* config/ia64/ia64.c (ia64_expand_vecint_compare): Decompose to EQ

[pf3gnuchains/gcc-fork.git] / gcc / config / ia64 / ia64.c

diff --git a/gcc/config/ia64/ia64.c b/gcc/config/ia64/ia64.c
index 0ece663..85d0bd2 100644 (file)
--- a/gcc/config/ia64/ia64.c
+++ b/gcc/config/ia64/ia64.c
@@ -1568,7 +1568,7 @@ ia64_expand_vecint_compare (enum rtx_code code, enum machine_mode mode,
     }
 
   /* Unsigned parallel compare is not supported by the hardware.  Play some
-     tricks to turn this into a GT comparison against 0.  */
+     tricks to turn this into a signed comparison against 0.  */
   if (code == GTU)
     {
       switch (mode)
@@ -1592,6 +1592,10 @@ ia64_expand_vecint_compare (enum rtx_code code, enum machine_mode mode,
               in the sign bit set iff we saw unsigned underflow.  */
            x = gen_reg_rtx (V2SImode);
            emit_insn (gen_xorv2si3 (x, t1, t2));
+
+           code = GT;
+           op0 = x;
+           op1 = CONST0_RTX (mode);
          }
          break;
 
@@ -1601,15 +1605,16 @@ ia64_expand_vecint_compare (enum rtx_code code, enum machine_mode mode,
          x = gen_reg_rtx (mode);
          emit_insn (gen_rtx_SET (VOIDmode, x,
                                  gen_rtx_US_MINUS (mode, op0, op1)));
+
+         code = EQ;
+         op0 = x;
+         op1 = CONST0_RTX (mode);
+         negate = !negate;
          break;
 
        default:
          gcc_unreachable ();
        }
-
-      code = GT;
-      op0 = x;
-      op1 = CONST0_RTX (mode);
     }
 
   x = gen_rtx_fmt_ee (code, mode, op0, op1);