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| author | Jim Wilson <wilson@cygnus.com> | 1997-11-05 00:55:50 +0000 |
|---|---|---|
| committer | Jim Wilson <wilson@gcc.gnu.org> | 1997-11-04 16:55:50 -0800 |
| commit | ab00eb0aa3dd2f42fd175d0792908f660b366e3b (patch) | |
| tree | bb081603eb324b51ec68b8b7e1e8f8d433609307 | |
| parent | 31c8581d25e55cd1a2507e215b5b6046919b2ab3 (diff) | |
| download | gcc-ab00eb0aa3dd2f42fd175d0792908f660b366e3b.zip gcc-ab00eb0aa3dd2f42fd175d0792908f660b366e3b.tar.gz gcc-ab00eb0aa3dd2f42fd175d0792908f660b366e3b.tar.bz2 | |
Fix shared library problem found by GNAT users.
* mips.c (mips_expand_epilogue): Emit blockage insn before call to
save_restore_insns if no FP and GP will be restored.
From-SVN: r16327
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/mips/mips.c | 7 |
2 files changed, 11 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 2f981e9..7a3f4da 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,4 +1,7 @@ -Tue Nov 4 12:30:28 1997 Jim Wilson <wilson@cygnus.com> +Tue Nov 4 16:55:11 1997 Jim Wilson <wilson@cygnus.com> + + * mips.c (mips_expand_epilogue): Emit blockage insn before call to + save_restore_insns if no FP and GP will be restored. * dwarf2out.c (expand_builtin_dwarf_reg_size): New variable mode. Convert CCmode to word_mode before calling GET_MODE_SIZE. diff --git a/gcc/config/mips/mips.c b/gcc/config/mips/mips.c index 8516435..2d6984b 100644 --- a/gcc/config/mips/mips.c +++ b/gcc/config/mips/mips.c @@ -5591,6 +5591,13 @@ mips_expand_epilogue () else emit_insn (gen_movsi (stack_pointer_rtx, frame_pointer_rtx)); } + /* The GP/PIC register is implicitly used by all SYMBOL_REFs, so if we + are going to restore it, then we must emit a blockage insn to + prevent the scheduler from moving the restore out of the epilogue. */ + else if (TARGET_ABICALLS && mips_abi != ABI_32 + && (current_frame_info.mask + & (1L << (PIC_OFFSET_TABLE_REGNUM - GP_REG_FIRST)))) + emit_insn (gen_blockage ()); save_restore_insns (FALSE, tmp_rtx, tsize, (FILE *)0); |