<html>
<head>
<base href="https://llvm.org/bugs/" />
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Regression(270823:273743): Crash on invalid if"
href="https://llvm.org/bugs/show_bug.cgi?id=28388">28388</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Regression(270823:273743): Crash on invalid if
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>C++
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>nicolasweber@gmx.de
</td>
</tr>
<tr>
<th>CC</th>
<td>dgregor@apple.com, llvm-bugs@lists.llvm.org
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>thakis@thakis:/tmp$ cat KeyboardEventManager-7781f5.cpp
#define errno *__errno_location
int fn1() {
if (errno;
thakis@thakis:/tmp$ ~/src/llvm-build/bin/clang -c
KeyboardEventManager-7781f5.cpp
KeyboardEventManager-7781f5.cpp:3:9: error: use of undeclared identifier
'__errno_location'
if (errno;
^
KeyboardEventManager-7781f5.cpp:1:16: note: expanded from macro 'errno'
#define errno *__errno_location
^
KeyboardEventManager-7781f5.cpp:3:14: error: expected ')'
if (errno;
^
KeyboardEventManager-7781f5.cpp:3:8: note: to match this '('
if (errno;
^
#0 0x0000000001b8a5d5 llvm::sys::PrintStackTrace(llvm::raw_ostream&)
(/usr/local/google/home/thakis/src/llvm-build/bin/clang-3.8+0x1b8a5d5)
#1 0x0000000001b88236 llvm::sys::RunSignalHandlers()
(/usr/local/google/home/thakis/src/llvm-build/bin/clang-3.8+0x1b88236)
#2 0x0000000001b88461 SignalHandler(int)
(/usr/local/google/home/thakis/src/llvm-build/bin/clang-3.8+0x1b88461)
#3 0x00007f9def437330 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x10330)
#4 0x0000000002feab69 clang::Expr::getExprLoc() const
(/usr/local/google/home/thakis/src/llvm-build/bin/clang-3.8+0x2feab69)
#5 0x0000000002b0ae62 clang::Sema::ActOnIfStmt(clang::SourceLocation, bool,
clang::Sema::ConditionResult, clang::Stmt*, clang::SourceLocation,
clang::Stmt*)
(/usr/local/google/home/thakis/src/llvm-build/bin/clang-3.8+0x2b0ae62)
#6 0x0000000002671a00 clang::Parser::ParseIfStatement(clang::SourceLocation*)
(/usr/local/google/home/thakis/src/llvm-build/bin/clang-3.8+0x2671a00)
#7 0x000000000266f1fb
clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*,
32u>&, clang::Parser::AllowedContsructsKind, clang::SourceLocation*,
clang::Parser::ParsedAttributesWithRange&)
(/usr/local/google/home/thakis/src/llvm-build/bin/clang-3.8+0x266f1fb)
#8 0x000000000266f71d
clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*,
32u>&, clang::Parser::AllowedContsructsKind, clang::SourceLocation*)
(/usr/local/google/home/thakis/src/llvm-build/bin/clang-3.8+0x266f71d)
#9 0x0000000002672be9 clang::Parser::ParseCompoundStatementBody(bool)
(/usr/local/google/home/thakis/src/llvm-build/bin/clang-3.8+0x2672be9)
#10 0x0000000002674d5f clang::Parser::ParseFunctionStatementBody(clang::Decl*,
clang::Parser::ParseScope&)
(/usr/local/google/home/thakis/src/llvm-build/bin/clang-3.8+0x2674d5f)
#11 0x0000000002602449
clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&,
clang::Parser::ParsedTemplateInfo const&, clang::Parser::LateParsedAttrList*)
(/usr/local/google/home/thakis/src/llvm-build/bin/clang-3.8+0x2602449)
#12 0x000000000261f370 clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&,
unsigned int, clang::SourceLocation*, clang::Parser::ForRangeInit*)
(/usr/local/google/home/thakis/src/llvm-build/bin/clang-3.8+0x261f370)</pre>
</div>
</p>
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