ObjFW  Check-in [645b4a9e1d]

Overview
Comment:invoke-x86_64.m: Minor code style change
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SHA3-256: 645b4a9e1da70acd5aa6f39b86415cbad430ebdec2c0d48a340db8d57f208d82
User & Date: js on 2017-09-21 20:25:31
Other Links: manifest | tags
Context
2017-09-21
21:45
invoke-x86_64.m: Fix passing of floats check-in: af2a5c852b user: js tags: trunk
20:25
invoke-x86_64.m: Minor code style change check-in: 645b4a9e1d user: js tags: trunk
2017-09-17
10:48
invoke-x86_64.m: Support complex long double check-in: 4628f6bbff user: js tags: trunk
Changes
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Modified src/invocation/invoke-x86_64.m from [036198eaf0] to [f312bfc975].

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	RETURN_TYPE_X87,
	RETURN_TYPE_COMPLEX_X87,
	RETURN_TYPE_JMP,
	RETURN_TYPE_JMP_STRET
};

struct call_context {
	uint64_t gpr[NUM_GPR_IN + NUM_GPR_OUT];
	__m128 sse[NUM_SSE_IN];
	long double x87[NUM_X87_OUT];
	uint8_t num_sse_used;
	uint8_t return_type;
	uint64_t stack_size;
	uint64_t GPR[NUM_GPR_IN + NUM_GPR_OUT];
	__m128 SSE[NUM_SSE_IN];
	long double X87[NUM_X87_OUT];
	uint8_t numSSEUsed;
	uint8_t returnType;
	uint64_t stackSize;
	uint64_t stack[];
};

extern void of_invocation_call(struct call_context *);

static void
pushGPR(struct call_context **context, uint_fast8_t *currentGPR, uint64_t value)
{
	struct call_context *newContext;

	if (*currentGPR < NUM_GPR_IN) {
		(*context)->gpr[(*currentGPR)++] = value;
		(*context)->GPR[(*currentGPR)++] = value;
		return;
	}

	if ((newContext = realloc(*context,
	    sizeof(**context) + ((*context)->stack_size + 1) * 8)) == NULL) {
	    sizeof(**context) + ((*context)->stackSize + 1) * 8)) == NULL) {
		free(*context);
		@throw [OFOutOfMemoryException exceptionWithRequestedSize:
		    sizeof(**context) + ((*context)->stack_size + 1) * 8];
		    sizeof(**context) + ((*context)->stackSize + 1) * 8];
	}

	newContext->stack[newContext->stack_size] = value;
	newContext->stack_size++;
	newContext->stack[newContext->stackSize] = value;
	newContext->stackSize++;
	*context = newContext;
}

static void
pushDouble(struct call_context **context, uint_fast8_t *currentSSE,
    double value)
{
	struct call_context *newContext;

	if (*currentSSE < NUM_SSE_IN) {
		(*context)->sse[(*currentSSE)++] = (__m128)_mm_set_sd(value);
		(*context)->num_sse_used++;
		(*context)->SSE[(*currentSSE)++] = (__m128)_mm_set_sd(value);
		(*context)->numSSEUsed++;
		return;
	}

	if ((newContext = realloc(*context,
	    sizeof(**context) + ((*context)->stack_size + 1) * 8)) == NULL) {
	    sizeof(**context) + ((*context)->stackSize + 1) * 8)) == NULL) {
		free(*context);
		@throw [OFOutOfMemoryException exceptionWithRequestedSize:
		    sizeof(**context) + ((*context)->stack_size + 1) * 8];
		    sizeof(**context) + ((*context)->stackSize + 1) * 8];
	}

	memcpy(&newContext->stack[newContext->stack_size], &value, 8);
	newContext->stack_size++;
	memcpy(&newContext->stack[newContext->stackSize], &value, 8);
	newContext->stackSize++;
	*context = newContext;
}

static void
pushQuad(struct call_context **context, uint_fast8_t *currentSSE,
    double low, double high)
{
	size_t stackSize;
	struct call_context *newContext;

	if (*currentSSE + 1 < NUM_SSE_IN) {
		(*context)->sse[(*currentSSE)++] = (__m128)_mm_set_sd(low);
		(*context)->sse[(*currentSSE)++] = (__m128)_mm_set_sd(high);
		(*context)->num_sse_used += 2;
		(*context)->SSE[(*currentSSE)++] = (__m128)_mm_set_sd(low);
		(*context)->SSE[(*currentSSE)++] = (__m128)_mm_set_sd(high);
		(*context)->numSSEUsed += 2;
		return;
	}

	stackSize = (*context)->stack_size + 2;
	stackSize = (*context)->stackSize + 2;

	if ((newContext = realloc(*context,
	    sizeof(**context) + stackSize * 8)) == NULL) {
		free(*context);
		@throw [OFOutOfMemoryException exceptionWithRequestedSize:
		    sizeof(**context) + stackSize * 8];
	}

	memset(&newContext->stack[newContext->stack_size], '\0',
	    (stackSize - newContext->stack_size) * 8);
	memset(&newContext->stack[newContext->stackSize], '\0',
	    (stackSize - newContext->stackSize) * 8);
	memcpy(&newContext->stack[stackSize - 2], &low, 8);
	memcpy(&newContext->stack[stackSize - 1], &high, 8);
	newContext->stack_size = stackSize;
	newContext->stackSize = stackSize;
	*context = newContext;
}

static void
pushLongDouble(struct call_context **context, long double value)
{
	struct call_context *newContext;

	if ((newContext = realloc(*context,
	    sizeof(**context) + ((*context)->stack_size + 2) * 8)) == NULL) {
	    sizeof(**context) + ((*context)->stackSize + 2) * 8)) == NULL) {
		free(*context);
		@throw [OFOutOfMemoryException exceptionWithRequestedSize:
		    sizeof(**context) + ((*context)->stack_size + 2) * 8];
		    sizeof(**context) + ((*context)->stackSize + 2) * 8];
	}

	memcpy(&newContext->stack[newContext->stack_size], &value, 16);
	newContext->stack_size += 2;
	memcpy(&newContext->stack[newContext->stackSize], &value, 16);
	newContext->stackSize += 2;
	*context = newContext;
}

static void
pushLongDoublePair(struct call_context **context, long double value[2])
{
	size_t stackSize;
	struct call_context *newContext;

	stackSize = OF_ROUND_UP_POW2(2, (*context)->stack_size) + 4;
	stackSize = OF_ROUND_UP_POW2(2, (*context)->stackSize) + 4;

	if ((newContext = realloc(*context,
	    sizeof(**context) + stackSize * 8)) == NULL) {
		free(*context);
		@throw [OFOutOfMemoryException exceptionWithRequestedSize:
		    sizeof(**context) + stackSize * 8];
	}

	memset(&newContext->stack[newContext->stack_size], '\0',
	    (stackSize - newContext->stack_size) * 8);
	memset(&newContext->stack[newContext->stackSize], '\0',
	    (stackSize - newContext->stackSize) * 8);
	memcpy(&newContext->stack[stackSize - 4], value, 32);
	newContext->stack_size = stackSize;
	newContext->stackSize = stackSize;
	*context = newContext;
}

#if defined(__SIZEOF_INT128__) && !defined(__clang__)
static void
pushInt128(struct call_context **context, uint_fast8_t *currentGPR,
    uint64_t value[2])
{
	size_t stackSize;
	struct call_context *newContext;

	if (*currentGPR + 1 < NUM_GPR_IN) {
		(*context)->gpr[(*currentGPR)++] = value[0];
		(*context)->gpr[(*currentGPR)++] = value[1];
		(*context)->GPR[(*currentGPR)++] = value[0];
		(*context)->GPR[(*currentGPR)++] = value[1];
		return;
	}

	stackSize = OF_ROUND_UP_POW2(2, (*context)->stack_size) + 2;
	stackSize = OF_ROUND_UP_POW2(2, (*context)->stackSize) + 2;

	if ((newContext = realloc(*context,
	    sizeof(**context) + stackSize * 8)) == NULL) {
		free(*context);
		@throw [OFOutOfMemoryException exceptionWithRequestedSize:
		    sizeof(**context) + stackSize * 8];
	}

	memset(&newContext->stack[newContext->stack_size], '\0',
	    (stackSize - newContext->stack_size) * 8);
	memset(&newContext->stack[newContext->stackSize], '\0',
	    (stackSize - newContext->stackSize) * 8);
	memcpy(&newContext->stack[stackSize - 2], value, 16);
	newContext->stack_size = stackSize;
	newContext->stackSize = stackSize;
	*context = newContext;
}
#endif

void
of_invocation_invoke(OFInvocation *invocation)
{
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	for (size_t i = 0; i < numberOfArguments; i++) {
		typeEncoding = [methodSignature argumentTypeAtIndex: i];

		if (*typeEncoding == 'r')
			typeEncoding++;

