diff options
Diffstat (limited to 'gcc/emit-rtl.c')
| -rw-r--r-- | gcc/emit-rtl.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/gcc/emit-rtl.c b/gcc/emit-rtl.c index 7048aee..a000551 100644 --- a/gcc/emit-rtl.c +++ b/gcc/emit-rtl.c @@ -3191,6 +3191,22 @@ prev_real_insn (insn) return insn; } +/* Return the last CALL_INSN in the current list, or 0 if there is none. + This routine does not look inside SEQUENCEs. */ + +rtx +last_call_insn () +{ + rtx insn; + + for (insn = get_last_insn (); + insn && GET_CODE (insn) != CALL_INSN; + insn = PREV_INSN (insn)) + ; + + return insn; +} + /* Find the next insn after INSN that really does something. This routine does not look inside SEQUENCEs. Until reload has completed, this is the same as next_real_insn. */ @@ -3850,6 +3866,31 @@ remove_insn (insn) } } +/* Append CALL_FUSAGE to the CALL_INSN_FUNCTION_USAGE for CALL_INSN. */ + +void +add_function_usage_to (call_insn, call_fusage) + rtx call_insn, call_fusage; +{ + if (! call_insn || GET_CODE (call_insn) != CALL_INSN) + abort (); + + /* Put the register usage information on the CALL. If there is already + some usage information, put ours at the end. */ + if (CALL_INSN_FUNCTION_USAGE (call_insn)) + { + rtx link; + + for (link = CALL_INSN_FUNCTION_USAGE (call_insn); XEXP (link, 1) != 0; + link = XEXP (link, 1)) + ; + + XEXP (link, 1) = call_fusage; + } + else + CALL_INSN_FUNCTION_USAGE (call_insn) = call_fusage; +} + /* Delete all insns made since FROM. FROM becomes the new last instruction. */ |