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Fix for over-enthusiastic pruning of expressions. 

The minimum width for expressions containing a literal number was
being incorrectly calculated, leading to loss of information in
some circumstances.
This commit is contained in:
Martin Whitaker 2011-03-25 18:55:59 +00:00 committed by Stephen Williams
parent b6ff4039b1
commit 8c7365fb36
1 changed files with 1 additions and 1 deletions
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2
elab_expr.cc
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@ -3163,7 +3163,7 @@ unsigned PENumber::test_width(Design*, NetScope*, width_mode_t&mode)
{ {
expr_type_ = IVL_VT_LOGIC; expr_type_ = IVL_VT_LOGIC;
expr_width_ = value_->len(); expr_width_ = value_->len();
min_width_ = 1; min_width_ = expr_width_;
signed_flag_ = value_->has_sign(); signed_flag_ = value_->has_sign();
if ((mode < LOSSLESS) && !value_->has_len() && !value_->is_single()) if ((mode < LOSSLESS) && !value_->has_len() && !value_->is_single())