Attention is currently required from: Patrick Rudolph, Angel Pons.

Arthur Heymans uploaded patch set #3 to the change originally created by Patrick Rudolph.

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arch/x86: x86_64 implies SSE2 support

Enable SSE2 (and SSE) when compiling for x86_64. Compilers often assume
SSE2 is present and enabled when targeting x86_64.

This fixes:
- lzma decompression code is compiled with the -Ofast flag
- 'everything' when compiling with clang.

This mostly affects qemu targets, which did not have this flag selected

TESTED on qemu.

Change-Id: I3cdc584c97016e15513df663a54a7bdb549a73e4
Signed-off-by: Patrick Rudolph <>
Signed-off-by: Arthur Heymans <>
M src/arch/x86/Kconfig
1 file changed, 28 insertions(+), 0 deletions(-)

git pull ssh:// refs/changes/69/44869/3

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Gerrit-Project: coreboot
Gerrit-Branch: master
Gerrit-Change-Id: I3cdc584c97016e15513df663a54a7bdb549a73e4
Gerrit-Change-Number: 44869
Gerrit-PatchSet: 3
Gerrit-Owner: Patrick Rudolph <>
Gerrit-Reviewer: Angel Pons <>
Gerrit-Reviewer: Arthur Heymans <>
Gerrit-Reviewer: build bot (Jenkins) <>
Gerrit-Attention: Patrick Rudolph <>
Gerrit-Attention: Angel Pons <>
Gerrit-MessageType: newpatchset