76 lines
1.9 KiB
C
76 lines
1.9 KiB
C
/* Must define:
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int expect_error;
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void test ();
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void setup () NOCHECK; */
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#include "driver.h"
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/* Test permissions of BLKmode arguments constructed purely on the
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stack.
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Maybe we can't guarantee that we'll always wind up with stack args,
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but if we don't, they're in registers, and permissions should just
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always yield success. So while this test may not be effective on
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all platforms, failure probably does indicate a real bug.
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Note that because of the implementation, we do want to test BLKmode
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arguments that live purely on the stack and are constructed there.
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We want to test other situations of function arguments, of course,
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but don't assume this case would be covered by using one monster
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argument that is read from memory (including using constructor
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syntax but constant values), or may live partially in registers. */
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int expect_error = 0;
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/* Must be BLKmode. Using only two fields gets TImode on Alpha. */
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struct S
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{
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unsigned long long ll;
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long xx;
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long yy;
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};
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unsigned long long x = 0x12345689ULL;
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#define I2 42
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static int first_time = 1;
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/* Leading ten arguments force struct S onto the stack on both Alpha and MIPS. */
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int
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foo (int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8, int a9, int a10,
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struct S s)
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{
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if (a1 != 1 || a2 != 2 || a3 != 3 || a4 != 4 || a5 != 5 || a6 != 6 || a7 != 7
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|| a8 != 8 || a9 !=9 || a10 != 10)
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abort ();
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if (first_time)
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{
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if (s.ll != x || s.xx != I2 || s.yy != 0)
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abort ();
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first_time = 0;
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}
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else
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{
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if (s.ll != 0 || s.xx != 0 || s.yy != 0)
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abort ();
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}
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return 0;
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}
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void
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test ()
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{
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foo (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, (struct S) { x, I2 });
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foo (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, (struct S) { 0 });
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}
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void
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setup () /* NOCHECK */
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{
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mark_region (&x, sizeof (x), ACCESS_RO);
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mark_region (&first_time, sizeof (first_time), ACCESS_RW);
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}
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