add extra info for immediate float mode

[r19841]

include/libfirm/be.h

@@ -36,25 +36,30 @@
  * propagated to the libFirm parameter set.
  */
 typedef struct backend_params {
-	/** if set, the backend cannot handle DWORD access */
+	/** If set, the backend cannot handle DWORD access. */
 	unsigned do_dw_lowering:1;
-	/** if set, the backend supports inline assembly */
+	/** If set, the backend supports inline assembly. */
 	unsigned support_inline_asm:1;
+	/** If set, the target architecture use an immediate floating point mode. */
+	unsigned has_imm_fp_mode:1;
 
 	/** Additional opcodes settings. */
 	const arch_ops_info *arch_op_settings;
 
-	/** Settings for architecture dependent optimizations */
+	/** Settings for architecture dependent optimizations. */
 	const ir_settings_arch_dep_t *dep_param;
 
-	/** the architecture specific intrinsic function creator */
+	/** The architecture specific intrinsic function creator. */
 	create_intrinsic_fkt *arch_create_intrinsic_fkt;
 
-	/** the context parameter for the create intrinsic function */
+	/** The context parameter for the create intrinsic function. */
 	void *create_intrinsic_ctx;
 
-	/** backend settings for if-conversion */
+	/** Backend settings for if-conversion. */
 	const ir_settings_if_conv_t *if_conv_info;
+
+	/** The immediate floating point mode. Temporaries are calculated using this mode. */
+	ir_mode *imm_fp_mode;
 } backend_params;
 
 /**

ir/be/TEMPLATE/bearch_TEMPLATE.c

@@ -633,11 +633,13 @@ static const backend_params *TEMPLATE_get_backend_params(void) {
 	static backend_params p = {
 		0,     /* no dword lowering */
 		0,     /* no inline assembly */
+		0,     /* no immediate floating point mode. */
 		NULL,  /* no additional opcodes */
 		NULL,  /* will be set later */
 		NULL,  /* no creator function */
 		NULL,  /* context for create_intrinsic_fkt */
 		NULL,  /* parameter for if conversion */
+		NULL   /* no immediate fp mode */
 	};
 	return &p;
 }

ir/be/arm/bearch_arm.c

@@ -1193,11 +1193,13 @@ static const backend_params *arm_get_libfirm_params(void) {
 	static backend_params p = {
 		1,     /* need dword lowering */
 		0,     /* don't support inline assembler yet */
+		0,     /* no immediate floating point mode. */
 		NULL,  /* no additional opcodes */
 		NULL,  /* will be set later */
 		NULL,  /* but yet no creator function */
 		NULL,  /* context for create_intrinsic_fkt */
 		NULL,  /* will be set below */
+		NULL   /* no immediate fp mode */
 	};
 
 	p.dep_param    = &ad;

ir/be/bemain.c

@@ -214,12 +214,14 @@ int be_parse_arg(const char *arg) {
 /** The be parameters returned by default, all off. */
 static const backend_params be_params = {
 	0,    /* need dword lowering */
-	0,    /* don't support inlien assembler yet */
+	0,    /* don't support inline assembler yet */
+	0,     /* no immediate floating point mode. */
 	NULL, /* no additional opcodes */
 	NULL, /* will be set later */
 	NULL, /* but yet no creator function */
 	NULL, /* context for create_intrinsic_fkt */
 	NULL, /* no if conversion settings */
+	NULL   /* no immediate fp mode */
 };
 
 /* Perform schedule verification if requested. */

ir/be/ia32/bearch_ia32.c

@@ -2173,11 +2173,13 @@ static const backend_params *ia32_get_libfirm_params(void) {
 	static backend_params p = {
 		1,     /* need dword lowering */
 		1,     /* support inline assembly */
+		0,     /* no immediate floating point mode. */
 		NULL,  /* no additional opcodes */
 		NULL,  /* will be set later */
 		ia32_create_intrinsic_fkt,
 		&intrinsic_env,  /* context for ia32_create_intrinsic_fkt */
 		NULL,  /* will be set below */
+		NULL,
 	};
 
 	ia32_setup_cg_config();

ir/be/mips/bearch_mips.c

@@ -978,11 +978,13 @@ static const backend_params *mips_get_libfirm_params(void) {
 	static backend_params p = {
 		1,     /* need dword lowering */
 		0,     /* don't support inline assembler yet */
+		0,     /* no immediate floating point mode. */
 		NULL,  /* no additional opcodes */
 		NULL,  /* will be set later */
 		NULL,  /* but yet no creator function */
 		NULL,  /* context for create_intrinsic_fkt */
 		NULL,  /* no if conversion settings */
+		NULL   /* no immediate fp mode */
 	};
 
 	return &p;

ir/be/ppc32/bearch_ppc32.c

@@ -913,12 +913,14 @@ static ir_graph **ppc32_get_irg_list(const void *self, ir_graph ***irg_list) {
 static const backend_params *ppc32_get_libfirm_params(void) {
 	static backend_params p = {
 		1,     /* need dword lowering */
-		0,     /* don't support inlien assembler yet */
+		0,     /* don't support inline assembler yet */
+		0,     /* no immediate floating point mode. */
 		NULL,  /* no additional opcodes */
 		NULL,  /* will be set later */
 		NULL,  /* but yet no creator function */
 		NULL,  /* context for create_intrinsic_fkt */
 		NULL,  /* no if conversion settings */
+		NULL   /* no immediate fp mode */
 	};
 
 	return &p;