[AArch64] Fix Cortex-A53 shift costs

On behalf of Wilco Dijkstra

2015-05-01  Wilco Dijkstra  <wdijkstr@arm.com>

	* gcc/config/arm/aarch-cost-tables.h (cortexa53_extra_costs):
	Make Cortex-A53 shift costs more accurate.

From-SVN: r222678

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 71ed72c0bcb193dfc79e5046acd6706dbbaefbb2..9869d0a2e7fce5fe6532f762363e4d0afb20c225 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2015-05-01  Wilco Dijkstra  <wdijkstr@arm.com>
+
+       * gcc/config/arm/aarch-cost-tables.h (cortexa53_extra_costs):
+       Make Cortex-A53 shift costs more accurate.
+
 2015-05-01  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 
        * config/aarch64/aarch64.c (aarch64_rtx_costs): Handle FLOAT and

diff --git a/gcc/config/arm/aarch-cost-tables.h b/gcc/config/arm/aarch-cost-tables.h
index 05e96a9f290cf4c7e80d21a7a8ff2f6adc8eb7f4..6bb8edea3ffa6ed5b163c11054de9219713e119b 100644 (file)
--- a/gcc/config/arm/aarch-cost-tables.h
+++ b/gcc/config/arm/aarch-cost-tables.h
@@ -130,12 +130,12 @@ const struct cpu_cost_table cortexa53_extra_costs =
     0,                 /* arith.  */
     0,                 /* logical.  */
     COSTS_N_INSNS (1), /* shift.  */
-    COSTS_N_INSNS (2), /* shift_reg.  */
+    0,                 /* shift_reg.  */
     COSTS_N_INSNS (1), /* arith_shift.  */
-    COSTS_N_INSNS (2), /* arith_shift_reg.  */
+    COSTS_N_INSNS (1), /* arith_shift_reg.  */
     COSTS_N_INSNS (1), /* log_shift.  */
-    COSTS_N_INSNS (2), /* log_shift_reg.  */
-    0,                 /* extend.  */
+    COSTS_N_INSNS (1), /* log_shift_reg.  */
+    COSTS_N_INSNS (1), /* extend.  */
     COSTS_N_INSNS (1), /* extend_arith.  */
     COSTS_N_INSNS (1), /* bfi.  */
     COSTS_N_INSNS (1), /* bfx.  */