Add llvm patch corresponding to r281775.

2015-04-20 17:37:37 +00:00 · 2015-04-20 17:37:37 +00:00 · 867073d7fb
commit 867073d7fb
parent 98095a5dd2
1 changed files with 77 additions and 0 deletions
--- a/contrib/llvm/patches/patch-13-llvm-r229911-uleb128-commas.diff
+++ b/contrib/llvm/patches/patch-13-llvm-r229911-uleb128-commas.diff
@ -0,0 +1,77 @@
+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')