Vendor import of llvm r114020 (from the release_28 branch):

http://llvm.org/svn/llvm-project/llvm/branches/release_28@114020

Approved by:	rpaulo (mentor)

1 files changed, 33 insertions, 0 deletions

diff --git a/tools/llvmc/src/Hooks.cpp b/tools/llvmc/src/Hooks.cpp
new file mode 100644
index 0000000..661a914
--- /dev/null
+++ b/tools/llvmc/src/Hooks.cpp
@@ -0,0 +1,33 @@
+#include <string>
+#include <vector>
+
+namespace hooks {
+typedef std::vector<std::string> StrVec;
+
+/// ConvertToMAttr - Convert -m* and -mno-* to -mattr=+*,-*
+std::string ConvertToMAttr(const StrVec& Opts) {
+  std::string out("-mattr=");
+
+  bool firstIter = true;
+  for (StrVec::const_iterator B = Opts.begin(), E = Opts.end(); B!=E; ++B) {
+    const std::string& Arg = *B;
+
+    if (firstIter)
+      firstIter = false;
+    else
+      out += ",";
+
+    if (Arg.find("no-") == 0 && Arg[3] != 0) {
+      out += '-';
+      out += Arg.c_str() + 3;
+    }
+    else {
+      out += '+';
+      out += Arg;
+    }
+  }
+
+  return out;
+}
+
+}