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[Qemu-commits] [qemu/qemu] fa54ab: Drop QEMU_GNUC_PREREQ() checks for gc

From: GitHub
Subject: [Qemu-commits] [qemu/qemu] fa54ab: Drop QEMU_GNUC_PREREQ() checks for gcc older than ...
Date: Fri, 21 Apr 2017 02:05:44 -0700

  Branch: refs/heads/master
  Home:   https://github.com/qemu/qemu
  Commit: fa54abb8c298f892639ffc4bc2f61448ac3be4a1
  Author: Peter Maydell <address@hidden>
  Date:   2017-04-20 (Thu, 20 Apr 2017)

  Changed paths:
    M include/qemu/compiler.h
    M include/qemu/host-utils.h
    M tcg/arm/tcg-target.h

  Log Message:
  Drop QEMU_GNUC_PREREQ() checks for gcc older than 4.1

We already require gcc 4.1 or newer (for the atomic
support), so the fallback codepaths for older gcc
versions than that are now dead code and we can
just delete them.

NB: clang reports itself as gcc 4.2 (regardless of
clang version), so clang won't be using the fallbacks

Signed-off-by: Peter Maydell <address@hidden>
Reviewed-by: Markus Armbruster <address@hidden>

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