| /* { dg-do compile } */ | |
| /* { dg-options "-O2 -funswitch-loops -fdump-tree-unswitch-all" } */ | |
| #include <stdlib.h> | |
| #define N 32 | |
| float *foo(int ustride, int size, float *src) | |
| { | |
| float *buffer, *p; | |
| int i, k; | |
| if (!src) | |
| return NULL; | |
| buffer = (float *) malloc(N * size * sizeof(float)); | |
| if(buffer) | |
| for(i=0, p=buffer; i<N; i++, src+=ustride) | |
| for(k=0; k<size; k++) | |
| *p++ = src[k]; | |
| return buffer; | |
| } | |
| /* { dg-final { scan-tree-dump-times "Guard hoisted" 1 "unswitch" } } */ |