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Use more structured command line option processing

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llvm-svn: 6742
This commit is contained in:
Chris Lattner 2003-06-17 15:43:13 +00:00
parent 1f384965af
commit 1afd194a33
3 changed files with 37 additions and 63 deletions
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56
lib/ExecutionEngine/JIT/JIT.cpp
View File

@ -15,18 +15,23 @@
#include "llvm/PassManager.h"
namespace {
cl::opt<std::string>
Arch("march", cl::desc("Architecture: `x86' or `sparc'"), cl::Prefix,
cl::value_desc("machine architecture"));
static std::string DefaultArch =
#if defined(i386) || defined(__i386__) || defined(__x86__)
"x86";
#elif defined(sparc) || defined(__sparc__) || defined(__sparcv9)
"sparc";
#else
"";
enum ArchName { nojit, x86, sparc };
cl::opt<ArchName>
Arch("march", cl::desc("Architecture to JIT to:"), cl::Prefix,
cl::values(clEnumVal(x86, " IA-32 (pentium and above)"),
#if defined(sparc) || defined(__sparc__) || defined(__sparcv9)
clEnumVal(sparc, " Sparc-V9"),
#endif
0),
#if defined(i386) || defined(__i386__) || defined(__x86__)
cl::init(x86)
#elif defined(sparc) || defined(__sparc__) || defined(__sparcv9)
cl::init(sparc)
#else
cl::init(nojit)
#endif
);
}
/// createJIT - Create an return a new JIT compiler if there is one available
@ -35,30 +40,31 @@ namespace {
ExecutionEngine *ExecutionEngine::createJIT(Module *M, unsigned Config) {
TargetMachine* (*TargetMachineAllocator)(unsigned) = 0;
if (Arch == "")
Arch = DefaultArch;
// Allow a command-line switch to override what *should* be the default target
// machine for this platform. This allows for debugging a Sparc JIT on X86 --
// our X86 machines are much faster at recompiling LLVM and linking lli.
if (Arch == "x86") {
switch (Arch) {
case x86:
TargetMachineAllocator = allocateX86TargetMachine;
break;
#if defined(sparc) || defined(__sparc__) || defined(__sparcv9)
} else if (Arch == "sparc") {
case sparc:
TargetMachineAllocator = allocateSparcTargetMachine;
break;
#endif
}
if (TargetMachineAllocator) {
// Allocate a target...
TargetMachine *Target = (*TargetMachineAllocator)(Config);
assert(Target && "Could not allocate target machine!");
// Create the virtual machine object...
return new VM(M, Target);
} else {
default:
assert(0 && "-march flag not supported on this host!");
case nojit:
return 0;
}
// Allocate a target...
TargetMachine *Target = (*TargetMachineAllocator)(Config);
assert(Target && "Could not allocate target machine!");
// Create the virtual machine object...
return new VM(M, Target);
}
VM::VM(Module *M, TargetMachine *tm) : ExecutionEngine(M), TM(*tm) {

22
lib/ExecutionEngine/Makefile
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@ -2,25 +2,9 @@ LEVEL = ../..
TOOLNAME = lli
PARALLEL_DIRS = Interpreter JIT
# FIXME: This enables testing the Sparc JIT on x86.
# Perhaps in the future this should be a ./configure option.
# Generic JIT libraries
JITLIBS = lli-jit codegen
ARCHLIBS =
# What the X86 JIT requires
JITLIBS += x86
ARCHLIBS +=
# What the Sparc JIT requires
JITLIBS += sparc
ARCHLIBS = sched livevar instrument.a profpaths transformutils.a \
bcwriter transforms.a ipo.a ipa.a datastructure.a regalloc \
mapping select postopts.a preopts
USEDLIBS = lli-interpreter $(JITLIBS) bcreader vmcore scalaropts \
analysis.a support.a target.a $(ARCHLIBS)
JITLIBS = lli-jit codegen x86
USEDLIBS = lli-interpreter $(JITLIBS) bcreader vmcore scalaropts.a \
analysis.a support.a target.a
# Have gcc tell the linker to export symbols from the program so that
# dynamically loaded modules can be linked against them.

22
tools/lli/Makefile
View File

@ -2,25 +2,9 @@ LEVEL = ../..
TOOLNAME = lli
PARALLEL_DIRS = Interpreter JIT
# FIXME: This enables testing the Sparc JIT on x86.
# Perhaps in the future this should be a ./configure option.
# Generic JIT libraries
JITLIBS = lli-jit codegen
ARCHLIBS =
# What the X86 JIT requires
JITLIBS += x86
ARCHLIBS +=
# What the Sparc JIT requires
JITLIBS += sparc
ARCHLIBS = sched livevar instrument.a profpaths transformutils.a \
bcwriter transforms.a ipo.a ipa.a datastructure.a regalloc \
mapping select postopts.a preopts
USEDLIBS = lli-interpreter $(JITLIBS) bcreader vmcore scalaropts \
analysis.a support.a target.a $(ARCHLIBS)
JITLIBS = lli-jit codegen x86
USEDLIBS = lli-interpreter $(JITLIBS) bcreader vmcore scalaropts.a \
analysis.a support.a target.a
# Have gcc tell the linker to export symbols from the program so that
# dynamically loaded modules can be linked against them.