
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‎flang/test/Lower/pre-fir-tree01.f90

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! RUN: %f18 -fdebug-pre-fir-tree -fparse-only %s | FileCheck %s
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! RUN: %f18 -fdebug-pre-fir-tree -fsyntax-only %s | FileCheck %s
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! Test structure of the Pre-FIR tree
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‎flang/test/Lower/pre-fir-tree02.f90

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! RUN: %f18 -fdebug-pre-fir-tree -fparse-only %s | FileCheck %s
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! RUN: %f18 -fdebug-pre-fir-tree -fsyntax-only %s | FileCheck %s
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! Test Pre-FIR Tree captures all the intended nodes from the parse-tree
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! Coarray and OpenMP related nodes are tested in other files.

‎flang/test/Lower/pre-fir-tree03.f90

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Original file line numberDiff line numberDiff line change
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! RUN: %f18 -fdebug-pre-fir-tree -fparse-only -fopenmp %s | FileCheck %s
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! RUN: %f18 -fdebug-pre-fir-tree -fsyntax-only -fopenmp %s | FileCheck %s
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! Test Pre-FIR Tree captures OpenMP related constructs
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‎flang/test/Lower/pre-fir-tree04.f90

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! RUN: %f18 -fdebug-pre-fir-tree -fparse-only %s | FileCheck %s
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! RUN: %f18 -fdebug-pre-fir-tree -fsyntax-only %s | FileCheck %s
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! Test Pre-FIR Tree captures all the coarray related statements
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‎flang/test/Lower/pre-fir-tree05.f90

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1-
! RUN: %f18 -fdebug-pre-fir-tree -fparse-only -fopenacc %s | FileCheck %s
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! RUN: %f18 -fdebug-pre-fir-tree -fsyntax-only -fopenacc %s | FileCheck %s
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! Test structure of the Pre-FIR tree with OpenACC construct
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‎flang/test/Semantics/call17.f90

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1-
! RUN: %f18 -fparse-only $s 2>&1 | FileCheck %s
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! RUN: %f18 -fsyntax-only $s 2>&1 | FileCheck %s
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! Regression test: don't emit a bogus error about an invalid specification expression
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! in the declaration of a binding

‎flang/test/Semantics/data05.f90

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1-
!RUN: %f18 -fdebug-dump-symbols -fparse-only %s | FileCheck %s
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!RUN: %f18 -fdebug-dump-symbols -fsyntax-only %s | FileCheck %s
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module m
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interface
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integer function ifunc(n)

‎flang/test/Semantics/data08.f90

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1-
! RUN: %f18 -fdebug-dump-symbols -fparse-only %s 2>&1 | FileCheck %s
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! RUN: %f18 -fdebug-dump-symbols -fsyntax-only %s 2>&1 | FileCheck %s
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! CHECK: DATA statement value initializes 'jx' of type 'INTEGER(4)' with CHARACTER
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! CHECK: DATA statement value initializes 'jy' of type 'INTEGER(4)' with CHARACTER
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! CHECK: DATA statement value initializes 'jz' of type 'INTEGER(4)' with CHARACTER

‎flang/test/Semantics/data09.f90

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! RUN: %f18 -fparse-only -fdebug-dump-symbols %s 2>&1 | FileCheck %s
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! RUN: %f18 -fsyntax-only -fdebug-dump-symbols %s 2>&1 | FileCheck %s
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! CHECK: init:[INTEGER(4)::1065353216_4,1073741824_4,1077936128_4,1082130432_4]
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! Verify that the closure of EQUIVALENCE'd symbols with any DATA
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! initialization produces a combined initializer.

‎flang/test/Semantics/empty.f90

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! RUN: %f18 -fparse-only %s
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! RUN: %f18 -fsyntax-only %s
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! RUN: rm -rf %t && mkdir %t
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! RUN: touch %t/empty.f90
4-
! RUN: %f18 -fparse-only %t/empty.f90
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! RUN: %f18 -fsyntax-only %t/empty.f90

‎flang/test/Semantics/final02.f90

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!RUN: %f18 -fparse-only %s 2>&1 | FileCheck %s
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!RUN: %f18 -fsyntax-only %s 2>&1 | FileCheck %s
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module m
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type :: t1
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integer :: n

