[PATCH] D44521: [InstSimplify] fp_binop X, NaN --> NaN

[Nicolai Hähnle via Phabricator via llvm-commits]

nhaehnle added a comment.

In https://reviews.llvm.org/D44521#1041180, @spatel wrote:

> Do you mean bitcast back and forth? Example:


Yes, except I don't see how end up with `-1.0` as inline constant in the v_add. Here's what I get, which looks more correct:

  s_load_dwordx2 s[4:5], s[0:1], 0x24
  s_load_dword s0, s[0:1], 0x2c
  s_mov_b32 s7, 0xf000
  s_mov_b32 s6, -1
  s_waitcnt lgkmcnt(0)
  s_add_i32 s0, s0, -1
  v_mov_b32_e32 v0, s0
  buffer_store_dword v0, off, s[4:7], 0
  s_endpgm


https://reviews.llvm.org/D44521