convopt: fix potential bug with modulo shifts, improve cost calculation for optimizab...

[libfirm] / ir / be / arm / arm_cconv.h

diff --git a/ir/be/arm/arm_cconv.h b/ir/be/arm/arm_cconv.h
index 18418b4..9e2b017 100644 (file)
--- a/ir/be/arm/arm_cconv.h
+++ b/ir/be/arm/arm_cconv.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 1995-2008 University of Karlsruhe.  All right reserved.
+ * Copyright (C) 1995-2010 University of Karlsruhe.  All right reserved.
  *
  * This file is part of libFirm.
  *
@@ -31,55 +31,70 @@
 #include "gen_arm_regalloc_if.h"
 
 static const arch_register_t *const callee_saves[] = {
-       &arm_gp_regs[REG_R4],
-       &arm_gp_regs[REG_R5],
-       &arm_gp_regs[REG_R6],
-       &arm_gp_regs[REG_R7],
-       &arm_gp_regs[REG_R8],
-       &arm_gp_regs[REG_R9],
-       &arm_gp_regs[REG_R10],
-       &arm_gp_regs[REG_R11],
-       &arm_gp_regs[REG_LR],
+       &arm_registers[REG_R4],
+       &arm_registers[REG_R5],
+       &arm_registers[REG_R6],
+       &arm_registers[REG_R7],
+       &arm_registers[REG_R8],
+       &arm_registers[REG_R9],
+       &arm_registers[REG_R10],
+       &arm_registers[REG_R11],
+       &arm_registers[REG_LR],
 };
 
 static const arch_register_t *const caller_saves[] = {
-       &arm_gp_regs[REG_R0],
-       &arm_gp_regs[REG_R1],
-       &arm_gp_regs[REG_R2],
-       &arm_gp_regs[REG_R3],
-       &arm_gp_regs[REG_LR]
+       &arm_registers[REG_R0],
+       &arm_registers[REG_R1],
+       &arm_registers[REG_R2],
+       &arm_registers[REG_R3],
+       &arm_registers[REG_LR],
+
+       &arm_registers[REG_F0],
+       &arm_registers[REG_F1],
+       &arm_registers[REG_F2],
+       &arm_registers[REG_F3],
+       &arm_registers[REG_F4],
+       &arm_registers[REG_F5],
+       &arm_registers[REG_F6],
+       &arm_registers[REG_F7],
 };
 
 static const arch_register_t* const param_regs[] = {
-       &arm_gp_regs[REG_R0],
-       &arm_gp_regs[REG_R1],
-       &arm_gp_regs[REG_R2],
-       &arm_gp_regs[REG_R3]
+       &arm_registers[REG_R0],
+       &arm_registers[REG_R1],
+       &arm_registers[REG_R2],
+       &arm_registers[REG_R3]
 };
 
 static const arch_register_t* const result_regs[] = {
-       &arm_gp_regs[REG_R0],
-       &arm_gp_regs[REG_R1],
-       &arm_gp_regs[REG_R2],
-       &arm_gp_regs[REG_R3]
+       &arm_registers[REG_R0],
+       &arm_registers[REG_R1],
+       &arm_registers[REG_R2],
+       &arm_registers[REG_R3]
+};
+
+static const arch_register_t* const float_result_regs[] = {
+       &arm_registers[REG_F0],
+       &arm_registers[REG_F1]
 };
 
 /** information about a single parameter or result */
 typedef struct reg_or_stackslot_t
 {
-       const arch_register_t *reg0;
-       const arch_register_t *reg1;
+       const arch_register_t *reg0;   /**< if != NULL, the first register used for this parameter. */
+       const arch_register_t *reg1;   /**< if != NULL, the second register used. */
        ir_type               *type;   /**< indicates that an entity of the specific
                                                                            type is needed */
-       int                    offset;
+       int                    offset; /**< if transmitted via stack, the offset for this parameter. */
        ir_entity             *entity; /**< entity in frame type */
 } reg_or_stackslot_t;
 
+/** The calling convention info for one call site. */
 typedef struct calling_convention_t
 {
-       reg_or_stackslot_t *parameters;
-       int                 param_stack_size;
-       reg_or_stackslot_t *results;
+       reg_or_stackslot_t *parameters;        /**< parameter info. */
+       int                 param_stack_size;  /**< needed stack size for parameters */
+       reg_or_stackslot_t *results;           /**< result info. */
 } calling_convention_t;
 
 /**
@@ -87,11 +102,12 @@ typedef struct calling_convention_t
  * Decides what goes to register or to stack and what stack offsets/
  * datatypes are used.
  */
-calling_convention_t *decide_calling_convention(ir_type *function_type);
+calling_convention_t *arm_decide_calling_convention(const ir_graph *irg,
+                                                    ir_type *function_type);
 
 /**
  * free memory used by a calling_convention_t
  */
-void free_calling_convention(calling_convention_t *cconv);
+void arm_free_calling_convention(calling_convention_t *cconv);
 
 #endif