forked from OSchip/llvm-project
45e7944bcf
SCEVExpander, which we are using during code generation, only allows instructions as insert locations, but breaks in case BasicBlock->end() iterators are passed to it due to it trying to obtain the basic block in which code should be generated by calling Instruction->getParent(), which is not defined for ->end() iterators. This change adds an assert to Polly that ensures we only pass valid instructions to SCEVExpander and it fixes one case, where we used IRBuilder->SetInsertBlock() to set an ->end() insert location which was later passed to SCEVExpander. In general, Polly is always trying to build up the CFG first, before we actually insert instructions into the CFG sceleton. As a result, each basic block should already have at least one branch instruction before we start adding code. Hence, always requiring the IRBuilder insert location to be set to a real instruction should always be possible. Thanks Utpal Bora <cs14mtech11017@iith.ac.in> for his help with test case reduction. llvm-svn: 243830 |
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| clang | ||
| clang-tools-extra | ||
| compiler-rt | ||
| debuginfo-tests | ||
| libclc | ||
| libcxx | ||
| libcxxabi | ||
| libunwind | ||
| lld | ||
| lldb | ||
| llgo | ||
| llvm | ||
| openmp | ||
| polly | ||