[all-commits] [llvm/llvm-project] c1d011: [PowerPC] Materialize floats in the range [-16.0, ...

[stefanp-ibm via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: c1d0118459c814824b8a4c8f423b6b91d16af785
      https://github.com/llvm/llvm-project/commit/c1d0118459c814824b8a4c8f423b6b91d16af785
  Author: Stefan Pintilie <stefanp at ca.ibm.com>
  Date:   2023-01-04 (Wed, 04 Jan 2023)

  Changed paths:
    M llvm/lib/Target/PowerPC/PPCISelLowering.cpp
    M llvm/lib/Target/PowerPC/PPCInstrInfo.td
    M llvm/lib/Target/PowerPC/PPCInstrVSX.td
    M llvm/lib/Target/PowerPC/PPCRegisterInfo.td
    M llvm/test/CodeGen/PowerPC/aix32-vector-vararg-caller-split.ll
    M llvm/test/CodeGen/PowerPC/elf64-byval-cc.ll
    M llvm/test/CodeGen/PowerPC/fma-combine.ll
    M llvm/test/CodeGen/PowerPC/fma-mutate.ll
    M llvm/test/CodeGen/PowerPC/fmf-propagation.ll
    M llvm/test/CodeGen/PowerPC/handle-f16-storage-type.ll
    M llvm/test/CodeGen/PowerPC/non-debug-mi-search-frspxsrsp.ll
    M llvm/test/CodeGen/PowerPC/pow-025-075-intrinsic-scalar-mass-fast.ll
    M llvm/test/CodeGen/PowerPC/recipest.ll
    M llvm/test/CodeGen/PowerPC/scalar_cmp.ll
    M llvm/test/CodeGen/PowerPC/select_const.ll
    M llvm/test/CodeGen/PowerPC/toc-float.ll
    M llvm/test/CodeGen/PowerPC/vec_extract_p9.ll

  Log Message:
  -----------
  [PowerPC] Materialize floats in the range [-16.0, 15.0].

Previous to this patch we only materialized 0.0 and all other floating point
values would be loaded from the TOC. This patch adds materialization for the
floating point values that can be represented as integers in [-16.0, 15.0].

For example we will now materialize 3.0 and -5.0 but not 4.7.

Reviewed By: nemanjai, lei, #powerpc

Differential Revision: https://reviews.llvm.org/D138844