Revert r125595, which is an X86-only undocumented assembly syntax extension

enabled for all targets. Non-X86 targets should not have this behavior
enabled by default.

Joerg, if you would like to resubmit with the behavior conditionalized to be
X86-ELF only, that's fine.

llvm-svn: 126336

3 files changed, 0 insertions, 28 deletions

diff --git a/llvm/lib/MC/MCParser/AsmParser.cpp b/llvm/lib/MC/MCParser/AsmParser.cpp
index c6d0da609b3..ae072d883ba 100644
--- a/llvm/lib/MC/MCParser/AsmParser.cpp
+++ b/llvm/lib/MC/MCParser/AsmParser.cpp
@@ -173,7 +173,6 @@ private:
   bool ParsePrimaryExpr(const MCExpr *&Res, SMLoc &EndLoc);
   bool ParseBinOpRHS(unsigned Precedence, const MCExpr *&Res, SMLoc &EndLoc);
   bool ParseParenExpr(const MCExpr *&Res, SMLoc &EndLoc);
-  bool ParseBracketExpr(const MCExpr *&Res, SMLoc &EndLoc);
 
   /// ParseIdentifier - Parse an identifier or string (as a quoted identifier)
   /// and set \arg Res to the identifier contents.
@@ -493,20 +492,6 @@ bool AsmParser::ParseParenExpr(const MCExpr *&Res, SMLoc &EndLoc) {
   return false;
 }
 
-/// ParseBracketExpr - Parse a bracket expression and return it.
-/// NOTE: This assumes the leading '[' has already been consumed.
-///
-/// bracketexpr ::= expr]
-///
-bool AsmParser::ParseBracketExpr(const MCExpr *&Res, SMLoc &EndLoc) {
-  if (ParseExpression(Res)) return true;
-  if (Lexer.isNot(AsmToken::RBrac))
-    return TokError("expected ']' in brackets expression");
-  EndLoc = Lexer.getLoc();
-  Lex();
-  return false;
-}
-
 /// ParsePrimaryExpr - Parse a primary expression and return it.
 ///  primaryexpr ::= (parenexpr
 ///  primaryexpr ::= symbol
@@ -602,9 +587,6 @@ bool AsmParser::ParsePrimaryExpr(const MCExpr *&Res, SMLoc &EndLoc) {
   case AsmToken::LParen:
     Lex(); // Eat the '('.
     return ParseParenExpr(Res, EndLoc);
-  case AsmToken::LBrac:
-    Lex(); // Eat the '['.
-    return ParseBracketExpr(Res, EndLoc);
   case AsmToken::Minus:
     Lex(); // Eat the operator.
     if (ParsePrimaryExpr(Res, EndLoc))
diff --git a/llvm/test/MC/AsmParser/exprs.s b/llvm/test/MC/AsmParser/exprs.s
index 0861922b603..153701d6852 100644
--- a/llvm/test/MC/AsmParser/exprs.s
+++ b/llvm/test/MC/AsmParser/exprs.s
@@ -35,8 +35,6 @@ k:
         check_expr 1 << 1, 2
         check_expr 2 >> 1, 1
         check_expr (~0 >> 1), -1
-        check_expr [~0 >> 1], -1
-        check_expr 4 * [4 + (3 + [2 * 2] + 1)], 48
         check_expr 3 - 2, 1
         check_expr 1 ^ 3, 2
         check_expr 1 && 2, 1
diff --git a/llvm/test/MC/AsmParser/paren.s b/llvm/test/MC/AsmParser/paren.s
index 702e309ddee..e69de29bb2d 100644
--- a/llvm/test/MC/AsmParser/paren.s
+++ b/llvm/test/MC/AsmParser/paren.s
@@ -1,8 +0,0 @@
-// RUN: not llvm-mc -triple i386-unknown-unknown %s 2> %t1 > %t2
-// RUN: FileCheck < %t1 %s
-
-// CHECK: error: expected ']' in brackets expression
-.size	x, [.-x)
-
-// CHECK: error: expected ')' in parentheses expression
-.size	y, (.-y]