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| author | Clifford Wolf <clifford@clifford.at> | 2019-05-27 13:25:52 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2019-05-27 13:25:52 +0200 |
| commit | 40a070e269ac5dbc88d2f81a4d9b340ecb524009 (patch) | |
| tree | fff2c69cd5f045777b43a93469793fd7375f081d /frontends/ast/ast.cc | |
| parent | 2a9c68e2d6e0d58ac9e1ef8e8eb4c21eb979b380 (diff) | |
| parent | 34417ce55f1b1d71ac11dfdfecfffc7a3340b6cb (diff) | |
| download | yosys-40a070e269ac5dbc88d2f81a4d9b340ecb524009.tar.gz yosys-40a070e269ac5dbc88d2f81a4d9b340ecb524009.tar.bz2 yosys-40a070e269ac5dbc88d2f81a4d9b340ecb524009.zip | |
Merge pull request #1043 from mmicko/unsized_constant
Added support for unsized constants, fixes #1022
Diffstat (limited to 'frontends/ast/ast.cc')
| -rw-r--r-- | frontends/ast/ast.cc | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/frontends/ast/ast.cc b/frontends/ast/ast.cc index 5623541b2..29e175c15 100644 --- a/frontends/ast/ast.cc +++ b/frontends/ast/ast.cc @@ -194,6 +194,7 @@ AstNode::AstNode(AstNodeType type, AstNode *child1, AstNode *child2, AstNode *ch is_logic = false; is_signed = false; is_string = false; + is_unsized = false; was_checked = false; range_valid = false; range_swapped = false; @@ -722,7 +723,7 @@ AstNode *AstNode::mkconst_int(uint32_t v, bool is_signed, int width) } // create an AST node for a constant (using a bit vector as value) -AstNode *AstNode::mkconst_bits(const std::vector<RTLIL::State> &v, bool is_signed) +AstNode *AstNode::mkconst_bits(const std::vector<RTLIL::State> &v, bool is_signed, bool is_unsized) { AstNode *node = new AstNode(AST_CONSTANT); node->is_signed = is_signed; @@ -736,9 +737,15 @@ AstNode *AstNode::mkconst_bits(const std::vector<RTLIL::State> &v, bool is_signe node->range_valid = true; node->range_left = node->bits.size()-1; node->range_right = 0; + node->is_unsized = is_unsized; return node; } +AstNode *AstNode::mkconst_bits(const std::vector<RTLIL::State> &v, bool is_signed) +{ + return mkconst_bits(v, is_signed, false); +} + // create an AST node for a constant (using a string in bit vector form as value) AstNode *AstNode::mkconst_str(const std::vector<RTLIL::State> &v) { @@ -775,6 +782,14 @@ bool AstNode::bits_only_01() const return true; } +RTLIL::Const AstNode::bitsAsUnsizedConst(int width) +{ + RTLIL::State extbit = bits.back(); + while (width > int(bits.size())) + bits.push_back(extbit); + return RTLIL::Const(bits); +} + RTLIL::Const AstNode::bitsAsConst(int width, bool is_signed) { std::vector<RTLIL::State> bits = this->bits; |