rs6000.c (rs6000_rtx_costs): Handle subtractions identically to additions, always...

	* config/rs6000/rs6000.c (rs6000_rtx_costs) <MINUS_EXPR>: Handle
	subtractions identically to additions, always COSTS_N_INSNS (1).

From-SVN: r83906

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index e18d36ff1a08ba5eb771f47811ab270b3a5bdb69..fdd36d9d23264461ee567240f6eea9a6e74aed29 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2004-06-30  Roger Sayle  <roger@eyesopen.com>
+
+       * config/rs6000/rs6000.c (rs6000_rtx_costs) <MINUS_EXPR>: Handle
+       subtractions identically to additions, always COSTS_N_INSNS (1).
+
 2004-06-30  J"orn Rennecke <joern.rennecke@superh.com>
 
        * expmed.c (expand_smod_pow2): Fix sign of mask.

diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index f91e3f67814843a7881fbff88560d41452af0186..3102e54569a13464316ef8c791ece8bbc18d2806 100644 (file)
--- a/gcc/config/rs6000/rs6000.c
+++ b/gcc/config/rs6000/rs6000.c
@@ -16169,6 +16169,10 @@ rs6000_rtx_costs (rtx x, int code, int outer_code ATTRIBUTE_UNUSED,
                : COSTS_N_INSNS (1));
       return true;
 
+    case MINUS:
+      *total = COSTS_N_INSNS (1);
+      return true;
+
     case AND:
     case IOR:
     case XOR: