https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85925
--- Comment #10 from Segher Boessenkool <segher at gcc dot gnu.org> --- I get this: alpha 100.905% arm 100.072% c6x 100.000% csky 100.063% h8300 100.000% i386 100.000% microblaze 100.001% mips 100.052% mips64 100.043% nios2 100.000% parisc 100.049% parisc64 100.031% powerpc64 99.952% riscv64 100.049% s390 100.000% sh 100.006% shnommu 100.002% sparc 100.003% sparc64 100.007% x86_64 100.000% (the other 9 did not build, sigh. And this is code size). The alpha one looks really bad. Only the powerpc64 is a win.