i386.c (ix86_expand_clrmem): Properly call gen_strset for 64bit target.

2004-08-07  H.J. Lu  <hongjiu.lu@intel.com>

	* config/i386/i386.c (ix86_expand_clrmem): Properly call
	gen_strset for 64bit target.

From-SVN: r85673

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 7cd55d3df51375547cf6393205c9fca38659da1d..11aaa96d4db6c87085cabfd70b1465cfb588534c 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2004-08-07  H.J. Lu  <hongjiu.lu@intel.com>
+
+       * config/i386/i386.c (ix86_expand_clrmem): Properly call
+       gen_strset for 64bit target.
+
 2004-08-07  Olivier Hainque  <hainque@act-europe.fr>
 
        * config/vxworks.h (HANDLE_SYSV_PRAGMA): Remove definition.

diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index 951573415da73d62289ae747c9c79b75d4b90f02..e1e2027b2e379c12259250366afb231b683bb1ba 100644 (file)
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -11569,7 +11569,10 @@ ix86_expand_clrmem (rtx dst, rtx count_exp, rtx align_exp)
                rtx mem = adjust_automodify_address_nv (dst,
                                                        GET_MODE (zeroreg),
                                                        destreg, offset);
-               emit_insn (gen_strset (destreg, mem, zeroreg));
+               emit_insn (gen_strset (destreg, mem,
+                                      (TARGET_64BIT
+                                       ? gen_rtx_SUBREG (SImode, zeroreg, 0)
+                                       : zeroreg)));
                offset += size;
              }
          else