ce94d12f67
* gcc.c-torture/execute/stdio-opt-1.c: Test __builtin_ style too. * gcc.c-torture/execute/stdio-opt-2.c: Likewise. * gcc.c-torture/execute/string-opt-1.c: Likewise. * gcc.c-torture/execute/string-opt-2.c: Likewise. * gcc.c-torture/execute/string-opt-3.c: Likewise. * gcc.c-torture/execute/string-opt-4.c: Likewise. * gcc.c-torture/execute/string-opt-6.c: Likewise. * gcc.c-torture/execute/string-opt-7.c: Likewise. * gcc.c-torture/execute/string-opt-8.c: Likewise. * gcc.c-torture/execute/string-opt-9.c: Likewise. * gcc.c-torture/execute/string-opt-10.c: Likewise. * gcc.c-torture/execute/string-opt-11.c: Likewise. * gcc.c-torture/execute/string-opt-12.c: Likewise. * gcc.c-torture/execute/string-opt-3.c: Test rindex. * gcc.c-torture/execute/string-opt-4.c: Test index. From-SVN: r38497
63 lines
1.6 KiB
C
63 lines
1.6 KiB
C
/* Copyright (C) 2000 Free Software Foundation.
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Ensure all expected transformations of builtin fputs occur and that
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we honor side effects in the stream argument.
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Written by Kaveh R. Ghazi, 10/30/2000. */
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#include <stdio.h>
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extern void abort(void);
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/* Declare this without args because that's what gcc does internally.
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We want to make sure it works without a helpful prototype from us.
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If stdio.h provides one, that is okay. */
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extern int fputs();
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int main()
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{
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FILE *s_array[] = {stdout, NULL}, **s_ptr = s_array;
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const char *const s1 = "hello world";
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fputs ("", *s_ptr);
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fputs ("\n", *s_ptr);
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fputs ("bye", *s_ptr);
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fputs (s1, *s_ptr);
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fputs (s1+5, *s_ptr);
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fputs (s1+10, *s_ptr);
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fputs (s1+11, *s_ptr);
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/* Check side-effects when transforming fputs -> NOP. */
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fputs ("", *s_ptr++);
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if (s_ptr != s_array+1 || *s_ptr != 0)
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abort();
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/* Check side-effects when transforming fputs -> fputc. */
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s_ptr = s_array;
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fputs ("\n", *s_ptr++);
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if (s_ptr != s_array+1 || *s_ptr != 0)
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abort();
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/* Check side-effects when transforming fputs -> fwrite. */
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s_ptr = s_array;
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fputs ("hello\n", *s_ptr++);
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if (s_ptr != s_array+1 || *s_ptr != 0)
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abort();
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/* Test at least one instance of the __builtin_ style. We do this
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to ensure that it works and that the prototype is correct. */
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s_ptr = s_array;
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__builtin_fputs ("", *s_ptr);
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return 0;
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}
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#ifdef __OPTIMIZE__
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/* When optimizing, all the above cases should be transformed into
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something else. So any remaining calls to the original function
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should abort. */
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static int
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fputs(const char *string, FILE *stream)
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{
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abort();
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}
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#endif
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