‎flang/test/Semantics/getdefinition01.f90

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@@ -16,12 +16,12 @@ recursive pure function f() result(x)
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end module
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! RUN and CHECK lines at the bottom as this test is sensitive to line numbers
19-
! RUN: %f18 -fget-definition 6 17 18 -fparse-only %s | FileCheck --check-prefix=CHECK1 %s
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! RUN: %f18 -fget-definition 7 20 23 -fparse-only %s | FileCheck --check-prefix=CHECK2 %s
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! RUN: %f18 -fget-definition 14 3 4 -fparse-only %s | FileCheck --check-prefix=CHECK3 %s
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! RUN: %f18 -fget-definition 6 17 18 -fsyntax-only %s | FileCheck --check-prefix=CHECK1 %s
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! RUN: %f18 -fget-definition 7 20 23 -fsyntax-only %s | FileCheck --check-prefix=CHECK2 %s
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! RUN: %f18 -fget-definition 14 3 4 -fsyntax-only %s | FileCheck --check-prefix=CHECK3 %s
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! CHECK1: x:{{.*}}getdefinition01.f90, 5, 21-22
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! CHECK2: yyy:{{.*}}getdefinition01.f90, 5, 24-27
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! CHECK3: x:{{.*}}getdefinition01.f90, 13, 24-25
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26-
! RUN: not %f18 -fget-definition -fparse-only %s 2>&1 | FileCheck --check-prefix=CHECK-ERROR %s
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! RUN: not %f18 -fget-definition -fsyntax-only %s 2>&1 | FileCheck --check-prefix=CHECK-ERROR %s
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! CHECK-ERROR: Invalid argument to -fget-definitions

‎flang/test/Semantics/getdefinition02.f

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@@ -17,9 +17,9 @@ recursive pure function f() result(x)
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end module
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1919
! RUN and CHECK lines here as test is sensitive to line numbers
20-
! RUN: %f18 -fget-definition 7 9 10 -fparse-only %s 2>&1 | FileCheck --check-prefix=CHECK1 %s
21-
! RUN: %f18 -fget-definition 8 26 29 -fparse-only %s 2>&1 | FileCheck --check-prefix=CHECK2 %s
22-
! RUN: %f18 -fget-definition 15 9 10 -fparse-only %s 2>&1 | FileCheck --check-prefix=CHECK3 %s
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! RUN: %f18 -fget-definition 7 9 10 -fsyntax-only %s 2>&1 | FileCheck --check-prefix=CHECK1 %s
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! RUN: %f18 -fget-definition 8 26 29 -fsyntax-only %s 2>&1 | FileCheck --check-prefix=CHECK2 %s
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! RUN: %f18 -fget-definition 15 9 10 -fsyntax-only %s 2>&1 | FileCheck --check-prefix=CHECK3 %s
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! CHECK1: x:{{.*}}getdefinition02.f, 5, 27-28
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! CHECK2: yyy:{{.*}}getdefinition02.f, 5, 30-33
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! CHECK3: x:{{.*}}getdefinition02.f, 14, 30-31

‎flang/test/Semantics/getdefinition03-a.f90

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@@ -7,7 +7,7 @@ program main
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x = f
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end program
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10-
! RUN: %f18 -fget-definition 7 6 7 -fparse-only %s | FileCheck --check-prefix=CHECK1 %s
11-
! RUN: %f18 -fget-definition 7 2 3 -fparse-only %s | FileCheck --check-prefix=CHECK2 %s
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! RUN: %f18 -fget-definition 7 6 7 -fsyntax-only %s | FileCheck --check-prefix=CHECK1 %s
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! RUN: %f18 -fget-definition 7 2 3 -fsyntax-only %s | FileCheck --check-prefix=CHECK2 %s
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! CHECK1: f:{{.*}}getdefinition03-b.f90, 2, 12-13
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! CHECK2: x:{{.*}}getdefinition03-a.f90, 6, 13-14

‎flang/test/Semantics/getdefinition04.f90

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@@ -6,5 +6,5 @@ program main
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x = y
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end program
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9-
! RUN: %f18 -fget-definition 6 3 4 -fparse-only %s | FileCheck %s
9+
! RUN: %f18 -fget-definition 6 3 4 -fsyntax-only %s | FileCheck %s
1010
! CHECK: x:{{.*}}getdefinition04.f90, 3, 14-15

