| Issue |
151686
|
| Summary |
Assertion `EPResumeVal && "must have a resume value for the canonical IV"' failed.
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
TatyanaDoubts
|
To reproduce run opt with the test below using -passes=loop-vectorize:
```
; ModuleID = './reduced.ll'
source_filename = "./reduced.ll"
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128-ni:1-p2:32:8:8:32-ni:2"
target triple = "x86_64-unknown-linux-gnu"
define i32 @wombat() gc "statepoint-example" {
bb:
br label %bb2
bb1: ; preds = %bb2
%phi = phi i8 [ %trunc, %bb2 ]
ret i32 0
bb2: ; preds = %bb2, %bb
%phi3 = phi i32 [ 0, %bb ], [ %add5, %bb2 ]
%phi4 = phi i32 [ 0, %bb ], [ %add, %bb2 ]
%add = add i32 %phi4, -16777216
%trunc = trunc i32 %phi4 to i8
%add5 = add i32 %phi3, 1
%icmp = icmp ugt i32 %phi3, 1050
br i1 %icmp, label %bb1, label %bb2
}
```
Reproducer: https://godbolt.org/z/xz3sEWhTY
Stack dump:
```
0. Program arguments: /opt/compiler-explorer/clang-assertions-trunk/bin/opt -o /app/output.s -S -passes=loop-vectorize <source>
1. Running pass "function(loop-vectorize<no-interleave-forced-only;no-vectorize-forced-only;>)" on module "<source>"
2. Running pass "loop-vectorize<no-interleave-forced-only;no-vectorize-forced-only;>" on function "wombat"
#0 0x00000000056729e8 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x56729e8)
#1 0x000000000566f894 SignalHandler(int, siginfo_t*, void*) Signals.cpp:0:0
#2 0x00007685c0442520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
#3 0x00007685c04969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
#4 0x00007685c0442476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
#5 0x00007685c04287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
#6 0x00007685c042871b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
#7 0x00007685c0439e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
#8 0x00000000034821cd preparePlanForEpilogueVectorLoop(llvm::VPlan&, llvm::Loop*, llvm::DenseMap<llvm::SCEV const*, llvm::Value*, llvm::DenseMapInfo<llvm::SCEV const*, void>, llvm::detail::DenseMapPair<llvm::SCEV const*, llvm::Value*>> const&, llvm::EpilogueLoopVectorizationInfo const&) LoopVectorize.cpp:0:0
#9 0x00000000034a4c56 llvm::LoopVectorizePass::processLoop(llvm::Loop*) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x34a4c56)
#10 0x00000000034a6690 llvm::LoopVectorizePass::runImpl(llvm::Function&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x34a6690)
#11 0x00000000034a6cf7 llvm::LoopVectorizePass::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x34a6cf7)
#12 0x0000000002db62be llvm::detail::PassModel<llvm::Function, llvm::LoopVectorizePass, llvm::AnalysisManager<llvm::Function>>::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x2db62be)
#13 0x0000000005464431 llvm::PassManager<llvm::Function, llvm::AnalysisManager<llvm::Function>>::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x5464431)
#14 0x0000000000ebde5e llvm::detail::PassModel<llvm::Function, llvm::PassManager<llvm::Function, llvm::AnalysisManager<llvm::Function>>, llvm::AnalysisManager<llvm::Function>>::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0xebde5e)
#15 0x0000000005464904 llvm::ModuleToFunctionPassAdaptor::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x5464904)
#16 0x00000000009637fe llvm::detail::PassModel<llvm::Module, llvm::ModuleToFunctionPassAdaptor, llvm::AnalysisManager<llvm::Module>>::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x9637fe)
#17 0x00000000054624d1 llvm::PassManager<llvm::Module, llvm::AnalysisManager<llvm::Module>>::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x54624d1)
#18 0x000000000096daca llvm::runPassPipeline(llvm::StringRef, llvm::Module&, llvm::TargetMachine*, llvm::TargetLibraryInfoImpl*, llvm::ToolOutputFile*, llvm::ToolOutputFile*, llvm::ToolOutputFile*, llvm::StringRef, llvm::ArrayRef<llvm::PassPlugin>, llvm::ArrayRef<std::function<void (llvm::PassBuilder&)>>, llvm::opt_tool::OutputKind, llvm::opt_tool::VerifierKind, bool, bool, bool, bool, bool, bool, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x96daca)
#19 0x0000000000961b7b optMain (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x961b7b)
#20 0x00007685c0429d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#21 0x00007685c0429e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#22 0x0000000000958c35 _start (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x958c35)
Program terminated with signal: SIGSEGV
Compiler returned: 139
```
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