MS inline asm: Filter MXCSR out of the inferred clobber list
Since r295004, LLVM has started modelling this new register, but we
don't have GCC constraint inline asm spellings for it yet.
llvm-svn: 295107
diff --git a/clang/lib/Parse/ParseStmtAsm.cpp b/clang/lib/Parse/ParseStmtAsm.cpp
index 59e96d9..85cd22f 100644
--- a/clang/lib/Parse/ParseStmtAsm.cpp
+++ b/clang/lib/Parse/ParseStmtAsm.cpp
@@ -621,10 +621,11 @@
MII.get(), IP.get(), Callback))
return StmtError();
- // Filter out "fpsw". Clang doesn't accept it, and it always lists flags and
- // fpsr as clobbers.
- auto End = std::remove(Clobbers.begin(), Clobbers.end(), "fpsw");
- Clobbers.erase(End, Clobbers.end());
+ // Filter out "fpsw" and "mxcsr". They aren't valid GCC asm clobber
+ // constraints. Clang always adds fpsr to the clobber list anyway.
+ llvm::erase_if(Clobbers, [](const std::string &C) {
+ return C == "fpsw" || C == "mxcsr";
+ });
// Build the vector of clobber StringRefs.
ClobberRefs.insert(ClobberRefs.end(), Clobbers.begin(), Clobbers.end());