| /* Check that GCC does not generates Armv8.1-M low over head loop |
| instructions. Innermost loop has no fixed number of iterations |
| therefore is not optimizable. Outer loops are not optimized. */ |
| /* { dg-do compile } */ |
| /* { dg-skip-if "avoid conflicting multilib options" { *-*-* } { "-marm" "-mcpu=*" } } */ |
| /* { dg-options "-march=armv8.1-m.main+fp -mthumb -O3 --save-temps" } */ |
| #include <stdlib.h> |
| #include "lob.h" |
| |
| int a[N]; |
| int b[N]; |
| int c[N]; |
| |
| int |
| main (void) |
| { |
| for (int i = 0; i < N; i++) |
| { |
| a[i] = i; |
| b[i] = i * 2; |
| |
| int k = b[i]; |
| while (k != 0) |
| { |
| if (k % 2 == 0) |
| c[i - 1] = k % 2; |
| k /= 2; |
| } |
| c[i] = a[i] - b[i]; |
| } |
| |
| return 0; |
| } |
| /* { dg-final { scan-assembler-not {dls\s\S*,\s\S*} } } */ |
| /* { dg-final { scan-assembler-not {le\slr,\s\S*} } } */ |
