[PATCH] D159172: [HWASAN] Inline fast pass of instrumentMemAccessOutline

[Vitaly Buka via Phabricator via llvm-commits]

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Usually pointer tag will match tag in the shadow, so we can keep
inlining this check keeping the rest in outlined part.

It imroves performance by about 25%, but increases code size by 30%.
Existing outlining reduces performance by 30%, but saves code size by 80%.
So we still significantly reduce code size with minimal performance loss.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D159172

Files:
  llvm/lib/Transforms/Instrumentation/HWAddressSanitizer.cpp
  llvm/test/Instrumentation/HWAddressSanitizer/RISCV/atomic.ll
  llvm/test/Instrumentation/HWAddressSanitizer/RISCV/basic.ll
  llvm/test/Instrumentation/HWAddressSanitizer/RISCV/exception-lifetime.ll
  llvm/test/Instrumentation/HWAddressSanitizer/RISCV/use-after-scope-setjmp.ll
  llvm/test/Instrumentation/HWAddressSanitizer/basic.ll

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