X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=include%2Flibfirm%2Fbe.h;h=2b1760085873570f8c99080e3446978c7582b7b9;hb=f7a0dee11313faad6f2ff54edc8eaadabd03e433;hp=0d01226fd8714eb716010dd55334c242c323fbc7;hpb=82d3ed00d32d2d72f72c574590c403fb722b81b7;p=libfirm

diff --git a/include/libfirm/be.h b/include/libfirm/be.h
index 0d01226fd..2b1760085 100644
--- a/include/libfirm/be.h
+++ b/include/libfirm/be.h
@@ -26,11 +26,29 @@
 #ifndef FIRM_BE_MAIN_H
 #define FIRM_BE_MAIN_H
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #include <stdio.h>
 #include "irarch.h"
 #include "archop.h"
 #include "lowering.h"
 
+typedef enum {
+	ASM_CONSTRAINT_FLAG_SUPPORTS_REGISTER     = 0x0001,
+	ASM_CONSTRAINT_FLAG_SUPPORTS_MEMOP        = 0x0002,
+	ASM_CONSTRAINT_FLAG_SUPPORTS_IMMEDIATE    = 0x0004,
+	ASM_CONSTRAINT_FLAG_NO_SUPPORT            = 0x0008,
+	ASM_CONSTRAINT_FLAG_MODIFIER_WRITE        = 0x0010,
+	ASM_CONSTRAINT_FLAG_MODIFIER_NO_WRITE     = 0x0020,
+	ASM_CONSTRAINT_FLAG_MODIFIER_READ         = 0x0040,
+	ASM_CONSTRAINT_FLAG_MODIFIER_NO_READ      = 0x0080,
+	ASM_CONSTRAINT_FLAG_MODIFIER_EARLYCLOBBER = 0x0100,
+	ASM_CONSTRAINT_FLAG_MODIFIER_COMMUTATIVE  = 0x0200,
+	ASM_CONSTRAINT_FLAG_INVALID               = 0x8000
+} asm_constraint_flags_t;
+
 /**
  * This structure contains parameters that should be
  * propagated to the libFirm parameter set.
@@ -58,7 +76,8 @@ typedef struct backend_params {
 	/** 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. */
+	/** The immediate floating point mode. Temporaries are calculated using
+	 * this mode. */
 	ir_mode *imm_fp_mode;
 } backend_params;
 
@@ -85,7 +104,22 @@ const backend_params *be_get_backend_param(void);
  */
 void be_main(FILE *output, const char *compilation_unit_name);
 
+/**
+ * parse assembler constraint strings and returns flags (so the frontend knows
+ * which operands are inputs/outputs and whether memory is required)
+ */
+asm_constraint_flags_t be_parse_asm_constraints(const char *constraints);
+
+/**
+ * tests whether a string is a valid clobber in an ASM instruction
+ */
+int be_is_valid_clobber(const char *clobber);
+
 typedef struct be_main_env_t be_main_env_t;
 typedef struct be_options_t  be_options_t;
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif