riscv
/
yosys
mirror of https://github.com/YosysHQ/yosys.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

Fixed const folding of ternary operator

This commit is contained in:
Clifford Wolf 2013-11-04 16:46:14 +01:00
parent 8d226da694
commit d38c67f53d
1 changed files with 5 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
frontends/ast/simplify.cc
View File

@ -1033,10 +1033,11 @@ skip_dynamic_range_lvalue_expansion:;
break; break;
case AST_TERNARY: case AST_TERNARY:
if (children[0]->type == AST_CONSTANT) { if (children[0]->type == AST_CONSTANT) {
if (children[0]->integer) AstNode *choice = children[children[0]->integer ? 1 : 2];
newNode = children[1]->clone(); if (choice->type == AST_CONSTANT) {
else RTLIL::Const y = choice->bitsAsConst(width_hint, sign_hint);
newNode = children[2]->clone(); newNode = mkconst_bits(y.bits, sign_hint);
}
} }
break; break;
case AST_CONCAT: case AST_CONCAT: