[Bug target/82005] [8 regression] early lto debug creates invalid assembly on Darwin

[dominiq at lps dot ens.fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82005

--- Comment #7 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
With the patch in comment 6, compiling the test in comment 0 with -g -flto
gives

while processing
/var/folders/8q/sh_swgz96r7f5vnn08f7fxr00000gn/T//ccqniUp8.ltrans0.ltrans.o:
warning: could not find referenced DIE
while processing
/var/folders/8q/sh_swgz96r7f5vnn08f7fxr00000gn/T//ccqniUp8.ltrans0.ltrans.o:
warning: could not find referenced DIE
while processing
/var/folders/8q/sh_swgz96r7f5vnn08f7fxr00000gn/T//ccqniUp8.ltrans0.ltrans.o:
warning: could not find referenced DIE
while processing
/var/folders/8q/sh_swgz96r7f5vnn08f7fxr00000gn/T//ccqniUp8.ltrans0.ltrans.o:
warning: could not find referenced DIE