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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2023-08-18 14:49:31 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2023-08-25 10:07:24 -0300 |
| commit | 87ced255bdf2681f5bf6c89d7121e59f6f342161 (patch) | |
| tree | bdccfdce434b611a14d1596f1ef67f6a9d1cb947 /sysdeps/m68k | |
| parent | b85880633f69b737050c22eede858f8c13bb2248 (diff) | |
| download | glibc-87ced255bdf2681f5bf6c89d7121e59f6f342161.tar.gz glibc-87ced255bdf2681f5bf6c89d7121e59f6f342161.tar.xz glibc-87ced255bdf2681f5bf6c89d7121e59f6f342161.zip | |
m68k: Use M68K_SCALE_AVAILABLE on __mpn_lshift and __mpn_rshift
This patch adds a new macro, M68K_SCALE_AVAILABLE, similar to gmp scale_available_p (mpn/m68k/m68k-defs.m4) that expand to 1 if a scale factor can be used in addressing modes. This is used instead of __mc68020__ for some optimization decisions. Checked on a build for m68k-linux-gnu target mc68020 and mc68040.
Diffstat (limited to 'sysdeps/m68k')
| -rw-r--r-- | sysdeps/m68k/m680x0/lshift.S | 6 | ||||
| -rw-r--r-- | sysdeps/m68k/m680x0/rshift.S | 8 | ||||
| -rw-r--r-- | sysdeps/m68k/m680x0/sysdep.h | 7 |
3 files changed, 14 insertions, 7 deletions
diff --git a/sysdeps/m68k/m680x0/lshift.S b/sysdeps/m68k/m680x0/lshift.S index 4240738959..74de90380b 100644 --- a/sysdeps/m68k/m680x0/lshift.S +++ b/sysdeps/m68k/m680x0/lshift.S @@ -57,9 +57,9 @@ ENTRY(__mpn_lshift) bne L(Lnormal) cmpl R(s_ptr),R(res_ptr) bls L(Lspecial) /* jump if s_ptr >= res_ptr */ -#if (defined (__mc68020__) || defined (__NeXT__) || defined(mc68020)) +#if M68K_SCALE_AVAILABLE lea MEM_INDX1(s_ptr,s_size,l,4),R(a2) -#else /* not mc68020 */ +#else movel R(s_size),R(d0) asll #2,R(d0) lea MEM_INDX(s_ptr,d0,l),R(a2) @@ -71,7 +71,7 @@ L(Lnormal:) moveql #32,R(d5) subl R(cnt),R(d5) -#if (defined (__mc68020__) || defined (__NeXT__) || defined(mc68020)) +#if M68K_SCALE_AVAILABLE lea MEM_INDX1(s_ptr,s_size,l,4),R(s_ptr) lea MEM_INDX1(res_ptr,s_size,l,4),R(res_ptr) #else /* not mc68000 */ diff --git a/sysdeps/m68k/m680x0/rshift.S b/sysdeps/m68k/m680x0/rshift.S index d56a2b4a44..d398d0287e 100644 --- a/sysdeps/m68k/m680x0/rshift.S +++ b/sysdeps/m68k/m680x0/rshift.S @@ -56,9 +56,9 @@ ENTRY(__mpn_rshift) bne L(Lnormal) cmpl R(res_ptr),R(s_ptr) bls L(Lspecial) /* jump if res_ptr >= s_ptr */ -#if (defined (__mc68020__) || defined (__NeXT__) || defined(mc68020)) +#if M68K_SCALE_AVAILABLE lea MEM_INDX1(res_ptr,s_size,l,4),R(a2) -#else /* not mc68020 */ +#else movel R(s_size),R(d0) asll #2,R(d0) lea MEM_INDX(res_ptr,d0,l),R(a2) @@ -121,10 +121,10 @@ L(Lend:) cfi_restore_state L(Lspecial:) -#if (defined (__mc68020__) || defined (__NeXT__) || defined(mc68020)) +#if M68K_SCALE_AVAILABLE lea MEM_INDX1(s_ptr,s_size,l,4),R(s_ptr) lea MEM_INDX1(res_ptr,s_size,l,4),R(res_ptr) -#else /* not mc68000 */ +#else movel R(s_size),R(d0) asll #2,R(d0) addl R(d0),R(s_ptr) diff --git a/sysdeps/m68k/m680x0/sysdep.h b/sysdeps/m68k/m680x0/sysdep.h index b31e101273..bee5b3391c 100644 --- a/sysdeps/m68k/m680x0/sysdep.h +++ b/sysdeps/m68k/m680x0/sysdep.h @@ -37,3 +37,10 @@ OP " " SRC "(" PC "), " DST #endif /* __ASSEMBLER__ */ + +# if defined __mc68020__ || defined __mc68030__ || defined __mc68040__ \ + || defined __mc68060__ +# define M68K_SCALE_AVAILABLE 1 +# else +# define M68K_SCALE_AVAILABLE 0 +# endif |