| /* Verify that if IP is saved to ensure stack alignment, we don't load |
| it into sp. */ |
| /* { dg-do compile { target arm*-*-* strongarm*-*-* xscale*-*-*} } */ |
| /* { dg-options "-O -mno-apcs-frame -mcpu=iwmmxt" } */ |
| /* { dg-final { global compiler_flags; if ![string match "*-mthumb *" $compiler_flags] { scan-assembler "ldmfd\[ ]sp!.*ip,\[ ]*pc" } } } */ |
| |
| /* This function uses all the call-saved registers, namely r4, r5, r6, |
| r7, r8, r9, sl, fp. Since we also save pc, that leaves an odd |
| number of registers, and the compiler will push ip to align the |
| stack. Make sure that we restore ip into ip, not into sp as is |
| done when using a frame pointer. The -mno-apcs-frame option |
| permits the frame pointer to be used as an ordinary register. */ |
| int |
| foo(int *a, int *b, int *c, int *d, int *tot) |
| { |
| int i, j, k, l, m, n, o; |
| |
| *tot = 0; |
| for (i = *a; i < *b; i += *c) |
| for (j = *a; j < *b; j += *d) |
| for (k = *a; k < *c; k += *d) |
| for (l = *b; k < *c; k += *d) |
| for (m = *d; k < *c; k += *b) |
| *tot += i + j + k + l + m; |
| return *tot; |
| } |
