Turn on -flax-vector-conversions by default, issue a warning whenever one is done. Add a -fnolax-vector-conversions option. Fixes PR2862.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63447 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/Driver/clang.cpp b/Driver/clang.cpp
index 5e545b9..52f3478 100644
--- a/Driver/clang.cpp
+++ b/Driver/clang.cpp
@@ -486,10 +486,10 @@
llvm::cl::desc("Store string literals as writable data"));
static llvm::cl::opt<bool>
-LaxVectorConversions("flax-vector-conversions",
- llvm::cl::desc("Allow implicit conversions between vectors"
- " with a different number of elements or "
- "different element types"));
+NoLaxVectorConversions("fnolax-vector-conversions",
+ llvm::cl::desc("Disallow implicit conversions between "
+ "vectors with a different number of "
+ "elements or different element types"));
static llvm::cl::opt<bool>
EnableBlocks("fblocks", llvm::cl::desc("enable the 'blocks' language feature"), llvm::cl::ValueDisallowed);
@@ -620,7 +620,8 @@
Options.PascalStrings = PascalStrings;
Options.Microsoft = MSExtensions;
Options.WritableStrings = WritableStrings;
- Options.LaxVectorConversions = LaxVectorConversions;
+ if (NoLaxVectorConversions.getPosition())
+ Options.LaxVectorConversions = 0;
Options.Exceptions = Exceptions;
if (EnableBlocks.getPosition() || DisableBlocks.getPosition())
Options.Blocks = EnableBlocks;