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-rw-r--r--indra/llmath/llmath.h4
-rw-r--r--indra/llmath/llsimdmath.h2
2 files changed, 3 insertions, 3 deletions
diff --git a/indra/llmath/llmath.h b/indra/llmath/llmath.h
index b66a3c63d6..92a48df53c 100644
--- a/indra/llmath/llmath.h
+++ b/indra/llmath/llmath.h
@@ -153,7 +153,7 @@ inline F64 llabs(const F64 a)
inline S32 lltrunc( F32 f )
{
-#if LL_WINDOWS && !defined( __INTEL_COMPILER ) && !defined( _M_AMD64 )
+#if LL_WINDOWS && !defined( __INTEL_COMPILER ) && (ADDRESS_SIZE == 32)
// Avoids changing the floating point control word.
// Add or subtract 0.5 - epsilon and then round
const static U32 zpfp[] = { 0xBEFFFFFF, 0x3EFFFFFF };
@@ -179,7 +179,7 @@ inline S32 lltrunc( F64 f )
inline S32 llfloor( F32 f )
{
-#if LL_WINDOWS && !defined( __INTEL_COMPILER ) && !defined( _M_AMD64 )
+#if LL_WINDOWS && !defined( __INTEL_COMPILER ) && (ADDRESS_SIZE == 32)
// Avoids changing the floating point control word.
// Accurate (unlike Stereopsis version) for all values between S32_MIN and S32_MAX and slightly faster than Stereopsis version.
// Add -(0.5 - epsilon) and then round
diff --git a/indra/llmath/llsimdmath.h b/indra/llmath/llsimdmath.h
index 9f078ec1ef..54a275633f 100644
--- a/indra/llmath/llsimdmath.h
+++ b/indra/llmath/llsimdmath.h
@@ -31,7 +31,7 @@
#error "Please include llmath.h before this file."
#endif
-#if ( ( LL_DARWIN || LL_LINUX ) && !(__SSE2__) ) || ( LL_WINDOWS && ( _M_IX86_FP < 2 && !_M_AMD64 ) )
+#if ( ( LL_DARWIN || LL_LINUX ) && !(__SSE2__) ) || ( LL_WINDOWS && ( _M_IX86_FP < 2 && ADDRESS_SIZE == 32 ) )
#error SSE2 not enabled. LLVector4a and related class will not compile.
#endif