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-rw-r--r--src/util/rounding.h8
1 files changed, 6 insertions, 2 deletions
diff --git a/src/util/rounding.h b/src/util/rounding.h
index b0c9918fd6e..ec31b47264e 100644
--- a/src/util/rounding.h
+++ b/src/util/rounding.h
@@ -96,8 +96,10 @@ _mesa_lroundevenf(float x)
#ifdef __x86_64__
#if LONG_BIT == 64
return _mm_cvtss_si64(_mm_load_ss(&x));
-#elif LONG_BIT == 32
+#elif LONG_BIT == 32 || defined(_WIN32)
return _mm_cvtss_si32(_mm_load_ss(&x));
+#else
+#error "Unsupported or undefined LONG_BIT"
#endif
#else
return lrintf(x);
@@ -114,8 +116,10 @@ _mesa_lroundeven(double x)
#ifdef __x86_64__
#if LONG_BIT == 64
return _mm_cvtsd_si64(_mm_load_sd(&x));
-#elif LONG_BIT == 32
+#elif LONG_BIT == 32 || defined(_WIN32)
return _mm_cvtsd_si32(_mm_load_sd(&x));
+#else
+#error "Unsupported or undefined LONG_BIT"
#endif
#else
return lrint(x);