I think the diff between those two gcc revisions is 33838 files changed, 4163362 insertions(+), 3256529 deletions(-)
Assuming 160a6c31074afde0bfc835591a95653c5e65cc45 commit for gcc that makes bootable kernel, and 8fc1a49c9312b05d925b7d21f1d2145d70818151 commit for gcc that makes failing-to-boot kernel.
I think the diff between those two gcc revisions is 33838 files changed, 4163362 insertions(+), 3256529 deletions(-)
Assuming 160a6c31074afde 0bfc835591a9565 3c5e65cc45 commit for gcc that makes bootable kernel, and 8fc1a49c9312b05 d925b7d21f1d214 5d70818151 commit for gcc that makes failing-to-boot kernel.