| Issue |
151330
|
| Summary |
llvm-objdump does not print arguments to sdot
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
alexreinking
|
This issue was discovered in LLVM 20.1.8, obtained via Homebrew.
Here's a terminal interaction showing the issue:
```console
% echo "test: sdot v19.4s, v6.16b, v18.16b" > test.S
% /opt/homebrew/opt/llvm@20/bin/clang -c test.S -o test.o -march=armv8.6-a
% /opt/homebrew/opt/llvm@20/bin/llvm-objdump -d test.o
test.o: file format mach-o arm64
Disassembly of section __TEXT,__text:
0000000000000000 <test>:
0: 4e9294d3 sdot
```
Clearly the arguments to `sdot` have been dropped. Strangely, other sets of arguments _do_ appear, albeit with the optional size markers removed:
```
% echo "test: sdot v0.4s, v1.16b, v2.4b[0]" > test.S
% /opt/homebrew/opt/llvm@20/bin/clang -c test.S -o test.o -march=armv8.6-a
% /opt/homebrew/opt/llvm@20/bin/llvm-objdump -d test.o
test.o: file format mach-o arm64
Disassembly of section __TEXT,__text:
0000000000000000 <test>:
0: 4f82e020 sdot v0, v1, v2[0]
```
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