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- add -dumpjit command line parameter that dumps the JIT log for all functions to dumpjit.txt

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This commit is contained in:
Magnus Norddahl 2018-10-10 06:17:35 +02:00
commit 01825231ec
5 changed files with 79 additions and 10 deletions
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57
src/scripting/vm/jit.cpp
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@ -91,6 +91,38 @@ JitFuncPtr JitCompile(VMScriptFunction *sfunc)
}
}
void JitDumpLog(FILE *file, VMScriptFunction *sfunc)
{
using namespace asmjit;
StringLogger logger;
try
{
auto *jit = JitGetRuntime();
ThrowingErrorHandler errorHandler;
CodeHolder code;
code.init(jit->getCodeInfo());
code.setErrorHandler(&errorHandler);
code.setLogger(&logger);
JitCompiler compiler(&code, sfunc);
compiler.Codegen();
fwrite(logger.getString(), logger.getLength(), 1, file);
}
catch (const std::exception &e)
{
fwrite(logger.getString(), logger.getLength(), 1, file);
FString err;
err.Format("Unexpected JIT error: %s\n", e.what());
fwrite(err.GetChars(), err.Len(), 1, file);
fclose(file);
I_FatalError("Unexpected JIT error: %s\n", e.what());
}
}
/////////////////////////////////////////////////////////////////////////////
static const char *OpNames[NUM_OPS] =
@ -111,14 +143,13 @@ void JitCompiler::Codegen()
int i = (int)(ptrdiff_t)(pc - sfunc->Code);
op = pc->op;
cc.bind(labels[i]);
ResetTemp();
FString lineinfo;
lineinfo.Format("; %s(line %d): %02x%02x%02x%02x %s", sfunc->PrintableName.GetChars(), sfunc->PCToLine(pc), pc->op, pc->a, pc->b, pc->c, OpNames[op]);
lineinfo.Format("; line %d: %02x%02x%02x%02x %s", sfunc->PCToLine(pc), pc->op, pc->a, pc->b, pc->c, OpNames[op]);
cc.comment("", 0);
cc.comment(lineinfo.GetChars(), lineinfo.Len());
cc.bind(labels[i]);
ResetTemp();
EmitOpcode();
pc++;
@ -148,10 +179,17 @@ void JitCompiler::Setup()
ResetTemp();
static const char *marks = "=======================================================";
cc.comment("", 0);
cc.comment(marks, 56);
FString funcname;
funcname.Format("Function: %s", sfunc->PrintableName.GetChars());
cc.comment(funcname.GetChars(), funcname.Len());
cc.comment(marks, 56);
cc.comment("", 0);
auto unusedFunc = cc.newIntPtr("func"); // VMFunction*
args = cc.newIntPtr("args"); // VMValue *params
numargs = cc.newInt32("numargs"); // int numargs
@ -207,6 +245,11 @@ void JitCompiler::Setup()
regA[i] = cc.newIntPtr(regname.GetChars());
}
int size = sfunc->CodeSize;
labels.Resize(size);
for (int i = 0; i < size; i++)
labels[i] = cc.newLabel();
frameD = cc.newIntPtr();
frameF = cc.newIntPtr();
frameS = cc.newIntPtr();
@ -369,10 +412,6 @@ void JitCompiler::Setup()
for (int i = 0; i < sfunc->NumRegA; i++)
cc.mov(regA[i], x86::ptr(frameA, i * sizeof(void*)));
}
int size = sfunc->CodeSize;
labels.Resize(size);
for (int i = 0; i < size; i++) labels[i] = cc.newLabel();
}
void JitCompiler::EmitPopFrame()