PR fortran/98411 - Pointless warning for static variables
Variables with explicit SAVE attribute cannot end up on the stack. There is no point in checking whether they should be moved off the stack to static storage. gcc/fortran/ChangeLog: PR fortran/98411 * trans-decl.c (gfc_finish_var_decl): Add check for explicit SAVE attribute. gcc/testsuite/ChangeLog: PR fortran/98411 * gfortran.dg/pr98411.f90: New test.
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@ -738,6 +738,7 @@ gfc_finish_var_decl (tree decl, gfc_symbol * sym)
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/* Keep variables larger than max-stack-var-size off stack. */
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if (!(sym->ns->proc_name && sym->ns->proc_name->attr.recursive)
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&& !sym->attr.automatic
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&& sym->attr.save != SAVE_EXPLICIT
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&& INTEGER_CST_P (DECL_SIZE_UNIT (decl))
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&& !gfc_can_put_var_on_stack (DECL_SIZE_UNIT (decl))
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/* Put variable length auto array pointers always into stack. */
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@ -0,0 +1,16 @@
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! { dg-do compile }
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! { dg-options "-Wall -fautomatic -fmax-stack-var-size=100" }
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! PR fortran/98411 - Pointless warning for static variables
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module try
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implicit none
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integer, save :: a(1000)
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contains
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subroutine initmodule
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real, save :: b(1000)
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logical :: c(1000) ! { dg-warning "moved from stack to static storage" }
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a(1) = 42
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b(2) = 3.14
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c(3) = .true.
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end subroutine initmodule
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end module try
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