[PATCH] D78991: [TargetLibraryInfo] memcpy and memset have optimized codegen.

[Clement Courbet via Phabricator via llvm-commits]

courbet created this revision.
Herald added a project: LLVM.

Add memcpy and memset to the list of function with optimized codegen.
hasOptimizedCodeGen() was returning false for them.
This was not an issue when working with c++ as clang typically emits an
intrinsic rather than a libfunc call, but when working with IR,
this would cause some issues with sanitizers which would not correctly
mark the function as nobuiltin in `maybeMarkSanitizerLibraryCallNoBuiltin()`.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D78991

Files:
  llvm/include/llvm/Analysis/TargetLibraryInfo.h


Index: llvm/include/llvm/Analysis/TargetLibraryInfo.h
===================================================================
--- llvm/include/llvm/Analysis/TargetLibraryInfo.h
+++ llvm/include/llvm/Analysis/TargetLibraryInfo.h
@@ -350,6 +350,7 @@
     case LibFunc_trunc:        case LibFunc_truncf:     case LibFunc_truncl:
     case LibFunc_log2:         case LibFunc_log2f:      case LibFunc_log2l:
     case LibFunc_exp2:         case LibFunc_exp2f:      case LibFunc_exp2l:
+    case LibFunc_memcpy:       case LibFunc_memset:
     case LibFunc_memcmp:       case LibFunc_bcmp:       case LibFunc_strcmp:
     case LibFunc_strcpy:       case LibFunc_stpcpy:     case LibFunc_strlen:
     case LibFunc_strnlen:      case LibFunc_memchr:     case LibFunc_mempcpy:


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