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35ae52256a
Summary: When constant folding, constants that are wrapped in metadata were not folded. This could lead to dbg.values being the only user of a constant expression, due to the non-dbg uses having been rewritten, resulting in the constant later on being removed by some other pass. This occurred with the attached test case, in which the non-rewritten GEP in the dbg.value intrinsic was later on removed by globalopt. This patch makes the code look through metadata and fold such constants. I guess that we in the future may want to allow dbg.values using GEPs and other constant expressions to be emittable even if there are no non-dbg uses, but for example SelectionDAG does not support that. Reviewers: jmorse, aprantl, vsk, davide Reviewed By: aprantl, vsk, davide Subscribers: hiraditya, llvm-commits Tags: #debug-info, #llvm Differential Revision: https://reviews.llvm.org/D73630 |
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| AggressiveInstCombine | ||
| CFGuard | ||
| Coroutines | ||
| Hello | ||
| InstCombine | ||
| Instrumentation | ||
| IPO | ||
| ObjCARC | ||
| Scalar | ||
| Utils | ||
| Vectorize | ||
| CMakeLists.txt | ||
| LLVMBuild.txt | ||