Fix assertion on asm register that are "%"
Name might be empty again after we removed the '%' prefix
and Name[0] would assert.
Found on code like
register int foo asm("%" MACRO);
where MACRO was supposed to be defined in a header file that was not found.
llvm-svn: 215834
diff --git a/clang/lib/Basic/TargetInfo.cpp b/clang/lib/Basic/TargetInfo.cpp
index aecf13b..a352980 100644
--- a/clang/lib/Basic/TargetInfo.cpp
+++ b/clang/lib/Basic/TargetInfo.cpp
@@ -338,6 +338,8 @@
// Get rid of any register prefix.
Name = removeGCCRegisterPrefix(Name);
+ if (Name.empty())
+ return false;
getGCCRegNames(Names, NumNames);