What's wrong with the compiler Rust already has
this post was submitted on 28 Jul 2022
1 points (100.0% liked)
Rust Programming
8159 readers
5 users here now
founded 5 years ago
MODERATORS
LLVM supports fewer target machines than GCC
https://gcc.gnu.org/backends.html has a big table
| Characteristics
Target | HMSLQNFICBD lqrpbfmgiates
-----------+--------------------------
aarch64 | Q q b gia s
alpha | ? Q C q mgi e
arc | B b gia
arm | b ia s
avr | L FI l p g
bfin | F gi
c6x | S CB gi
cr16 | L F C g s
cris | F B gi s
csky | b ia
epiphany | C gi s
fr30 | ?? FI B pb mg s
frv | ?? B b i s
gcn | S C D q a e
h8300 | FI B g s
i386 | Q q b ia
ia64 | ? Q C qr b m i
iq2000 | ??? FICB b g t
lm32 | F g
m32c | L FI l b g s
m32r | FI b s
m68k | pb i
mcore | ? FI pb mg s
mep | F C b g t s
microblaze | CB i s
mips | Q CB qr ia s
mmix | HM Q C q i e
mn10300 | ?? gi s
moxie | F g t s
msp430 | L FI l b g s
nds32 | F C ia s
nios2 | C ia
nvptx | S Q C q mg e
pa | Q CBD qr b i e
pdp11 | L IC qr b e
pru | L F a s
riscv | Q C qr gia
rl78 | L F l g s
rs6000 | Q C qrpb ia
rx | s
s390 | Q qr gia e
sh | Q CB qrp i
sparc | Q CB qr b ia
stormy16 | ???L FIC D l b i
tilegx | Q C q gi e
tilepro | S F C gi e
v850 | g a s
vax | M I b i e
visium | B g t s
xtensa | C
https://www.llvm.org/Features.html
An easily retargettable code generator, which currently supports X86, X86-64, PowerPC, PowerPC-64, ARM, Thumb, SPARC, Alpha, CellSPU, MIPS, MSP430, SystemZ, WebAssembly and XCore.
It's also good to have multiple compilers to exercise the spec.
I feel like Hank Hill needs to step in and say "You're not making a good compiler, you're just making Rust bad."