| /* { dg-do compile } */ |
| /* { dg-options "-O2 -fdump-tree-dom2 -w" } */ |
| |
| struct rtx_def; |
| typedef struct rtx_def *rtx; |
| struct reload |
| { |
| rtx in; |
| rtx reg_rtx; |
| }; |
| extern struct reload rld[(2 * 30 * (2 + 1))]; |
| static rtx find_dummy_reload (rtx); |
| extern int frob (); |
| extern int arf (); |
| int |
| push_reload (rtx in, rtx out |
| ) |
| { |
| int i; |
| if (out != 0 && in != out) |
| { |
| rld[i].reg_rtx = find_dummy_reload (out); |
| if (rld[i].reg_rtx == out) |
| rld[i].in = out; |
| } |
| } |
| rtx |
| find_dummy_reload (rtx real_out) |
| { |
| unsigned int nwords = frob (); |
| unsigned int regno = frob (); |
| unsigned int i; |
| for (i = 0; i < nwords; i++) |
| if (arf ()) |
| break; |
| if (i == nwords) |
| return real_out; |
| return 0; |
| } |
| |
| /* In the case where the call to find_dummy_reload returns 0, |
| the final test in push_reload will never be true and it will |
| be eliminated. */ |
| /* { dg-final { scan-tree-dump-not "out_\[^\n\r]+ == 0" "dom2"} } */ |
