<html>
<head>
<base href="http://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 --- - Assertion `CanSROA' failed."
href="http://llvm.org/bugs/show_bug.cgi?id=16651">16651</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Assertion `CanSROA' failed.
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</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>-New Bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>chandlerc@gmail.com
</td>
</tr>
<tr>
<th>Reporter</th>
<td>jan.smets@alcatel-lucent.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Compile with -O2
clang: /jasmets/clang/llvm/lib/Transforms/Scalar/SROA.cpp:1954:
bool<unnamed>::AllocaPartitionRewriter::visit(const<unnamed>::Partition*):
Assertion `CanSROA' failed.
0 clang 0x0000000001f52fb2 llvm::sys::PrintStackTrace(_IO_FILE*) +
34
1 clang 0x0000000001f541aa
2 libpthread.so.0 0x00007fa68ab89500
3 libc.so.6 0x00007fa689c6d8a5 gsignal + 53
4 libc.so.6 0x00007fa689c6f085 abort + 373
5 libc.so.6 0x00007fa689c66a1e
6 libc.so.6 0x00007fa689c66ae0 __assert_perror_fail + 0
7 clang 0x0000000001b6117e
8 clang 0x0000000001b630d0
9 clang 0x0000000001b64e11
10 clang 0x0000000001b65a7d
11 clang 0x0000000001eed908
llvm::FPPassManager::runOnFunction(llvm::Function&) + 568
12 clang 0x0000000001eedac7
llvm::FunctionPassManagerImpl::run(llvm::Function&) + 183
13 clang 0x0000000001eeddec
llvm::FunctionPassManager::run(llvm::Function&) + 220
14 clang 0x000000000080a2c6
clang::EmitBackendOutput(clang::DiagnosticsEngine&, clang::CodeGenOptions
const&, clang::TargetOptions const&, clang::LangOptions const&, llvm::Module*,
clang::BackendAction, llvm::raw_ostream*) + 1686
15 clang 0x00000000008078d9
16 clang 0x00000000009af2fe clang::ParseAST(clang::Sema&, bool, bool)
+ 382
17 clang 0x00000000008065ae clang::CodeGenAction::ExecuteAction() +
78
18 clang 0x0000000000685d69 clang::FrontendAction::Execute() + 313
19 clang 0x00000000006674c5
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) + 341
20 clang 0x00000000006484d7
clang::ExecuteCompilerInvocation(clang::CompilerInstance*) + 1543
21 clang 0x000000000063e0f8 cc1_main(char const**, char const**, char
const*, void*) + 984
22 clang 0x0000000000646118 main + 7448
23 libc.so.6 0x00007fa689c59cdd __libc_start_main + 253
24 clang 0x000000000063db39
Stack dump:
0. Program arguments: /jasmets/clang/prefix/bin/clang -cc1 -triple
x86_64-unknown-linux-gnu -emit-obj -disable-free -main-file-name test.c
-mrelocation-model static -fmath-errno -masm-verbose -mconstructor-aliases
-munwind-tables -target-cpu x86-64 -target-linker-version 2.20.51.0.2
-momit-leaf-frame-pointer -coverage-file /tmp/test -resource-dir
/jasmets/clang/prefix/bin/../lib/clang/3.4 -internal-isystem /usr/local/include
-internal-isystem /jasmets/clang/prefix/bin/../lib/clang/3.4/include
-internal-externc-isystem /include -internal-externc-isystem /usr/include -O2
-fdebug-compilation-dir /jasmets/HEAD-CLANG/panos/rchips -ferror-limit 19
-fmessage-length 197 -mstackrealign -fobjc-runtime=gcc
-fobjc-default-synthesize-properties -fdiagnostics-show-option
-fcolor-diagnostics -vectorize-loops -o /tmp/test -x c /tmp/test.c
1. <eof> parser at end of file
2. Per-function optimization
3. Running pass 'SROA' on function '@bla'
clang: error: unable to execute command: Aborted
clang: error: clang frontend command failed due to signal (use -v to see
invocation)
clang version 3.4 (trunk 186576)
Target: x86_64-unknown-linux-gnu
Thread model: posix
typedef struct
{
unsigned int lower;
unsigned int upper;
} TICK;
extern volatile TICK vxAbsTicks;
typedef struct
{
unsigned char ace : 1;
unsigned char something;
unsigned char dir : 1;
typeof(vxAbsTicks.lower) xyz;
} tBla;
void bla(void)
{
unsigned d;
{
{
for (d = 0; d < 2; d++)
{
int dir = (d == 0) ? 1:2 ;
{
{
{
tBla * path = 0x12334;
tBla temp_path;
temp_path = *path;
if (temp_path.ace == 1) break;
if (temp_path.dir != dir) continue;
printf("Something");
}
}
}
printf("\n");
}
}
}
}</pre>
</div>
</p>
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