From: Takayuki 'January June' Suwa <jjsuwa_sys3...@yahoo.co.jp> gcc/ChangeLog:
* config/xtensa/xtensa.cc (xtensa_expand_prologue): Modify to exit the inspection loops as soon as the necessity of stack pointer is found. --- gcc/config/xtensa/xtensa.cc | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/gcc/config/xtensa/xtensa.cc b/gcc/config/xtensa/xtensa.cc index 178d16a78462..709b0d52d069 100644 --- a/gcc/config/xtensa/xtensa.cc +++ b/gcc/config/xtensa/xtensa.cc @@ -3327,12 +3327,18 @@ xtensa_expand_prologue (void) ref; ref = DF_REF_NEXT_REG (ref)) if (DF_REF_CLASS (ref) == DF_REF_REGULAR && NONJUMP_INSN_P (DF_REF_INSN (ref))) - stack_pointer_needed = true; + { + stack_pointer_needed = true; + break; + } /* Check if callee-saved registers really need saving to the stack. */ if (!stack_pointer_needed) for (regno = 0; regno < FIRST_PSEUDO_REGISTER; ++regno) if (xtensa_call_save_reg (regno)) - stack_pointer_needed = true; + { + stack_pointer_needed = true; + break; + } cfun->machine->inhibit_logues_a1_adjusts = !stack_pointer_needed; -- 2.30.2