diff options
author | Richard Smith <richard-llvm@metafoo.co.uk> | 2017-12-14 15:16:18 +0000 |
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committer | Richard Smith <richard-llvm@metafoo.co.uk> | 2017-12-14 15:16:18 +0000 |
commit | 96881be75c9092dabbb19ccae56e64af7ad29e90 (patch) | |
tree | c9b12abbcccd5cf6d47b291289fbf7ba338cbdff /lib/Parse/ParseExpr.cpp | |
parent | f19939b529be1bdd8adce0ff0e648ab3ae0faa6a (diff) |
[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'.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@320707 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Parse/ParseExpr.cpp')
-rw-r--r-- | lib/Parse/ParseExpr.cpp | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/lib/Parse/ParseExpr.cpp b/lib/Parse/ParseExpr.cpp index 233e0accce..bc587628c9 100644 --- a/lib/Parse/ParseExpr.cpp +++ b/lib/Parse/ParseExpr.cpp @@ -66,12 +66,16 @@ using namespace clang; /// shift-expression '<<' additive-expression /// shift-expression '>>' additive-expression /// -/// relational-expression: [C99 6.5.8] +/// compare-expression: [C++20 expr.spaceship] /// shift-expression -/// relational-expression '<' shift-expression -/// relational-expression '>' shift-expression -/// relational-expression '<=' shift-expression -/// relational-expression '>=' shift-expression +/// compare-expression '<=>' shift-expression +/// +/// relational-expression: [C99 6.5.8] +/// compare-expression +/// relational-expression '<' compare-expression +/// relational-expression '>' compare-expression +/// relational-expression '<=' compare-expression +/// relational-expression '>=' compare-expression /// /// equality-expression: [C99 6.5.9] /// relational-expression @@ -267,7 +271,8 @@ bool Parser::diagnoseUnknownTemplateId(ExprResult LHS, SourceLocation Less) { } bool Parser::isFoldOperator(prec::Level Level) const { - return Level > prec::Unknown && Level != prec::Conditional; + return Level > prec::Unknown && Level != prec::Conditional && + Level != prec::Spaceship; } bool Parser::isFoldOperator(tok::TokenKind Kind) const { |