Fix assertion in constant expression evaluation. The LHS of a floating-point
binary operator isn't an rvalue if it's an assignment operator.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143250 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/ExprConstant.cpp b/lib/AST/ExprConstant.cpp
index 89bcacf..6e2e15c 100644
--- a/lib/AST/ExprConstant.cpp
+++ b/lib/AST/ExprConstant.cpp
@@ -2492,8 +2492,8 @@
return Visit(E->getRHS());
}
- // We can't evaluate pointer-to-member operations.
- if (E->isPtrMemOp())
+ // We can't evaluate pointer-to-member operations or assignments.
+ if (E->isPtrMemOp() || E->isAssignmentOp())
return false;
// FIXME: Diagnostics? I really don't understand how the warnings
diff --git a/test/Sema/const-eval.c b/test/Sema/const-eval.c
index bdb40ae..6dcc6db 100644
--- a/test/Sema/const-eval.c
+++ b/test/Sema/const-eval.c
@@ -86,3 +86,5 @@
double _Complex P;
float _Complex P2 = 3.3f + P;
}
+
+double d = (d = 0.0); // expected-error {{not a compile-time constant}}