commit 26cc6abf61cc2bf68eaeb89b1497c12330e6b73c
author Christophe LYON <christophe.lyon@st.com> Wed Oct 19 16:14:05 2011 +0000
committer Peter Maydell <peter.maydell@linaro.org> Wed Oct 19 16:14:05 2011 +0000
tree d5d25ab1c179172d18e292b5bd23bfb45d8e44cd
parent cfce6d8934243871c4dc6d0c5248b0b27a1b8d80

rsqrte_f32: No need to copy sign bit.

Indeed, the result is known to be always positive.

Signed-off-by: Christophe Lyon <christophe.lyon@st.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

target-arm/helper.c

diff --git a/target-arm/helper.c b/target-arm/helper.c
index e2428eb..17ef98b 100644
--- a/target-arm/helper.c
+++ b/target-arm/helper.c
@@ -3039,8 +3039,7 @@
 
     val64 = float64_val(f64);
 
-    val = ((val64 >> 63)  & 0x80000000)
-        | ((result_exp & 0xff) << 23)
+    val = ((result_exp & 0xff) << 23)
         | ((val64 >> 29)  & 0x7fffff);
     return make_float32(val);
 }