avoid the JIT on MSAN builds
JIT code isn't MSAN-instrumented, so we won't see when it uses
uninitialized memory, and we'll not see the writes it makes as properly
initializing memory. Instead force the interpreter, which should let
MSAN see everything our programs do properly.
This refactors so that SkVM.cpp is the only code to look at whether
SKVM_JIT is defined, and undefines it when built with MSAN. Added
a simple regression test too.
Cq-Include-Trybots: skia.primary:Test-Debian9-Clang-GCE-CPU-AVX2-x86_64-Debug-All-MSAN
Change-Id: Ic7cca2621f84dfba7174127738744d6c68f85f2e
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/253410
Auto-Submit: Mike Klein <mtklein@google.com>
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Klein <mtklein@google.com>
2 files changed