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Merge pull request #3463 from YosysHQ/micko/hierarchy_fix

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Makes sure to set initial_top when top change, fixes #3462
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Miodrag Milanović 2022-08-29 10:12:34 +02:00 committed by GitHub
parent 883831bd24 5b5fe76966
commit a8506c1c76
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GPG key ID: 4AEE18F83AFDEB23
3 changed files with 16 additions and 0 deletions
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1
passes/hierarchy/hierarchy.cc
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@ -1058,6 +1058,7 @@ struct HierarchyPass : public Pass {
if (tmp_top_mod != NULL) { if (tmp_top_mod != NULL) {
if (tmp_top_mod != top_mod){ if (tmp_top_mod != top_mod){
top_mod = tmp_top_mod; top_mod = tmp_top_mod;
top_mod->attributes[ID::initial_top] = RTLIL::Const(1);
did_something = true; did_something = true;
} }
} }

12
tests/various/bug3462.ys Normal file
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@ -0,0 +1,12 @@
read_verilog <<EOT
module top();
wire array[0:0];
wire out;
sub #(.d(1)) inst(
.in(array[0]),
.out(out)
);
endmodule
EOT
hierarchy -top top -libdir .

3
tests/various/sub.v Normal file
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@ -0,0 +1,3 @@
module sub #(parameter d=1) (input in, output out);
assign out = in;
endmodule