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For PR1553:
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
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@ -177,6 +177,8 @@ HexFPConstant 0x[0-9A-Fa-f]+
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*/
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HexIntConstant [us]0x[0-9A-Fa-f]+
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/* WSNL - shorthand for newline followed by whitespace */
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WSNL [ \r\t\n]*$
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%%
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{Comment} { /* Ignore comments for now */ }
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@ -234,6 +236,10 @@ noreturn { return NORETURN; }
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noalias { return NOALIAS; }
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byval { return BYVAL; }
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nest { return NEST; }
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sext{WSNL} { // For auto-upgrade only, drop in LLVM 3.0
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return SIGNEXT; }
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zext{WSNL} { // For auto-upgrade only, drop in LLVM 3.0
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return ZEROEXT; }
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void { RET_TY(Type::VoidTy, VOID); }
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float { RET_TY(Type::FloatTy, FLOAT); }
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@ -1225,7 +1225,9 @@ OptCallingConv : /*empty*/ { $$ = CallingConv::C; } |
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};
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ParamAttr : ZEROEXT { $$ = ParamAttr::ZExt; }
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| ZEXT { $$ = ParamAttr::ZExt; }
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| SIGNEXT { $$ = ParamAttr::SExt; }
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| SEXT { $$ = ParamAttr::SExt; }
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| INREG { $$ = ParamAttr::InReg; }
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| SRET { $$ = ParamAttr::StructRet; }
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| NOALIAS { $$ = ParamAttr::NoAlias; }
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12
test/Assembler/2007-07-30-AutoUpgradeZextSext.ll
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12
test/Assembler/2007-07-30-AutoUpgradeZextSext.ll
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@ -0,0 +1,12 @@
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; Test that upgrading zext/sext attributes to zeroext and signext
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; works correctly.
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; PR1553
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; RUN: llvm-as < %s > /dev/null
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define i32 @bar() {
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%t = call i8 @foo( i8 10 sext ) zext
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%x = zext i8 %t to i32
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ret i32 %x
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}
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declare i8 @foo(i8 signext ) zeroext
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