| /* { dg-do compile } */ |
| /* We don't (and don't want to) perform this optimisation on soft-float |
| targets, where each addition is a library call. */ |
| /* { dg-require-effective-target hard_float } */ |
| /* { dg-options "-O2 -fno-tree-loop-vectorize -funroll-loops --fast-math -fvariable-expansion-in-unroller -fdump-rtl-loop2_unroll" } */ |
| |
| extern void abort (void); |
| |
| float array[30] = { 1,2,3,4,5,6,7,8,9,10 }; |
| |
| int foo (int n) |
| { |
| unsigned i; |
| float accum = 1.0; |
| |
| for (i = 0; i < n; i++) |
| accum += array[i]; |
| |
| return accum; |
| } |
| |
| int main (void) |
| { |
| return foo (10); |
| } |
| |
| /* { dg-final { scan-rtl-dump "Expanding Accumulator" "loop2_unroll" } } */ |
| /* { dg-final { cleanup-rtl-dump "loop*" } } */ |
