[PATCH] D26736: [X86][AVX512] Autoupgrade lossless i32/u32 to f64 conversion intrinsics with generic IR

[Simon Pilgrim via llvm-commits]

RKSimon created this revision.
RKSimon added reviewers: igorb, delena, craig.topper.
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RKSimon set the repository for this revision to rL LLVM.

Both the (V)CVTDQ2PD (i32 to f64) and (V)CVTUDQ2PD (u32 to f64) conversion instructions are lossless and can be safely represented as generic SINT_TO_FP/UINT_TO_FP calls instead of x86 intrinsics without affecting final codegen.

LLVM counterpart to https://reviews.llvm.org/D26686


Repository:
  rL LLVM

https://reviews.llvm.org/D26736

Files:
  include/llvm/IR/IntrinsicsX86.td
  lib/IR/AutoUpgrade.cpp
  lib/Target/X86/X86IntrinsicsInfo.h
  test/CodeGen/X86/avx512-intrinsics-upgrade.ll
  test/CodeGen/X86/avx512-intrinsics.ll
  test/CodeGen/X86/avx512vl-intrinsics-upgrade.ll
  test/CodeGen/X86/avx512vl-intrinsics.ll

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