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authorian <ian@138bc75d-0d04-0410-961f-82ee72b054a4>2007-02-08 00:59:14 +0000
committerian <ian@138bc75d-0d04-0410-961f-82ee72b054a4>2007-02-08 00:59:14 +0000
commit5e016dfc61b8e84dcbd0df9a4807394e1ca173bf (patch)
treebabd76cec557046e1170d5178daf1a07972d000c /gcc/lower-subreg.c
parent8fd0991a9abfe60c8647c3e8b3c765993a2b9f49 (diff)
downloadgcc-5e016dfc61b8e84dcbd0df9a4807394e1ca173bf.tar.gz
* lower-subreg.c (simple_move): Reject PARTIAL_INT modes.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@121707 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/lower-subreg.c')
-rw-r--r--gcc/lower-subreg.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/gcc/lower-subreg.c b/gcc/lower-subreg.c
index 8d04390da93..fbb506c572e 100644
--- a/gcc/lower-subreg.c
+++ b/gcc/lower-subreg.c
@@ -136,6 +136,11 @@ simple_move (rtx insn)
== BLKmode))
return NULL_RTX;
+ /* Reject PARTIAL_INT modes. They are used for processor specific
+ purposes and it's probably best not to tamper with them. */
+ if (GET_MODE_CLASS (mode) == MODE_PARTIAL_INT)
+ return NULL_RTX;
+
return set;
}