https://bugs.llvm.org/show_bug.cgi?id=43402
Bug ID: 43402
Summary: After r359095, Assertion failed: ((HOp.getValueType()
== MVT::v2f64 || HOp.getValueType() == MVT::v4f64) &&
HOp.getValueType() == VT && "Unexpected type for
h-op"), function foldShuffleOfHorizOp
Product: new-bugs
Version: trunk
Hardware: PC
OS: Windows NT
Status: NEW
Severity: enhancement
Priority: P
Component: new bugs
Assignee: unassignedb...@nondot.org
Reporter: dimi...@andric.com
CC: htmldevelo...@gmail.com, llvm-bugs@lists.llvm.org
As reported in https://bugs.freebsd.org/240759, after
https://reviews.llvm.org/rL359095 ("[x86] make sure horizontal op and broadcast
types match to simplify (bug 41414)"), self-hosting llvm 9.0.0 for i386 results
in:
Assertion failed: ((HOp.getValueType() == MVT::v2f64 || HOp.getValueType() ==
MVT::v4f64) && HOp.getValueType() == VT && "Unexpected type for h-op"),
function foldShuffleOfHorizOp, file
/home/dim/src/llvm/trunk/lib/Target/X86/X86ISelLowering.cpp, line 32854.
Stack dump:
0. Program arguments: /home/dim/ins/llvm-trunk-r359095/bin/clang -cc1
-triple i386-- -S -target-cpu haswell -O1 -vectorize-slp xray-account-min.cpp
1. <eof> parser at end of file
2. Code generation
3. Running pass 'Function Pass Manager' on module 'xray-account-min.cpp'.
4. Running pass 'X86 DAG->DAG Instruction Selection' on function
'@"_ZNK1c1fIZNKS_1dERK1aE3$_0EEvS3_T_"'
0 clang 0x00000000028bfce8
llvm::sys::PrintStackTrace(llvm::raw_ostream&) + 40
1 clang 0x00000000028bdbf8 llvm::sys::RunSignalHandlers() + 248
2 clang 0x00000000028c0578
llvm::sys::PrintStackTraceOnErrorSignal(llvm::StringRef, bool) + 1256
3 libthr.so.3 0x00000008044dc430 _pthread_sigmask + 1328
Abort trap
Before this change, the assertion was different, and corresponds to what
appears to have been fixed for bug 41414:
Assertion failed: ((!From->hasAnyUseOfValue(i) || From->getValueType(i) ==
To->getValueType(i)) && "Cannot use this version of ReplaceAllUsesWith!"),
function ReplaceAllUsesWith, file
/home/dim/src/llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAG.cpp, line 8144.
Stack dump:
0. Program arguments: /home/dim/ins/llvm-trunk-r359094/bin/clang -cc1
-triple i386-- -S -target-cpu haswell -O1 -vectorize-slp xray-account-min.cpp
1. <eof> parser at end of file
2. Code generation
3. Running pass 'Function Pass Manager' on module 'xray-account-min.cpp'.
4. Running pass 'X86 DAG->DAG Instruction Selection' on function
'@"_ZNK1c1fIZNKS_1dERK1aE3$_0EEvS3_T_"'
0 clang 0x00000000028bfbd8
llvm::sys::PrintStackTrace(llvm::raw_ostream&) + 40
1 clang 0x00000000028bdae8 llvm::sys::RunSignalHandlers() + 248
2 clang 0x00000000028c0468
llvm::sys::PrintStackTraceOnErrorSignal(llvm::StringRef, bool) + 1256
3 libthr.so.3 0x00000008044db430 _pthread_sigmask + 1328
Abort trap
Minimized test case:
// clang -cc1 -triple i386-- -S -target-cpu haswell -O1 -vectorize-slp
xray-account-min.cpp
struct a {
unsigned long long b;
};
struct c {
void d(const a &) const;
template <class e> void f(const a &, e) const;
double g;
double h;
double i;
double j;
} k;
template <class e> void c::f(const a &l, e) const {
auto &m = k;
m.g /= l.b;
m.h /= l.b;
m.i /= l.b;
m.j /= l.b;
}
void c::d(const a &l) const {
f(l, [] {});
}
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