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cc8987f5b5
If the pointer was loaded/stored before the null check, the check is redundant and can be removed. For now the optimizers do not remove the nullptr check, see https://gcc.godbolt.org/z/H2r5GG. The patch allows to use more nonnull constraints. Also, it found one more optimization in some PowerPC test. This is my first llvm review, I am free to any comments. Differential Revision: https://reviews.llvm.org/D71177 |
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| .. | ||
| aarch64.irg.ll | ||
| assume.ll | ||
| deref-bitcast-of-gep.ll | ||
| dereferenceable-and-aligned.ll | ||
| func-ptr-lsb.ll | ||
| gep-negative-issue.ll | ||
| get-pointer-base-with-const-off.ll | ||
| invariant.group.ll | ||
| known-bits-from-range-md.ll | ||
| known-non-equal.ll | ||
| known-nonnull-at.ll | ||
| known-power-of-two.ll | ||
| known-signbit-shift.ll | ||
| knownnonzero-shift.ll | ||
| knownzero-addrspacecast.ll | ||
| knownzero-shift.ll | ||
| memory-dereferenceable.ll | ||
| monotonic-phi.ll | ||
| non-negative-phi-bits.ll | ||
| numsignbits-from-assume.ll | ||
| pr23011.ll | ||
| select-pattern.ll | ||
| signbits-extract-elt.ll | ||