https://sourceware.org/bugzilla/show_bug.cgi?id=33095
Bug ID: 33095
Summary: as fails to respect -march on riscv when it doesn't
include the compressed instructions extension
Product: binutils
Version: 2.44
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: gas
Assignee: unassigned at sourceware dot org
Reporter: genericnerdyusername at proton dot me
Target Milestone: ---
`as` can output binaries with instructions from the C extension, even when
disabled with `-march=rv32i`
Also seems to exist on 2.43.1. Haven't checked `riscv32-unknown-linux-gnu` or
64 bit variants.
I am using on nixos, linux 6.12.32, x86_64.
To reproduce:
save this as prog.S (I have a larger example, this was generated via creduce)
```
.ifnc(,
.option rvc
.align 5
.endif
```
then run
```
riscv32-none-elf-as -march=rv32i prog.S -o prog.elf
riscv32-none-elf-objdump -Mno-aliases -d prog.elf
```
and it should output a disassembly with two `c.addi` instructions
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