diff options
| author | Yonghong Song <yhs@fb.com> | 2018-02-23 23:49:31 +0000 |
|---|---|---|
| committer | Yonghong Song <yhs@fb.com> | 2018-02-23 23:49:31 +0000 |
| commit | ae961bb06127330c6ee04c1c584271f66829d74e (patch) | |
| tree | 1764d13c43b870bb9c756b83d3806467cc7e1caf /clang/lib/Lex/ModuleMap.cpp | |
| parent | ca31c3bb3ff149850b664838fbbc7d40ce571879 (diff) | |
| download | llvm-ae961bb06127330c6ee04c1c584271f66829d74e.zip llvm-ae961bb06127330c6ee04c1c584271f66829d74e.tar.gz llvm-ae961bb06127330c6ee04c1c584271f66829d74e.tar.bz2 | |
bpf: New decoder namespace for 32-bit subregister load/store
When -mattr=+alu32 passed to the disassembler, use decoder namespace for
32-bit subregister.
This is to disassemble load and store instructions in preferred B format
as described in previous commit:
w = *(u8 *) (r + off) // BPF_LDX | BPF_B
w = *(u16 *)(r + off) // BPF_LDX | BPF_H
w = *(u32 *)(r + off) // BPF_LDX | BPF_W
*(u8 *) (r + off) = w // BPF_STX | BPF_B
*(u16 *)(r + off) = w // BPF_STX | BPF_H
*(u32 *)(r + off) = w // BPF_STX | BPF_W
NOTE: all other instructions should still use the default decoder
namespace.
Signed-off-by: Jiong Wang <jiong.wang@netronome.com>
Reviewed-by: Yonghong Song <yhs@fb.com>
llvm-svn: 325990
Diffstat (limited to 'clang/lib/Lex/ModuleMap.cpp')
0 files changed, 0 insertions, 0 deletions