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| author | Ana Pazos <apazos@codeaurora.org> | 2018-08-25 01:34:32 +0000 |
|---|---|---|
| committer | Ana Pazos <apazos@codeaurora.org> | 2018-08-25 01:34:32 +0000 |
| commit | 353f67a741daa97e94bd402f6394c6d89fd8a987 (patch) | |
| tree | 6169730fa1f4284457b6b9d5f9e92656e5547d92 /llvm/lib/MC/MCParser/AsmParser.cpp | |
| parent | a2e0c2462a5ed4ddabab03dfddb97efc54682bde (diff) | |
| download | bcm5719-llvm-353f67a741daa97e94bd402f6394c6d89fd8a987.tar.gz bcm5719-llvm-353f67a741daa97e94bd402f6394c6d89fd8a987.zip | |
[MC, RISCV] Fixed StringRef Assertion `Index < Length && "Invalid index!"'
Summary:
Handle the case IDVal is an empty string.
This bug was uncovered by a LLVM MC Assembler Protocol Buffer
Fuzzer for the RISC-V assembly language.
Reviewers: rnk
Reviewed By: rnk
Subscribers: rnk, niravd, pcc, peter.smith, asb, grosbach, llvm-commits, bcain, kito-cheng, shiva0217, rogfer01, PkmX
Differential Revision: https://reviews.llvm.org/D50808
llvm-svn: 340678
Diffstat (limited to 'llvm/lib/MC/MCParser/AsmParser.cpp')
| -rw-r--r-- | llvm/lib/MC/MCParser/AsmParser.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/MC/MCParser/AsmParser.cpp b/llvm/lib/MC/MCParser/AsmParser.cpp index 501a1cccf60..0a4706ed104 100644 --- a/llvm/lib/MC/MCParser/AsmParser.cpp +++ b/llvm/lib/MC/MCParser/AsmParser.cpp @@ -1842,7 +1842,7 @@ bool AsmParser::parseStatement(ParseStatementInfo &Info, // Otherwise, we have a normal instruction or directive. // Directives start with "." - if (IDVal[0] == '.' && IDVal != ".") { + if (IDVal.startswith(".") && IDVal != ".") { // There are several entities interested in parsing directives: // // 1. The target-specific assembly parser. Some directives are target |
