[Bug target/102952] New code-gen options for retpolines and straight line speculation

[peterz at infradead dot org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102952

--- Comment #9 from peterz at infradead dot org ---
Created attachment 51683
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=51683&action=edit
kernel patch to test -mharden-sls=all

$ make O=defconfig CC=gcc-12.0.0 arch/x86/entry/common.o
...
arch/x86/entry/common.o: warning: objtool: do_SYSENTER_32()+0x1b: unreachable
instruction