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fix width detection of array querying function in case and case item expressions

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I also removed the unnecessary shadowing of `width_hint` and `sign_hint`
in the corresponding case in `simplify()`.
This commit is contained in:
Zachary Snow 2021-12-15 18:15:09 -07:00 • committed by Zachary Snow
parent 60c3ea367c
commit 7608985d2c
5 changed files with 50 additions and 2 deletions
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11
tests/simple/case_expr_extend.sv Normal file
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@ -0,0 +1,11 @@
module top(
output logic [5:0] out
);
always_comb begin
out = '0;
case (1'b1 << 1)
2'b10: out = '1;
default: out = '0;
endcase
end
endmodule

32
tests/simple/case_expr_query.sv Normal file
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@ -0,0 +1,32 @@
module top(
output logic [5:0] out
);
always_comb begin
out = '0;
case ($bits (out)) 6:
case ($size (out)) 6:
case ($high (out)) 5:
case ($low (out)) 0:
case ($left (out)) 5:
case ($right(out)) 0:
case (6) $bits (out):
case (6) $size (out):
case (5) $high (out):
case (0) $low (out):
case (5) $left (out):
case (0) $right(out):
out = '1;
endcase
endcase
endcase
endcase
endcase
endcase
endcase
endcase
endcase
endcase
endcase
endcase
end
endmodule