peixin added a comment.
When I investigated the edge cases you mentioned in D116292
<https://reviews.llvm.org/D116292>. Found one unsupported case as follows
#include <climits>
#include <iostream>
using namespace std;
void func(unsigned long long lb, unsigned long long ub, unsigned long long
step) {
unsigned long long i;
#pragma omp for schedule(static, 1)
for (i = lb; i > ub; i -= step) {
cout << i << endl;
}
}
int main() {
unsigned long long lb, ub, step;
lb = ULLONG_MAX;
ub = ULLONG_MAX / 10;
step = ULLONG_MAX / 10;
cout << "lb: " << lb << endl;
cout << "ub: " << ub << endl;
cout << "step: " << step << endl;
func(lb, ub, step);
cout << endl;
return 0;
}
$ clang++ temp.cpp -fopenmp && ./a.out
lb: 18446744073709551615
ub: 1844674407370955161
step: 1844674407370955161
18446744073709551615
16602069666338596454
14757395258967641293
12912720851596686132
11068046444225730971
9223372036854775810
7378697629483820649
5534023222112865488
3689348814741910327
1844674407370955166
$ clang++ temp.cpp -fopenmp -fopenmp-enable-irbuilder
clang-14:
/home/qpx/compilers/llvm-community/static-chunk-codegen/llvm-project/llvm/lib/IR/Instructions.cpp:506:
void llvm::CallInst::init(llvm::FunctionType*, llvm::Value*,
llvm::ArrayRef<llvm::Value*>,
llvm::ArrayRef<llvm::OperandBundleDefT<llvm::Value*> >, const llvm::Twine&):
Assertion `(i >= FTy->getNumParams() || FTy->getParamType(i) ==
Args[i]->getType()) && "Calling a function with a bad signature!"' failed.
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/
and include the crash backtrace, preprocessed source, and associated run script.
Stack dump:
This is also for `schedule(static)`.
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D114413/new/
https://reviews.llvm.org/D114413
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