diff options
| author | law <law@138bc75d-0d04-0410-961f-82ee72b054a4> | 1998-01-05 10:45:59 +0000 |
|---|---|---|
| committer | law <law@138bc75d-0d04-0410-961f-82ee72b054a4> | 1998-01-05 10:45:59 +0000 |
| commit | d3eeb4f45787d0d10743db34fac12bb94d3beae8 (patch) | |
| tree | e8e817de0f597241d337f31c2b573ab6bbec257d /gcc/config/mips | |
| parent | 823b9ac6c68176e017fb0e3db2b3727185062f1a (diff) | |
| download | gcc-d3eeb4f45787d0d10743db34fac12bb94d3beae8.tar.gz | |
* mips.c (mips_expand_prologue): Handle large frame with no outgoing
arguments for mips16.
(mips_expand_epilogue): Pass "orig_tsize" to save_restore_insns.
Don't lose if tsize is zero after handling large stack for mips16.
* mips.md (return): For trivial return, return address is in $31.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@17294 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/config/mips')
| -rw-r--r-- | gcc/config/mips/mips.c | 13 | ||||
| -rw-r--r-- | gcc/config/mips/mips.h | 2 | ||||
| -rw-r--r-- | gcc/config/mips/mips.md | 9 |
3 files changed, 10 insertions, 14 deletions
diff --git a/gcc/config/mips/mips.c b/gcc/config/mips/mips.c index 6ea2659ba1c..ebcf0fb0d0f 100644 --- a/gcc/config/mips/mips.c +++ b/gcc/config/mips/mips.c @@ -1,5 +1,5 @@ /* Subroutines for insn-output.c for MIPS - Copyright (C) 1989, 90, 91, 93-96, 1997 Free Software Foundation, Inc. + Copyright (C) 1989, 90, 91, 93-97, 1998 Free Software Foundation, Inc. Contributed by A. Lichnewsky, lich@inria.inria.fr. Changes by Michael Meissner, meissner@osf.org. 64 bit r4000 support by Ian Lance Taylor, ian@cygnus.com, and @@ -6559,9 +6559,10 @@ mips_expand_prologue () else if (TARGET_64BIT) insn = emit_insn (gen_movdi (hard_frame_pointer_rtx, stack_pointer_rtx)); else - insn= emit_insn (gen_movsi (hard_frame_pointer_rtx, stack_pointer_rtx)); + insn = emit_insn (gen_movsi (hard_frame_pointer_rtx, stack_pointer_rtx)); - RTX_FRAME_RELATED_P (insn) = 1; + if (insn) + RTX_FRAME_RELATED_P (insn) = 1; } if (TARGET_ABICALLS && mips_abi != ABI_32) @@ -6749,7 +6750,7 @@ mips_expand_epilogue () & (1L << (PIC_OFFSET_TABLE_REGNUM - GP_REG_FIRST)))) emit_insn (gen_blockage ()); - save_restore_insns (FALSE, tmp_rtx, tsize, (FILE *)0); + save_restore_insns (FALSE, tmp_rtx, orig_tsize, (FILE *)0); /* In mips16 mode with a large frame, we adjust the stack pointer before restoring the registers. In this case, we @@ -6759,10 +6760,10 @@ mips_expand_epilogue () abort (); emit_insn (gen_blockage ()); - if (TARGET_LONG64) + if (TARGET_LONG64 && tsize != 0) emit_insn (gen_adddi3 (stack_pointer_rtx, stack_pointer_rtx, tsize_rtx)); - else + else if (tsize != 0) emit_insn (gen_addsi3 (stack_pointer_rtx, stack_pointer_rtx, tsize_rtx)); } diff --git a/gcc/config/mips/mips.h b/gcc/config/mips/mips.h index e0b9cc39ee5..76b864410a7 100644 --- a/gcc/config/mips/mips.h +++ b/gcc/config/mips/mips.h @@ -1,5 +1,5 @@ /* Definitions of target machine for GNU compiler. MIPS version. - Copyright (C) 1989, 90-6, 1997 Free Software Foundation, Inc. + Copyright (C) 1989, 90-97, 1998 Free Software Foundation, Inc. Contributed by A. Lichnewsky (lich@inria.inria.fr). Changed by Michael Meissner (meissner@osf.org). 64 bit r4000 support by Ian Lance Taylor (ian@cygnus.com) and diff --git a/gcc/config/mips/mips.md b/gcc/config/mips/mips.md index 8fd4dfdaddf..bf44a6f1d19 100644 --- a/gcc/config/mips/mips.md +++ b/gcc/config/mips/mips.md @@ -3,7 +3,7 @@ ;; Changes by Michael Meissner, meissner@osf.org ;; 64 bit r4000 support by Ian Lance Taylor, ian@cygnus.com, and ;; Brendan Eich, brendan@microunity.com. -;; Copyright (C) 1989, 90-96, 1997 Free Software Foundation, Inc. +;; Copyright (C) 1989, 90-97, 1998 Free Software Foundation, Inc. ;; This file is part of GNU CC. @@ -8790,12 +8790,7 @@ move\\t%0,%z4\\n\\ (define_insn "return" [(return)] "mips_can_use_return_insn ()" - "* -{ - if (TARGET_MIPS16) - return \"%*j\\t$7\"; - return \"%*j\\t$31\"; -}" + "%*j\\t$31" [(set_attr "type" "jump") (set_attr "mode" "none") (set_attr "length" "1")]) |