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A right shift is only signed for an ARS. 

The signed_flag should only be set when the expression is signed
and an ARS is used a normal RS should never be signed.
(cherry picked from commit caab6cab9d)
This commit is contained in:
Cary R 2009-03-31 12:36:05 -07:00 committed by Stephen Williams
parent 17210d5423
commit c56f21a20c
1 changed files with 1 additions and 1 deletions
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2
expr_synth.cc
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@ -602,7 +602,7 @@ NetNet* NetEBShift::synthesize(Design*des, NetScope*scope, NetExpr*root)
} }
const bool right_flag = op_ == 'r' || op_ == 'R'; const bool right_flag = op_ == 'r' || op_ == 'R';
const bool signed_flag = has_sign(); const bool signed_flag = has_sign() && op_ == 'R';
/* Detect the special case where the shift amount is /* Detect the special case where the shift amount is
constant. Evaluate the shift amount, and simply reconnect constant. Evaluate the shift amount, and simply reconnect