‎flang/test/Semantics/getdefinition05.f90

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@@ -12,8 +12,8 @@ program main
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end program
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1414
!! Inner x
15-
! RUN: %f18 -fget-definition 9 5 6 -fparse-only %s | FileCheck --check-prefix=CHECK1 %s
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! RUN: %f18 -fget-definition 9 5 6 -fsyntax-only %s | FileCheck --check-prefix=CHECK1 %s
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! CHECK1: x:{{.*}}getdefinition05.f90, 7, 16-17
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!! Outer y
18-
! RUN: %f18 -fget-definition 11 7 8 -fparse-only %s | FileCheck --check-prefix=CHECK2 %s
18+
! RUN: %f18 -fget-definition 11 7 8 -fsyntax-only %s | FileCheck --check-prefix=CHECK2 %s
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! CHECK2: y:{{.*}}getdefinition05.f90, 5, 14-15

‎flang/test/Semantics/getsymbols01.f90

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end function
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end module
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18-
! RUN: %f18 -fget-symbols-sources -fparse-only %s 2>&1 | FileCheck %s
18+
! RUN: %f18 -fget-symbols-sources -fsyntax-only %s 2>&1 | FileCheck %s
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! CHECK-COUNT-1:f:{{.*}}getsymbols01.f90, 12, 26-27
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! CHECK-COUNT-1:mm1:{{.*}}getsymbols01.f90, 2, 8-11
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! CHECK-COUNT-1:s:{{.*}}getsymbols01.f90, 5, 18-19

‎flang/test/Semantics/getsymbols02.f90

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@@ -7,8 +7,8 @@ PROGRAM helloworld
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i = callget5()
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ENDPROGRAM
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10-
! RUN: %f18 -fparse-only %S/Inputs/getsymbols02-a.f90
11-
! RUN: %f18 -fparse-only %S/Inputs/getsymbols02-b.f90
12-
! RUN: %f18 -fget-symbols-sources -fparse-only %s 2>&1 | FileCheck %s
10+
! RUN: %f18 -fsyntax-only %S/Inputs/getsymbols02-a.f90
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! RUN: %f18 -fsyntax-only %S/Inputs/getsymbols02-b.f90
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! RUN: %f18 -fget-symbols-sources -fsyntax-only %s 2>&1 | FileCheck %s
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! CHECK: callget5: .{{[/\\]}}mm2b.mod,
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! CHECK: get5: .{{[/\\]}}mm2a.mod,

‎flang/test/Semantics/getsymbols03-a.f90

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x = f
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end program
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10-
! RUN: %f18 -fget-symbols-sources -fparse-only %s 2>&1 | FileCheck %s
10+
! RUN: %f18 -fget-symbols-sources -fsyntax-only %s 2>&1 | FileCheck %s
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! CHECK:f:{{.*}}getsymbols03-b.f90, 2, 12-13
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! CHECK:main:{{.*}}getsymbols03-a.f90, 4, 9-13
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! CHECK:mm3:{{.*}}getsymbols03-a.f90, 5, 6-9

‎flang/test/Semantics/getsymbols04.f90

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@@ -6,7 +6,7 @@ program main
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x = y
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end program
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9-
! RUN: %f18 -fget-symbols-sources -fparse-only %s 2>&1 | FileCheck %s
9+
! RUN: %f18 -fget-symbols-sources -fsyntax-only %s 2>&1 | FileCheck %s
1010
! CHECK:x:{{.*}}getsymbols04.f90, 3, 14-15
1111
! CHECK:x:{{.*}}getsymbols04.f90, 5, 11-12
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! CHECK:y:{{.*}}getsymbols04.f90, 4, 14-15

‎flang/test/Semantics/getsymbols05.f90

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x = y
1010
end program
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12-
! RUN: %f18 -fget-symbols-sources -fparse-only %s 2>&1 | FileCheck %s
12+
! RUN: %f18 -fget-symbols-sources -fsyntax-only %s 2>&1 | FileCheck %s
1313
! CHECK:x:{{.*}}getsymbols05.f90, 3, 14-15
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! CHECK:x:{{.*}}getsymbols05.f90, 6, 16-17
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! CHECK:y:{{.*}}getsymbols05.f90, 4, 14-15

‎flang/test/Semantics/missing_newline.f90

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! RUN: echo -n "end program" > %t.f90
2-
! RUN: %f18 -fparse-only %t.f90
2+
! RUN: %f18 -fsyntax-only %t.f90
33
! RUN: echo -ne "\rend program" > %t.f90
4-
! RUN: %f18 -fparse-only %t.f90
4+
! RUN: %f18 -fsyntax-only %t.f90

‎flang/test/Semantics/mod-file-rewriter.f90

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! RUN: rm -fr %t && mkdir %t && cd %t
2-
! RUN: %f18 -fparse-only -fdebug-module-writer %s 2>&1 | FileCheck %s --check-prefix CHECK_CHANGED
3-
! RUN: %f18 -fparse-only -fdebug-module-writer %s 2>&1 | FileCheck %s --check-prefix CHECK_UNCHANGED
4-
! RUN: %f18 -fparse-only -fdebug-module-writer %p/Inputs/mod-file-unchanged.f90 2>&1 | FileCheck %s --check-prefix CHECK_UNCHANGED
5-
! RUN: %f18 -fparse-only -fdebug-module-writer %p/Inputs/mod-file-changed.f90 2>&1 | FileCheck %s --check-prefix CHECK_CHANGED
2+
! RUN: %f18 -fsyntax-only -fdebug-module-writer %s 2>&1 | FileCheck %s --check-prefix CHECK_CHANGED
3+
! RUN: %f18 -fsyntax-only -fdebug-module-writer %s 2>&1 | FileCheck %s --check-prefix CHECK_UNCHANGED
4+
! RUN: %f18 -fsyntax-only -fdebug-module-writer %p/Inputs/mod-file-unchanged.f90 2>&1 | FileCheck %s --check-prefix CHECK_UNCHANGED
5+
! RUN: %f18 -fsyntax-only -fdebug-module-writer %p/Inputs/mod-file-changed.f90 2>&1 | FileCheck %s --check-prefix CHECK_CHANGED
66

77
module m
88
real :: x(10)

‎flang/test/Semantics/modifiable01.f90

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1-
! RUN: not %f18 -fparse-only %s 2>&1 | FileCheck %s
1+
! RUN: not %f18 -fsyntax-only %s 2>&1 | FileCheck %s
22
! Test WhyNotModifiable() explanations
33

44
module prot

‎flang/test/Semantics/offsets01.f90

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1-
!RUN: %f18 -fdebug-dump-symbols -fparse-only %s | FileCheck %s
1+
!RUN: %f18 -fdebug-dump-symbols -fsyntax-only %s | FileCheck %s
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! Size and alignment of intrinsic types
44
subroutine s1

‎flang/test/Semantics/offsets02.f90

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1-
!RUN: %f18 -fdebug-dump-symbols -fparse-only %s | FileCheck %s
1+
!RUN: %f18 -fdebug-dump-symbols -fsyntax-only %s | FileCheck %s
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! Size and alignment of derived types
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‎flang/test/Semantics/offsets03.f90

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1-
!RUN: %f18 -fdebug-dump-symbols -fparse-only %s | FileCheck %s
1+
!RUN: %f18 -fdebug-dump-symbols -fsyntax-only %s | FileCheck %s
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! Size and alignment with EQUIVALENCE and COMMON
44

‎flang/test/Semantics/oldparam01.f90

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1-
! RUN: %f18 -falternative-parameter-statement -fdebug-dump-symbols -fparse-only %s 2>&1 | FileCheck %s
1+
! RUN: %f18 -falternative-parameter-statement -fdebug-dump-symbols -fsyntax-only %s 2>&1 | FileCheck %s
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! Non-error tests for "old style" PARAMETER statements
44

‎flang/test/Semantics/oldparam02.f90

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@@ -1,4 +1,4 @@
1-
! RUN: not %f18 -falternative-parameter-statement -fdebug-dump-symbols -fparse-only %s 2>&1 | FileCheck %s
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! RUN: not %f18 -falternative-parameter-statement -fdebug-dump-symbols -fsyntax-only %s 2>&1 | FileCheck %s
22

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! Error tests for "old style" PARAMETER statements
44
subroutine subr(x1,x2,x3,x4,x5)

‎flang/test/Semantics/oldparam03.f90

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1-
! RUN: not %f18 -fparse-only %s 2>&1 | FileCheck %s
1+
! RUN: not %f18 -fsyntax-only %s 2>&1 | FileCheck %s
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! Ensure that old-style PARAMETER statements are disabled by default.
44

‎flang/test/Semantics/resolve100.f90

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1-
!RUN: %f18 -fdebug-dump-symbols -fparse-only %s | FileCheck %s
1+
!RUN: %f18 -fdebug-dump-symbols -fsyntax-only %s | FileCheck %s
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program p
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! CHECK: a size=4 offset=0: ObjectEntity type: LOGICAL(4)

