diff options
Diffstat (limited to 'gcc/fortran')
| -rw-r--r-- | gcc/fortran/ChangeLog | 8 | ||||
| -rw-r--r-- | gcc/fortran/invoke.texi | 20 | ||||
| -rw-r--r-- | gcc/fortran/lang.opt | 4 | ||||
| -rw-r--r-- | gcc/fortran/options.c | 3 |
4 files changed, 29 insertions, 6 deletions
diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog index e77a3a4..0e8de4b 100644 --- a/gcc/fortran/ChangeLog +++ b/gcc/fortran/ChangeLog @@ -1,3 +1,11 @@ +2019-10-30 Mark Eggleston <mark.eggleston@codethink.com> + + * invoke.texi: Add -Wno-overwrite-recursive to list of options. Add + description of -Wno-overwrite-recursive. Fix typo in description + of -Winteger-division. + * lang.opt: Add option -Woverwrite-recursive initialised as on. + * option.c (gfc_post_options): Output warning only if it is enabled. + 2019-10-28 Tobias Burnus <tobias@codesourcery.com> PR fortran/91863 diff --git a/gcc/fortran/invoke.texi b/gcc/fortran/invoke.texi index fa60eff..1d5cec1 100644 --- a/gcc/fortran/invoke.texi +++ b/gcc/fortran/invoke.texi @@ -149,10 +149,11 @@ and warnings}. -Wc-binding-type -Wcharacter-truncation -Wconversion @gol -Wdo-subscript -Wfunction-elimination -Wimplicit-interface @gol -Wimplicit-procedure -Wintrinsic-shadow -Wuse-without-only @gol --Wintrinsics-std -Wline-truncation -Wno-align-commons -Wno-tabs @gol --Wreal-q-constant -Wsurprising -Wunderflow -Wunused-parameter @gol --Wrealloc-lhs -Wrealloc-lhs-all -Wfrontend-loop-interchange @gol --Wtarget-lifetime -fmax-errors=@var{n} -fsyntax-only -pedantic @gol +-Wintrinsics-std -Wline-truncation -Wno-align-commons @gol +-Wno-overwrite-recursive -Wno-tabs -Wreal-q-constant -Wsurprising @gol +-Wunderflow -Wunused-parameter -Wrealloc-lhs -Wrealloc-lhs-all @gol +-Wfrontend-loop-interchange -Wtarget-lifetime -fmax-errors=@var{n} @gol +-fsyntax-only -pedantic @gol -pedantic-errors @gol } @@ -989,7 +990,7 @@ nor has been declared as @code{EXTERNAL}. @opindex @code{Winteger-division} @cindex warnings, integer division @cindex warnings, division of integers -Warn if a constant integer division truncates it result. +Warn if a constant integer division truncates its result. As an example, 3/5 evaluates to 0. @item -Wintrinsics-std @@ -1002,6 +1003,15 @@ it as @code{EXTERNAL} procedure because of this. @option{-fall-intrinsics} can be used to never trigger this behavior and always link to the intrinsic regardless of the selected standard. +@item -Wno-overwrite-recursive +@opindex @code{Woverwrite-recursive} +@cindex warnings, overwrite recursive +Do not warn when @option{-fno-automatic} is used with @option{-frecursive}. Recursion +will be broken if the relevant local variables do not have the attribute +@code{AUTOMATIC} explicitly declared. This option can be used to suppress the warning +when it is known that recursion is not broken. Useful for build environments that use +@option{-Werror}. + @item -Wreal-q-constant @opindex @code{Wreal-q-constant} @cindex warnings, @code{q} exponent-letter diff --git a/gcc/fortran/lang.opt b/gcc/fortran/lang.opt index 2cfc76d..35b1206 100644 --- a/gcc/fortran/lang.opt +++ b/gcc/fortran/lang.opt @@ -289,6 +289,10 @@ Wopenmp-simd Fortran ; Documented in C +Woverwrite-recursive +Fortran Warning Var(warn_overwrite_recursive) Init(1) +Warn that -fno-automatic may break recursion. + Wpedantic Fortran ; Documented in common.opt diff --git a/gcc/fortran/options.c b/gcc/fortran/options.c index 771c10e..c875ec1 100644 --- a/gcc/fortran/options.c +++ b/gcc/fortran/options.c @@ -409,7 +409,8 @@ gfc_post_options (const char **pfilename) gfc_warning_now (0, "Flag %<-fno-automatic%> overwrites %<-fmax-stack-var-size=%d%>", flag_max_stack_var_size); else if (!flag_automatic && flag_recursive) - gfc_warning_now (0, "Flag %<-fno-automatic%> overwrites %<-frecursive%>"); + gfc_warning_now (OPT_Woverwrite_recursive, "Flag %<-fno-automatic%> " + "overwrites %<-frecursive%>"); else if (!flag_automatic && flag_openmp) gfc_warning_now (0, "Flag %<-fno-automatic%> overwrites %<-frecursive%> implied by " "%<-fopenmp%>"); |