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Targets now configure themselves based on the source module, not on the

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ad-hoc "Config" flags


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8134 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2003-08-24 19:50:53 +00:00
parent 62c720a5bd
commit 39c07264da
5 changed files with 36 additions and 22 deletions
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35
lib/ExecutionEngine/Interpreter/Interpreter.cpp
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@ -7,27 +7,44 @@
//===----------------------------------------------------------------------===//
#include "Interpreter.h"
#include "llvm/Target/TargetMachineImpls.h"
#include "llvm/Module.h"
/// createInterpreter - Create a new interpreter object. This can never fail.
///
ExecutionEngine *ExecutionEngine::createInterpreter(Module *M,
unsigned Config,
bool DebugMode,
bool TraceMode) {
return new Interpreter(M, Config, DebugMode, TraceMode);
bool isLittleEndian;
switch (M->getEndianness()) {
case Module::LittleEndian: isLittleEndian = true; break;
case Module::BigEndian: isLittleEndian = false; break;
case Module::AnyPointerSize:
int Test = 0;
*(char*)&Test = 1; // Return true if the host is little endian
isLittleEndian = (Test == 1);
break;
}
bool isLongPointer;
switch (M->getPointerSize()) {
case Module::Pointer32: isLongPointer = false; break;
case Module::Pointer64: isLongPointer = true; break;
case Module::AnyPointerSize:
isLongPointer = (sizeof(void*) == 8); // Follow host
break;
}
return new Interpreter(M, isLittleEndian, isLongPointer, DebugMode,TraceMode);
}
//===----------------------------------------------------------------------===//
// Interpreter ctor - Initialize stuff
//
Interpreter::Interpreter(Module *M, unsigned Config,
bool DebugMode, bool TraceMode)
Interpreter::Interpreter(Module *M, bool isLittleEndian, bool isLongPointer,
bool DebugMode, bool TraceMode)
: ExecutionEngine(M), ExitCode(0), Debug(DebugMode), Trace(TraceMode),
CurFrame(-1), TD("lli", (Config & TM::EndianMask) == TM::LittleEndian,
(Config & TM::PtrSizeMask) == TM::PtrSize64 ? 8 : 4,
(Config & TM::PtrSizeMask) == TM::PtrSize64 ? 8 : 4,
(Config & TM::PtrSizeMask) == TM::PtrSize64 ? 8 : 4) {
CurFrame(-1), TD("lli", isLittleEndian, isLongPointer ? 8 : 4,
isLongPointer ? 8 : 4, isLongPointer ? 8 : 4) {
setTargetData(TD);
// Initialize the "backend"