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Linux/arch/mips/include/asm/compiler.h

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  1 /*
  2  * Copyright (C) 2004, 2007  Maciej W. Rozycki
  3  *
  4  * This file is subject to the terms and conditions of the GNU General Public
  5  * License.  See the file "COPYING" in the main directory of this archive
  6  * for more details.
  7  */
  8 #ifndef _ASM_COMPILER_H
  9 #define _ASM_COMPILER_H
 10 
 11 #if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4)
 12 #define GCC_IMM_ASM() "n"
 13 #define GCC_REG_ACCUM "$0"
 14 #else
 15 #define GCC_IMM_ASM() "rn"
 16 #define GCC_REG_ACCUM "accum"
 17 #endif
 18 
 19 #ifdef CONFIG_CPU_MIPSR6
 20 /* All MIPS R6 toolchains support the ZC constrain */
 21 #define GCC_OFF_SMALL_ASM() "ZC"
 22 #else
 23 #ifndef CONFIG_CPU_MICROMIPS
 24 #define GCC_OFF_SMALL_ASM() "R"
 25 #elif __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 9)
 26 #define GCC_OFF_SMALL_ASM() "ZC"
 27 #else
 28 #error "microMIPS compilation unsupported with GCC older than 4.9"
 29 #endif /* CONFIG_CPU_MICROMIPS */
 30 #endif /* CONFIG_CPU_MIPSR6 */
 31 
 32 #ifdef CONFIG_CPU_MIPSR6
 33 #define MIPS_ISA_LEVEL "mips64r6"
 34 #define MIPS_ISA_ARCH_LEVEL MIPS_ISA_LEVEL
 35 #define MIPS_ISA_LEVEL_RAW mips64r6
 36 #define MIPS_ISA_ARCH_LEVEL_RAW MIPS_ISA_LEVEL_RAW
 37 #else
 38 /* MIPS64 is a superset of MIPS32 */
 39 #define MIPS_ISA_LEVEL "mips64r2"
 40 #define MIPS_ISA_ARCH_LEVEL "arch=r4000"
 41 #define MIPS_ISA_LEVEL_RAW mips64r2
 42 #define MIPS_ISA_ARCH_LEVEL_RAW MIPS_ISA_LEVEL_RAW
 43 #endif /* CONFIG_CPU_MIPSR6 */
 44 
 45 #endif /* _ASM_COMPILER_H */
 46 

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