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<base href="https://bugs.llvm.org/">
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - slp-vectorizer crashes: Assertion `I->getParent()->getParent() == F && "Found assumption for the wrong function!"' failed."
href="https://bugs.llvm.org/show_bug.cgi?id=42400">42400</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>slp-vectorizer crashes: Assertion `I->getParent()->getParent() == F && "Found assumption for the wrong function!"' failed.
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</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>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>Scalar Optimizations
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>cszide@163.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=22143" name="attach_22143" title=".bc file of the source code">attachment 22143</a> <a href="attachment.cgi?id=22143&action=edit" title=".bc file of the source code">[details]</a></span>
.bc file of the source code
$clang -v
clang version 9.0.0 (trunk 363125)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /home/jack-zhou/Documents/llvm/llvm_truck/llvm2/build1/bin
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/8
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/5
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/5.5.0
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/6
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/6.5.0
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/7
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/7.4.0
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/8
Selected GCC installation: /usr/lib/gcc/x86_64-linux-gnu/7.4.0
Candidate multilib: .;@m64
Candidate multilib: 32;@m32
Candidate multilib: x32;@mx32
Selected multilib: .;@m64
$clang -O3 -c -emit-llvm -femit-all-decls -mllvm -disable-llvm-optzns small.c
$opt -licm -reg2mem -lowerswitch -mergereturn -hotcoldsplit -simplifycfg
-hotcoldsplit -sroa -inline -hotcoldsplit -slp-vectorizer small.bc -o
small-opt.bc
opt:
/home/jack-zhou/Documents/llvm/llvm_truck/llvm2/lib/Analysis/CodeMetrics.cpp:105:
static void llvm::CodeMetrics::collectEphemeralValues(const llvm::Function*,
llvm::AssumptionCache*, llvm::SmallPtrSetImpl<const llvm::Value*>&): Assertion
`I->getParent()->getParent() == F && "Found assumption for the wrong
function!"' failed.
Stack dump:
0. Program arguments:
/home/jack-zhou/Documents/llvm/llvm_truck/llvm2/build1/bin/opt -licm -reg2mem
-lowerswitch -mergereturn -hotcoldsplit -simplifycfg -hotcoldsplit -sroa
-inline -hotcoldsplit -slp-vectorizer small.bc -o small-opt.bc
1. Running pass 'Function Pass Manager' on module 'small.bc'.
2. Running pass 'SLP Vectorizer' on function '@q'
#0 0x000055fbc6b1987a llvm::sys::PrintStackTrace(llvm::raw_ostream&)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm2/build1/bin/opt+0x257887a)
#1 0x000055fbc6b17534 llvm::sys::RunSignalHandlers()
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm2/build1/bin/opt+0x2576534)
#2 0x000055fbc6b17672 SignalHandler(int)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm2/build1/bin/opt+0x2576672)
#3 0x00007fb9777b9890 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x12890)
#4 0x00007fb97646be97 raise
/build/glibc-OTsEL5/glibc-2.27/signal/../sysdeps/unix/sysv/linux/raise.c:51:0
#5 0x00007fb97646d801 abort /build/glibc-OTsEL5/glibc-2.27/stdlib/abort.c:81:0
#6 0x00007fb97645d39a __assert_fail_base
/build/glibc-OTsEL5/glibc-2.27/assert/assert.c:89:0
#7 0x00007fb97645d412 (/lib/x86_64-linux-gnu/libc.so.6+0x30412)
#8 0x000055fbc5dc4c41 llvm::CodeMetrics::collectEphemeralValues(llvm::Function
const*, llvm::AssumptionCache*, llvm::SmallPtrSetImpl<llvm::Value const*>&)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm2/build1/bin/opt+0x1823c41)
#9 0x000055fbc6cc4b0e llvm::SLPVectorizerPass::runImpl(llvm::Function&,
llvm::ScalarEvolution*, llvm::TargetTransformInfo*, llvm::TargetLibraryInfo*,
llvm::AAResults*, llvm::LoopInfo*, llvm::DominatorTree*,
llvm::AssumptionCache*, llvm::DemandedBits*, llvm::OptimizationRemarkEmitter*)
(.part.1407)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm2/build1/bin/opt+0x2723b0e)
#10 0x000055fbc6cc66d1 (anonymous
namespace)::SLPVectorizer::runOnFunction(llvm::Function&)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm2/build1/bin/opt+0x27256d1)
#11 0x000055fbc64d2189 llvm::FPPassManager::runOnFunction(llvm::Function&)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm2/build1/bin/opt+0x1f31189)
#12 0x000055fbc64d2281 llvm::FPPassManager::runOnModule(llvm::Module&)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm2/build1/bin/opt+0x1f31281)
#13 0x000055fbc64d13e1 llvm::legacy::PassManagerImpl::run(llvm::Module&)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm2/build1/bin/opt+0x1f303e1)
#14 0x000055fbc4dba0a9 main
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm2/build1/bin/opt+0x8190a9)
#15 0x00007fb97644eb97 __libc_start_main
/build/glibc-OTsEL5/glibc-2.27/csu/../csu/libc-start.c:344:0
#16 0x000055fbc4e3f3fa _start
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm2/build1/bin/opt+0x89e3fa)
Aborted (core dumped)
---------------------------------------------------
union a {
signed char b;
unsigned char c;
} g;
short int e, n, m, k, j;
unsigned short int f[2][8];
signed char h;
int *l;
int *o(unsigned short int *, unsigned short int, short int *, union a);
union a p(unsigned short int, short int, int *);
unsigned int q() {
int r;
for (;;) {
unsigned short int *s = &f[1][6];
union a t;
int u[8];
if (t.b) {
int v = j;
for (; r; r = 5)
;
o(s, 6, &e, p(0, v, &u[1]));
}
}
}
int *o(unsigned short int *w, unsigned short int x, short int *y, union a aa) {
signed char *ab[1];
int i;
for (i = 0; i; i++)
ab[i] = &h;
for (; i;)
for (; i; i)
for (n;; m = 5) {
int c;
if (aa.c)
continue;
}
for (k;;)
;
}
union a p(unsigned short int d, short int ae, int *af) {
for (; e;) {
unsigned short int ag;
*l = e;
if (*af)
continue;
}
return g;
}</pre>
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