diff options
Diffstat (limited to 'gcc/config/pa/pa.c')
| -rw-r--r-- | gcc/config/pa/pa.c | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/gcc/config/pa/pa.c b/gcc/config/pa/pa.c index 37b051315e8..2602c94a0f7 100644 --- a/gcc/config/pa/pa.c +++ b/gcc/config/pa/pa.c @@ -607,6 +607,8 @@ legitimize_pic_address (rtx orig, enum machine_mode mode, rtx reg) /* Labels need special handling. */ if (pic_label_operand (orig, mode)) { + rtx insn; + /* We do not want to go through the movXX expanders here since that would create recursion. @@ -617,7 +619,24 @@ legitimize_pic_address (rtx orig, enum machine_mode mode, rtx reg) So instead we just emit the raw set, which avoids the movXX expanders completely. */ mark_reg_pointer (reg, BITS_PER_UNIT); - emit_insn (gen_rtx_SET (VOIDmode, reg, orig)); + insn = emit_insn (gen_rtx_SET (VOIDmode, reg, orig)); + + /* Put a REG_EQUAL note on this insn, so that it can be optimized. */ + REG_NOTES (insn) = gen_rtx_EXPR_LIST (REG_EQUAL, orig, REG_NOTES (insn)); + + /* During and after reload, we need to generate a REG_LABEL note and + update LABEL_NUSES because this is not done automatically. */ + if (reload_in_progress || reload_completed) + { + /* Extract LABEL_REF. */ + if (GET_CODE (orig) == CONST) + orig = XEXP (XEXP (orig, 0), 0); + /* Extract CODE_LABEL. */ + orig = XEXP (orig, 0); + REG_NOTES (insn) = gen_rtx_INSN_LIST (REG_LABEL, orig, + REG_NOTES (insn)); + LABEL_NUSES (orig)++; + } current_function_uses_pic_offset_table = 1; return reg; } @@ -7545,6 +7564,12 @@ hppa_encode_label (rtx sym) static void pa_encode_section_info (tree decl, rtx rtl, int first) { + int old_referenced = 0; + + if (!first && MEM_P (rtl) && GET_CODE (XEXP (rtl, 0)) == SYMBOL_REF) + old_referenced + = SYMBOL_REF_FLAGS (XEXP (rtl, 0)) & SYMBOL_FLAG_REFERENCED; + default_encode_section_info (decl, rtl, first); if (first && TEXT_SPACE_P (decl)) @@ -7553,6 +7578,8 @@ pa_encode_section_info (tree decl, rtx rtl, int first) if (TREE_CODE (decl) == FUNCTION_DECL) hppa_encode_label (XEXP (rtl, 0)); } + else if (old_referenced) + SYMBOL_REF_FLAGS (XEXP (rtl, 0)) |= old_referenced; } /* This is sort of inverse to pa_encode_section_info. */ |