36 lines
654 B
C
36 lines
654 B
C
/* Test that the compiler properly optimizes vector rotate instructions vector
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into prot on XOP systems. */
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/* { dg-do compile } */
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/* { dg-require-effective-target lp64 } */
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/* { dg-options "-O2 -mxop -ftree-vectorize" } */
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extern void exit (int);
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typedef long __m128i __attribute__ ((__vector_size__ (16), __may_alias__));
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#define SIZE 10240
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union {
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__m128i i_align;
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unsigned u32[SIZE];
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} a, b, c;
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void
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left_rotate32 (void)
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{
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int i;
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for (i = 0; i < SIZE; i++)
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a.u32[i] = (b.u32[i] << ((sizeof (int) * 8) - 4)) | (b.u32[i] >> 4);
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}
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int
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main ()
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{
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left_rotate32 ();
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exit (0);
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}
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/* { dg-final { scan-assembler "vprotd" } } */
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