Re: [PATCH, rs6000] Fix vect_pack_trunc_v2df pattern for little endian

[Bill Schmidt]

Hi,

This fixes the two companion patterns vec_pack_[su]fix_trunc_v2df in the
same manner as the recent fix for vec_pack_trunc_v2df.  The same fix
obviously applies here as well.  Bootstrapped and tested on
powerpc64{,le}-unknown-linux-gnu with no regressions.  Is this ok for
trunk?

Thanks,
Bill


2013-11-04  Bill Schmidt  <wschm...@linux.vnet.ibm.com>

        * config/rs6000/vector.md (vec_pack_sfix_trunc_v2df): Adjust for
        little endian.
        (vec_pack_ufix_trunc_v2df): Likewise.


Index: gcc/config/rs6000/vector.md
===================================================================
--- gcc/config/rs6000/vector.md (revision 204349)
+++ gcc/config/rs6000/vector.md (working copy)
@@ -850,7 +850,12 @@
 
   emit_insn (gen_vsx_xvcvdpsxws (r1, operands[1]));
   emit_insn (gen_vsx_xvcvdpsxws (r2, operands[2]));
-  rs6000_expand_extract_even (operands[0], r1, r2);
+
+  if (BYTES_BIG_ENDIAN)
+    rs6000_expand_extract_even (operands[0], r1, r2);
+  else
+    rs6000_expand_extract_even (operands[0], r2, r1);
+
   DONE;
 })
 
@@ -865,7 +870,12 @@
 
   emit_insn (gen_vsx_xvcvdpuxws (r1, operands[1]));
   emit_insn (gen_vsx_xvcvdpuxws (r2, operands[2]));
-  rs6000_expand_extract_even (operands[0], r1, r2);
+
+  if (BYTES_BIG_ENDIAN)
+    rs6000_expand_extract_even (operands[0], r1, r2);
+  else
+    rs6000_expand_extract_even (operands[0], r2, r1);
+
   DONE;
 })