| /* { dg-do compile } */ |
| /* { dg-options "-O1 -fdump-tree-dom2" } */ |
| |
| |
| typedef struct rs6000_stack { |
| int first_gp_reg_save; |
| } rs6000_stack_t; |
| extern char regs_ever_live[113]; |
| extern rs6000_stack_t *rs6000_stack_info (void); |
| extern void gen_rtx_REG (int); |
| void |
| rs6000_emit_prologue (int i, rs6000_stack_t *info) |
| { |
| if (regs_ever_live[info->first_gp_reg_save + i] || i+info->first_gp_reg_save) |
| gen_rtx_REG (info->first_gp_reg_save + i); |
| } |
| |
| /* There should be precisely one load of first_gp_reg_save. If there is |
| more than one, then the dominator optimizations failed. */ |
| /* { dg-final { scan-tree-dump-times "first_gp_reg_save" 1 "dom2"} } */ |
| |
| /* There should be precisely one addition. If there is more than one, then |
| the dominator optimizations failed, most likely due to not handling |
| commutative operands correctly. */ |
| /* { dg-final { scan-tree-dump-times "\\+" 1 "dom2"} } */ |
| |
| |
