Make the AsmParser auto-upgrade the old zext and sext
keywords for parameter attributes and handle the
end-of-line ambiguity.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40610
91177308-0d34-0410-b5e6-
96231b3b80d8
*/
HexIntConstant [us]0x[0-9A-Fa-f]+
+/* WSNL - shorthand for newline followed by whitespace */
+WSNL [ \r\t\n]*$
%%
{Comment} { /* Ignore comments for now */ }
noalias { return NOALIAS; }
byval { return BYVAL; }
nest { return NEST; }
+sext{WSNL} { // For auto-upgrade only, drop in LLVM 3.0
+ return SIGNEXT; }
+zext{WSNL} { // For auto-upgrade only, drop in LLVM 3.0
+ return ZEROEXT; }
void { RET_TY(Type::VoidTy, VOID); }
float { RET_TY(Type::FloatTy, FLOAT); }
};
ParamAttr : ZEROEXT { $$ = ParamAttr::ZExt; }
+ | ZEXT { $$ = ParamAttr::ZExt; }
| SIGNEXT { $$ = ParamAttr::SExt; }
+ | SEXT { $$ = ParamAttr::SExt; }
| INREG { $$ = ParamAttr::InReg; }
| SRET { $$ = ParamAttr::StructRet; }
| NOALIAS { $$ = ParamAttr::NoAlias; }
--- /dev/null
+; Test that upgrading zext/sext attributes to zeroext and signext
+; works correctly.
+; PR1553
+; RUN: llvm-as < %s > /dev/null
+
+define i32 @bar() {
+ %t = call i8 @foo( i8 10 sext ) zext
+ %x = zext i8 %t to i32
+ ret i32 %x
+}
+
+declare i8 @foo(i8 signext ) zeroext