[Lldb-commits] [libcxx] [flang] [compiler-rt] [libc] [clang-tools-extra] [llvm] [clang] [libcxxabi] [lld] [lldb] [mlir] [Mips] Fix unable to handle inline assembly ends with compat-branch o… (PR #77291)

[via lldb-commits]

yingopq wrote:

> What assembly does GCC emit, and how does GNU as deal with that assembly? 
> That is, how do those two tools interact in the GNU world when dealing with 
> forbidden slots?

All results were same: add nop after beqzc.
```
$ cat a.s
        .set reorder
bbb:
        beqzc $t1, bbb
        b bbb
$ sudo mipsel-linux-gnu-as -mips32r6 a.s
$ mipsel-linux-gnu-objdump -d a.out

a.out:     file format elf32-tradlittlemips


Disassembly of section .text:

00000000 <bbb>:
   0:   d93fffff        beqzc   t1,0 <bbb>
   4:   00000000        nop
   8:   1000ffff        b       8 <bbb+0x8>
   c:   00000000        nop
```

and
```
$ sudo mipsel-linux-gnu-gcc -mips32r6 -c a.s -o hello.o
$ mipsel-linux-gnu-objdump -d hello.o 

hello.o:     file format elf32-tradlittlemips


Disassembly of section .text:

00000000 <bbb>:
   0:   d93fffff        beqzc   t1,0 <bbb>
   4:   00000000        nop
   8:   1000ffff        b       8 <bbb+0x8>
   c:   00000000        nop
```

https://github.com/llvm/llvm-project/pull/77291
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