Before:
    movl r10,0x1
    REX.W movq [rbp-0x40],r10

After:
    REX.W movq [rbp-0x40],0x1

Change-Id: Iebc77e14a947fd89f7ed4702cea703c15dcb6718
Reviewed-on: https://chromium-review.googlesource.com/1092159Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53598}