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| author | steven <steven@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-02-20 22:14:41 +0000 |
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| committer | steven <steven@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-02-20 22:14:41 +0000 |
| commit | f16feee25a739555a76f0cd97aca0b2f8f267aa3 (patch) | |
| tree | 86910b46650f770e82274e25d7d3f2c992409256 /gcc/rtlanal.c | |
| parent | e4f51d19ea7e0a169e7efbce63cc8c62e71851bb (diff) | |
| download | gcc-f16feee25a739555a76f0cd97aca0b2f8f267aa3.tar.gz | |
* rtl.h (remove_reg_equal_equiv_notes): New prototype.
* rtlanal.c (remove_reg_equal_equiv_notes): New function.
* combine.c (adjust_for_new_dest): Use it.
* postreload.c (reload_combine): Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@122178 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/rtlanal.c')
| -rw-r--r-- | gcc/rtlanal.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/gcc/rtlanal.c b/gcc/rtlanal.c index b23eec4cf9f..00a996e4696 100644 --- a/gcc/rtlanal.c +++ b/gcc/rtlanal.c @@ -1820,6 +1820,24 @@ remove_note (rtx insn, rtx note) gcc_unreachable (); } +/* Remove REG_EQUAL and/or REG_EQUIV notes if INSN has such notes. */ + +void +remove_reg_equal_equiv_notes (rtx insn) +{ + rtx *loc; + + loc = ®_NOTES (insn); + while (*loc) + { + enum reg_note kind = REG_NOTE_KIND (*loc); + if (kind == REG_EQUAL || kind == REG_EQUIV) + *loc = XEXP (*loc, 1); + else + loc = &XEXP (*loc, 1); + } +} + /* Search LISTP (an EXPR_LIST) for an entry whose first operand is NODE and return 1 if it is found. A simple equality test is used to determine if NODE matches. */ |