2003-10-25 Eric Christopher <echristo@redhat.com>

	* function.c (purge_addressof_1): Add case for REG_RETVAL
        notes when modes are unequal.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@73107 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index fafc11e..f62a349 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2003-10-25  Eric Christopher  <echristo@redhat.com>
+
+       * function.c (purge_addressof_1): Add case for REG_RETVAL
+        notes when modes are unequal.
+
 2003-10-31  Jan Hubicka  <jh@suse.cz>
 
        * i386-modes.def: Add XFmode format adjustment.
@@ -60,9 +65,9 @@
        not necessarily because of __builtin_return_addr (0).
        (s390_split_branches): Remove TEMP_REG and TEMP_USED arguments,
        remove special handling of zSeries machines.
-       (s390_optimize_prolog): Remove TEMP_USED argument, treat the return 
+       (s390_optimize_prolog): Remove TEMP_USED argument, treat the return
        register as a regular register on zSeries machines.
-       (s390_reorg): Adjust calls to s390_split_branches and 
+       (s390_reorg): Adjust calls to s390_split_branches and
        s390_optimize_prolog.
        (s390_frame_info): On zSeries machines, do not assume the return
        register is always used.  Update regs_ever_live with current data
@@ -97,14 +102,14 @@
        * target.h (struct gcc_target): Add build_builtin_va_list.
        * tree.c (build_common_tree_nodes_2): Use it.
 
-       * config/alpha/alpha-protos.h, config/alpha/alpha.c, 
+       * config/alpha/alpha-protos.h, config/alpha/alpha.c,
        config/alpha/alpha.h, config/alpha/unicosmk.h,
        config/d30v/d30v-protos.h, config/d30v/d30v.c, config/d30v/d30v.h,
        config/i386/i386-protos.h, config/i386/i386.c, config/i386/i386.h,
        config/i860/i860-protos.h, config/i860/i860.c, config/i860/i860.h,
        config/i960/i960-protos.h, config/i960/i960.c, config/i960/i960.h,
        config/mips/iris6.h, config/mips/mips-protos.h, config/mips/mips.c,
-       config/mips/mips.h, config/rs6000/rs6000-protos.h, 
+       config/mips/mips.h, config/rs6000/rs6000-protos.h,
        config/rs6000/rs6000.c, config/rs6000/rs6000.h,
        config/s390/s390-protos.h, config/s390/s390.c, config/s390/s390.h,
        config/sh/sh-protos.h, config/sh/sh.c, config/sh/sh.h,

diff --git a/gcc/function.c b/gcc/function.c
index 6531c02..c2f3202 100644 (file)
--- a/gcc/function.c
+++ b/gcc/function.c
@@ -3085,7 +3085,10 @@ purge_addressof_1 (rtx *loc, rtx insn, int force, int store, int may_postpone,
                         subregs.  */
                      || (GET_MODE_SIZE (GET_MODE (x)) > UNITS_PER_WORD
                          && (GET_MODE_SIZE (GET_MODE (x))
-                             > GET_MODE_SIZE (GET_MODE (sub)))))
+                             > GET_MODE_SIZE (GET_MODE (sub))))
+                     || (GET_MODE_SIZE (GET_MODE (x))
+                         < GET_MODE_SIZE (GET_MODE (sub))))
+
                    {
                      *loc = gen_rtx_SUBREG (GET_MODE (x), sub, 0);
                      return true;