jdk8-mips64-public/hotspot: comparison src/share/vm/runtime/sharedRuntimeTrans.cpp

-:b6a8cc1e0d92
+:a073be2ce5c2
 // Enabling optimizations in this file causes incorrect code to be
 // generated; can not figure out how to turn down optimization for one
 // file in the IDE on Windows
 #ifdef WIN32
+# pragma warning( disable: 4748 ) // /GS can not protect parameters and local variables from local buffer overrun because optimizations are disabled in function
 # pragma optimize ( "", off )
 #endif
 #include "runtime/sharedRuntimeMath.hpp"
 static double __ieee754_log(double x) {
 double hfsq,f,s,z,R,w,t1,t2,dk;
 int k,hx,i,j;
 unsigned lx;
-hx = __HI(x);               /* high word of x */
+hx = high(x);               /* high word of x */
-lx = __LO(x);               /* low  word of x */
+lx = low(x);                /* low  word of x */
 k=0;
 if (hx < 0x00100000) {                   /* x < 2**-1022  */
 if (((hx&0x7fffffff)|lx)==0)
 return -two54/zero;             /* log(+-0)=-inf */
 if (hx<0) return (x-x)/zero;   /* log(-#) = NaN */
 k -= 54; x *= two54; /* subnormal number, scale up x */
-hx = __HI(x);             /* high word of x */
+hx = high(x);             /* high word of x */
 }
 if (hx >= 0x7ff00000) return x+x;
 k += (hx>>20)-1023;
 hx &= 0x000fffff;
 i = (hx+0x95f64)&0x100000;
-__HI(x) = hx|(i^0x3ff00000);        /* normalize x or x/2 */
+set_high(&x, hx|(i^0x3ff00000)); /* normalize x or x/2 */
 k += (i>>20);
 f = x-1.0;
 if((0x000fffff&(2+hx))<3) {  /* |f| < 2**-20 */
 if(f==zero) {
 if (k==0) return zero;
 static double __ieee754_log10(double x) {
 double y,z;
 int i,k,hx;
 unsigned lx;
-hx = __HI(x);       /* high word of x */
+hx = high(x);       /* high word of x */
-lx = __LO(x);       /* low word of x */
+lx = low(x);        /* low word of x */
 k=0;
 if (hx < 0x00100000) {                  /* x < 2**-1022  */
 if (((hx&0x7fffffff)|lx)==0)
 return -two54/zero;             /* log(+-0)=-inf */
 if (hx<0) return (x-x)/zero;        /* log(-#) = NaN */
 k -= 54; x *= two54; /* subnormal number, scale up x */
-hx = __HI(x);                /* high word of x */
+hx = high(x);                /* high word of x */
 }
 if (hx >= 0x7ff00000) return x+x;
 k += (hx>>20)-1023;
 i  = ((unsigned)k&0x80000000)>>31;
 hx = (hx&0x000fffff)|((0x3ff-i)<<20);
 y  = (double)(k+i);
-__HI(x) = hx;
+set_high(&x, hx);
 z  = y*log10_2lo + ivln10*__ieee754_log(x);
 return  z+y*log10_2hi;
 }
 JRT_LEAF(jdouble, SharedRuntime::dlog10(jdouble x))
 static double __ieee754_exp(double x) {
 double y,hi=0,lo=0,c,t;
 int k=0,xsb;
 unsigned hx;
-hx  = __HI(x);        /* high word of x */
+hx  = high(x);                /* high word of x */
 xsb = (hx>>31)&1;             /* sign bit of x */
 hx &= 0x7fffffff;             /* high word of |x| */
 /* filter out non-finite argument */
 if(hx >= 0x40862E42) {                        /* if |x|>=709.78... */
 if(hx>=0x7ff00000) {
-if(((hx&0xfffff)|__LO(x))!=0)
+if(((hx&0xfffff)|low(x))!=0)
 return x+x;             /* NaN */
 else return (xsb==0)? x:0.0;      /* exp(+-inf)={inf,0} */
 }
 if(x > o_threshold) return hugeX*hugeX; /* overflow */
 if(x < u_threshold) return twom1000*twom1000; /* underflow */
 t  = x*x;
 c  = x - t*(P1+t*(P2+t*(P3+t*(P4+t*P5))));
 if(k==0)      return one-((x*c)/(c-2.0)-x);
 else          y = one-((lo-(x*c)/(2.0-c))-hi);
 if(k >= -1021) {
-__HI(y) += (k<<20); /* add k to y's exponent */
+set_high(&y, high(y) + (k<<20)); /* add k to y's exponent */
 return y;
 } else {
-__HI(y) += ((k+1000)<<20);/* add k to y's exponent */
