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| author | Richard Kenner <kenner@gcc.gnu.org> | 1994-11-10 19:11:24 -0500 |
|---|---|---|
| committer | Richard Kenner <kenner@gcc.gnu.org> | 1994-11-10 19:11:24 -0500 |
| commit | 90140103513f22c46dadc4a8e656a41ca80ccfb9 (patch) | |
| tree | 8f68e38b7a5720ac4060fa2aafb4d291f88f9d8d | |
| parent | 931493c6b26bf46d23d9a746d2bb58237e0e436b (diff) | |
| download | gcc-90140103513f22c46dadc4a8e656a41ca80ccfb9.zip gcc-90140103513f22c46dadc4a8e656a41ca80ccfb9.tar.gz gcc-90140103513f22c46dadc4a8e656a41ca80ccfb9.tar.bz2 | |
(FUNCTION_{PRO,EPI}LOGUE): Add code to adjust stack when no frame
pointer.
From-SVN: r8415
| -rw-r--r-- | gcc/config/m68k/crds.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/gcc/config/m68k/crds.h b/gcc/config/m68k/crds.h index 2799a4e..edcacdf 100644 --- a/gcc/config/m68k/crds.h +++ b/gcc/config/m68k/crds.h @@ -493,6 +493,18 @@ do { int i; \ fprintf (FILE, "\tlink a6,$%d\n", -fsize); \ else \ fprintf (FILE, "\tlink a6,$0\n\tsubl $%d,sp\n", fsize); } \ + else if (fsize) \ + { \ + /* Adding negative number is faster on the 68040. */ \ + if (fsize + 4 < 0x8000) \ + { \ + fprintf (FILE, "\tadd.w #%d,sp\n", - (fsize + 4)); \ + } \ + else \ + { \ + fprintf (FILE, "\tadd.l #%d,sp\n", - (fsize + 4)); \ + } \ + } \ for (regno = 24; regno < 56; regno++) \ if (regs_ever_live[regno] && ! call_used_regs[regno]) \ fprintf(FILE, "\tfpmoved %s, sp@-\n", \ @@ -602,6 +614,17 @@ do { int i; \ } \ if (frame_pointer_needed) \ fprintf (FILE, "\tunlk a6\n"); \ + else if (fsize) \ + { \ + if (fsize + 4 < 0x8000) \ + { \ + fprintf (FILE, "\tadd.w #%d,sp\n", fsize + 4); \ + } \ + else \ + { \ + fprintf (FILE, "\tadd.l #%d,sp\n", fsize + 4); \ + } \ + } \ if (current_function_pops_args) \ fprintf (FILE, "\trtd $%d\n", current_function_pops_args); \ else fprintf (FILE, "\trts\n"); } |