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

rs6000.c (rs6000_rtx_costs): Handle subtractions identically to additions, always COSTS_N_INSNS (1). * config/rs6000/rs6000.c (rs6000_rtx_costs) <MINUS_EXPR>: Handle subtractions identically to additions, always COSTS_N_INSNS (1). From-SVN: r83906

rs6000.c (rs6000_rtx_costs): Handle subtractions identically to additions,…
rs6000.c (rs6000_rtx_costs): Handle subtractions identically to additions, always COSTS_N_INSNS (1). * config/rs6000/rs6000.c (rs6000_rtx_costs) <MINUS_EXPR>: Handle subtractions identically to additions, always COSTS_N_INSNS (1). From-SVN: r83906
52190329 · Roger Sayle · Roger Sayle · 4c6fd544 · 52190329 · 52190329
Commit 52190329 authored Jun 30, 2004 by Roger Sayle Committed by Roger Sayle Jun 30, 2004
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gcc/ChangeLog
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gcc/config/rs6000/rs6000.c
+4 -0

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--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
+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.

--- 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: