diff options
Diffstat (limited to 'gcc/lra-assigns.cc')
| -rw-r--r-- | gcc/lra-assigns.cc | 50 |
1 files changed, 29 insertions, 21 deletions
diff --git a/gcc/lra-assigns.cc b/gcc/lra-assigns.cc index f9e3dfc..480925a 100644 --- a/gcc/lra-assigns.cc +++ b/gcc/lra-assigns.cc @@ -1763,12 +1763,13 @@ find_reload_regno_insns (int regno, rtx_insn * &start, rtx_insn * &finish) return true; } -/* Process reload pseudos which did not get a hard reg, split a hard - reg live range in live range of a reload pseudo, and then return - TRUE. If we did not split a hard reg live range, report an error, - and return FALSE. */ +/* Process reload pseudos which did not get a hard reg, split a hard reg live + range in live range of a reload pseudo, and then return TRUE. Otherwise, + return FALSE. When FAIL_P is TRUE and if we did not split a hard reg live + range for failed reload pseudos, report an error and modify related asm + insns. */ bool -lra_split_hard_reg_for (void) +lra_split_hard_reg_for (bool fail_p) { int i, regno; rtx_insn *insn, *first, *last; @@ -1843,23 +1844,30 @@ lra_split_hard_reg_for (void) regno = u; bitmap_ior_into (&failed_reload_insns, &lra_reg_info[regno].insn_bitmap); - lra_setup_reg_renumber - (regno, ira_class_hard_regs[lra_get_allocno_class (regno)][0], false); - } - EXECUTE_IF_SET_IN_BITMAP (&failed_reload_insns, 0, u, bi) - { - insn = lra_insn_recog_data[u]->insn; - if (asm_noperands (PATTERN (insn)) >= 0) - { - asm_p = true; - lra_asm_insn_error (insn); - } - else if (!asm_p) - { - error ("unable to find a register to spill"); - fatal_insn ("this is the insn:", insn); - } + if (fail_p) + lra_setup_reg_renumber + (regno, ira_class_hard_regs[lra_get_allocno_class (regno)][0], false); } + if (fail_p) + EXECUTE_IF_SET_IN_BITMAP (&failed_reload_insns, 0, u, bi) + { + insn = lra_insn_recog_data[u]->insn; + if (asm_noperands (PATTERN (insn)) >= 0) + { + asm_p = true; + lra_asm_insn_error (insn); + if (JUMP_P (insn)) + ira_nullify_asm_goto (insn); + else + PATTERN (insn) = gen_rtx_USE (VOIDmode, const0_rtx); + lra_invalidate_insn_data (insn); + } + else if (!asm_p) + { + error ("unable to find a register to spill"); + fatal_insn ("this is the insn:", insn); + } + } bitmap_clear (&failed_reload_pseudos); bitmap_clear (&failed_reload_insns); return false; |