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author | Bill Wendling <isanbard@gmail.com> | 2014-08-04 04:36:40 +0000 |
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committer | Bill Wendling <isanbard@gmail.com> | 2014-08-04 04:36:40 +0000 |
commit | 1b86b4f41a6302efe409c5d898499059b6fff1a5 (patch) | |
tree | 34c1223523715c0c02e3c35cc1825b2dc04249dc | |
parent | 0fab06c069ec5e339546ba481b22ffe54dcd9449 (diff) |
Merging r214008:
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r214008 | rtrieu | 2014-07-25 19:10:52 -0700 (Fri, 25 Jul 2014) | 3 lines
If a template argument is non-evaluable expression, use the profile ID to see
if the two arguments are equal.
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git-svn-id: https://llvm.org/svn/llvm-project/cfe/branches/release_35@214696 91177308-0d34-0410-b5e6-96231b3b80d8
-rw-r--r-- | lib/AST/ASTDiagnostic.cpp | 15 | ||||
-rw-r--r-- | test/Misc/diag-template-diffing.cpp | 35 |
2 files changed, 43 insertions, 7 deletions
diff --git a/lib/AST/ASTDiagnostic.cpp b/lib/AST/ASTDiagnostic.cpp index ad71335add..8c8b1dff0c 100644 --- a/lib/AST/ASTDiagnostic.cpp +++ b/lib/AST/ASTDiagnostic.cpp @@ -1291,11 +1291,8 @@ class TemplateDiff { if (!FromExpr || !ToExpr) return false; - FromExpr = FromExpr->IgnoreParens(); - ToExpr = ToExpr->IgnoreParens(); - - DeclRefExpr *FromDRE = dyn_cast<DeclRefExpr>(FromExpr), - *ToDRE = dyn_cast<DeclRefExpr>(ToExpr); + DeclRefExpr *FromDRE = dyn_cast<DeclRefExpr>(FromExpr->IgnoreParens()), + *ToDRE = dyn_cast<DeclRefExpr>(ToExpr->IgnoreParens()); if (FromDRE || ToDRE) { if (!FromDRE || !ToDRE) @@ -1305,8 +1302,12 @@ class TemplateDiff { Expr::EvalResult FromResult, ToResult; if (!FromExpr->EvaluateAsRValue(FromResult, Context) || - !ToExpr->EvaluateAsRValue(ToResult, Context)) - return false; + !ToExpr->EvaluateAsRValue(ToResult, Context)) { + llvm::FoldingSetNodeID FromID, ToID; + FromExpr->Profile(FromID, Context, true); + ToExpr->Profile(ToID, Context, true); + return FromID == ToID; + } APValue &FromVal = FromResult.Val; APValue &ToVal = ToResult.Val; diff --git a/test/Misc/diag-template-diffing.cpp b/test/Misc/diag-template-diffing.cpp index 32d67b9390..bdd6d62fdd 100644 --- a/test/Misc/diag-template-diffing.cpp +++ b/test/Misc/diag-template-diffing.cpp @@ -1212,6 +1212,41 @@ A<int> a2 = A<bool>(); // CHECK-ELIDE-NOTREE: no viable conversion from 'A<bool>' to 'A<int>' } +namespace TypeAlias { +template <int, int = 0> class A {}; + +template <class T> using a = A<T::num, 0>; +template <class T> using a = A<T::num>; + +template <class T> using A1 = A<T::num>; +template <class T> using A1 = A<T::num + 0>; +// CHECK-ELIDE-NOTREE: type alias template redefinition with different types ('A<T::num + 0>' vs 'A<T::num>') + +template <class T> using A2 = A<1 + T::num>; +template <class T> using A2 = A<T::num + 1>; +// CHECK-ELIDE-NOTREE: type alias template redefinition with different types ('A<T::num + 1>' vs 'A<1 + T::num>') + +template <class T> using A3 = A<(T::num)>; +template <class T> using A3 = A<T::num>; +// CHECK-ELIDE-NOTREE: error: type alias template redefinition with different types ('A<T::num>' vs 'A<(T::num)>') + + template <class T> using A4 = A<(T::num)>; +template <class T> using A4 = A<((T::num))>; +// CHECK-ELIDE-NOTREE: type alias template redefinition with different types ('A<((T::num))>' vs 'A<(T::num)>') + +template <class T> using A5 = A<T::num, 1>; +template <class T> using A5 = A<T::num>; +// CHECK-ELIDE-NOTREE: type alias template redefinition with different types ('A<[...], (default) 0>' vs 'A<[...], 1>') + +template <class T> using A6 = A<T::num + 5, 1>; +template <class T> using A6 = A<T::num + 5>; +// CHECK-ELIDE-NOTREE: type alias template redefinition with different types ('A<[...], (default) 0>' vs 'A<[...], 1>') + +template <class T> using A7 = A<T::num, 1>; +template <class T> using A7 = A<(T::num)>; +// CHECK-ELIDE-NOTREE: type alias template redefinition with different types ('A<(T::num), (default) 0>' vs 'A<T::num, 1>') +} + // CHECK-ELIDE-NOTREE: {{[0-9]*}} errors generated. // CHECK-NOELIDE-NOTREE: {{[0-9]*}} errors generated. // CHECK-ELIDE-TREE: {{[0-9]*}} errors generated. |