Revert "MdePkg: avoid __builtin_unreachable() on GCC v4.4"

This reverts commit 357cec385d ("MdePkg: avoid __builtin_unreachable()
on GCC v4.4", 2016-07-21).

We've removed BaseTools support for GCC44..GCC47, therefore we need not
catch the GCC44 corner case for __builtin_unreachable().

No GCC44..GCC47 references remain under MdePkg after this patch.

Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Marvin Haeuser <Marvin.Haeuser@outlook.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=1377
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Marvin Haeuser <Marvin.Haeuser@outlook.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
This commit is contained in:
Laszlo Ersek 2019-01-02 21:38:22 +01:00
parent 300b8c5f15
commit 7423ba9d49
1 changed files with 1 additions and 2 deletions

View File

@ -112,11 +112,10 @@ VERIFY_SIZE_OF (__VERIFY_UINT32_ENUM_SIZE, 4);
// warnings.
//
#ifndef UNREACHABLE
#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ > 4)
#ifdef __GNUC__
///
/// Signal compilers and analyzers that this call is not reachable. It is
/// up to the compiler to remove any code past that point.
/// Not implemented by GCC 4.4 or earlier.
///
#define UNREACHABLE() __builtin_unreachable ()
#elif defined (__has_feature)