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comparison src/share/vm/runtime/sharedRuntimeTrig.cpp @ 1485:fb57d4cf76c2

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6931180: Migration to recent versions of MS Platform SDK 6951582: Build problems on win64 Summary: Changes to enable building JDK7 with Microsoft Visual Studio 2010 Reviewed-by: ohair, art, ccheung, dcubed
author prr
date Tue, 11 May 2010 14:35:43 -0700
parents a61af66fc99e
children c18cbe5936b8
comparison
equal deleted inserted replaced
1403:3221d1887d30 1485:fb57d4cf76c2
37 // Enabling optimizations in this file causes incorrect code to be 37 // Enabling optimizations in this file causes incorrect code to be
38 // generated; can not figure out how to turn down optimization for one 38 // generated; can not figure out how to turn down optimization for one
39 // file in the IDE on Windows 39 // file in the IDE on Windows
40 #ifdef WIN32 40 #ifdef WIN32
41 # pragma optimize ( "", off ) 41 # pragma optimize ( "", off )
42 #endif
43
44 /* The above workaround now causes more problems with the latest MS compiler.
45 * Visual Studio 2010's /GS option tries to guard against buffer overruns.
46 * /GS is on by default if you specify optimizations, which we do globally
47 * via /W3 /O2. However the above selective turning off of optimizations means
48 * that /GS issues a warning "4748". And since we treat warnings as errors (/WX)
49 * then the compilation fails. There are several possible solutions
50 * (1) Remove that pragma above as obsolete with VS2010 - requires testing.
51 * (2) Stop treating warnings as errors - would be a backward step
52 * (3) Disable /GS - may help performance but you lose the security checks
53 * (4) Disable the warning with "#pragma warning( disable : 4748 )"
54 * (5) Disable planting the code with __declspec(safebuffers)
55 * I've opted for (5) although we should investigate the local performance
56 * benefits of (1) and global performance benefit of (3).
57 */
58 #if defined(WIN32) && (defined(_MSC_VER) && (_MSC_VER >= 1600))
59 #define SAFEBUF __declspec(safebuffers)
60 #else
61 #define SAFEBUF
42 #endif 62 #endif
43 63
44 #include <math.h> 64 #include <math.h>
45 65
46 // VM_LITTLE_ENDIAN is #defined appropriately in the Makefiles 66 // VM_LITTLE_ENDIAN is #defined appropriately in the Makefiles
233 zeroB = 0.0, 253 zeroB = 0.0,
234 one = 1.0, 254 one = 1.0,
235 two24B = 1.67772160000000000000e+07, /* 0x41700000, 0x00000000 */ 255 two24B = 1.67772160000000000000e+07, /* 0x41700000, 0x00000000 */
236 twon24 = 5.96046447753906250000e-08; /* 0x3E700000, 0x00000000 */ 256 twon24 = 5.96046447753906250000e-08; /* 0x3E700000, 0x00000000 */
237 257
238 static int __kernel_rem_pio2(double *x, double *y, int e0, int nx, int prec, const int *ipio2) { 258 static SAFEBUF int __kernel_rem_pio2(double *x, double *y, int e0, int nx, int prec, const int *ipio2) {
239 int jz,jx,jv,jp,jk,carry,n,iq[20],i,j,k,m,q0,ih; 259 int jz,jx,jv,jp,jk,carry,n,iq[20],i,j,k,m,q0,ih;
240 double z,fw,f[20],fq[20],q[20]; 260 double z,fw,f[20],fq[20],q[20];
241 261
242 /* initialize jk*/ 262 /* initialize jk*/
243 jk = init_jk[prec]; 263 jk = init_jk[prec];
449 pio2_2 = 6.07710050630396597660e-11, /* 0x3DD0B461, 0x1A600000 */ 469 pio2_2 = 6.07710050630396597660e-11, /* 0x3DD0B461, 0x1A600000 */
450 pio2_2t = 2.02226624879595063154e-21, /* 0x3BA3198A, 0x2E037073 */ 470 pio2_2t = 2.02226624879595063154e-21, /* 0x3BA3198A, 0x2E037073 */
451 pio2_3 = 2.02226624871116645580e-21, /* 0x3BA3198A, 0x2E000000 */ 471 pio2_3 = 2.02226624871116645580e-21, /* 0x3BA3198A, 0x2E000000 */
452 pio2_3t = 8.47842766036889956997e-32; /* 0x397B839A, 0x252049C1 */ 472 pio2_3t = 8.47842766036889956997e-32; /* 0x397B839A, 0x252049C1 */
453 473
454 static int __ieee754_rem_pio2(double x, double *y) { 474 static SAFEBUF int __ieee754_rem_pio2(double x, double *y) {
455 double z,w,t,r,fn; 475 double z,w,t,r,fn;
456 double tx[3]; 476 double tx[3];
457 int e0,i,j,nx,n,ix,hx,i0; 477 int e0,i,j,nx,n,ix,hx,i0;
458 478
459 i0 = ((*(int*)&two24A)>>30)^1; /* high word index */ 479 i0 = ((*(int*)&two24A)>>30)^1; /* high word index */