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| author | Alexandre Oliva <aoliva@redhat.com> | 2000-09-18 16:45:48 +0000 |
|---|---|---|
| committer | Alexandre Oliva <aoliva@gcc.gnu.org> | 2000-09-18 16:45:48 +0000 |
| commit | 40fc375d0af62c9f990bc147f280d6eecdef9d80 (patch) | |
| tree | 54863b987e32c75da10f41bf7136b114881a6ce0 | |
| parent | 55eec6605c16043daf8604c66a5a8d5e3e37c720 (diff) | |
| download | gcc-40fc375d0af62c9f990bc147f280d6eecdef9d80.zip gcc-40fc375d0af62c9f990bc147f280d6eecdef9d80.tar.gz gcc-40fc375d0af62c9f990bc147f280d6eecdef9d80.tar.bz2 | |
sh.c (sh_expand_prologue): Mark GOTaddr2picreg as MAYBE_DEAD.
* config/sh/sh.c (sh_expand_prologue): Mark GOTaddr2picreg as
MAYBE_DEAD.
(sh_expand_epilogue): Take the PIC register into account when
computing the frame size.
From-SVN: r36496
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/sh/sh.c | 22 |
2 files changed, 24 insertions, 3 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 368cab3..ae81594 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,10 @@ 2000-09-18 Alexandre Oliva <aoliva@redhat.com> + * config/sh/sh.c (sh_expand_prologue): Mark GOTaddr2picreg as + MAYBE_DEAD. + (sh_expand_epilogue): Take the PIC register into account when + computing the frame size. + * config/sh/sh.c (nonpic_symbol_mentioned_p): Check LABEL_REFs. * config/sh/sh.md (sym_label2reg, symPLT_label2reg): Protect LABEL_REFs with a PIC-safe unspec. diff --git a/gcc/config/sh/sh.c b/gcc/config/sh/sh.c index 903f1c5..1807916 100644 --- a/gcc/config/sh/sh.c +++ b/gcc/config/sh/sh.c @@ -3950,7 +3950,17 @@ sh_expand_prologue () if (flag_pic && (current_function_uses_pic_offset_table || regs_ever_live[PIC_OFFSET_TABLE_REGNUM])) - emit_insn (gen_GOTaddr2picreg ()); + { + rtx insn = get_last_insn (); + rtx insn_end = emit_insn (gen_GOTaddr2picreg ()); + while (insn != insn_end) + { + insn = NEXT_INSN (insn); + REG_NOTES (insn) = gen_rtx_EXPR_LIST (REG_MAYBE_DEAD, + const0_rtx, + REG_NOTES (insn)); + } + } if (target_flags != save_flags) emit_insn (gen_toggle_sz ()); @@ -3976,6 +3986,14 @@ sh_expand_epilogue () live_regs_mask = calc_live_regs (&d, &live_regs_mask2); + if (flag_pic && current_function_uses_pic_offset_table) + { + if ((live_regs_mask & (1 << PIC_OFFSET_TABLE_REGNUM)) != 0) + abort (); + live_regs_mask |= (1 << PIC_OFFSET_TABLE_REGNUM); + d += UNITS_PER_WORD; + } + frame_size = rounded_frame_size (d); if (frame_pointer_needed) @@ -4003,8 +4021,6 @@ sh_expand_epilogue () if (target_flags != save_flags) emit_insn (gen_toggle_sz ()); - if (flag_pic && current_function_uses_pic_offset_table) - live_regs_mask |= (1 << PIC_OFFSET_TABLE_REGNUM); if (live_regs_mask & (1 << PR_REG)) pop (PR_REG); for (i = 0; i < FIRST_PSEUDO_REGISTER; i++) |