+2016-03-01 Eric Botcazou <ebotcazou@adacore.com>
+
+ PR ada/70017
+ * ira.c (do_reload): Issue warning for generic stack checking here...
+ * reload1.c (reload): ...instead of here and streamline it.
+
2016-03-01 Nick Clifton <nickc@redhat.com>
* config.gcc (cr16-*-elf): Add newlib-stdint.h to tm_file.
{
df_set_flags (DF_NO_INSN_RESCAN);
build_insn_chain ();
-
- need_dce = reload (get_insns (), ira_conflicts_p);
+ need_dce = reload (get_insns (), ira_conflicts_p);
}
timevar_pop (TV_RELOAD);
inform (DECL_SOURCE_LOCATION (decl), "for %qD", decl);
}
+ /* If we are doing generic stack checking, give a warning if this
+ function's frame size is larger than we expect. */
+ if (flag_stack_check == GENERIC_STACK_CHECK)
+ {
+ HOST_WIDE_INT size = get_frame_size () + STACK_CHECK_FIXED_FRAME_SIZE;
+
+ for (int i = 0; i < FIRST_PSEUDO_REGISTER; i++)
+ if (df_regs_ever_live_p (i) && !fixed_regs[i] && call_used_regs[i])
+ size += UNITS_PER_WORD;
+
+ if (size > STACK_CHECK_MAX_FRAME_SIZE)
+ warning (0, "frame size too large for reliable stack checking");
+ }
+
if (pic_offset_table_regno != INVALID_REGNUM)
pic_offset_table_rtx = gen_rtx_REG (Pmode, pic_offset_table_regno);
}
}
- /* If we are doing generic stack checking, give a warning if this
- function's frame size is larger than we expect. */
- if (flag_stack_check == GENERIC_STACK_CHECK)
- {
- HOST_WIDE_INT size = get_frame_size () + STACK_CHECK_FIXED_FRAME_SIZE;
- static int verbose_warned = 0;
-
- for (i = 0; i < FIRST_PSEUDO_REGISTER; i++)
- if (df_regs_ever_live_p (i) && ! fixed_regs[i] && call_used_regs[i])
- size += UNITS_PER_WORD;
-
- if (size > STACK_CHECK_MAX_FRAME_SIZE)
- {
- warning (0, "frame size too large for reliable stack checking");
- if (! verbose_warned)
- {
- warning (0, "try reducing the number of local variables");
- verbose_warned = 1;
- }
- }
- }
-
free (temp_pseudo_reg_arr);
/* Indicate that we no longer have known memory locations or constants. */
+2016-02-29 Eric Botcazou <ebotcazou@adacore.com>
+
+ * gcc.dg/pr70017.c: New test.
+
2016-03-01 Jakub Jelinek <jakub@redhat.com>
PR c/69796
--- /dev/null
+/* { dg-do compile } */
+/* { dg-options "-fstack-check=generic" } */
+
+/* Check that the expected warning is issued for large frames. */
+
+#define ONE(s) char a##s[32];
+#define TEN(s) ONE(s##0) ONE(s##1) ONE(s##2) ONE(s##3) ONE(s##4) \
+ ONE(s##5) ONE(s##6) ONE(s##7) ONE(s##8) ONE(s##9)
+#define HUNDRED(s) TEN(s##0) TEN(s##1) TEN(s##2) TEN(s##3) TEN(s##4) \
+ TEN(s##5) TEN(s##6) TEN(s##7) TEN(s##8) TEN(s##9)
+
+void foo(void)
+{
+ HUNDRED(a)
+ HUNDRED(b)
+} /* { dg-warning "frame size too large for reliable stack checking" } */