diff options
Diffstat (limited to 'gnu/usr.bin')
-rw-r--r-- | gnu/usr.bin/gcc/config/m68k/m68k.h | 23 | ||||
-rw-r--r-- | gnu/usr.bin/gcc/config/m68k/m68k.md | 40 |
2 files changed, 41 insertions, 22 deletions
diff --git a/gnu/usr.bin/gcc/config/m68k/m68k.h b/gnu/usr.bin/gcc/config/m68k/m68k.h index 76d85d85e57..296fa0f8c75 100644 --- a/gnu/usr.bin/gcc/config/m68k/m68k.h +++ b/gnu/usr.bin/gcc/config/m68k/m68k.h @@ -90,9 +90,17 @@ extern int target_flags; run on a 68030 and 68881/2. */ #define TARGET_68040 (target_flags & 01400) -/* Use the 68040-only fp instructions (-m68040). */ +/* Use the 68040-only fp instructions (-m68040 or -m68060). */ #define TARGET_68040_ONLY (target_flags & 01000) +/* Optimize for 68060, but still allow execution on 68020 + (-m68060). + The 68060 will execute all 68030 and 68881/2 instructions, but some + of them must be emulated in software by the OS. When TARGET_68060 is + turned on, these instructions won't be used. This code will still + run on a 68030 and 68881/2. */ +#define TARGET_68060 (target_flags & 02000) + /* Macro to define tables used to set the flags. This is a list in braces of pairs in braces, each pair being { "NAME", VALUE } @@ -100,15 +108,15 @@ extern int target_flags; An empty string NAME is used to identify the default VALUE. */ #define TARGET_SWITCHES \ - { { "68020", -01400}, \ - { "c68020", -01400}, \ + { { "68020", -03400}, \ + { "c68020", -03400}, \ { "68020", 5}, \ { "c68020", 5}, \ { "68881", 2}, \ { "bitfield", 4}, \ - { "68000", -01405}, \ - { "c68000", -01405}, \ - { "soft-float", -01102}, \ + { "68000", -03405}, \ + { "c68000", -03405}, \ + { "soft-float", -03102}, \ { "nobitfield", -4}, \ { "rtd", 8}, \ { "nortd", -8}, \ @@ -119,9 +127,10 @@ extern int target_flags; { "sky", 0200}, \ { "nosky", -0200}, \ { "68020-40", 0407}, \ - { "68030", -01400}, \ + { "68030", -03400}, \ { "68030", 5}, \ { "68040", 01007}, \ + { "68060", 03007}, \ { "68851", 0}, /* Affects *_SPEC and/or GAS. */ \ { "no-68851", 0}, /* Affects *_SPEC and/or GAS. */ \ { "68302", 0}, /* Affects *_SPEC and/or GAS. */ \ diff --git a/gnu/usr.bin/gcc/config/m68k/m68k.md b/gnu/usr.bin/gcc/config/m68k/m68k.md index d73c0886c94..00175e7c2d9 100644 --- a/gnu/usr.bin/gcc/config/m68k/m68k.md +++ b/gnu/usr.bin/gcc/config/m68k/m68k.md @@ -92,6 +92,16 @@ ;;- into play by defining "%$" and "%&" to expand to "s" and "d" rather ;;- than "". +;;- Information about 68060 port. + +;;- The 68060 executes all 68030 and 68881/2 instructions, but some must +;;- be emulated in software by the OS. It is faster to avoid these +;;- instructions and issue a library call rather than trapping into +;;- the kernel. The affected instructions are: divs.l <ea>,Dr:Dq; +;;- divu.l <ea>,Dr:Dq; muls.l <ea>,Dr:Dq; mulu.l <ea>,Dr:Dq, fintrz; +;;- and fscale. The TARGET_68060 flag turns the use of the opcodes +;;- off. + ;;- FPA port explanation: @@ -1906,7 +1916,7 @@ (define_insn "ftruncdf2" [(set (match_operand:DF 0 "general_operand" "=f") (fix:DF (match_operand:DF 1 "general_operand" "fFm")))] - "TARGET_68881 && !TARGET_68040" + "TARGET_68881 && !TARGET_68040 && !TARGET_68060" "* { if (FP_REG_P (operands[1])) @@ -1917,7 +1927,7 @@ (define_insn "ftruncsf2" [(set (match_operand:SF 0 "general_operand" "=f") (fix:SF (match_operand:SF 1 "general_operand" "dfFm")))] - "TARGET_68881 && !TARGET_68040" + "TARGET_68881 && !TARGET_68040 && !TARGET_68060" "* { if (FP_REG_P (operands[1])) @@ -2939,7 +2949,7 @@ (truncate:SI (lshiftrt:DI (mult:DI (zero_extend:DI (match_dup 1)) (zero_extend:DI (match_dup 2))) (const_int 32))))])] - "TARGET_68020" + "TARGET_68020 && !TARGET_68060" "") (define_insn "" @@ -2950,7 +2960,7 @@ (truncate:SI (lshiftrt:DI (mult:DI (zero_extend:DI (match_dup 1)) (zero_extend:DI (match_dup 2))) (const_int 32))))] - "TARGET_68020" + "TARGET_68020 && !TARGET_68060" "mulu%.l %2,%3:%0") ; Match immediate case. For 2.4 only match things < 2^31. @@ -2965,7 +2975,7 @@ (truncate:SI (lshiftrt:DI (mult:DI (zero_extend:DI (match_dup 1)) (match_dup 2)) (const_int 32))))] - "TARGET_68020 + "TARGET_68020 && !TARGET_68060 && (unsigned) INTVAL (operands[2]) <= 0x7fffffff" "mulu%.l %2,%3:%0") @@ -2978,7 +2988,7 @@ (truncate:SI (lshiftrt:DI (mult:DI (sign_extend:DI (match_dup 1)) (sign_extend:DI (match_dup 2))) (const_int 32))))])] - "TARGET_68020" + "TARGET_68020 && !TARGET_68060" "") (define_insn "" @@ -2989,7 +2999,7 @@ (truncate:SI (lshiftrt:DI (mult:DI (sign_extend:DI (match_dup 1)) (sign_extend:DI (match_dup 2))) (const_int 32))))] - "TARGET_68020" + "TARGET_68020 && !TARGET_68060" "muls%.l %2,%3:%0") (define_insn "" @@ -3000,7 +3010,7 @@ (truncate:SI (lshiftrt:DI (mult:DI (sign_extend:DI (match_dup 1)) (match_dup 2)) (const_int 32))))] - "TARGET_68020 + "TARGET_68020 && !TARGET_68060 /* This test is a noop on 32 bit machines, but important for a cross-compiler hosted on 64-bit machines. */ && INTVAL (operands[2]) <= 0x7fffffff @@ -3016,7 +3026,7 @@ (zero_extend:DI (match_operand:SI 2 "general_operand" ""))) (const_int 32)))) (clobber (match_dup 3))])] - "TARGET_68020" + "TARGET_68020 && !TARGET_68060" " { operands[3] = gen_reg_rtx (SImode); @@ -3040,7 +3050,7 @@ (zero_extend:DI (match_operand:SI 3 "nonimmediate_operand" "dm"))) (const_int 32)))) (clobber (match_operand:SI 1 "register_operand" "=d"))] - "TARGET_68020" + "TARGET_68020 && !TARGET_68060" "mulu%.l %3,%0:%1") (define_insn "const_umulsi3_highpart" @@ -3051,7 +3061,7 @@ (match_operand 3 "const_uint32_operand" "")) (const_int 32)))) (clobber (match_operand:SI 1 "register_operand" "=d"))] - "TARGET_68020" + "TARGET_68020 && !TARGET_68060" "mulu%.l %3,%0:%1") (define_expand "smulsi3_highpart" @@ -3063,7 +3073,7 @@ (sign_extend:DI (match_operand:SI 2 "general_operand" ""))) (const_int 32)))) (clobber (match_dup 3))])] - "TARGET_68020" + "TARGET_68020 && !TARGET_68060" " { operands[3] = gen_reg_rtx (SImode); @@ -3087,7 +3097,7 @@ (sign_extend:DI (match_operand:SI 3 "nonimmediate_operand" "dm"))) (const_int 32)))) (clobber (match_operand:SI 1 "register_operand" "=d"))] - "TARGET_68020" + "TARGET_68020 && !TARGET_68060" "muls%.l %3,%0:%1") (define_insn "const_smulsi3_highpart" @@ -3098,7 +3108,7 @@ (match_operand 3 "const_sint32_operand" "")) (const_int 32)))) (clobber (match_operand:SI 1 "register_operand" "=d"))] - "TARGET_68020" + "TARGET_68020 && !TARGET_68060" "muls%.l %3,%0:%1") (define_expand "muldf3" @@ -3155,7 +3165,7 @@ "* { if (GET_CODE (operands[2]) == CONST_DOUBLE - && floating_exact_log2 (operands[2]) && !TARGET_68040) + && floating_exact_log2 (operands[2]) && !TARGET_68040 && !TARGET_68060) { int i = floating_exact_log2 (operands[2]); operands[2] = gen_rtx (CONST_INT, VOIDmode, i); |