[c++20] P0515R3: Parsing support and basic AST construction for operator <=>.
Adding the new enumerator forced a bunch more changes into this patch than I
would have liked. The -Wtautological-compare warning was extended to properly
check the new comparison operator, clang-format needed updating because it uses
precedence levels as weights for determining where to break lines (and several
operators increased their precedence levels with this change), thread-safety
analysis needed changes to build its own IL properly for the new operator.
All "real" semantic checking for this operator has been deferred to a future
patch. For now, we use the relational comparison rules and arbitrarily give
the builtin form of the operator a return type of 'void'.
llvm-svn: 320707
diff --git a/clang/lib/Format/ContinuationIndenter.cpp b/clang/lib/Format/ContinuationIndenter.cpp
index e022a3a..a3d38b2 100644
--- a/clang/lib/Format/ContinuationIndenter.cpp
+++ b/clang/lib/Format/ContinuationIndenter.cpp
@@ -323,7 +323,8 @@
// We need special cases for ">>" which we have split into two ">" while
// lexing in order to make template parsing easier.
bool IsComparison = (Previous.getPrecedence() == prec::Relational ||
- Previous.getPrecedence() == prec::Equality) &&
+ Previous.getPrecedence() == prec::Equality ||
+ Previous.getPrecedence() == prec::Spaceship) &&
Previous.Previous &&
Previous.Previous->isNot(TT_BinaryOperator); // For >>.
bool LHSIsBinaryExpr =
@@ -536,7 +537,8 @@
(P->is(TT_ConditionalExpr) && P->is(tok::colon))) &&
!P->isOneOf(TT_OverloadedOperator, TT_CtorInitializerComma) &&
P->getPrecedence() != prec::Assignment &&
- P->getPrecedence() != prec::Relational) {
+ P->getPrecedence() != prec::Relational &&
+ P->getPrecedence() != prec::Spaceship) {
bool BreakBeforeOperator =
P->MustBreakBefore || P->is(tok::lessless) ||
(P->is(TT_BinaryOperator) &&