view gcc/testsuite/gcc.dg/Wvla-larger-than-4.c @ 19:2b5abeee2509 default tip

update gcc11
author anatofuz
date Mon, 25 May 2020 07:50:57 +0900
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/* PR middle-end/94004 - missing -Walloca on calls to alloca due
   to -Wno-system-headers
   { dg-do compile }
   { dg-options "-O2 -Wall -Wvla-larger-than=31 -ftrack-macro-expansion=0" }
   { dg-require-effective-target alloca } */

void sink (void*, ...);

static inline void inline_use_vla (unsigned n)
{
  if (n > 32)
    n = 32;
  char a[n];                  // { dg-warning "\\\[-Wvla-larger-than" }
  sink (a, 2);
}

static inline void use_inlined_vla (unsigned n)
{
  inline_use_vla (n);         // this call is okay
  inline_use_vla (n + 1);     // this one is not
}

void call_inline (void)
{
  use_inlined_vla (31);
}

/* Verify that the inlining context is included and that it points
   to the correct line number in the inlined function:
   { dg-message "function 'inline_use_vla'..*inlined from 'call_inline' .*:20:" "" { target *-*-* } 0 }  */