forked from OSchip/llvm-project
4348cd42c3
This patch fixes PR52111. The problem is that LV propagates poison-generating flags (`nuw`/`nsw`, `exact` and `inbounds`) in instructions that contribute to the address computation of widen loads/stores that are guarded by a condition. It may happen that when the code is vectorized and the control flow within the loop is linearized, these flags may lead to generating a poison value that is effectively used as the base address of the widen load/store. The fix drops all the integer poison-generating flags from instructions that contribute to the address computation of a widen load/store whose original instruction was in a basic block that needed predication and is not predicated after vectorization. Reviewed By: fhahn, spatel, nlopes Differential Revision: https://reviews.llvm.org/D111846 |
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| .. | ||
| AArch64 | ||
| ARM | ||
| X86 | ||
| 2010-03-22-empty-baseclass.ll | ||
| PR6627.ll | ||
| assume-explosion.ll | ||
| basic.ll | ||
| bitfield-bittests.ll | ||
| d83507-knowledge-retention-bug.ll | ||
| deletion-of-loops-that-became-side-effect-free.ll | ||
| expect.ll | ||
| gdce.ll | ||
| globalaa-retained.ll | ||
| inlining-alignment-assumptions.ll | ||
| instcombine-sroa-inttoptr.ll | ||
| lifetime-sanitizer.ll | ||
| loop-rotation-vs-common-code-hoisting.ll | ||
| lto-licm.ll | ||
| min-max-abs-cse.ll | ||
| minmax.ll | ||
| openmp-opt-module.ll | ||
| partialord-ule.ll | ||
| pr32544.ll | ||
| pr36760.ll | ||
| pr39116.ll | ||
| pr39282.ll | ||
| pr40750.ll | ||
| pr44461-br-to-switch-rotate.ll | ||
| pr45682.ll | ||
| pr45687.ll | ||
| reassociate-after-unroll.ll | ||
| reassociate-instcombine.ll | ||
| rotate.ll | ||
| scev-custom-dl.ll | ||
| scev.ll | ||
| simplifycfg-options.ll | ||
| two-shifts-by-sext.ll | ||
| unsigned-multiply-overflow-check.ll | ||
| vector-trunc-inseltpoison.ll | ||
| vector-trunc.ll | ||