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Stop falling back to 16-bit BignumInt on VS Arm builds.

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The case previously conditioned on _M_IX86, where we use __int64 as
the BignumDblInt type, is actually valid on any Visual Studio target
platform at all, so it's safe to remove that condition and let it
apply to _M_ARM and _M_ARM64 as well. The only situation in which we
_shouldn't_ use that case for Visual Studio builds is when we have
something even better available, such as the x86-64 intrinsics for
add-with-carry and double-width multiply.
This commit is contained in:
Simon Tatham 2019-02-10 09:02:00 +00:00
parent bc11f74c74
commit fa4a7dd3d5
1 changed files with 1 additions and 1 deletions
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mpint_i.h
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@ -131,7 +131,7 @@
#define BIGNUM_INT_BITS_BITS 5 #define BIGNUM_INT_BITS_BITS 5
#define DEFINE_BIGNUMDBLINT typedef unsigned long long BignumDblInt #define DEFINE_BIGNUMDBLINT typedef unsigned long long BignumDblInt
#elif defined _MSC_VER && defined _M_IX86 && BB_OK(5) #elif defined _MSC_VER && BB_OK(5)
/* 32-bit BignumInt, using Visual Studio __int64 as BignumDblInt */ /* 32-bit BignumInt, using Visual Studio __int64 as BignumDblInt */