diff options
Diffstat (limited to 'gcc/cse.c')
| -rw-r--r-- | gcc/cse.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/gcc/cse.c b/gcc/cse.c index 53b26d039b9..18569f680fc 100644 --- a/gcc/cse.c +++ b/gcc/cse.c @@ -592,7 +592,7 @@ static void remove_invalid_subreg_refs (unsigned int, unsigned int, enum machine_mode); static void rehash_using_reg (rtx); static void invalidate_memory (void); -static void invalidate_for_call (void); +static void invalidate_for_call (rtx); static rtx use_related_value (rtx, struct table_elt *); static inline unsigned canon_hash (rtx, enum machine_mode); @@ -2003,21 +2003,23 @@ rehash_using_reg (rtx x) register. Also update their TICK values. */ static void -invalidate_for_call (void) +invalidate_for_call (rtx call_insn) { unsigned int regno, endregno; unsigned int i; unsigned hash; struct table_elt *p, *next; int in_table = 0; - + HARD_REG_SET clobbered_regs; + /* Go through all the hard registers. For each that is clobbered in a CALL_INSN, remove the register from quantity chains and update reg_tick if defined. Also see if any of these registers is currently in the table. */ + get_call_invalidated_used_regs (call_insn, &clobbered_regs, true); for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++) - if (TEST_HARD_REG_BIT (regs_invalidated_by_call, regno)) + if (TEST_HARD_REG_BIT (clobbered_regs, regno)) { delete_reg_equiv (regno); if (REG_TICK (regno) >= 0) @@ -2047,7 +2049,7 @@ invalidate_for_call (void) endregno = regno + hard_regno_nregs[regno][GET_MODE (p->exp)]; for (i = regno; i < endregno; i++) - if (TEST_HARD_REG_BIT (regs_invalidated_by_call, i)) + if (TEST_HARD_REG_BIT (clobbered_regs, i)) { remove_from_table (p, hash); break; @@ -5995,7 +5997,7 @@ cse_insn (rtx insn, rtx libcall_insn) { if (! CONST_OR_PURE_CALL_P (insn)) invalidate_memory (); - invalidate_for_call (); + invalidate_for_call (insn); } /* Now invalidate everything set by this instruction. @@ -6581,7 +6583,7 @@ invalidate_skipped_block (rtx start) { if (! CONST_OR_PURE_CALL_P (insn)) invalidate_memory (); - invalidate_for_call (); + invalidate_for_call (insn); } invalidate_from_clobbers (PATTERN (insn)); |