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[BOLT][PR] Target compilation based on LLVM CMake configuration

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Summary:

Minimalist implementation of target configurable compilation.

Fixes https://github.com/facebookincubator/BOLT/issues/59
Pull Request resolved: https://github.com/facebookincubator/BOLT/pull/60
GitHub Author: Pierre RAMOIN <pierre.ramoin@amadeus.com>

(cherry picked from FBD16461879)
This commit is contained in:
Facebook Github Bot
2019-07-24 11:05:08 -07:00
committed by Maksim Panchenko
parent 2c9c6b164b
commit 86800abc81
2 changed files with 30 additions and 9 deletions
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22
bolt/src/CMakeLists.txt
View File

@@ -48,8 +48,6 @@ add_public_gen_version_target(GenBoltRevision)
set(LLVM_LINK_COMPONENTS
${LLVM_TARGETS_TO_BUILD}
BOLTPasses
BOLTTargetAArch64
BOLTTargetX86
CodeGen
Core
DebugInfoDWARF
@@ -61,6 +59,18 @@ set(LLVM_LINK_COMPONENTS
Support
)
string(FIND "${LLVM_TARGETS_TO_BUILD}" "AArch64" POSITION)
if (NOT ${POSITION} EQUAL -1)
list(APPEND LLVM_LINK_COMPONENTS BOLTTargetAArch64)
set(BOLT_AArcb64 On)
endif()
string(FIND "${LLVM_TARGETS_TO_BUILD}" "X86" POSITION)
if (NOT ${POSITION} EQUAL -1)
list(APPEND LLVM_LINK_COMPONENTS BOLTTargetX86)
set(BOLT_X64 On)
endif()
add_llvm_tool(llvm-bolt
llvm-bolt.cpp
BinaryBasicBlock.cpp
@@ -93,6 +103,14 @@ add_llvm_tool(llvm-bolt
intrinsics_gen
)
if (DEFINED BOLT_AArcb64)
target_compile_definitions(llvm-bolt PRIVATE AARCH64_AVAILABLE)
endif()
if (DEFINED BOLT_X64)
target_compile_definitions(llvm-bolt PRIVATE X86_AVAILABLE)
endif()
add_llvm_tool_symlink(perf2bolt llvm-bolt)
add_llvm_tool_symlink(llvm-boltdiff llvm-bolt)
add_llvm_tool_symlink(llvm-bolt-heatmap llvm-bolt)

17
bolt/src/RewriteInstance.cpp
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@@ -535,15 +535,18 @@ namespace {
MCPlusBuilder *createMCPlusBuilder(const Triple::ArchType Arch,
const MCInstrAnalysis *Analysis, const MCInstrInfo *Info,
const MCRegisterInfo *RegInfo) {
if (Arch == Triple::x86_64) {
#ifdef X86_AVAILABLE
if (Arch == Triple::x86_64)
return createX86MCPlusBuilder(Analysis, Info, RegInfo);
} else if (Arch == Triple::aarch64) {
return createAArch64MCPlusBuilder(Analysis, Info, RegInfo);
} else {
llvm_unreachable("architecture unsupport by MCPlusBuilder");
}
}
#endif
#ifdef AARCH64_AVAILABLE
if (Arch == Triple::aarch64)
return createAArch64MCPlusBuilder(Analysis, Info, RegInfo);
#endif
llvm_unreachable("architecture unsupport by MCPlusBuilder");
}
}
constexpr const char *RewriteInstance::SectionsToOverwrite[];