Hi Umesh,
Looking at your patch, this would break all results which need to be normalized.
Index: libgcc/config/arm/ieee754-df.S
===================================================================
--- libgcc/config/arm/ieee754-df.S (revision 262850)
+++ libgcc/config/arm/ieee754-df.S (working copy)
@@ -203,8 +203,11 @@
#endif
@ Determine how to normalize the result.
+ @ if result is denormal i.e (exp)=0,then don't normalise the result,
LSYM(Lad_p):
cmp xh, #0x00100000
+ blt LSYM(Lad_e)
+ cmp xh, #0x00100000
bcc LSYM(Lad_a)
cmp xh, #0x00200000
bcc LSYM(Lad_e)
It seems Lad_a doesn't correctly handle the case where the result is a
denormal. For this case
the result is correct so nothing else needs to be done. This requires an
explicit test that the
exponent is zero - other cases still need to be renormalized as usual. This
code looks overly
complex so any change will require extensive testing of all the corner cases.
Wilco
