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[JAEGER] Start filling out the register allocator and stub call mechanism.

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This commit is contained in:
David Anderson
2010-05-27 21:26:19 -07:00
parent a1aa55d557
commit de4f14eb87
14 changed files with 716 additions and 188 deletions
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132
js/src/methodjit/Compiler.cpp
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@@ -39,7 +39,8 @@
* ***** END LICENSE BLOCK ***** */
#include "MethodJIT.h"
#include "Compiler.h"
#include "assembler/assembler/LinkBuffer.h"
#include "StubCalls.h"
#include "assembler/jit/ExecutableAllocator.h"
#include "jsautooplen.h"
@@ -125,7 +126,7 @@ mjit::Compiler::Compile()
#endif
JaegerSpew(JSpew_Scripts, "successfully compiled (code \"%p\") (size \"%ld\")\n",
(void*)script->ncode, 0); //cr.m_size);
(void*)script->ncode, masm.size() + stubcc.size()); //cr.m_size);
return Compile_Okay;
}
@@ -137,6 +138,20 @@ mjit::Compiler::~Compiler()
cx->free(jumpMap);
}
CompileStatus
mjit::TryCompile(JSContext *cx, JSScript *script, JSFunction *fun, JSObject *scopeChain)
{
Compiler cc(cx, script, fun, scopeChain);
JS_ASSERT(!script->ncode);
CompileStatus status = cc.Compile();
if (status != Compile_Okay)
script->ncode = JS_UNJITTABLE_METHOD;
return status;
}
CompileStatus
mjit::Compiler::generatePrologue()
{
@@ -157,6 +172,45 @@ mjit::Compiler::generatePrologue()
return Compile_Okay;
}
CompileStatus
mjit::Compiler::generateEpilogue()
{
return Compile_Okay;
}
CompileStatus
mjit::Compiler::finishThisUp()
{
for (size_t i = 0; i < branchPatches.length(); i++) {
Label label = labelOf(branchPatches[i].pc);
branchPatches[i].jump.linkTo(label, &masm);
}
JSC::ExecutablePool *execPool = getExecPool(masm.size() + stubcc.size());
if (!execPool)
return Compile_Abort;
uint8 *result = (uint8 *)execPool->alloc(masm.size() + stubcc.size());
JSC::ExecutableAllocator::makeWritable(result, masm.size() + stubcc.size());
memcpy(result, masm.buffer(), masm.size());
memcpy(result + masm.size(), stubcc.buffer(), stubcc.size());
/* Patch up stub calls. */
masm.finalize(result);
stubcc.finalize(result + masm.size());
JSC::ExecutableAllocator::makeExecutable(result, masm.size() + stubcc.size());
JSC::ExecutableAllocator::cacheFlush(result, masm.size() + stubcc.size());
script->ncode = result;
#ifdef DEBUG
script->jitLength = masm.size() + stubcc.size();
#endif
script->execPool = execPool;
return Compile_Okay;
}
#define BEGIN_CASE(name) case name:
#define END_CASE(name) \
JS_BEGIN_MACRO \
@@ -245,6 +299,13 @@ mjit::Compiler::generateMethod()
jsop_bindname(fullAtomIndex(PC));
END_CASE(JSOP_BINDNAME)
BEGIN_CASE(JSOP_SETNAME)
prepareStubCall();
masm.move(Imm32(fullAtomIndex(PC)), Registers::ArgReg1);
stubCall(stubs::SetName, Uses(2), Defs(1));
frame.pop();
END_CASE(JSOP_SETNAME)
BEGIN_CASE(JSOP_UINT24)
frame.push(Value(Int32Tag((int32_t) GET_UINT24(PC))));
END_CASE(JSOP_UINT24)
@@ -252,7 +313,7 @@ mjit::Compiler::generateMethod()
BEGIN_CASE(JSOP_STOP)
/* Safe point! */
cg.storeJsval(Value(UndefinedTag()),
Address(FrameState::FpReg,
Address(Assembler::FpReg,
offsetof(JSStackFrame, rval)));
emitReturn();
goto done;
@@ -335,51 +396,6 @@ mjit::Compiler::jumpInScript(Jump j, jsbytecode *pc)
branchPatches.append(BranchPatch(j, pc));
}
CompileStatus
mjit::Compiler::generateEpilogue()
{
return Compile_Okay;
}
CompileStatus
mjit::Compiler::finishThisUp()
{
for (size_t i = 0; i < branchPatches.length(); i++) {
Label label = labelOf(branchPatches[i].pc);
branchPatches[i].jump.linkTo(label, &masm);
}
JSC::ExecutablePool *execPool = getExecPool(masm.size());
if (!execPool)
return Compile_Abort;
JSC::LinkBuffer patchBuffer(&masm, execPool);
JSC::MacroAssemblerCodeRef cr = patchBuffer.finalizeCode();
script->ncode = cr.m_code.executableAddress();
#ifdef DEBUG
script->jitLength = masm.size();
#endif
script->execPool = cr.m_executablePool;
cr.m_executablePool = NULL;
return Compile_Okay;
}
CompileStatus
mjit::TryCompile(JSContext *cx, JSScript *script, JSFunction *fun, JSObject *scopeChain)
{
Compiler cc(cx, script, fun, scopeChain);
JS_ASSERT(!script->ncode);
CompileStatus status = cc.Compile();
if (status != Compile_Okay)
script->ncode = JS_UNJITTABLE_METHOD;
return status;
}
void
mjit::Compiler::jsop_setglobal(uint32 index)
{
@@ -430,3 +446,23 @@ mjit::Compiler::emitReturn()
masm.ret();
}
void
mjit::Compiler::prepareStubCall()
{
JaegerSpew(JSpew_Insns, " ---- SLOW CALL, SYNCING FRAME ---- \n");
frame.sync();
JaegerSpew(JSpew_Insns, " ---- KILLING TEMP REGS ---- \n");
frame.killSyncedRegs(Registers::TempRegs);
JaegerSpew(JSpew_Insns, " ---- FRAME SYNCING DONE ---- \n");
}
JSC::MacroAssembler::Call
mjit::Compiler::stubCall(void *ptr, Uses uses, Defs defs)
{
frame.forget(uses.nuses);
JaegerSpew(JSpew_Insns, " ---- CALLING STUB ---- \n");
Call cl = masm.stubCall(ptr, PC, frame.stackDepth() + script->nfixed);
JaegerSpew(JSpew_Insns, " ---- END SLOW CALL ---- \n");
return cl;
}