diff options
| author | Nico Weber <nicolasweber@gmx.de> | 2017-07-24 16:54:11 +0000 |
|---|---|---|
| committer | Nico Weber <nicolasweber@gmx.de> | 2017-07-24 16:54:11 +0000 |
| commit | f56f446f504c73c1a5567635260daae6be05ac82 (patch) | |
| tree | 9a61676cfac9dee37af453d6fabd7a8c0f68405f /clang/lib/AST/StmtProfile.cpp | |
| parent | 2434d45b85af800f79d72791488329c62c1b6c37 (diff) | |
Work around an MSVC2017 update 3 codegen bug.
C2017 update 3 produces a clang that crashes when compiling clang. Disabling
optimizations for StmtProfiler::VisitCXXOperatorCallExpr() makes the crash go
away.
Patch from Bruce Dawson <brucedawson@chromium.org>!
https://reviews.llvm.org/D35757
llvm-svn: 308897
Diffstat (limited to 'clang/lib/AST/StmtProfile.cpp')
| -rw-r--r-- | clang/lib/AST/StmtProfile.cpp | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/clang/lib/AST/StmtProfile.cpp b/clang/lib/AST/StmtProfile.cpp index a86fded2a2c4..72efca00403b 100644 --- a/clang/lib/AST/StmtProfile.cpp +++ b/clang/lib/AST/StmtProfile.cpp @@ -1412,6 +1412,15 @@ static Stmt::StmtClass DecodeOperatorCall(const CXXOperatorCallExpr *S, llvm_unreachable("Invalid overloaded operator expression"); } +#if defined(_MSC_VER) +#if _MSC_VER == 1911 +// Work around https://developercommunity.visualstudio.com/content/problem/84002/clang-cl-when-built-with-vc-2017-crashes-cause-vc.html +// MSVC 2017 update 3 miscompiles this function, and a clang built with it +// will crash in stage 2 of a bootstrap build. +#pragma optimize("", off) +#endif +#endif + void StmtProfiler::VisitCXXOperatorCallExpr(const CXXOperatorCallExpr *S) { if (S->isTypeDependent()) { // Type-dependent operator calls are profiled like their underlying @@ -1444,6 +1453,12 @@ void StmtProfiler::VisitCXXOperatorCallExpr(const CXXOperatorCallExpr *S) { ID.AddInteger(S->getOperator()); } +#if defined(_MSC_VER) +#if _MSC_VER == 1911 +#pragma optimize("", on) +#endif +#endif + void StmtProfiler::VisitCXXMemberCallExpr(const CXXMemberCallExpr *S) { VisitCallExpr(S); } |