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-rw-r--r--lib/Solver/FastCexSolver.cpp25
1 files changed, 4 insertions, 21 deletions
diff --git a/lib/Solver/FastCexSolver.cpp b/lib/Solver/FastCexSolver.cpp
index 1efeb0cb..882e0f28 100644
--- a/lib/Solver/FastCexSolver.cpp
+++ b/lib/Solver/FastCexSolver.cpp
@@ -504,27 +504,10 @@ public:
// value, isolating for that range, and continuing.
case Expr::Concat: {
ConcatExpr *ce = cast<ConcatExpr>(e);
- if (ce->is2ByteConcat()) {
- forceExprToRange(ce->getKid(0), range.extract( 8, 16));
- forceExprToRange(ce->getKid(1), range.extract( 0, 8));
- }
- else if (ce->is4ByteConcat()) {
- forceExprToRange(ce->getKid(0), range.extract(24, 32));
- forceExprToRange(ce->getKid(1), range.extract(16, 24));
- forceExprToRange(ce->getKid(2), range.extract( 8, 16));
- forceExprToRange(ce->getKid(3), range.extract( 0, 8));
- }
- else if (ce->is8ByteConcat()) {
- forceExprToRange(ce->getKid(0), range.extract(56, 64));
- forceExprToRange(ce->getKid(1), range.extract(48, 56));
- forceExprToRange(ce->getKid(2), range.extract(40, 48));
- forceExprToRange(ce->getKid(3), range.extract(32, 40));
- forceExprToRange(ce->getKid(4), range.extract(24, 32));
- forceExprToRange(ce->getKid(5), range.extract(16, 24));
- forceExprToRange(ce->getKid(6), range.extract( 8, 16));
- forceExprToRange(ce->getKid(7), range.extract( 0, 8));
- }
-
+ Expr::Width LSBWidth = ce->getKid(1)->getWidth();
+ Expr::Width MSBWidth = ce->getKid(1)->getWidth();
+ forceExprToRange(ce->getKid(0), range.extract(LSBWidth, MSBWidth));
+ forceExprToRange(ce->getKid(1), range.extract(0, LSBWidth));
break;
}