forked from OSchip/llvm-project
e71b81cab0
The first attempt was reverted because a clang test changed unexpectedly - the file is already marked with a FIXME, so I just updated it this time to pass. Original commit message: This is the main patch for converting a truncated scalar that is inserted into a vector to bitcast+shuffle. We could go either way on patterns like this, but this direction will allow collapsing a pair of these sequences on the motivating example from issue The patch is split into 3 parts to make it easier to see the progression of tests diffs. We allow inserting/shuffling into a different size vector for flexibility, so there are several test variations. The length-changing is handled by shortening/padding the shuffle mask with undef elements. In part 1, handle the basic pattern: inselt undef, (trunc T), IndexC --> shuffle (bitcast T), IdentityMask Proof for the endian-dependency behaving as expected: https://alive2.llvm.org/ce/z/BsA7yC The TODO items for handling shifts and insert into an arbitrary base vector value are implemented as follow-ups. Differential Revision: https://reviews.llvm.org/D138872 |
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| .. | ||
| SROA-after-final-loop-unrolling-2.ll | ||
| SROA-after-final-loop-unrolling.ll | ||
| SROA-after-loop-unrolling.ll | ||
| addsub-inseltpoison.ll | ||
| addsub.ll | ||
| ctlz-loop.ll | ||
| earlycse-after-simplifycfg-two-entry-phi-node-folding.ll | ||
| excessive-unrolling.ll | ||
| hoist-load-of-baseptr.ll | ||
| horiz-math-inseltpoison.ll | ||
| horiz-math.ll | ||
| lit.local.cfg | ||
| loadcombine.ll | ||
| loop-idiom-vs-indvars.ll | ||
| masked-memory-ops.ll | ||
| merge-functions.ll | ||
| nancvt.ll | ||
| peel-before-lv-to-enable-vectorization.ll | ||
| pixel-splat.ll | ||
| pr38280.ll | ||
| pr48844-br-to-switch-vectorization.ll | ||
| pr50555.ll | ||
| pr52078.ll | ||
| pr52253.ll | ||
| pr52289.ll | ||
| scalarization-inseltpoison.ll | ||
| scalarization.ll | ||
| shuffle-inseltpoison.ll | ||
| shuffle.ll | ||
| simplifycfg-late.ll | ||
| speculation-vs-tbaa.ll | ||
| spurious-peeling.ll | ||
| store-constant-merge.ll | ||
| unsigned-multiply-overflow-check.ll | ||
| vdiv-nounroll.ll | ||
| vdiv.ll | ||
| vec-load-combine.ll | ||
| vec-shift.ll | ||
| vector-math.ll | ||
| vector-reduction-known-first-value.ll | ||
| vector-reductions-expanded.ll | ||
| vector-reductions-logical.ll | ||
| vector-reductions.ll | ||