29 lines
671 B
C
29 lines
671 B
C
/* { dg-do compile } */
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/* We don't (and don't want to) perform this optimisation on soft-float
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targets, where each addition is a library call. */
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/* { dg-require-effective-target hard_float } */
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/* { dg-options "-O2 -funroll-loops --fast-math -fvariable-expansion-in-unroller -fdump-rtl-loop2_unroll" } */
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extern void abort (void);
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float array[10] = { 1,2,3,4,5,6,7,8,9,10 };
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int foo (int n)
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{
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unsigned i;
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float accum = 1.0;
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for (i = 0; i < n; i++)
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accum += array[i];
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return accum;
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}
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int main (void)
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{
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return foo (10);
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}
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/* { dg-final { scan-rtl-dump "Expanding Accumulator" "loop2_unroll" } } */
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/* { dg-final { cleanup-rtl-dump "loop*" } } */
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