[cfe-commits] r161615 - /cfe/trunk/lib/Sema/SemaStmt.cpp

[Chad Rosier]

Author: mcrosier
Date: Thu Aug  9 15:52:43 2012
New Revision: 161615

URL: http://llvm.org/viewvc/llvm-project?rev=161615&view=rev
Log:
[ms-inline asm] Simplify logic for empty asm statements.

Modified:
    cfe/trunk/lib/Sema/SemaStmt.cpp

Modified: cfe/trunk/lib/Sema/SemaStmt.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Sema/SemaStmt.cpp?rev=161615&r1=161614&r2=161615&view=diff
==============================================================================
--- cfe/trunk/lib/Sema/SemaStmt.cpp (original)
+++ cfe/trunk/lib/Sema/SemaStmt.cpp Thu Aug  9 15:52:43 2012
@@ -2888,6 +2888,16 @@
   // MS-style inline assembly is not fully supported, so emit a warning.
   Diag(AsmLoc, diag::warn_unsupported_msasm);
 
+  // Empty asm statements don't need to instantiate the AsmParser, etc.
+  if (AsmToks.empty()) {
+    std::string AsmString;
+    MSAsmStmt *NS =
+      new (Context) MSAsmStmt(Context, AsmLoc, /* IsSimple */ true,
+                              /* IsVolatile */ true, AsmToks, LineEnds,
+                              AsmString, EndLoc);
+    return Owned(NS);
+  }
+
   std::string AsmString = buildMSAsmString(*this, AsmToks, LineEnds);
 
   bool IsSimple;