diff options
Diffstat (limited to 'gcc/gcse.c')
| -rw-r--r-- | gcc/gcse.c | 43 |
1 files changed, 20 insertions, 23 deletions
@@ -2495,23 +2495,21 @@ compute_hash_table (set_p) insn && insn != NEXT_INSN (BLOCK_END (bb)); insn = NEXT_INSN (insn)) { -#ifdef NON_SAVING_SETJMP - if (NON_SAVING_SETJMP && GET_CODE (insn) == NOTE - && NOTE_LINE_NUMBER (insn) == NOTE_INSN_SETJMP) - { - for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++) - record_last_reg_set_info (insn, regno); - continue; - } -#endif - if (! INSN_P (insn)) continue; if (GET_CODE (insn) == CALL_INSN) { + bool clobbers_all = false; +#ifdef NON_SAVING_SETJMP + if (NON_SAVING_SETJMP + && find_reg_note (insn, REG_SETJMP, NULL_RTX)) + clobbers_all = true; +#endif + for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++) - if (TEST_HARD_REG_BIT (regs_invalidated_by_call, regno)) + if (clobbers_all + || TEST_HARD_REG_BIT (regs_invalidated_by_call, regno)) record_last_reg_set_info (insn, regno); mark_call (insn); @@ -6415,23 +6413,22 @@ compute_store_table () insn && insn != PREV_INSN (BLOCK_HEAD (bb)); insn = PREV_INSN (insn)) { -#ifdef NON_SAVING_SETJMP - if (NON_SAVING_SETJMP && GET_CODE (insn) == NOTE - && NOTE_LINE_NUMBER (insn) == NOTE_INSN_SETJMP) - { - for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++) - SET_BIT (reg_set_in_block[bb], regno); - continue; - } -#endif - /* Ignore anything that is not a normal insn. */ - if (GET_RTX_CLASS (GET_CODE (insn)) != 'i') + /* Ignore anything that is not a normal insn. */ + if (! INSN_P (insn)) continue; if (GET_CODE (insn) == CALL_INSN) { + bool clobbers_all = false; +#ifdef NON_SAVING_SETJMP + if (NON_SAVING_SETJMP + && find_reg_note (insn, REG_SETJMP, NULL_RTX)) + clobbers_all = true; +#endif + for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++) - if (TEST_HARD_REG_BIT (regs_invalidated_by_call, regno)) + if (clobbers_all + || TEST_HARD_REG_BIT (regs_invalidated_by_call, regno)) SET_BIT (reg_set_in_block[bb], regno); } |