93 lines
2.2 KiB
C
93 lines
2.2 KiB
C
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/* { dg-do run } */
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/* { dg-options "-O3 -save-temps" } */
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#include <stdint.h>
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#include <string.h>
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#pragma GCC target "+nosve"
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#define ARR_SIZE 1024
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/* Should produce an uaddl */
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void uadd_opt (uint32_t *foo, uint16_t *a, uint16_t *b)
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{
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for( int i = 0; i < ARR_SIZE - 3;i=i+4)
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{
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foo[i] = a[i] + b[i];
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foo[i+1] = a[i+1] + b[i+1];
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foo[i+2] = a[i+2] + b[i+2];
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foo[i+3] = a[i+3] + b[i+3];
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}
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}
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__attribute__((optimize (0)))
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void uadd_nonopt (uint32_t *foo, uint16_t *a, uint16_t *b)
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{
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for( int i = 0; i < ARR_SIZE - 3;i=i+4)
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{
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foo[i] = a[i] + b[i];
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foo[i+1] = a[i+1] + b[i+1];
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foo[i+2] = a[i+2] + b[i+2];
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foo[i+3] = a[i+3] + b[i+3];
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}
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}
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/* Should produce an saddl */
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void sadd_opt (int32_t *foo, int16_t *a, int16_t *b)
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{
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for( int i = 0; i < ARR_SIZE - 3;i=i+4)
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{
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foo[i] = a[i] + b[i];
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foo[i+1] = a[i+1] + b[i+1];
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foo[i+2] = a[i+2] + b[i+2];
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foo[i+3] = a[i+3] + b[i+3];
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}
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}
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__attribute__((optimize (0)))
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void sadd_nonopt (int32_t *foo, int16_t *a, int16_t *b)
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{
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for( int i = 0; i < ARR_SIZE - 3;i=i+4)
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{
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foo[i] = a[i] + b[i];
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foo[i+1] = a[i+1] + b[i+1];
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foo[i+2] = a[i+2] + b[i+2];
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foo[i+3] = a[i+3] + b[i+3];
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}
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}
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void __attribute__((optimize (0)))
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init(uint16_t *a, uint16_t *b)
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{
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for( int i = 0; i < ARR_SIZE;i++)
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{
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a[i] = i;
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b[i] = 2*i;
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}
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}
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int __attribute__((optimize (0)))
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main()
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{
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uint32_t foo_arr[ARR_SIZE];
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uint32_t bar_arr[ARR_SIZE];
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uint16_t a[ARR_SIZE];
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uint16_t b[ARR_SIZE];
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init(a, b);
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uadd_opt(foo_arr, a, b);
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uadd_nonopt(bar_arr, a, b);
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if (memcmp(foo_arr, bar_arr, ARR_SIZE) != 0)
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return 1;
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sadd_opt((int32_t*) foo_arr, (int16_t*) a, (int16_t*) b);
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sadd_nonopt((int32_t*) bar_arr, (int16_t*) a, (int16_t*) b);
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if (memcmp(foo_arr, bar_arr, ARR_SIZE) != 0)
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return 1;
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return 0;
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}
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/* { dg-final { scan-assembler-times {\tuaddl\t} 1} } */
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/* { dg-final { scan-assembler-times {\tuaddl2\t} 1} } */
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/* { dg-final { scan-assembler-times {\tsaddl\t} 1} } */
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/* { dg-final { scan-assembler-times {\tsaddl2\t} 1} } */
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