[llvm-commits] CVS: llvm/lib/AsmParser/llvmAsmParser.y

[Chris Lattner]

Changes in directory llvm/lib/AsmParser:

llvmAsmParser.y updated: 1.219 -> 1.220
---
Log message:

Add a 'tail' marker for call instructions, patch contributed by
Alexander Friedman.



---
Diffs of the changes:  (+20 -4)

 llvmAsmParser.y |   24 ++++++++++++++++++++----
 1 files changed, 20 insertions(+), 4 deletions(-)


Index: llvm/lib/AsmParser/llvmAsmParser.y
diff -u llvm/lib/AsmParser/llvmAsmParser.y:1.219 llvm/lib/AsmParser/llvmAsmParser.y:1.220
--- llvm/lib/AsmParser/llvmAsmParser.y:1.219	Mon May  2 14:07:27 2005
+++ llvm/lib/AsmParser/llvmAsmParser.y	Fri May  6 00:51:46 2005
@@ -803,6 +803,7 @@
 %type <JumpTable>     JumpTable
 %type <BoolVal>       GlobalType                  // GLOBAL or CONSTANT?
 %type <BoolVal>       OptVolatile                 // 'volatile' or not
+%type <BoolVal>       OptTailCall                 // TAIL CALL or plain CALL.
 %type <Linkage>       OptLinkage
 %type <Endianness>    BigOrLittle
 
@@ -837,7 +838,7 @@
 %token DECLARE GLOBAL CONSTANT VOLATILE
 %token TO DOTDOTDOT NULL_TOK UNDEF CONST INTERNAL LINKONCE WEAK  APPENDING
 %token OPAQUE NOT EXTERNAL TARGET TRIPLE ENDIAN POINTERSIZE LITTLE BIG
-%token DEPLIBS 
+%token DEPLIBS CALL TAIL
 
 // Basic Block Terminating Operators 
 %token <TermOpVal> RET BR SWITCH INVOKE UNWIND UNREACHABLE
@@ -852,7 +853,8 @@
 
 // Other Operators
 %type  <OtherOpVal> ShiftOps
-%token <OtherOpVal> PHI_TOK CALL CAST SELECT SHL SHR VAARG VANEXT
+%token <OtherOpVal> PHI_TOK CAST SELECT SHL SHR VAARG VANEXT
+
 
 %start Module
 %%
@@ -883,6 +885,9 @@
 
 ShiftOps  : SHL | SHR;
 
+
+
+
 // These are some types that allow classification if we only want a particular 
 // thing... for example, only a signed, unsigned, or integral type.
 SIntType :  LONG |  INT |  SHORT | SBYTE;
@@ -1858,6 +1863,15 @@
 // ValueRefListE - Just like ValueRefList, except that it may also be empty!
 ValueRefListE : ValueRefList | /*empty*/ { $$ = 0; };
 
+OptTailCall : TAIL CALL {
+    $$ = true;
+  }
+  | CALL {
+    $$ = false;
+  };
+
+
+
 InstVal : ArithmeticOps Types ValueRef ',' ValueRef {
     if (!(*$2)->isInteger() && !(*$2)->isFloatingPoint() && 
         !isa<PackedType>((*$2).get()))
@@ -1944,8 +1958,8 @@
       $2->pop_front();
     }
     delete $2;  // Free the list...
-  } 
-  | CALL TypesV ValueRef '(' ValueRefListE ')' {
+  }
+  | OptTailCall TypesV ValueRef '(' ValueRefListE ')'  {
     const PointerType *PFTy;
     const FunctionType *Ty;
 
@@ -1997,6 +2011,7 @@
 
       $$ = new CallInst(V, *$5);
     }
+    cast<CallInst>($$)->setTailCall($1);
     delete $2;
     delete $5;
   }
@@ -2020,6 +2035,7 @@
   };
 
 
+
 MemoryInst : MALLOC Types {
     $$ = new MallocInst(*$2);
     delete $2;