https://llvm.org/bugs/show_bug.cgi?id=25443
Bug ID: 25443
Summary: [Polly] Stack overflow with invariant load hoisting
Product: Projects
Version: unspecified
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: Polly
Assignee: polly-...@googlegroups.com
Reporter: tob...@grosser.es
CC: llvm-bugs@lists.llvm.org
Classification: Unclassified
Created attachment 15243
--> https://llvm.org/bugs/attachment.cgi?id=15243&action=edit
Test case
With git-svn-id: https://llvm.org/svn/llvm-project/polly/trunk@252375 and
polly-opt -polly-codegen -polly-process-unprofitable the attached test case
gives me a stack overflow in the invariant-load-hoisting:
#323 0x00007fffefca2383 in
IslNodeBuilder::preloadInvariantEquivClass(std::tuple<llvm::SCEV const*,
std::forward_list<polly::MemoryAccess*, std::allocator<polly::MemoryAccess*> >,
isl_set*> const&) ()
from /home/grosser/Projects/polly/cmake_opt/lib/../lib/libPolly.so
#324 0x00007fffefca20dd in IslNodeBuilder::materializeValue(isl_id*) ()
from /home/grosser/Projects/polly/cmake_opt/lib/../lib/libPolly.so
#325 0x00007fffefca2e52 in
IslNodeBuilder::preloadInvariantLoad(polly::MemoryAccess const&, isl_set*) ()
from /home/grosser/Projects/polly/cmake_opt/lib/../lib/libPolly.so
#326 0x00007fffefca23ae in
IslNodeBuilder::preloadInvariantEquivClass(std::tuple<llvm::SCEV const*,
std::forward_list<polly::MemoryAccess*, std::allocator<polly::MemoryAccess*> >,
isl_set*> const&) ()
from /home/grosser/Projects/polly/cmake_opt/lib/../lib/libPolly.so
#327 0x00007fffefca2383 in
IslNodeBuilder::preloadInvariantEquivClass(std::tuple<llvm::SCEV const*,
std::forward_list<polly::MemoryAccess*, std::allocator<polly::MemoryAccess*> >,
isl_set*> const&) ()
from /home/grosser/Projects/polly/cmake_opt/lib/../lib/libPolly.so
#328 0x00007fffefca20dd in IslNodeBuilder::materializeValue(isl_id*) ()
from /home/grosser/Projects/polly/cmake_opt/lib/../lib/libPolly.so
#329 0x00007fffefca2e52 in
IslNodeBuilder::preloadInvariantLoad(polly::MemoryAccess const&, isl_set*) ()
from /home/grosser/Projects/polly/cmake_opt/lib/../lib/libPolly.so
#330 0x00007fffefca23ae in
IslNodeBuilder::preloadInvariantEquivClass(std::tuple<llvm::SCEV const*,
std::forward_list<polly::MemoryAccess*, std::allocator<polly::MemoryAccess*> >,
isl_set*> const&) ()
from /home/grosser/Projects/polly/cmake_opt/lib/../lib/libPolly.so
#331 0x00007fffefca2383 in
IslNodeBuilder::preloadInvariantEquivClass(std::tuple<llvm::SCEV const*,
std::forward_list<polly::MemoryAccess*, std::allocator<polly::MemoryAccess*> >,
isl_set*> const&) ()
from /home/grosser/Projects/polly/cmake_opt/lib/../lib/libPolly.so
#332 0x00007fffefca20dd in IslNodeBuilder::materializeValue(isl_id*) ()
from /home/grosser/Projects/polly/cmake_opt/lib/../lib/libPolly.so
#333 0x00007fffefca2e52 in
IslNodeBuilder::preloadInvariantLoad(polly::MemoryAccess const&, isl_set*) ()
from /home/grosser/Projects/polly/cmake_opt/lib/../lib/libPolly.so
#334 0x00007fffefca23ae in
IslNodeBuilder::preloadInvariantEquivClass(std::tuple<llvm::SCEV const*,
std::forward_list<polly::MemoryAccess*, std::allocator<polly::MemoryAccess*> >,
isl_set*> const&) ()
from /home/grosser/Projects/polly/cmake_opt/lib/../lib/libPolly.so
#335 0x00007fffefca2383 in
IslNodeBuilder::preloadInvariantEquivClass(std::tuple<llvm::SCEV const*,
std::forward_list<polly::MemoryAccess*, std::allocator<polly::MemoryAccess*> >,
isl_set*> const&) ()
from /home/grosser/Projects/polly/cmake_opt/lib/../lib/libPolly.so
This is a LNT test case reduced from MultiSource/Applications/JM/ldecod
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