This patch makes the assembler support all modifiers defined in gnu-as.
Also changes some diagnostic information.
Differential Revision: https://reviews.llvm.org/D132633
This patch only add %pc_hi20/%pc_lo12/%plt relocations in order
to be able to generate gnu ld linkable relocation file for the
`hello world` IR :
```
@.str = private unnamed_addr constant [14 x i8] c"Hello world!\0A\00", align 1
define dso_local signext i32 @main() nounwind {
entry:
%call = call signext i32 (ptr, ...) @printf(ptr noundef @.str)
ret i32 0
}
declare dso_local signext i32 @printf(ptr noundef, ...)
```
This patch also updates some test cases due to new modifiers introduced.
New test: test/MC/LoongArch/Relocations/relocations.s
Differential Revision: https://reviews.llvm.org/D132108
These instructions are added by following the `LoongArch Reference
Manual Volume 1: Basic Architecture Version 1.00`.
Differential Revision: https://reviews.llvm.org/D124826
These instructions are added by following the `LoongArch Reference
Manual Volume 1: Basic Architecture Version 1.00`.
Differential Revision: https://reviews.llvm.org/D123988
With the addition of disassembler now we can do instructions 'round-trip' test
that assembles `.s` to obj with `llvm-mc` and disassembles it with `llvm-objdump`
to check instruction mnemonics.
Reviewed By: xen0n, MaskRay
Differential Revision: https://reviews.llvm.org/D120477
This patch adds basic support to AsmParser which can handle basic
instructions with register or immediate operands. With the addition of
the parser, now it's possible to test instructions encoding with `llvm-mc`.
Disassembler will be added later and then we can do `round-trip` test.
Reviewed By: xen0n, MaskRay, myhsu
Differential Revision: https://reviews.llvm.org/D120476
wanglei