diff options
Diffstat (limited to 'gcc/flow.c')
-rw-r--r-- | gcc/flow.c | 6 |
1 files changed, 3 insertions, 3 deletions
@@ -3368,14 +3368,14 @@ calculate_global_regs_live (blocks_in, blocks_out, flags) IOR_REG_SET (new_live_at_end, sb->global_live_at_start); } + /* The all-important stack pointer must always be live. */ + SET_REGNO_REG_SET (new_live_at_end, STACK_POINTER_REGNUM); + /* Before reload, there are a few registers that must be forced live everywhere -- which might not already be the case for blocks within infinite loops. */ if (! reload_completed) { - /* The all-important stack pointer. */ - SET_REGNO_REG_SET (new_live_at_end, STACK_POINTER_REGNUM); - /* Any reference to any pseudo before reload is a potential reference of the frame pointer. */ SET_REGNO_REG_SET (new_live_at_end, FRAME_POINTER_REGNUM); |