| author | pcpa <paulo.cesar.pereira.de.andrade@gmail.com> | 2023年02月06日 14:45:28 -0300 |
|---|---|---|
| committer | pcpa <paulo.cesar.pereira.de.andrade@gmail.com> | 2023年02月06日 14:45:28 -0300 |
| commit | 8b7e535a47989ffb480ec7e9f2dd38cbe5f3c41c (patch) | |
| tree | af71008004dede44194477e6ce1fc731570b0d49 /lib/jit_arm-cpu.c | |
| parent | cf22f8f7667cbb2907dd92f1352451c263947536 (diff) | |
| download | lightning-8b7e535a47989ffb480ec7e9f2dd38cbe5f3c41c.tar.gz | |
| -rw-r--r-- | lib/jit_arm-cpu.c | 58 |
diff --git a/lib/jit_arm-cpu.c b/lib/jit_arm-cpu.c index 3f40948..c5675be 100644 --- a/lib/jit_arm-cpu.c +++ b/lib/jit_arm-cpu.c @@ -140,6 +140,8 @@ extern unsigned __aeabi_uidivmod(unsigned, unsigned); # define THUMB2_UMULL 0xfba00000 # define ARM_SMULL 0x00c00090 # define THUMB2_SMULL 0xfb800000 +# define ARM_SDIV 0x07100010 +# define ARM_UDIV 0x07300010 # define THUMB2_SDIV 0xfb90f0f0 # define THUMB2_UDIV 0xfbb0f0f0 # define ARM_AND 0x00000000 @@ -523,6 +525,10 @@ static void _tdmb(jit_state_t *_jit, int im); # define CC_UMULL(cc,rl,rh,rn,rm) corrrr(cc,ARM_UMULL,rh,rl,rm,rn) # define UMULL(rl,rh,rn,rm) CC_UMULL(ARM_CC_AL,rl,rh,rn,rm) # define T2_UMULL(rl,rh,rn,rm) torrrr(THUMB2_UMULL,rn,rl,rh,rm) +# define CC_SDIV(cc,rd,rn,rm) corrrr(cc,ARM_SDIV,rd,15,rn,rm) +# define SDIV(rd,rn,rm) CC_SDIV(ARM_CC_AL,rd,rm,rn) +# define CC_UDIV(cc,rd,rn,rm) corrrr(cc,ARM_UDIV,rd,15,rn,rm) +# define UDIV(rd,rn,rm) CC_UDIV(ARM_CC_AL,rd,rm,rn) # define T2_SDIV(rd,rn,rm) torrr(THUMB2_SDIV,rn,rd,rm) # define T2_UDIV(rd,rn,rm) torrr(THUMB2_UDIV,rn,rd,rm) # define CC_AND(cc,rd,rn,rm) corrr(cc,ARM_AND,rn,rd,rm) @@ -2233,8 +2239,12 @@ _divrem(jit_state_t *_jit, int div, int sign, static void _divr(jit_state_t *_jit, jit_int32_t r0, jit_int32_t r1, jit_int32_t r2) { - if (jit_armv7r_p() && jit_thumb_p()) - T2_SDIV(r0, r1, r2); + if (jit_armv7r_p()) { + if (jit_thumb_p()) + T2_SDIV(r0, r1, r2); + else + SDIV(r0, r1, r2); + } else divrem(1, 1, r0, r1, r2); } @@ -2252,8 +2262,12 @@ _divi(jit_state_t *_jit, jit_int32_t r0, jit_int32_t r1, jit_word_t i0) static void _divr_u(jit_state_t *_jit, jit_int32_t r0, jit_int32_t r1, jit_int32_t r2) { - if (jit_armv7r_p() && jit_thumb_p()) - T2_UDIV(r0, r1, r2); + if (jit_armv7r_p()) { + if (jit_thumb_p()) + T2_UDIV(r0, r1, r2); + else + UDIV(r0, r1, r2); + } else divrem(1, 0, r0, r1, r2); } @@ -2313,7 +2327,23 @@ _iqdivi(jit_state_t *_jit, jit_int32_t r0, jit_int32_t r1, static void _remr(jit_state_t *_jit, jit_int32_t r0, jit_int32_t r1, jit_int32_t r2) { - divrem(0, 1, r0, r1, r2); + if (jit_armv7r_p()) { + jit_int32_t reg; + if (r0 == r1 || r0 == r2) { + reg = jit_get_reg(jit_class_gpr); + divr(rn(reg), r1, r2); + mulr(rn(reg), r2, rn(reg)); + subr(r0, r1, rn(reg)); + jit_unget_reg(reg); + } + else { + divr(r0, r1, r2); + mulr(r0, r2, r0); + subr(r0, r1, r0); + } + } + else + divrem(0, 1, r0, r1, r2); } static void @@ -2329,7 +2359,23 @@ _remi(jit_state_t *_jit, jit_int32_t r0, jit_int32_t r1, jit_word_t i0) static void _remr_u(jit_state_t *_jit, jit_int32_t r0, jit_int32_t r1, jit_int32_t r2) { - divrem(0, 0, r0, r1, r2); + if (jit_armv7r_p()) { + jit_int32_t reg; + if (r0 == r1 || r0 == r2) { + reg = jit_get_reg(jit_class_gpr); + divr_u(rn(reg), r1, r2); + mulr(rn(reg), r2, rn(reg)); + subr(r0, r1, rn(reg)); + jit_unget_reg(reg); + } + else { + divr_u(r0, r1, r2); + mulr(r0, r2, r0); + subr(r0, r1, r0); + } + } + else + divrem(0, 0, r0, r1, r2); } static void |