diff options
Diffstat (limited to 'gcc/config/arm/arm.c')
| -rw-r--r-- | gcc/config/arm/arm.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c index 20ae697..3a8d993 100644 --- a/gcc/config/arm/arm.c +++ b/gcc/config/arm/arm.c @@ -8648,10 +8648,14 @@ arm_compute_initial_elimination_offset (from, to) reg_mask = reg_mask & ~ (reg_mask & - reg_mask); } - if (regs_ever_live[LR_REGNUM] - /* If a stack frame is going to be created, the LR will - be saved as part of that, so we do not need to allow - for it here. */ + if ((regs_ever_live[LR_REGNUM] + /* If optimizing for size, then we save the link register if + any other integer register is saved. This gives a smaller + return sequence. */ + || (optimize_size && call_saved_registers > 0)) + /* But if a stack frame is going to be created, the LR will + be saved as part of that, so we do not need to allow for + it here. */ && ! frame_pointer_needed) call_saved_registers += 4; |