+set_high(&y, high(y) + ((k+1000)<<20)); /* add k to y's exponent */
 return y*twom1000;
 }
 }
 JRT_LEAF(jdouble, SharedRuntime::dexp(jdouble x))
 int i0,i1,i,j,k,yisint,n;
 int hx,hy,ix,iy;
 unsigned lx,ly;
 i0 = ((*(int*)&one)>>29)^1; i1=1-i0;
-hx = __HI(x); lx = __LO(x);
+hx = high(x); lx = low(x);
-hy = __HI(y); ly = __LO(y);
+hy = high(y); ly = low(y);
 ix = hx&0x7fffffff;  iy = hy&0x7fffffff;
 /* y==zero: x**0 = 1 */
 if((iy|ly)==0) return one;
 t = ax-one;         /* t has 20 trailing zeros */
 w = (t*t)*(0.5-t*(0.3333333333333333333333-t*0.25));
 u = ivln2_h*t;      /* ivln2_h has 21 sig. bits */
 v = t*ivln2_l-w*ivln2;
 t1 = u+v;
-__LO(t1) = 0;
+set_low(&t1, 0);
 t2 = v-(t1-u);
 } else {
 double ss,s2,s_h,s_l,t_h,t_l;
 n = 0;
 /* take care subnormal number */
 if(ix<0x00100000)
-{ax *= two53; n -= 53; ix = __HI(ax); }
+{ax *= two53; n -= 53; ix = high(ax); }
 n  += ((ix)>>20)-0x3ff;
 j  = ix&0x000fffff;
 /* determine interval */
 ix = j|0x3ff00000;          /* normalize ix */
 if(j<=0x3988E) k=0;         /* |x|<sqrt(3/2) */
 else if(j<0xBB67A) k=1;     /* |x|<sqrt(3)   */
 else {k=0;n+=1;ix -= 0x00100000;}
-__HI(ax) = ix;
+set_high(&ax, ix);
 /* compute ss = s_h+s_l = (x-1)/(x+1) or (x-1.5)/(x+1.5) */
 u = ax-bp[k];               /* bp[0]=1.0, bp[1]=1.5 */
 v = one/(ax+bp[k]);
 ss = u*v;
 s_h = ss;
-__LO(s_h) = 0;
+set_low(&s_h, 0);
 /* t_h=ax+bp[k] High */
 t_h = zeroX;
-__HI(t_h)=((ix>>1)|0x20000000)+0x00080000+(k<<18);
+set_high(&t_h, ((ix>>1)|0x20000000)+0x00080000+(k<<18));
 t_l = ax - (t_h-bp[k]);
 s_l = v*((u-s_h*t_h)-s_h*t_l);
 /* compute log(ax) */
 s2 = ss*ss;
 r = s2*s2*(L1X+s2*(L2X+s2*(L3X+s2*(L4X+s2*(L5X+s2*L6X)))));
 r += s_l*(s_h+ss);
 s2  = s_h*s_h;
 t_h = 3.0+s2+r;
-__LO(t_h) = 0;
+set_low(&t_h, 0);
 t_l = r-((t_h-3.0)-s2);
 /* u+v = ss*(1+...) */
 u = s_h*t_h;
 v = s_l*t_h+t_l*ss;
 /* 2/(3log2)*(ss+...) */
 p_h = u+v;
-__LO(p_h) = 0;
+set_low(&p_h, 0);
 p_l = v-(p_h-u);
 z_h = cp_h*p_h;             /* cp_h+cp_l = 2/(3*log2) */
 z_l = cp_l*p_h+p_l*cp+dp_l[k];
 /* log2(ax) = (ss+..)*2/(3*log2) = n + dp_h + z_h + z_l */
 t = (double)n;
 t1 = (((z_h+z_l)+dp_h[k])+t);
-__LO(t1) = 0;
+set_low(&t1, 0);
 t2 = z_l-(((t1-t)-dp_h[k])-z_h);
 }
 /* split up y into y1+y2 and compute (y1+y2)*(t1+t2) */
 y1  = y;
-__LO(y1) = 0;
+set_low(&y1, 0);
 p_l = (y-y1)*t1+y*t2;
 p_h = y1*t1;
 z = p_l+p_h;
-j = __HI(z);
+j = high(z);
-i = __LO(z);
+i = low(z);
 if (j>=0x40900000) {                          /* z >= 1024 */
 if(((j-0x40900000)|i)!=0)                   /* if z > 1024 */
 return s*hugeX*hugeX;                     /* overflow */
 else {
 if(p_l+ovt>z-p_h) return s*hugeX*hugeX;   /* overflow */
 n = 0;
 if(i>0x3fe00000) {            /* if |z| > 0.5, set n = [z+0.5] */
 n = j+(0x00100000>>(k+1));
 k = ((n&0x7fffffff)>>20)-0x3ff;     /* new k for n */
 t = zeroX;
-__HI(t) = (n&~(0x000fffff>>k));
+set_high(&t, (n&~(0x000fffff>>k)));
 n = ((n&0x000fffff)|0x00100000)>>(20-k);
 if(j<0) n = -n;
 p_h -= t;
 }
 t = p_l+p_h;
-__LO(t) = 0;
+set_low(&t, 0);
 u = t*lg2_h;
 v = (p_l-(t-p_h))*lg2+t*lg2_l;
 z = u+v;
 w = v-(z-u);
 t  = z*z;
 t1  = z - t*(P1+t*(P2+t*(P3+t*(P4+t*P5))));
 r  = (z*t1)/(t1-two)-(w+z*w);
 z  = one-(r-z);
-j  = __HI(z);
+j  = high(z);
 j += (n<<20);
 if((j>>20)<=0) z = scalbnA(z,n);       /* subnormal output */
-else __HI(z) += (n<<20);
+else set_high(&z, high(z) + (n<<20));
 return s*z;
 }
 JRT_LEAF(jdouble, SharedRuntime::dpow(jdouble x, jdouble y))

Mercurial > jdk8-mips64-public > hotspot / file comparison

comparison: src/share/vm/runtime/sharedRuntimeTrans.cpp

src/share/vm/runtime/sharedRuntimeTrans.cpp