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| author | Jan Hubicka <jh@suse.cz> | 2002-02-13 23:44:12 +0100 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2002-02-13 22:44:12 +0000 |
| commit | 8686336f51b1197f22304f92b63780169be7c54b (patch) | |
| tree | 215ef842018fc1bb1791ffcb34c97d2e8cc83b0a /gcc | |
| parent | 558740bf3d958eb4b2f2bcc72eed6fc05dd7c0e3 (diff) | |
| download | gcc-8686336f51b1197f22304f92b63780169be7c54b.zip gcc-8686336f51b1197f22304f92b63780169be7c54b.tar.gz gcc-8686336f51b1197f22304f92b63780169be7c54b.tar.bz2 | |
* regmove.c (kill_value): Handle subregs.
From-SVN: r49748
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/regrename.c | 8 |
2 files changed, 12 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 16340b69..ce1b0ce 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +Wed Feb 13 23:41:15 CET 2002 Jan Hubicka <jh@suse.cz> + + * regmove.c (kill_value): Handle subregs. + Wed Feb 13 23:34:30 CET 2002 Jan Hubicka <jh@suse.cz> * i386.md (mul patterns): Allow memory operand to be first; diff --git a/gcc/regrename.c b/gcc/regrename.c index 135eaef..3ae6f7f 100644 --- a/gcc/regrename.c +++ b/gcc/regrename.c @@ -1095,6 +1095,14 @@ kill_value (x, vd) rtx x; struct value_data *vd; { + /* SUBREGS are supposed to have been eliminated by now. But some + ports, e.g. i386 sse, use them to smuggle vector type information + through to instruction selection. Each such SUBREG should simplify, + so if we get a NULL we've done something wrong elsewhere. */ + + if (GET_CODE (x) == SUBREG) + x = simplify_subreg (GET_MODE (x), SUBREG_REG (x), + GET_MODE (SUBREG_REG (x)), SUBREG_BYTE (x)); if (REG_P (x)) { unsigned int regno = REGNO (x); |