Patchwork [v2,7/9] softfloat: add float*_is_zero_or_denormal()

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Submitter Aurelien Jarno
Date May 23, 2011, 9:42 p.m.
Message ID <1306186971-9528-8-git-send-email-aurelien@aurel32.net>
Download mbox | patch
Permalink /patch/97089/
State New
Headers show

Comments

Aurelien Jarno - May 23, 2011, 9:42 p.m.
float*_is_zero_or_denormal() is available for float32, but not for
float64, floatx80 and float128. Fix that.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
---
 fpu/softfloat.h |   15 +++++++++++++++
 1 files changed, 15 insertions(+), 0 deletions(-)

Patch

diff --git a/fpu/softfloat.h b/fpu/softfloat.h
index 8931446..bde2500 100644
--- a/fpu/softfloat.h
+++ b/fpu/softfloat.h
@@ -449,6 +449,11 @@  INLINE int float64_is_any_nan(float64 a)
     return ((float64_val(a) & ~(1ULL << 63)) > 0x7ff0000000000000ULL);
 }
 
+INLINE int float64_is_zero_or_denormal(float64 a)
+{
+    return (float64_val(a) & 0x7ff0000000000000LL) == 0;
+}
+
 INLINE float64 float64_set_sign(float64 a, int sign)
 {
     return make_float64((float64_val(a) & 0x7fffffffffffffffULL)
@@ -538,6 +543,11 @@  INLINE int floatx80_is_zero(floatx80 a)
     return (a.high & 0x7fff) == 0 && a.low == 0;
 }
 
+INLINE int floatx80_is_zero_or_denormal(floatx80 a)
+{
+    return (a.high & 0x7fff) == 0;
+}
+
 INLINE int floatx80_is_any_nan(floatx80 a)
 {
     return ((a.high & 0x7fff) == 0x7fff) && (a.low<<1);
@@ -626,6 +636,11 @@  INLINE int float128_is_zero(float128 a)
     return (a.high & 0x7fffffffffffffffLL) == 0 && a.low == 0;
 }
 
+INLINE int float128_is_zero_or_denormal(float128 a)
+{
+    return (a.high & 0x7fff000000000000LL) == 0;
+}
+
 INLINE int float128_is_any_nan(float128 a)
 {
     return ((a.high >> 48) & 0x7fff) == 0x7fff &&