From 413ac1b28d3047fca4931f002ffa5a5dded32a2c Mon Sep 17 00:00:00 2001 From: Richard Sandiford Date: Thu, 18 Jan 2007 19:51:47 +0000 Subject: [PATCH] m68k.c (m68k_use_return_insn): Update comments before function. gcc/ * config/m68k/m68k.c (m68k_use_return_insn): Update comments before function. Extend register save check to include all registers, not just integer ones. From-SVN: r120927 --- gcc/ChangeLog | 6 ++++++ gcc/config/m68k/m68k.c | 7 +++---- 2 files changed, 9 insertions(+), 4 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index bea01b05297..f7d4ef0aa56 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2007-01-18 Richard Sandiford + + * config/m68k/m68k.c (m68k_use_return_insn): Update comments + before function. Extend register save check to include all + registers, not just integer ones. + 2007-01-18 Kazu Hirata * config/m68k/m68k-protos.h (use_return_insn): Rename to... diff --git a/gcc/config/m68k/m68k.c b/gcc/config/m68k/m68k.c index 1bfa6867cd5..a2f9f015c87 100644 --- a/gcc/config/m68k/m68k.c +++ b/gcc/config/m68k/m68k.c @@ -1019,7 +1019,8 @@ m68k_output_function_prologue (FILE *stream, } } -/* Return true if this function's epilogue can be output as RTL. */ +/* Return true if a simple (return) instruction is sufficient for this + instruction (i.e. if no epilogue is needed). */ bool m68k_use_return_insn (void) @@ -1027,10 +1028,8 @@ m68k_use_return_insn (void) if (!reload_completed || frame_pointer_needed || get_frame_size () != 0) return false; - /* We can output the epilogue as RTL only if no registers need to be - restored. */ m68k_compute_frame_layout (); - return current_frame.reg_no ? false : true; + return current_frame.offset == 0; } /* This function generates the assembly code for function exit,