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Bugfixes for empty signal vectors

This commit is contained in:
Clifford Wolf 2013-07-10 12:52:29 +02:00
parent ed62fcdbe2
commit a9fefc6ce1
1 changed files with 3 additions and 0 deletions
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3
passes/opt/opt_const.cc
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@ -217,6 +217,7 @@ void replace_const_cells(RTLIL::Design *design, RTLIL::Module *module, bool cons
assign_map.apply(a); \ assign_map.apply(a); \
if (a.is_fully_const()) { \ if (a.is_fully_const()) { \
a.optimize(); \ a.optimize(); \
if (a.chunks.empty()) a.chunks.push_back(RTLIL::SigChunk()); \
RTLIL::Const dummy_arg(RTLIL::State::S0, 1); \ RTLIL::Const dummy_arg(RTLIL::State::S0, 1); \
RTLIL::SigSpec y(RTLIL::const_ ## _t(a.chunks[0].data, dummy_arg, \ RTLIL::SigSpec y(RTLIL::const_ ## _t(a.chunks[0].data, dummy_arg, \
cell->parameters["\\A_SIGNED"].as_bool(), false, \ cell->parameters["\\A_SIGNED"].as_bool(), false, \
@ -232,6 +233,8 @@ void replace_const_cells(RTLIL::Design *design, RTLIL::Module *module, bool cons
assign_map.apply(a), assign_map.apply(b); \ assign_map.apply(a), assign_map.apply(b); \
if (a.is_fully_const() && b.is_fully_const()) { \ if (a.is_fully_const() && b.is_fully_const()) { \
a.optimize(), b.optimize(); \ a.optimize(), b.optimize(); \
if (a.chunks.empty()) a.chunks.push_back(RTLIL::SigChunk()); \
if (b.chunks.empty()) b.chunks.push_back(RTLIL::SigChunk()); \
RTLIL::SigSpec y(RTLIL::const_ ## _t(a.chunks[0].data, b.chunks[0].data, \ RTLIL::SigSpec y(RTLIL::const_ ## _t(a.chunks[0].data, b.chunks[0].data, \
cell->parameters["\\A_SIGNED"].as_bool(), \ cell->parameters["\\A_SIGNED"].as_bool(), \
cell->parameters["\\B_SIGNED"].as_bool(), \ cell->parameters["\\B_SIGNED"].as_bool(), \