* i386.h (VALID_FP_MODE_P): XFmode is invalid on x86_64. (MODES_TIEABLE_P): QImodes and DImodes are tiable on x86_64. (HARD_REGNO_CALLER_SAVE_MODE): Save QImodes as QImodes for x86_64. (STATIC_CHAIN_REGNUM): Set to r10 for x86_64. (PIC_OFFSET_TABLE_REGNUM): Set to INVALID_REGNUM for x86_64. (LIMIT_RELOAD_CLASS): Avoid limiting of QImodes on x86_64. (SECONDARY_OUTPUT_RELOAD_CLASS): No need to QImodes. (PUSH_ROUNDING): x86_64 rounds to 64bits. (CONSTANT_ADDRESS_P): Accept CONST_DOUBLE. (REGPARM_MAX): Set to 6 for x86_64. (SSE_REGPARM_MAX): Set to 16 for x86_64. * i386.c (hard_regno_mode_ok): QImodes can be in all general purpose registers. * (patterns that does use upper halves): Update constraints 'q' to 'Q' and 'r' to 'R'. (cmpqi_ext_1): Disable for 64bit. (cmpqi_ext_3_insn): Likewise. (movqi_extzv_1): Likewsie. (addqi_ext_1): Liekwsie (testqi_ext_1): Liekwsie (andqi_ext_1): Liekwsie (xorqi_ext_1): Liekwsie (cmpqi_ext_1_rex64): New. (cmpqi_ext_3_insn_rex64): Likewise. (movqi_extzv_1_rex64): Likewsie. (addqi_ext_1_rex64): Liekwsie (testqi_ext_1_rex64): Liekwsie (andqi_ext_1_rex64): Liekwsie (xorqi_ext_1_rex64): Liekwsie From-SVN: r40411
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