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$ clang -emit-llvm -S -c example/loop.c -o - | opt -O1 -o - | opt -load ./KernelDataFlow.so -KernelDataFlow -o /dev/null && dot -Tpdf graph.dot -o graph.pdf
Found 1 Kernels
; Function Attrs: nounwind uwtable
define void @f(i32* nocapture readonly %in, i32* nocapture %out, i32 %M, i32 %N) #0 {
entry:
%cmp9 = icmp sgt i32 %M, 0
br i1 %cmp9, label %for.cond1.preheader.lr.ph, label %for.end11
for.cond1.preheader.lr.ph: ; preds = %entry
%cmp27 = icmp sgt i32 %N, 0
br label %for.cond1.preheader
for.cond1.preheader: ; preds = %for.inc9, %for.cond1.preheader.lr.ph
%indvars.iv13 = phi i64 [ 0, %for.cond1.preheader.lr.ph ], [ %indvars.iv.next14, %for.inc9 ]
br i1 %cmp27, label %for.body3.lr.ph, label %for.inc9
for.body3.lr.ph: ; preds = %for.cond1.preheader
%arrayidx = getelementptr inbounds i32* %in, i64 %indvars.iv13
br label %for.body3
for.body3: ; preds = %for.body3, %for.body3.lr.ph
%indvars.iv = phi i64 [ 0, %for.body3.lr.ph ], [ %indvars.iv.next, %for.body3 ]
%0 = load i32* %arrayidx, align 4
%arrayidx5 = getelementptr inbounds i32* %in, i64 %indvars.iv
%1 = load i32* %arrayidx5, align 4
%add = add nsw i32 %1, %0
%2 = add nsw i64 %indvars.iv, %indvars.iv13
%arrayidx8 = getelementptr inbounds i32* %out, i64 %2
store i32 %add, i32* %arrayidx8, align 4
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
%lftr.wideiv = trunc i64 %indvars.iv.next to i32
%exitcond = icmp eq i32 %lftr.wideiv, %N
br i1 %exitcond, label %for.inc9, label %for.body3
for.inc9: ; preds = %for.body3, %for.cond1.preheader
%indvars.iv.next14 = add nuw nsw i64 %indvars.iv13, 1
%lftr.wideiv15 = trunc i64 %indvars.iv.next14 to i32
%exitcond16 = icmp eq i32 %lftr.wideiv15, %M
br i1 %exitcond16, label %for.end11, label %for.cond1.preheader
for.end11: ; preds = %for.inc9, %entry
ret void
}
BB processor attached.
Instruction not handled: %lftr.wideiv = trunc i64 %indvars.iv.next to i32
opt: /home/marcusmae/forge/KernelDataFlow/src/BlockProcessor/AnalyzeInstruction.cpp:244: vertexIterator BlockProcessor::analyzeInstruction(llvm::Instruction ): Assertion `0' failed.
0 opt 0x000000000152faa3 llvm::sys::PrintStackTrace(IO_FILE) + 38
1 opt 0x000000000152fd2a
2 opt 0x000000000152f76e
3 libpthread.so.0 0x00007f1f2698bcb0
4 libc.so.6 0x00007f1f259b6425 gsignal + 53
5 libc.so.6 0x00007f1f259b9b8b abort + 379
6 libc.so.6 0x00007f1f259af0ee
7 libc.so.6 0x00007f1f259af192
8 KernelDataFlow.so 0x00007f1f25766b00 BlockProcessor::analyzeInstruction(llvm::Instruction) + 4832
9 KernelDataFlow.so 0x00007f1f25765434 BlockProcessor::analyzeBB(llvm::BasicBlock_) + 100
10 KernelDataFlow.so 0x00007f1f2576d645 BlockProcessor::run() + 373
11 KernelDataFlow.so 0x00007f1f25761536 KernelDataFlow::runOnModule(llvm::Module&) + 358
12 opt 0x00000000014abc8b
13 opt 0x00000000014ac2a0 llvm::legacy::PassManagerImpl::run(llvm::Module&) + 254
14 opt 0x00000000014ac4b3 llvm::legacy::PassManager::run(llvm::Module&) + 39
15 opt 0x0000000000867b14 main + 5778
16 libc.so.6 0x00007f1f259a176d __libc_start_main + 237
17 opt 0x0000000000859799
Stack dump:
0. Program arguments: opt -load ./KernelDataFlow.so -KernelDataFlow -o /dev/null
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