Merging r229911 by d0k:

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?

git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_36@231675 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/MC/MCParser/AsmParser.cpp b/lib/MC/MCParser/AsmParser.cpp
index 8eff90a9ef7f532a085647bf9ee53f7fdea2d27c..e2a4fc1bef7bd5eaf442c8af3118806cc04df0ab 100644 (file)
--- a/lib/MC/MCParser/AsmParser.cpp
+++ b/lib/MC/MCParser/AsmParser.cpp
@@ -3636,21 +3636,27 @@ bool AsmParser::parseDirectiveSpace(StringRef IDVal) {
 }
 
 /// 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;
 }

diff --git a/test/MC/ELF/uleb.s b/test/MC/ELF/uleb.s
index d755cc23e392e480c595e41e0593e11a5d23d3a2..5d203a93f0220b164ef4722b45c5a67fd69f4157 100644 (file)
--- a/test/MC/ELF/uleb.s
+++ b/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')