diff options
| author | aoliva <aoliva@138bc75d-0d04-0410-961f-82ee72b054a4> | 2001-01-12 21:58:56 +0000 |
|---|---|---|
| committer | aoliva <aoliva@138bc75d-0d04-0410-961f-82ee72b054a4> | 2001-01-12 21:58:56 +0000 |
| commit | ddaf7ad3f295fc6f36c7af34ae787f52b79e4fa3 (patch) | |
| tree | 7db1440305362aa4b11577379f87eec6ec050a30 /gcc/cse.c | |
| parent | 9469a2e281c00b3ba48e51a0e9201731a23546cf (diff) | |
| download | gcc-ddaf7ad3f295fc6f36c7af34ae787f52b79e4fa3.tar.gz | |
* calls.c (emit_library_call_value_1): Add USEs and CLOBBERs
to function usage for arguments passed by reference. Optimize
callee-copied arguments.
* regmove.c (find_related_toplev): Find uses in function usage.
(replace_in_call_usage): New function.
(fixup_match_1): Call it.
* cse.c (cse_insn): Canonicalize registers in function usage.
* reload1.c (replace_pseudos_in_call_usage): New function.
(reload): Call it.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38964 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/cse.c')
| -rw-r--r-- | gcc/cse.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/gcc/cse.c b/gcc/cse.c index 3d0f1a7658c..7b86d51cb82 100644 --- a/gcc/cse.c +++ b/gcc/cse.c @@ -1,6 +1,6 @@ /* Common subexpression elimination for GNU compiler. Copyright (C) 1987, 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998 - 1999, 2000 Free Software Foundation, Inc. + 1999, 2000, 2001 Free Software Foundation, Inc. This file is part of GNU CC. @@ -4754,8 +4754,11 @@ cse_insn (insn, libcall_insn) if (GET_CODE (insn) == CALL_INSN) { for (tem = CALL_INSN_FUNCTION_USAGE (insn); tem; tem = XEXP (tem, 1)) - if (GET_CODE (XEXP (tem, 0)) == CLOBBER) - invalidate (SET_DEST (XEXP (tem, 0)), VOIDmode); + { + if (GET_CODE (XEXP (tem, 0)) == CLOBBER) + invalidate (SET_DEST (XEXP (tem, 0)), VOIDmode); + XEXP (tem, 0) = canon_reg (XEXP (tem, 0), insn); + } } if (GET_CODE (x) == SET) |