mn10300: Clean up costing.

Address, register, memory and rtx costs bore little relation to reality. From-SVN: r168678

mn10300: Clean up costing.
Address, register, memory and rtx costs bore little relation to reality. From-SVN: r168678
72d6e3c5 · Richard Henderson · Richard Henderson · 62d3f9b2 · 72d6e3c5 · 72d6e3c5
Commit 72d6e3c5 authored Jan 11, 2011 by Richard Henderson Committed by Richard Henderson Jan 11, 2011
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gcc/ChangeLog
+14 -0

gcc/config/mn10300/mn10300-protos.h
+0 -1

gcc/config/mn10300/mn10300.c
+0 -0

gcc/config/mn10300/mn10300.h
+0 -13

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--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
 2011-01-11  Richard Henderson  <rth@redhat.com>

+	* config/mn10300/mn10300.c (mn10300_address_cost): Remove forward
+	declaration.  Rewrite for both speed and size.
+	(mn10300_address_cost_1): Remove.
+	(mn10300_register_move_cost): New.
+	(mn10300_memory_move_cost): New.
+	(mn10300_rtx_costs): Rewrite for both speed and size.  Don't handle
+	ZERO_EXTRACT.  Do handle UNSPEC, arithmetic, logicals, compare,
+	extensions, shifts, BSWAP, CLZ.
+	(mn10300_wide_const_load_uses_clr): Remove.
+	(TARGET_REGISTER_MOVE_COST): New.
+	(TARGET_MEMORY_MOVE_COST): New.
+	* config/mn10300/mn10300-protos.h: Update.
+	* config/mn10300/mn10300.h (REGISTER_MOVE_COST): Remove.
+
 	* config/mn10300/constraints.md ("R", "T"): Remove constraints.
 	* config/mn10300/mn10300.c (mn10300_mask_ok_for_mem_btst): Remove.
 	* config/mn10300/mn10300-protos.h: Update.

--- a/gcc/config/mn10300/mn10300-protos.h
+++ b/gcc/config/mn10300/mn10300-protos.h
@@ -39,7 +39,6 @@ extern Rclas mn10300_secondary_reload_class (Rclas, Mmode, rtx);
 extern Mmode mn10300_select_cc_mode (rtx);
 extern int   mn10300_store_multiple_operation (rtx, Mmode);
 extern int   mn10300_symbolic_operand (rtx, Mmode);
-extern bool  mn10300_wide_const_load_uses_clr (rtx operands[2]);
 #endif /* RTX_CODE */

 extern int   mn10300_can_use_return_insn (void);

--- a/gcc/config/mn10300/mn10300.c
+++ b/gcc/config/mn10300/mn10300.c
--- a/gcc/config/mn10300/mn10300.h
+++ b/gcc/config/mn10300/mn10300.h
@@ -600,19 +600,6 @@ struct cum_arg
 #define SELECT_CC_MODE(OP, X, Y)  mn10300_select_cc_mode (X)
 #define REVERSIBLE_CC_MODE(MODE)  0

-#define REGISTER_MOVE_COST(MODE, CLASS1, CLASS2) \
-  ((CLASS1 == CLASS2 && (CLASS1 == ADDRESS_REGS || CLASS1 == DATA_REGS)) ? 2 :\
-   ((CLASS1 == ADDRESS_REGS || CLASS1 == DATA_REGS) && \
-    (CLASS2 == ADDRESS_REGS || CLASS2 == DATA_REGS)) ? 4 : \
-   (CLASS1 == SP_REGS && CLASS2 == ADDRESS_REGS) ? 2 : \
-   (CLASS1 == ADDRESS_REGS && CLASS2 == SP_REGS) ? 4 : \
-   ! TARGET_AM33 ? 6 : \
-   (CLASS1 == SP_REGS || CLASS2 == SP_REGS) ? 6 : \
-   (CLASS1 == CLASS2 && CLASS1 == EXTENDED_REGS) ? 6 : \
-   (CLASS1 == FP_REGS || CLASS2 == FP_REGS) ? 6 : \
-   (CLASS1 == EXTENDED_REGS || CLASS2 == EXTENDED_REGS) ? 4 : \
-   4)
-
 /* Nonzero if access to memory by bytes or half words is no faster
   than accessing full words.  */
 #define SLOW_BYTE_ACCESS 1