40 lines
678 B
C
40 lines
678 B
C
/* PR27363. CSE was breaking on the arm store multiple insn used for
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structure copies. */
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/* { dg-do run } */
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/* { dg-options "-Os" } */
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extern void abort (void);
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struct snd_mask {
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unsigned int bits[6];
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};
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static int __attribute__((noinline))
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snd_mask_refine(struct snd_mask *mask)
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{
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struct snd_mask old;
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old = *mask;
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if (mask->bits[0]==0 && mask->bits[1]==0)
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return 1;
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return old.bits[0] != mask->bits[0];
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}
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int main(int argc, char *argv[])
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{
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struct snd_mask mask;
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mask.bits[0] = 23;
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mask.bits[1] = 42;
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mask.bits[2] = 0;
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mask.bits[3] = 0;
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mask.bits[4] = 0;
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mask.bits[5] = 0;
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if (snd_mask_refine(&mask))
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abort();
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return 0;
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}
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