‎flang/test/Semantics/rewrite01.f90

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@@ -1,4 +1,4 @@
1-
! RUN: %f18 -fparse-only -fdebug-dump-parse-tree %s 2>&1 | FileCheck %s
1+
! RUN: %f18 -fsyntax-only -fdebug-dump-parse-tree %s 2>&1 | FileCheck %s
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! Ensure that READ(CVAR) [, item-list] is corrected when CVAR is a
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! character variable so as to be a formatted read from the default
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! unit, not an unformatted read from an internal unit (which is not

‎flang/test/Semantics/test_errors.sh

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@@ -2,7 +2,7 @@
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# Compile a source file and check errors against those listed in the file.
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# Change the compiler by setting the F18 environment variable.
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5-
F18_OPTIONS="-fparse-only"
5+
F18_OPTIONS="-fsyntax-only"
66
srcdir=$(dirname $0)
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source $srcdir/common.sh
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[[ ! -f $src ]] && die "File not found: $src"

‎flang/test/Semantics/test_modfile.sh

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# Compile a source file and compare generated .mod files against expected.
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44
set -e
5-
F18_OPTIONS="-fdebug-resolve-names -fparse-only"
5+
F18_OPTIONS="-fdebug-resolve-names -fsyntax-only"
66
srcdir=$(dirname $0)
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source $srcdir/common.sh
88

‎flang/test/Semantics/typeinfo01.f90

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,4 @@
1-
!RUN: %f18 -fdebug-dump-symbols -fparse-only %s | FileCheck %s
1+
!RUN: %f18 -fdebug-dump-symbols -fsyntax-only %s | FileCheck %s
22
! Tests for derived type runtime descriptions
33

44
module m01

‎flang/tools/f18-parse-demo/f18-parse-demo.cpp

Lines changed: 5 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -87,7 +87,7 @@ struct DriverOptions {
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bool warnOnNonstandardUsage{false}; // -Mstandard
8888
bool warningsAreErrors{false}; // -Werror
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Fortran::parser::Encoding encoding{Fortran::parser::Encoding::LATIN_1};
90-
bool parseOnly{false};
90+
bool syntaxOnly{false};
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bool dumpProvenance{false};
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bool dumpCookedChars{false};
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bool dumpUnparse{false};
@@ -217,7 +217,7 @@ std::string CompileFortran(
217217
Fortran::common::LanguageFeature::BackslashEscapes));
218218
return {};
219219
}
220-
if (driver.parseOnly) {
220+
if (driver.syntaxOnly) {
221221
return {};
222222
}
223223

@@ -369,8 +369,8 @@ int main(int argc, char *const argv[]) {
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driver.dumpUnparse = true;
370370
} else if (arg == "-ftime-parse") {
371371
driver.timeParse = true;
372-
} else if (arg == "-fparse-only") {
373-
driver.parseOnly = true;
372+
} else if (arg == "-fparse-only" || arg == "-fsyntax-only") {
373+
driver.syntaxOnly = true;
374374
} else if (arg == "-c") {
375375
driver.compileOnly = true;
376376
} else if (arg == "-o") {
@@ -405,7 +405,7 @@ int main(int argc, char *const argv[]) {
405405
<< " -ed enable fixed form D lines\n"
406406
<< " -E prescan & preprocess only\n"
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<< " -ftime-parse measure parsing time\n"
408-
<< " -fparse-only parse only, no output except messages\n"
408+
<< " -fsyntax-only parse only, no output except messages\n"
409409
<< " -funparse parse & reformat only, no code "
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"generation\n"
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<< " -fdump-provenance dump the provenance table (no code)\n"

‎flang/tools/f18/CMakeLists.txt

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -46,7 +46,7 @@ foreach(filename ${MODULES})
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set(depends ${include}/__fortran_builtins.mod)
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endif()
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add_custom_command(OUTPUT ${include}/${filename}.mod
49-
COMMAND f18 -fparse-only -I${include}
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COMMAND f18 -fsyntax-only -I${include}
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${FLANG_SOURCE_DIR}/module/${filename}.f90
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WORKING_DIRECTORY ${include}
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DEPENDS f18 ${FLANG_SOURCE_DIR}/module/${filename}.f90 ${depends}

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