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-rw-r--r--lib/Sema/SemaExpr.cpp19
-rw-r--r--test/Sema/PR2963-enum-constant.c2
2 files changed, 13 insertions, 8 deletions
diff --git a/lib/Sema/SemaExpr.cpp b/lib/Sema/SemaExpr.cpp
index e7d5ee18ff..6e86e71bd4 100644
--- a/lib/Sema/SemaExpr.cpp
+++ b/lib/Sema/SemaExpr.cpp
@@ -4929,6 +4929,13 @@ bool Sema::DiagnoseAssignmentResult(AssignConvertType ConvTy,
}
bool Sema::VerifyIntegerConstantExpression(const Expr *E, llvm::APSInt *Result){
+ llvm::APSInt ICEResult;
+ if (E->isIntegerConstantExpr(ICEResult, Context)) {
+ if (Result)
+ *Result = ICEResult;
+ return false;
+ }
+
Expr::EvalResult EvalResult;
if (!E->Evaluate(EvalResult, Context) || !EvalResult.Val.isInt() ||
@@ -4946,14 +4953,12 @@ bool Sema::VerifyIntegerConstantExpression(const Expr *E, llvm::APSInt *Result){
return true;
}
- if (EvalResult.Diag) {
- Diag(E->getExprLoc(), diag::ext_expr_not_ice) <<
- E->getSourceRange();
+ Diag(E->getExprLoc(), diag::ext_expr_not_ice) <<
+ E->getSourceRange();
- // Print the reason it's not a constant.
- if (Diags.getDiagnosticLevel(diag::ext_expr_not_ice) != Diagnostic::Ignored)
- Diag(EvalResult.DiagLoc, EvalResult.Diag);
- }
+ if (EvalResult.Diag &&
+ Diags.getDiagnosticLevel(diag::ext_expr_not_ice) != Diagnostic::Ignored)
+ Diag(EvalResult.DiagLoc, EvalResult.Diag);
if (Result)
*Result = EvalResult.Val.getInt();
diff --git a/test/Sema/PR2963-enum-constant.c b/test/Sema/PR2963-enum-constant.c
index 7a08814815..78f2326dae 100644
--- a/test/Sema/PR2963-enum-constant.c
+++ b/test/Sema/PR2963-enum-constant.c
@@ -13,5 +13,5 @@ enum
enum
{
- SOME_VALUE= FLOAT_TO_SHORT_FIXED(0.1)
+ SOME_VALUE= FLOAT_TO_SHORT_FIXED(0.1) // expected-warning{{expression is not integer constant expression}}
};