[all-commits] [llvm/llvm-project] 15edd7: [FPEnv] PowerPC-specific builtin constrained FP en...

[Andrew Wock via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 15edd7aaa7142e5db2a6cf9b81e4514967431824
      https://github.com/llvm/llvm-project/commit/15edd7aaa7142e5db2a6cf9b81e4514967431824
  Author: Andrew Wock <ajwock at gmail.com>
  Date:   2020-06-25 (Thu, 25 Jun 2020)

  Changed paths:
    M clang/lib/CodeGen/CGBuiltin.cpp
    A clang/test/CodeGen/builtins-ppc-fpconstrained.c

  Log Message:
  -----------
  [FPEnv] PowerPC-specific builtin constrained FP enablement

This change enables PowerPC compiler builtins to generate constrained
floating point operations when clang is indicated to do so.

A couple of possibly unexpected backend divergences between constrained
floating point and regular behavior are highlighted under the test tag
FIXME-CHECK. This may be something for those on the PPC backend to look
at.

Patch by: Drew Wock <drew.wock at sas.com>

Differential Revision: https://reviews.llvm.org/D82020