Merge pull request #654 from pcercuei/lightrec-mmap-zero

[pcsx_rearmed.git] / deps / lightning / lib / jit_mips-cpu.c

diff --git a/deps/lightning/lib/jit_mips-cpu.c b/deps/lightning/lib/jit_mips-cpu.c
index 8fb7fa1..119547d 100644 (file)
--- a/deps/lightning/lib/jit_mips-cpu.c
+++ b/deps/lightning/lib/jit_mips-cpu.c
@@ -107,6 +107,10 @@ typedef union {
 #  endif
 #  define can_sign_extend_short_p(im)  ((im) >= -32678 && (im) <= 32767)
 #  define can_zero_extend_short_p(im)  ((im) >= 0 && (im) <= 65535)
+#  define is_low_mask(im)              (((im) & 1) ? (__builtin_popcountl((im) + 1) == 1) : 0)
+#  define is_high_mask(im)             ((im) ? (__builtin_popcountl((im) + (1 << __builtin_ctzl(im))) == 0) : 0)
+#  define masked_bits_count(im)                __builtin_popcountl(im)
+#  define unmasked_bits_count(im)      (__WORDSIZE - masked_bits_count(im))
 #  if __WORDSIZE == 32
 #    define can_sign_extend_int_p(im)  1
 #    define can_zero_extend_int_p(im)  1
@@ -340,8 +344,10 @@ static void _nop(jit_state_t*,jit_int32_t);
 #  define DSRLV(rd,rt,rs)              rrr_t(rs,rt,rd,MIPS_DSRLV)
 #  define DSRL(rd,rt,sa)               rrit(rt,rd,sa,MIPS_DSRL)
 #  define DSRL32(rd,rt,sa)             rrit(rt,rd,sa,MIPS_DSRL32)
-#  define INS(rt,rs,pos,size)          hrrrit(MIPS_SPECIAL3,rs,rt,pos,pos+size-1,MIPS_INS)
-#  define DINS(rt,rs,pos,size)         hrrrit(MIPS_SPECIAL3,rs,rt,pos,pos+size-1,MIPS_DINS)
+#  define INS(rt,rs,pos,size)          hrrrit(MIPS_SPECIAL3,rs,rt,pos+size-1,pos,MIPS_INS)
+#  define DINS(rt,rs,pos,size)         hrrrit(MIPS_SPECIAL3,rs,rt,pos+size-1,pos,MIPS_DINS)
+#  define EXT(rt,rs,pos,size)          hrrrit(MIPS_SPECIAL3,rs,rt,size-1,pos,MIPS_EXT)
+#  define DEXT(rt,rs,pos,size)         hrrrit(MIPS_SPECIAL3,rs,rt,size-1,pos,MIPS_DEXT)
 #  define ROTR(rd,rt,sa)               hrrrit(MIPS_SPECIAL,1,rt,rd,sa,MIPS_SRL)
 #  define DROTR(rd,rt,sa)              hrrrit(MIPS_SPECIAL,1,rt,rd,sa,MIPS_DSRL)
 #  define MFHI(rd)                     rrr_t(_ZERO_REGNO,_ZERO_REGNO,rd,MIPS_MFHI)
@@ -385,6 +391,7 @@ static void _nop(jit_state_t*,jit_int32_t);
 #   define JR(r0)                      hrrrit(MIPS_SPECIAL,r0,0,0,0,MIPS_JR)
 #  endif
 #  define J(i0)                                hi(MIPS_J,i0)
+#  define MOVN(rd,rs,rt)               hrrrit(0,rs,rt,rd,0,MIPS_MOVN)
 #  define MOVZ(rd,rs,rt)               hrrrit(0,rs,rt,rd,0,MIPS_MOVZ)
 #  define comr(r0,r1)                  xori(r0,r1,-1)
 #  define negr(r0,r1)                  subr(r0,_ZERO_REGNO,r1)
@@ -494,11 +501,14 @@ static void _ori(jit_state_t*,jit_int32_t,jit_int32_t,jit_word_t);
 #  define xorr(r0,r1,r2)               XOR(r0,r1,r2)
 #  define xori(r0,r1,i0)               _xori(_jit,r0,r1,i0)
 static void _xori(jit_state_t*,jit_int32_t,jit_int32_t,jit_word_t);
-#  define movr(r0,r1)                  orr(r0,r1,_ZERO_REGNO)
+#  define movr(r0,r1)                  _movr(_jit,r0,r1)
+static void _movr(jit_state_t*,jit_int32_t,jit_int32_t);
 #  define movi(r0,i0)                  _movi(_jit,r0,i0)
 static void _movi(jit_state_t*,jit_int32_t,jit_word_t);
 #  define movi_p(r0,i0)                        _movi_p(_jit,r0,i0)
 static jit_word_t _movi_p(jit_state_t*,jit_int32_t,jit_word_t);
+#  define movnr(r0,r1,r2)              MOVN(r0, r1, r2)
+#  define movzr(r0,r1,r2)              MOVZ(r0, r1, r2)
 #  define ldr_c(r0,r1)                 LB(r0,0,r1)
 #  define ldi_c(r0,i0)                 _ldi_c(_jit,r0,i0)
 static void _ldi_c(jit_state_t*,jit_int32_t,jit_word_t);
@@ -1160,7 +1170,20 @@ _andi(jit_state_t *_jit, jit_int32_t r0, jit_int32_t r1, jit_word_t i0)
     jit_int32_t                reg;
     if (can_zero_extend_short_p(i0))
        ANDI(r0, r1, i0);
-    else {
+    else if (is_low_mask(i0)) {
+#if defined(_MIPS_ARCH_MIPS32R2) || defined(_MIPS_ARCH_MIPS64R2)
+       if (masked_bits_count(i0) <= 32)
+           EXT(r0, r1, 0, masked_bits_count(i0));
+       else
+#endif
+       {
+               lshi(r0, r1, unmasked_bits_count(i0));
+               rshi_u(r0, r0, unmasked_bits_count(i0));
+       }
+    } else if (is_high_mask(i0)) {
+       rshi(r0, r1, unmasked_bits_count(i0));
+       lshi(r0, r0, unmasked_bits_count(i0));
+    } else {
        reg = jit_get_reg(jit_class_gpr);
        movi(rn(reg), i0);
        AND(r0, r1, rn(reg));
@@ -1196,6 +1219,13 @@ _xori(jit_state_t *_jit, jit_int32_t r0, jit_int32_t r1, jit_word_t i0)
     }
 }
 
+static void
+_movr(jit_state_t *_jit, jit_int32_t r0, jit_int32_t r1)
+{
+    if (r0 != r1)
+       orr(r0, r1, _ZERO_REGNO);
+}
+
 static void
 _movi(jit_state_t *_jit, jit_int32_t r0, jit_word_t i0)
 {
@@ -2869,10 +2899,11 @@ _bmci(jit_state_t *_jit, jit_word_t i0, jit_int32_t r0, jit_word_t i1)
 static void
 _callr(jit_state_t *_jit, jit_int32_t r0)
 {
+    JALR(r0);
     if (r0 != _T9_REGNO)
        movr(_T9_REGNO, r0);
-    JALR(r0);
-    NOP(1);
+    else
+       NOP(1);
 }
 
 static void