maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

[PGO] Allow overriding -vp-counters-per-site 

In some build configurations more than 1.5 might be required.
Paramaterize so it can be changed by the user.

Reviewed By: yamauchi

Differential Revision: https://reviews.llvm.org/D93281
This commit is contained in:
Raul Tambre 2020-12-15 08:41:22 +02:00
parent b0e5aea557
commit 95bfd0849f
1 changed files with 3 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
llvm/cmake/modules/HandleLLVMOptions.cmake
View File

@ -904,7 +904,8 @@ option(LLVM_ENABLE_IR_PGO "Build LLVM and tools with IR PGO instrumentation (dep
mark_as_advanced(LLVM_ENABLE_IR_PGO)
set(LLVM_BUILD_INSTRUMENTED OFF CACHE STRING "Build LLVM and tools with PGO instrumentation. May be specified as IR or Frontend")
mark_as_advanced(LLVM_BUILD_INSTRUMENTED)
set(LLVM_VP_COUNTERS_PER_SITE "1.5" CACHE STRING "Value profile counters to use per site for IR PGO with Clang")
mark_as_advanced(LLVM_BUILD_INSTRUMENTED LLVM_VP_COUNTERS_PER_SITE)
string(TOUPPER "${LLVM_BUILD_INSTRUMENTED}" uppercase_LLVM_BUILD_INSTRUMENTED)
if (LLVM_BUILD_INSTRUMENTED)
@ -922,7 +923,7 @@ if (LLVM_BUILD_INSTRUMENTED)
if (CMAKE_CXX_COMPILER_ID MATCHES "Clang" AND
CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 11 AND
LLVM_LINK_LLVM_DYLIB)
append("-Xclang -mllvm -Xclang -vp-counters-per-site=1.5"
append("-Xclang -mllvm -Xclang -vp-counters-per-site=${LLVM_VP_COUNTERS_PER_SITE}"
CMAKE_CXX_FLAGS
CMAKE_C_FLAGS)
endif()