NaN propagation rule: leftmost NaN in the expression gets propagated to
the result.
Signed-off-by: Max Filippov <jcmvb...@gmail.com>
---
fpu/softfloat-specialize.h | 9 +++++++--
1 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/fpu/softfloat-specialize.h b/fpu/softfloat-specialize.h
index 4902450..9d78f41 100644
--- a/fpu/softfloat-specialize.h
+++ b/fpu/softfloat-specialize.h
@@ -57,7 +57,8 @@ const float16 float16_default_nan = const_float16(0xFE00);
*----------------------------------------------------------------------------*/
#if defined(TARGET_SPARC)
const float32 float32_default_nan = const_float32(0x7FFFFFFF);
-#elif defined(TARGET_PPC) || defined(TARGET_ARM) || defined(TARGET_ALPHA)
+#elif defined(TARGET_PPC) || defined(TARGET_ARM) || defined(TARGET_ALPHA) || \
+ defined(TARGET_XTENSA)
const float32 float32_default_nan = const_float32(0x7FC00000);
#elif SNAN_BIT_IS_ONE
const float32 float32_default_nan = const_float32(0x7FBFFFFF);
@@ -262,9 +263,13 @@ float32 float32_maybe_silence_nan( float32 a_ )
# error Rules for silencing a signaling NaN are target-specific
# endif
#else
+# if defined(TARGET_XTENSA)
+ return a_;
+# else
uint32_t a = float32_val(a_);
a |= (1 << 22);
return make_float32(a);
+# endif
#endif
}
return a_;
@@ -372,7 +377,7 @@ static int pickNaN(flag aIsQNaN, flag aIsSNaN, flag
bIsQNaN, flag bIsSNaN,
return 1;
}
}
-#elif defined(TARGET_PPC)
+#elif defined(TARGET_PPC) || defined(TARGET_XTENSA)
static int pickNaN(flag aIsQNaN, flag aIsSNaN, flag bIsQNaN, flag bIsSNaN,
flag aIsLargerSignificand)
{
--
1.7.7.6
