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Make the size and expr arguments of .fill directive optional. 

llvm-svn: 191318
This commit is contained in:
Roman Divacky 2013-09-24 17:44:41 +00:00
parent a32150c3c7
commit e33098f5cb
2 changed files with 37 additions and 16 deletions
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37
llvm/lib/MC/MCParser/AsmParser.cpp
View File

@ -2353,7 +2353,7 @@ bool AsmParser::parseDirectiveZero() {
}
/// parseDirectiveFill
/// ::= .fill expression , expression , expression
/// ::= .fill expression [ , expression [ , expression ] ]
bool AsmParser::parseDirectiveFill() {
checkForValidSection();
@ -2361,26 +2361,31 @@ bool AsmParser::parseDirectiveFill() {
if (parseAbsoluteExpression(NumValues))
return true;
if (getLexer().isNot(AsmToken::Comma))
return TokError("unexpected token in '.fill' directive");
Lex();
int64_t FillSize = 1;
int64_t FillExpr = 0;
int64_t FillSize;
if (parseAbsoluteExpression(FillSize))
return true;
if (getLexer().isNot(AsmToken::EndOfStatement)) {
if (getLexer().isNot(AsmToken::Comma))
return TokError("unexpected token in '.fill' directive");
Lex();
if (getLexer().isNot(AsmToken::Comma))
return TokError("unexpected token in '.fill' directive");
Lex();
if (parseAbsoluteExpression(FillSize))
return true;
int64_t FillExpr;
if (parseAbsoluteExpression(FillExpr))
return true;
if (getLexer().isNot(AsmToken::EndOfStatement)) {
if (getLexer().isNot(AsmToken::Comma))
return TokError("unexpected token in '.fill' directive");
Lex();
if (getLexer().isNot(AsmToken::EndOfStatement))
return TokError("unexpected token in '.fill' directive");
if (parseAbsoluteExpression(FillExpr))
return true;
Lex();
if (getLexer().isNot(AsmToken::EndOfStatement))
return TokError("unexpected token in '.fill' directive");
Lex();
}
}
if (FillSize != 1 && FillSize != 2 && FillSize != 4 && FillSize != 8)
return TokError("invalid '.fill' size, expected 1, 2, 4, or 8");

16
llvm/test/MC/AsmParser/directive_fill.s
View File

@ -15,3 +15,19 @@ TEST1:
# CHECK: .quad 4
TEST2:
.fill 1, 8, 4
# CHECK: TEST3
# CHECK: .byte 0
# CHECK: .byte 0
# CHECK: .byte 0
# CHECK: .byte 0
TEST3:
.fill 4
# CHECK: TEST4
# CHECK: .short 0
# CHECK: .short 0
# CHECK: .short 0
# CHECK: .short 0
TEST4:
.fill 4, 2