diff options
Diffstat (limited to 'clang/lib/Parse')
| -rw-r--r-- | clang/lib/Parse/ParsePragma.cpp | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/clang/lib/Parse/ParsePragma.cpp b/clang/lib/Parse/ParsePragma.cpp index aa7b843837d..5ffce000364 100644 --- a/clang/lib/Parse/ParsePragma.cpp +++ b/clang/lib/Parse/ParsePragma.cpp @@ -822,10 +822,9 @@ bool Parser::HandlePragmaLoopHint(LoopHint &Hint) { SourceLocation StateLoc = Toks[0].getLocation(); IdentifierInfo *StateInfo = Toks[0].getIdentifierInfo(); if (!StateInfo || - ((OptionUnroll ? !StateInfo->isStr("full") - : !StateInfo->isStr("enable") && - !StateInfo->isStr("assume_safety")) && - !StateInfo->isStr("disable"))) { + (!StateInfo->isStr("enable") && !StateInfo->isStr("disable") && + ((OptionUnroll && !StateInfo->isStr("full")) || + (!OptionUnroll && !StateInfo->isStr("assume_safety"))))) { Diag(Toks[0].getLocation(), diag::err_pragma_invalid_keyword) << /*FullKeyword=*/OptionUnroll; return false; @@ -1953,8 +1952,9 @@ static bool ParseLoopHintValue(Preprocessor &PP, Token &Tok, Token PragmaName, /// 'assume_safety' /// /// unroll-hint-keyword: -/// 'full' +/// 'enable' /// 'disable' +/// 'full' /// /// loop-hint-value: /// constant-expression @@ -1970,10 +1970,13 @@ static bool ParseLoopHintValue(Preprocessor &PP, Token &Tok, Token PragmaName, /// only works on inner loops. /// /// The unroll and unroll_count directives control the concatenation -/// unroller. Specifying unroll(full) instructs llvm to try to -/// unroll the loop completely, and unroll(disable) disables unrolling -/// for the loop. Specifying unroll_count(_value_) instructs llvm to -/// try to unroll the loop the number of times indicated by the value. +/// unroller. Specifying unroll(enable) instructs llvm to unroll the loop +/// completely if the trip count is known at compile time and unroll partially +/// if the trip count is not known. Specifying unroll(full) is similar to +/// unroll(enable) but will unroll the loop only if the trip count is known at +/// compile time. Specifying unroll(disable) disables unrolling for the +/// loop. Specifying unroll_count(_value_) instructs llvm to try to unroll the +/// loop the number of times indicated by the value. void PragmaLoopHintHandler::HandlePragma(Preprocessor &PP, PragmaIntroducerKind Introducer, Token &Tok) { |
