diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/tree-ssa/20030530-2.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/20030530-2.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/20030530-2.c b/gcc/testsuite/gcc.dg/tree-ssa/20030530-2.c new file mode 100644 index 00000000000..408e2464e96 --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/20030530-2.c @@ -0,0 +1,26 @@ +/* { dg-do compile } */ +/* { dg-options "-O1 -fdump-tree-dom3" } */ + + +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); +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 "dom3"} } */ + +/* 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 "dom3"} } */ + + |