Pull in r229911 from upstream llvm trunk (by Benjamin Kramer):

  MC: Allow multiple comma-separated expressions on the .uleb128 directive.

  For compatiblity with GNU as. Binutils documents this as
  '.uleb128 expressions'. Subtle, isn't it?

Introduced here: http://svnweb.freebsd.org/changeset/base/281775

Index: lib/MC/MCParser/AsmParser.cpp
===================================================================
--- lib/MC/MCParser/AsmParser.cpp
+++ lib/MC/MCParser/AsmParser.cpp
@@ -3636,22 +3636,28 @@ bool AsmParser::parseDirectiveSpace(StringRef IDVa
 }
 
 /// parseDirectiveLEB128
-/// ::= (.sleb128 | .uleb128) expression
+/// ::= (.sleb128 | .uleb128) [ expression (, expression)* ]
 bool AsmParser::parseDirectiveLEB128(bool Signed) {
   checkForValidSection();
   const MCExpr *Value;
 
-  if (parseExpression(Value))
-    return true;
+  for (;;) {
+    if (parseExpression(Value))
+      return true;
 
-  if (getLexer().isNot(AsmToken::EndOfStatement))
-    return TokError("unexpected token in directive");
+    if (Signed)
+      getStreamer().EmitSLEB128Value(Value);
+    else
+      getStreamer().EmitULEB128Value(Value);
 
-  if (Signed)
-    getStreamer().EmitSLEB128Value(Value);
-  else
-    getStreamer().EmitULEB128Value(Value);
+    if (getLexer().is(AsmToken::EndOfStatement))
+      break;
 
+    if (getLexer().isNot(AsmToken::Comma))
+      return TokError("unexpected token in directive");
+    Lex();
+  }
+
   return false;
 }
 
Index: test/MC/ELF/uleb.s
===================================================================
--- test/MC/ELF/uleb.s
+++ test/MC/ELF/uleb.s
@@ -11,16 +11,17 @@ foo:
 	.uleb128	128
 	.uleb128	16383
 	.uleb128	16384
+        .uleb128	23, 42
 
 // ELF_32:   Name: .text
 // ELF_32:   SectionData (
-// ELF_32:     0000: 00017F80 01FF7F80 8001
+// ELF_32:     0000: 00017F80 01FF7F80 8001172A
 // ELF_32:   )
 // ELF_64:   Name: .text
 // ELF_64:   SectionData (
-// ELF_64:     0000: 00017F80 01FF7F80 8001
+// ELF_64:     0000: 00017F80 01FF7F80 8001172A
 // ELF_64:   )
 // MACHO_32: ('section_name', '__text\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
-// MACHO_32: ('_section_data', '00017f80 01ff7f80 8001')
+// MACHO_32: ('_section_data', '00017f80 01ff7f80 8001172a')
 // MACHO_64: ('section_name', '__text\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
-// MACHO_64: ('_section_data', '00017f80 01ff7f80 8001')
+// MACHO_64: ('_section_data', '00017f80 01ff7f80 8001172a')