[all-commits] [llvm/llvm-project] 4b1532: [MC] Eagerly skip zero-sized .fill fragments

[Benjamin Kramer via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 4b1532a46f66eb71bf80458fa67b86c618803b95
      https://github.com/llvm/llvm-project/commit/4b1532a46f66eb71bf80458fa67b86c618803b95
  Author: Benjamin Kramer <benny.kra at googlemail.com>
  Date:   2023-04-25 (Tue, 25 Apr 2023)

  Changed paths:
    M llvm/lib/MC/MCStreamer.cpp

  Log Message:
  -----------
  [MC] Eagerly skip zero-sized .fill fragments

This doesn't change the output in any way, but we have a bunch of
emitFill for padding. When emitting an array of floats we'd end up with

DataFragment float1
FillFragment 0
DataFragment float2
FillFragment 0
... and so on

We never actually emit anything for those fills, neither in asm nor obj
emission mode, they just consume RAM for no reason.