[all-commits] [llvm/llvm-project] d16b5c: [asan] Use proper shadow offset for loongarch64 in...

[Lu Weining via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: d16b5c350473f04aae4f39344242e140b0dfd79d
      https://github.com/llvm/llvm-project/commit/d16b5c350473f04aae4f39344242e140b0dfd79d
  Author: Youling Tang <tangyouling at loongson.cn>
  Date:   2022-11-03 (Thu, 03 Nov 2022)

  Changed paths:
    M llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp

  Log Message:
  -----------
  [asan] Use proper shadow offset for loongarch64 in instrumentation passes

Instrumentation passes now use the proper shadow offset. There will be many
asan test failures without this patch. For example:

```
$ ./lib/asan/tests/LOONGARCH64LinuxConfig/Asan-loongarch64-calls-Test
AddressSanitizer:DEADLYSIGNAL
=================================================================
==651209==ERROR: AddressSanitizer: SEGV on unknown address 0x1ffffe2dfa9b (pc 0x5555585e151c bp 0x7ffffb9ec070 sp 0x7ffffb9ebfd0 T0)
==651209==The signal is caused by a UNKNOWN memory access.
```

Before the patch:

```
$ make check-asan
Testing Time: 36.13s
  Unsupported      : 205
  Passed           :  83
  Expectedly Failed:   1
  Failed           : 239
```

After the patch:
```
$ make check-asan
Testing Time: 58.98s
  Unsupported      : 205
  Passed           : 421
  Expectedly Failed:   1
  Failed           :  89
```

Differential Revision: https://reviews.llvm.org/D137013