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gallivm: Support MCJIT on Windows.

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It works fine, though it requires using ELF objects.

With this change there is nothing preventing us to switch exclusively
to MCJIT, everywhere.  It's still off though.
This commit is contained in:
José Fonseca 2014-05-14 12:20:14 +01:00
parent 94dbc16dc4
commit 2c02f34fcc
2 changed files with 12 additions and 5 deletions
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8
scons/llvm.py
View file

@ -104,7 +104,7 @@ def generate(env):
'LLVMBitWriter', 'LLVMX86Disassembler', 'LLVMX86AsmParser',
'LLVMX86CodeGen', 'LLVMX86Desc', 'LLVMSelectionDAG',
'LLVMAsmPrinter', 'LLVMMCParser', 'LLVMX86AsmPrinter',
'LLVMX86Utils', 'LLVMX86Info', 'LLVMJIT',
'LLVMX86Utils', 'LLVMX86Info', 'LLVMMCJIT', 'LLVMJIT',
'LLVMExecutionEngine', 'LLVMCodeGen', 'LLVMScalarOpts',
'LLVMInstCombine', 'LLVMTransformUtils', 'LLVMipa',
'LLVMAnalysis', 'LLVMTarget', 'LLVMMC', 'LLVMCore',
@ -116,7 +116,7 @@ def generate(env):
'LLVMBitWriter', 'LLVMX86Disassembler', 'LLVMX86AsmParser',
'LLVMX86CodeGen', 'LLVMX86Desc', 'LLVMSelectionDAG',
'LLVMAsmPrinter', 'LLVMMCParser', 'LLVMX86AsmPrinter',
'LLVMX86Utils', 'LLVMX86Info', 'LLVMJIT',
'LLVMX86Utils', 'LLVMX86Info', 'LLVMMCJIT', 'LLVMJIT',
'LLVMExecutionEngine', 'LLVMCodeGen', 'LLVMScalarOpts',
'LLVMInstCombine', 'LLVMTransformUtils', 'LLVMipa',
'LLVMAnalysis', 'LLVMTarget', 'LLVMMC', 'LLVMCore',
@ -165,9 +165,7 @@ def generate(env):
if '-fno-rtti' in cxxflags:
env.Append(CXXFLAGS = ['-fno-rtti'])
components = ['engine', 'bitwriter', 'x86asmprinter']
components.append('mcjit')
components = ['engine', 'mcjit', 'bitwriter', 'x86asmprinter']
env.ParseConfig('llvm-config --libs ' + ' '.join(components))
env.ParseConfig('llvm-config --ldflags')

9
src/gallium/auxiliary/gallivm/lp_bld_misc.cpp
View file

@ -57,6 +57,7 @@
#include <llvm/ADT/Triple.h>
#include <llvm/ExecutionEngine/JITMemoryManager.h>
#include <llvm/Support/CommandLine.h>
#include <llvm/Support/Host.h>
#include <llvm/Support/PrettyStackTrace.h>
#include <llvm/Support/TargetSelect.h>
@ -452,6 +453,14 @@ lp_build_create_jit_compiler_for_module(LLVMExecutionEngineRef *OutJIT,
if (useMCJIT) {
builder.setUseMCJIT(true);
#ifdef _WIN32
/*
* MCJIT works on Windows, but currently only through ELF object format.
*/
std::string targetTriple = llvm::sys::getProcessTriple();
targetTriple.append("-elf");
unwrap(M)->setTargetTriple(targetTriple);
#endif
}
llvm::SmallVector<std::string, 1> MAttrs;