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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 - loop-interchange crashes: Assertion `isa<X>(Val) && "cast<Ty>() argument of incompatible type!"' failed."
href="https://bugs.llvm.org/show_bug.cgi?id=43473">43473</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>loop-interchange crashes: Assertion `isa<X>(Val) && "cast<Ty>() argument of incompatible type!"' 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=22585" name="attach_22585" title="bugpoint-reduced-simplified.bc">attachment 22585</a> <a href="attachment.cgi?id=22585&action=edit" title="bugpoint-reduced-simplified.bc">[details]</a></span>
bugpoint-reduced-simplified.bc
$clang -v
clang version 10.0.0 (trunk 372974)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /home/jack-zhou/Documents/llvm/llvm_truck/llvm2/build10/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
$opt bugpoint-reduced-simplified.bc -loop-interchange
WARNING: You're attempting to print out a bitcode file.
This is inadvisable as it may cause display problems. If
you REALLY want to taste LLVM bitcode first-hand, you
can force output with the `-f' option.
opt:
/home/jack-zhou/Documents/llvm/llvm_truck/llvm2/include/llvm/Support/Casting.h:264:
typename llvm::cast_retty<X, Y*>::ret_type llvm::cast(Y*) [with X =
llvm::PHINode; Y = llvm::User; typename llvm::cast_retty<X, Y*>::ret_type =
llvm::PHINode*]: Assertion `isa<X>(Val) && "cast<Ty>() argument of incompatible
type!"' failed.
Stack dump:
0. Program arguments:
/home/jack-zhou/Documents/llvm/llvm_truck/llvm2/build10/bin/opt
bugpoint-reduced-simplified.bc -loop-interchange
1. Running pass 'Function Pass Manager' on module
'bugpoint-reduced-simplified.bc'.
2. Running pass 'Loop Pass Manager' on function '@kernel_gemver'
3. Running pass 'Interchanges loops for cache reuse' on basic block
'%for.body25.us'
#0 0x0000562006557baa llvm::sys::PrintStackTrace(llvm::raw_ostream&)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm2/build10/bin/opt+0x2783baa)
#1 0x0000562006555884 llvm::sys::RunSignalHandlers()
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm2/build10/bin/opt+0x2781884)
#2 0x00005620065559c2 SignalHandler(int)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm2/build10/bin/opt+0x27819c2)
#3 0x00007fcbf96f9890 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x12890)
#4 0x00007fcbf83abe97 raise
/build/glibc-OTsEL5/glibc-2.27/signal/../sysdeps/unix/sysv/linux/raise.c:51:0
#5 0x00007fcbf83ad801 abort /build/glibc-OTsEL5/glibc-2.27/stdlib/abort.c:81:0
#6 0x00007fcbf839d39a __assert_fail_base
/build/glibc-OTsEL5/glibc-2.27/assert/assert.c:89:0
#7 0x00007fcbf839d412 (/lib/x86_64-linux-gnu/libc.so.6+0x30412)
#8 0x000056200634abd6 (anonymous
namespace)::LoopInterchangeTransform::transform()
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm2/build10/bin/opt+0x2576bd6)
#9 0x000056200634df95 (anonymous
namespace)::LoopInterchange::processLoopList(llvm::SmallVector<llvm::Loop*,
8u>)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm2/build10/bin/opt+0x2579f95)
#10 0x000056200634ebdd (anonymous
namespace)::LoopInterchange::runOnLoop(llvm::Loop*, llvm::LPPassManager&)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm2/build10/bin/opt+0x257abdd)
#11 0x000056200582862b llvm::LPPassManager::runOnFunction(llvm::Function&)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm2/build10/bin/opt+0x1a5462b)
#12 0x0000562005e96209 llvm::FPPassManager::runOnFunction(llvm::Function&)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm2/build10/bin/opt+0x20c2209)
#13 0x0000562005e96301 llvm::FPPassManager::runOnModule(llvm::Module&)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm2/build10/bin/opt+0x20c2301)
#14 0x0000562005e95461 llvm::legacy::PassManagerImpl::run(llvm::Module&)
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm2/build10/bin/opt+0x20c1461)
#15 0x0000562004665b4f main
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm2/build10/bin/opt+0x891b4f)
#16 0x00007fcbf838eb97 __libc_start_main
/build/glibc-OTsEL5/glibc-2.27/csu/../csu/libc-start.c:344:0
#17 0x00005620046ddc7a _start
(/home/jack-zhou/Documents/llvm/llvm_truck/llvm2/build10/bin/opt+0x909c7a)
Aborted (core dumped)
--------------------------------------------------
; ModuleID = 'bugpoint-reduced-simplified.bc'
source_filename = "llvm-link"
target datalayout =
"e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
define dso_local fastcc void @kernel_gemver() unnamed_addr #0 {
entry:
br label %for.body25.us
for.body25.us: ; preds =
%for.cond26.for.end44_crit_edge.us, %entry
%indvars.iv28.us = phi i64 [ undef, %entry ], [ %indvars.iv.next29.us,
%for.cond26.for.end44_crit_edge.us ]
%arrayidx30.us = getelementptr inbounds double, double* undef, i64
%indvars.iv28.us
br label %for.body28.us
for.body28.us: ; preds = %for.body28.us,
%for.body25.us
%indvars.iv26.us = phi i64 [ 0, %for.body25.us ], [ %indvars.iv.next27.us,
%for.body28.us ]
%0 = load double, double* %arrayidx30.us, align 8, !tbaa !1
store double undef, double* %arrayidx30.us, align 8, !tbaa !1
%indvars.iv.next27.us = add nuw nsw i64 %indvars.iv26.us, 1
br i1 undef, label %for.body28.us, label %for.cond26.for.end44_crit_edge.us
for.cond26.for.end44_crit_edge.us: ; preds = %for.body28.us
%inc43.lcssa.wide.us = phi i64 [ %indvars.iv.next27.us, %for.body28.us ]
%1 = trunc i64 %inc43.lcssa.wide.us to i32
%indvars.iv.next29.us = add nsw i64 %indvars.iv28.us, 1
br i1 undef, label %for.body25.us, label
%for.cond23.for.end47_crit_edge.us-lcssa.us
for.cond23.for.end47_crit_edge.us-lcssa.us: ; preds =
%for.cond26.for.end44_crit_edge.us
unreachable
}
attributes #0 = { "use-soft-float"="false" }
!llvm.module.flags = !{!0}
!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{!2, !2, i64 0}
!2 = !{!"double", !3, i64 0}
!3 = !{!"omnipotent char", !4, i64 0}
!4 = !{!"Simple C/C++ TBAA"}</pre>
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