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| author | Yonghong Song <yhs@fb.com> | 2017-11-16 19:15:36 +0000 |
|---|---|---|
| committer | Yonghong Song <yhs@fb.com> | 2017-11-16 19:15:36 +0000 |
| commit | ce96738dee560a9a3ad08301860d1483df3356d4 (patch) | |
| tree | b6f467eeb92a8d43b61221e6c2fcc053d5634556 /clang/unittests/Basic/VirtualFileSystemTest.cpp | |
| parent | 1eaf300faced614c63cb2ff5c683fffdd3a2935b (diff) | |
| download | llvm-ce96738dee560a9a3ad08301860d1483df3356d4.zip llvm-ce96738dee560a9a3ad08301860d1483df3356d4.tar.gz llvm-ce96738dee560a9a3ad08301860d1483df3356d4.tar.bz2 | |
bpf: print backward branch target properly
Currently, it prints the backward branch offset as unsigned value
like below:
7: 7d 34 0b 00 00 00 00 00 if r4 s>= r3 goto 11 <LBB0_3>
8: b7 00 00 00 00 00 00 00 r0 = 0
LBB0_2:
9: 07 00 00 00 01 00 00 00 r0 += 1
......
17: bf 31 00 00 00 00 00 00 r1 = r3
18: 6d 32 f6 ff 00 00 00 00 if r2 s> r3 goto 65526 <LBB0_3+0x7FFB0>
The correct print insn 18 should be:
18: 6d 32 f6 ff 00 00 00 00 if r2 s> r3 goto -10 <LBB0_2>
To provide better clarity and be consistent with kernel verifier output,
the insn 7 output is changed to the following with "+" added to
non-negative branch offset:
7: 7d 34 0b 00 00 00 00 00 if r4 s>= r3 goto +11 <LBB0_3>
Signed-off-by: Yonghong Song <yhs@fb.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
llvm-svn: 318442
Diffstat (limited to 'clang/unittests/Basic/VirtualFileSystemTest.cpp')
0 files changed, 0 insertions, 0 deletions