[all-commits] [llvm/llvm-project] 213735: [TTI] Check type legalization of both src and resu...

[Elvis Wang via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 213735487ea0c682a3e8c3d5a78a034e50fd5a0a
      https://github.com/llvm/llvm-project/commit/213735487ea0c682a3e8c3d5a78a034e50fd5a0a
  Author: Elvis Wang <elvis.wang at sifive.com>
  Date:   2025-07-10 (Thu, 10 Jul 2025)

  Changed paths:
    M llvm/include/llvm/CodeGen/BasicTTIImpl.h
    A llvm/test/Analysis/CostModel/RISCV/cast-sat.ll

  Log Message:
  -----------
  [TTI] Check type legalization of both src and result for fpto{u|s}i.sat. (#147657)

For the cast instructions such ass `fptoui.sat`, `fptosi.sat`, need to
check
both type of the source and the result type can be lowering legally. If
one of them is invalid, return invalid cost.

--
Fixes https://github.com/llvm/llvm-project/issues/142973.

---------

Co-authored-by: Craig Topper <craig.topper at sifive.com>



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