Mercurial > hg > graal-compiler
diff src/share/vm/runtime/sharedRuntimeTrans.cpp @ 1681:126ea7725993
6953477: Increase portability and flexibility of building Hotspot
Summary: A collection of portability improvements including shared code support for PPC, ARM platforms, software floating point, cross compilation support and improvements in error crash detail.
Reviewed-by: phh, never, coleenp, dholmes
| author | bobv |
|---|---|
| date | Tue, 03 Aug 2010 08:13:38 -0400 |
| parents | c18cbe5936b8 |
| children | f95d63e2154a |
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--- a/src/share/vm/runtime/sharedRuntimeTrans.cpp Wed Jul 28 17:57:43 2010 -0400 +++ b/src/share/vm/runtime/sharedRuntimeTrans.cpp Tue Aug 03 08:13:38 2010 -0400 @@ -572,7 +572,11 @@ if(hy<0) z = one/z; /* z = (1/|x|) */ if(hx<0) { if(((ix-0x3ff00000)|yisint)==0) { +#ifdef CAN_USE_NAN_DEFINE + z = NAN; +#else z = (z-z)/(z-z); /* (-1)**non-int is NaN */ +#endif } else if(yisint==1) z = -1.0*z; /* (x<0)**odd = -(|x|**odd) */ } @@ -583,7 +587,12 @@ n = (hx>>31)+1; /* (x<0)**(non-int) is NaN */ - if((n|yisint)==0) return (x-x)/(x-x); + if((n|yisint)==0) +#ifdef CAN_USE_NAN_DEFINE + return NAN; +#else + return (x-x)/(x-x); +#endif s = one; /* s (sign of result -ve**odd) = -1 else = 1 */ if((n|(yisint-1))==0) s = -one;/* (-ve)**(odd int) */