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Merge pull request #889 from YosysHQ/clifford/fix888 

Fix mem2reg handling of memories with upto data ports
This commit is contained in:
Clifford Wolf 2019-03-22 18:03:06 +01:00 committed by GitHub
parent 7d8d0d0155 638be461c3
commit a440f82586
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 10 additions and 1 deletions
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11
frontends/ast/simplify.cc
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@ -138,9 +138,15 @@ bool AstNode::simplify(bool const_fold, bool at_zero, bool in_lvalue, int stage,
int mem_width, mem_size, addr_bits;
node->meminfo(mem_width, mem_size, addr_bits);
int data_range_left = node->children[0]->range_left;
int data_range_right = node->children[0]->range_right;
if (node->children[0]->range_swapped)
std::swap(data_range_left, data_range_right);
for (int i = 0; i < mem_size; i++) {
AstNode *reg = new AstNode(AST_WIRE, new AstNode(AST_RANGE,
mkconst_int(mem_width-1, true), mkconst_int(0, true)));
mkconst_int(data_range_left, true), mkconst_int(data_range_right, true)));
reg->str = stringf("%s[%d]", node->str.c_str(), i);
reg->is_reg = true;
reg->is_signed = node->is_signed;
@ -976,6 +982,9 @@ bool AstNode::simplify(bool const_fold, bool at_zero, bool in_lvalue, int stage,
int data_range_left = id2ast->children[0]->range_left;
int data_range_right = id2ast->children[0]->range_right;
if (id2ast->children[0]->range_swapped)
std::swap(data_range_left, data_range_right);
std::stringstream sstr;
sstr << "$mem2bits$" << str << "$" << filename << ":" << linenum << "$" << (autoidx++);
std::string wire_id = sstr.str();