[PATCH] D146835: [RISCV] Enable usubo formation in CodeGenPrepare.

[Liao Chunyu via Phabricator via llvm-commits]

liaolucy added inline comments.


================
Comment at: llvm/test/CodeGen/RISCV/overflow-intrinsics.ll:781
+; RV32-NEXT:    sub a2, a0, a2
+; RV32-NEXT:    beq a3, a1, .LBB22_2
 ; RV32-NEXT:  # %bb.1:
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This regression cannot to be solved by adding a special case.

It seems we can modify ExpandIntRes_UADDSUBO by referring to ExpandIntRes_ADDSUB, I'm not sure.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D146835/new/

https://reviews.llvm.org/D146835