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Reorder some macro tests, no functional change.

This commit is contained in:
Marc Glisse 2014-06-06 12:32:11 +02:00
parent 37cab384f8
commit dd4f968c48
1 changed files with 6 additions and 5 deletions
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11
Number_types/include/CGAL/FPU.h
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@ -153,7 +153,12 @@ inline double IA_opacify(double x)
asm volatile ("" : "+m"(x) );
# endif
return x;
#elif defined __GNUG__ || defined __xlC__
#elif defined __xlC__
// PowerPC - XL C++ (the z/OS version supposedly does not define this macro)
// If we give it an alternative "+fm", it gets confused and generates worse code.
asm volatile ("" : "+f"(x) );
return x;
#elif defined __GNUG__
// Intel used not to emulate this perfectly, we'll see.
// If we create a version of IA_opacify for vectors, note that gcc < 4.8
// fails with "+g" and we need to use "+mx" instead.
@ -179,10 +184,6 @@ inline double IA_opacify(double x)
# elif (defined __VFP_FP__ && !defined __SOFTFP__) || defined __aarch64__
// ARM
asm volatile ("" : "+gw"(x) );
# elif defined __xlC__
// PowerPC - XL C++ (the z/OS version supposedly does not define this macro)
// If we give it an alternative "+fm", it gets confused and generates worse code.
asm volatile ("" : "+f"(x) );
# elif defined __powerpc__ || defined __POWERPC__
// PowerPC
asm volatile ("" : "+gd"(x) );