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(expand_decl): If stack checking, use alloca for large vars.

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From-SVN: r14472
This commit is contained in:
Richard Kenner 1997-07-17 11:26:30 -04:00
parent 76e0d2113d
commit 5e4ef18a2b
1 changed files with 5 additions and 1 deletions
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6
gcc/stmt.c
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@ -3573,7 +3573,11 @@ expand_decl (decl)
/ BITS_PER_UNIT));
}
else if (TREE_CODE (DECL_SIZE (decl)) == INTEGER_CST)
else if (TREE_CODE (DECL_SIZE (decl)) == INTEGER_CST
&& ! (flag_stack_check && ! STACK_CHECK_BUILTIN
&& (TREE_INT_CST_HIGH (DECL_SIZE (decl)) != 0
|| (TREE_INT_CST_LOW (DECL_SIZE (decl))
> STACK_CHECK_MAX_VAR_SIZE * BITS_PER_UNIT))))
{
/* Variable of fixed size that goes on the stack. */
rtx oldaddr = 0;