From: J"orn Rennecke Date: Wed, 16 Jun 1999 13:32:14 +0000 (+0000) Subject: cse.c (cse_insn): Don't put hard register source into tables for last insn of a libcall. X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=15c68354e9d437c3690ef6fb90a4fd21b533d8e6;p=gcc.git cse.c (cse_insn): Don't put hard register source into tables for last insn of a libcall. * cse.c (cse_insn): Don't put hard register source into tables for last insn of a libcall. From-SVN: r27550 --- diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 6f050bcedcd..7a97024a2f4 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +Wed Jun 16 20:29:00 1999 J"orn Rennecke + + * cse.c (cse_insn): Don't put hard register source into tables for + last insn of a libcall. + Wed Jun 16 19:44:33 1999 J"orn Rennecke * loop.c (strength_reduce): Insert sets of derived givs at every diff --git a/gcc/cse.c b/gcc/cse.c index 5fc6c7889a2..605d1850753 100644 --- a/gcc/cse.c +++ b/gcc/cse.c @@ -7607,7 +7607,12 @@ cse_insn (insn, libcall_insn) enum machine_mode mode = GET_MODE (src) == VOIDmode ? GET_MODE (dest) : GET_MODE (src); - if (sets[i].src_elt == 0) + /* Don't put a hard register source into the table if this is + the last insn of a libcall. */ + if (sets[i].src_elt == 0 + && (GET_CODE (src) != REG + || REGNO (src) >= FIRST_PSEUDO_REGISTER + || ! find_reg_note (insn, REG_RETVAL, NULL_RTX))) { register struct table_elt *elt;