[PATCH] D47927: [TargetLowering] Simplify expansion of S{ADD,SUB}O

[Roger Ferrer Ibanez via Phabricator via llvm-commits]

rogfer01 updated this revision to Diff 214310.
rogfer01 retitled this revision from "[WIP][TargetLowering] Simplify expansion of S{ADD,SUB}O" to "[TargetLowering] Simplify expansion of S{ADD,SUB}O".
rogfer01 added a comment.

ChangeLog:

- Combine if-else logic.
- Adjust subtraction comment to `is (non-zero) positive` to avoid ambiguity.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D47927/new/

https://reviews.llvm.org/D47927

Files:
  llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
  llvm/test/CodeGen/AArch64/sadd_sat.ll
  llvm/test/CodeGen/AArch64/sadd_sat_vec.ll
  llvm/test/CodeGen/AArch64/ssub_sat.ll
  llvm/test/CodeGen/AArch64/ssub_sat_vec.ll
  llvm/test/CodeGen/AMDGPU/saddo.ll
  llvm/test/CodeGen/ARM/addsubo-legalization.ll
  llvm/test/CodeGen/RISCV/arith-with-overflow.ll
  llvm/test/CodeGen/X86/combine-mulo.ll
  llvm/test/CodeGen/X86/mulo-pow2.ll
  llvm/test/CodeGen/X86/sadd_sat.ll
  llvm/test/CodeGen/X86/sadd_sat_vec.ll
  llvm/test/CodeGen/X86/ssub_sat.ll
  llvm/test/CodeGen/X86/ssub_sat_vec.ll
  llvm/test/CodeGen/X86/vec_saddo.ll
  llvm/test/CodeGen/X86/vec_ssubo.ll

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