diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 04b32b92140..f326c578489 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2001-12-07  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
+
+	* alpha.c (alpha_expand_unaligned_store,
+	alpha_expand_unaligned_store_words): Use constm1_rtx in place of
+	call to immed_double_const.
+
 2001-12-07  Aldy Hernandez  <aldyh@redhat.com>
 
 	* doc/extend.texi (Variable Attributes): Document vector_size.
diff --git a/gcc/config/alpha/alpha.c b/gcc/config/alpha/alpha.c
index 66fd6c05dc4..e5451824741 100644
--- a/gcc/config/alpha/alpha.c
+++ b/gcc/config/alpha/alpha.c
@@ -3628,7 +3628,7 @@ alpha_expand_unaligned_store (dst, src, size, ofs)
 #if HOST_BITS_PER_WIDE_INT == 32
 	    rtx msk = immed_double_const (0xffffffff, 0xffffffff, DImode);
 #else
-	    rtx msk = immed_double_const (0xffffffffffffffff, 0, DImode);
+	    rtx msk = constm1_rtx;
 #endif
 	    emit_insn (gen_mskxl_be (dsth, dsth, msk, addr));
 	  }
@@ -3675,7 +3675,7 @@ alpha_expand_unaligned_store (dst, src, size, ofs)
 #if HOST_BITS_PER_WIDE_INT == 32
 	    rtx msk = immed_double_const (0xffffffff, 0xffffffff, DImode);
 #else
-	    rtx msk = immed_double_const (0xffffffffffffffff, 0, DImode);
+	    rtx msk = constm1_rtx;
 #endif
 	    emit_insn (gen_mskxl_le (dstl, dstl, msk, addr));
 	  }
@@ -3807,7 +3807,7 @@ alpha_expand_unaligned_store_words (data_regs, dmem, words, ofs)
 #if HOST_BITS_PER_WIDE_INT == 32
   rtx const im1 = immed_double_const (0xffffffff, 0xffffffff, DImode);
 #else
-  rtx const im1 = immed_double_const (0xffffffffffffffff, 0, DImode);
+  rtx const im1 = constm1_rtx;
 #endif
   rtx ins_tmps[MAX_MOVE_WORDS];
   rtx st_tmp_1, st_tmp_2, dreg;