diff options
Diffstat (limited to 'gcc/ra.h')
| -rw-r--r-- | gcc/ra.h | 3 |
1 files changed, 3 insertions, 0 deletions
@@ -503,6 +503,9 @@ extern HARD_REG_SET never_use_colors; extern HARD_REG_SET usable_regs[N_REG_CLASSES]; /* For each class C the count of hardregs in usable_regs[C]. */ extern unsigned int num_free_regs[N_REG_CLASSES]; +/* For each class C which has num_free_regs[C]==1, the color of the + single register in that class, -1 otherwise. */ +extern int single_reg_in_regclass[N_REG_CLASSES]; /* For each mode M the hardregs, which are MODE_OK for M, and have enough space behind them to hold an M value. Additionally if reg R is OK for mode M, but it needs two hardregs, then R+1 will |