51 lines
874 B
C
51 lines
874 B
C
/* dg-do run */
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/* dg-options "-O2" */
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/* PR target/20126 was not really target-specific, but rather a loop's
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failure to take into account the possibility that a DEST_ADDR giv
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replacement might fail, such as when you attempt to replace a REG
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with a PLUS in one of the register_operands of cmpstrqi_rex_1. */
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extern void abort (void);
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typedef struct { int a; char b[3]; } S;
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S c = { 2, "aa" }, d = { 2, "aa" };
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void *
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bar (const void *x, int y, int z)
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{
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return (void *) 0;
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}
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int
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foo (S *x, S *y)
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{
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const char *e, *f, *g;
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int h;
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h = y->a;
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f = y->b;
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e = x->b;
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if (h == 1)
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return bar (e, *f, x->a) != 0;
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g = e + x->a - h;
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while (e <= g)
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{
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const char *t = e + 1;
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if (__builtin_memcmp (e, f, h) == 0)
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return 1;
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e = t;
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}
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return 0;
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}
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int
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main (void)
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{
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if (foo (&c, &d) != 1)
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abort ();
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return 0;
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}
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