diff options
author | Miod Vallat <miod@cvs.openbsd.org> | 2012-12-02 15:59:43 +0000 |
---|---|---|
committer | Miod Vallat <miod@cvs.openbsd.org> | 2012-12-02 15:59:43 +0000 |
commit | f38d3c401b3b964fbe8aabcc3d2dbe3466360e9f (patch) | |
tree | a979cbb20495250047456632855733458cfd2e53 /gnu | |
parent | 1e04758d74f8200f256788dc7721a93ae71e39ae (diff) |
m88k_layout_frame(): return early if the frame computations have already
been done.
Diffstat (limited to 'gnu')
-rw-r--r-- | gnu/usr.bin/gcc/gcc/config/m88k/m88k.c | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/gnu/usr.bin/gcc/gcc/config/m88k/m88k.c b/gnu/usr.bin/gcc/gcc/config/m88k/m88k.c index 086dfa9f265..60ce644f4b1 100644 --- a/gnu/usr.bin/gcc/gcc/config/m88k/m88k.c +++ b/gnu/usr.bin/gcc/gcc/config/m88k/m88k.c @@ -1838,6 +1838,9 @@ m88k_layout_frame () { int regno, sp_size; + if (frame_laid_out) + return; + frame_laid_out = 1; memset ((char *) &save_regs[0], 0, sizeof (save_regs)); @@ -1854,13 +1857,6 @@ m88k_layout_frame () if (write_symbols != NO_DEBUG && !TARGET_OCS_FRAME_POSITION) save_regs[1] = 1; - /* If there is a call, or we need a debug frame, r1 needs to be - saved as well. */ - if (regs_ever_live[1] || frame_pointer_needed) - { - save_regs[1] = 1; - } - /* If we are producing PIC, save the addressing base register and r1. */ if (flag_pic && current_function_uses_pic_offset_table) { @@ -1874,8 +1870,14 @@ m88k_layout_frame () a preserve register. */ if (frame_pointer_needed) save_regs[FRAME_POINTER_REGNUM] = save_regs[1] = 1; - else if (regs_ever_live[FRAME_POINTER_REGNUM]) - save_regs[FRAME_POINTER_REGNUM] = 1; + else + { + if (regs_ever_live[FRAME_POINTER_REGNUM]) + save_regs[FRAME_POINTER_REGNUM] = 1; + /* If there is a call, r1 needs to be saved as well. */ + if (regs_ever_live[1]) + save_regs[1] = 1; + } /* Figure out which extended register(s) needs to be saved. */ for (regno = FIRST_EXTENDED_REGISTER + 1; regno < FIRST_PSEUDO_REGISTER; @@ -1938,8 +1940,7 @@ null_prologue () { if (! reload_completed) return 0; - if (! frame_laid_out) - m88k_layout_frame (); + m88k_layout_frame (); return (! frame_pointer_needed && nregs == 0 && nxregs == 0 |