https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91130
Bug ID: 91130
Summary: [9/10 Regression] -MF clashes with -flto on aarch64
Product: gcc
Version: 10.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: marxin at gcc dot gnu.org
Target Milestone: ---
Starting from GCC 9.1.0 I see following problem:
$ gcc --version
gcc (SUSE Linux) 9.1.1 20190611 [gcc-9-branch revision 272147]
$ echo "int main() {}" > main.c && gcc -c -flto main.c && gcc -o a.out main.o
-flto -MMD -MF deps/a.d -MP
gcc: error: deps/a.d: No such file or directory
lto-wrapper: fatal error: gcc returned 1 exit status
compilation terminated.
/usr/lib64/gcc/aarch64-suse-linux/9/../../../../aarch64-suse-linux/bin/ld:
error: lto-wrapper failed
collect2: error: ld returned 1 exit status
$ echo "int main() {}" > main.c && gcc-8 -c -flto main.c && gcc-8 -o a.out
main.o -flto -MMD -MF deps/a.d -MP && echo OK
OK