		switch (*typeEncoding) {
#define CASE_GPR(encoding, type)					\
		case encoding:						\
			{						\
				type tmp;				\
				[invocation getArgument: &tmp		\
						atIndex: i];		\
				pushGPR(&context, &currentGPR, tmp);	\
			}						\
#define CASE_GPR(encoding, type)					       \
		case encoding:						       \
			{						       \
				type tmp;				       \
				[invocation getArgument: &tmp		       \
						atIndex: i];		       \
				pushGPR(&context, &currentGPR, (uint64_t)tmp); \
			}						       \
			break;
		CASE_GPR('c', char)
		CASE_GPR('C', unsigned char)
		CASE_GPR('i', int)
		CASE_GPR('I', unsigned int)
		CASE_GPR('s', short)
		CASE_GPR('S', unsigned short)
		CASE_GPR('l', long)
		CASE_GPR('L', unsigned long)
		CASE_GPR('q', long long)
		CASE_GPR('Q', unsigned long long)
		CASE_GPR('B', _Bool)
		CASE_GPR('*', uintptr_t)
		CASE_GPR('@', uintptr_t)
		CASE_GPR('#', uintptr_t)
		CASE_GPR(':', uintptr_t)
		CASE_GPR('^', uintptr_t)
		CASE_GPR('*', char *)
		CASE_GPR('@', id)
		CASE_GPR('#', Class)
		/*
		 * Using SEL triggers a warning that casting a SEL to an
		 * integer is deprecated.
		 */
		CASE_GPR(':', void *)
		CASE_GPR('^', void *)
#undef CASE_GPR
#ifdef __SIZEOF_INT128__
		case 't':
		case 'T':;
			uint64_t int128Tmp[2];
			[invocation getArgument: &int128Tmp
					atIndex: i];
# ifndef __clang__
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#endif
		/* TODO: '[' */
		/* TODO: '{' */
		/* TODO: '(' */
		default:
			free(context);
			@throw [OFInvalidFormatException exception];
#undef CASE_GPR
		}
	}

	typeEncoding = [methodSignature methodReturnType];

	if (*typeEncoding == 'r')
		typeEncoding++;
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	case '^':
#ifdef __SIZEOF_INT128__
	case 't':
	case 'T':
#endif
	case 'f':
	case 'd':
		context->return_type = RETURN_TYPE_NORMAL;
		context->returnType = RETURN_TYPE_NORMAL;
		break;
	case 'D':
		context->return_type = RETURN_TYPE_X87;
		context->returnType = RETURN_TYPE_X87;
		break;
#ifndef __STDC_NO_COMPLEX__
	case 'j':
		switch (typeEncoding[1]) {
		case 'f':
		case 'd':
			context->return_type = RETURN_TYPE_NORMAL;
			context->returnType = RETURN_TYPE_NORMAL;
			break;
		case 'D':
			context->return_type = RETURN_TYPE_COMPLEX_X87;
			context->returnType = RETURN_TYPE_COMPLEX_X87;
			break;
		default:
			free(context);
			@throw [OFInvalidFormatException exception];
		}

		break;
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	of_invocation_call(context);

	switch (*typeEncoding) {
#define CASE_GPR(encoding, type)					   \
		case encoding:						   \
			{						   \
				type tmp = (type)context->gpr[NUM_GPR_IN]; \
				type tmp = (type)context->GPR[NUM_GPR_IN]; \
				[invocation setReturnValue: &tmp];	   \
			}						   \
			break;
		CASE_GPR('c', char)
		CASE_GPR('C', unsigned char)
		CASE_GPR('i', int)
		CASE_GPR('I', unsigned int)
		CASE_GPR('s', short)
		CASE_GPR('S', unsigned short)
		CASE_GPR('l', long)
		CASE_GPR('L', unsigned long)
		CASE_GPR('q', long long)
		CASE_GPR('Q', unsigned long long)
		CASE_GPR('B', _Bool)
		CASE_GPR('*', uintptr_t)
		CASE_GPR('@', uintptr_t)
		CASE_GPR('#', uintptr_t)
		CASE_GPR(':', uintptr_t)
		CASE_GPR('^', uintptr_t)
		CASE_GPR('*', char *)
		CASE_GPR('@', id)
		CASE_GPR('#', Class)
		CASE_GPR(':', SEL)
		CASE_GPR('^', void *)
#undef CASE_GPR
#ifdef __SIZEOF_INT128__
		case 't':
		case 'T':;
			[invocation setReturnValue: &context->gpr[NUM_GPR_IN]];
			[invocation setReturnValue: &context->GPR[NUM_GPR_IN]];
			break;
#endif
		case 'f':;
			float floatTmp;
			_mm_store_ss(&floatTmp, context->sse[0]);
			_mm_store_ss(&floatTmp, context->SSE[0]);
			[invocation setReturnValue: &floatTmp];
			break;
		case 'd':;
			double doubleTmp;
			_mm_store_sd(&doubleTmp, (__m128d)context->sse[0]);
			_mm_store_sd(&doubleTmp, (__m128d)context->SSE[0]);
			[invocation setReturnValue: &doubleTmp];
			break;
		case 'D':
			[invocation setReturnValue: &context->x87[0]];
			[invocation setReturnValue: &context->X87[0]];
			break;
#ifndef __STDC_NO_COMPLEX__
		case 'j':
			switch (typeEncoding[1]) {
			case 'f':;
				double complexFloatTmp;
				_mm_store_sd(&complexFloatTmp,
				    (__m128d)context->sse[0]);
				    (__m128d)context->SSE[0]);
				[invocation setReturnValue: &complexFloatTmp];
				break;
			case 'd':;
				double complexDoubleTmp[2];
				_mm_store_sd(&complexDoubleTmp[0],
				    (__m128d)context->sse[0]);
				    (__m128d)context->SSE[0]);
				_mm_store_sd(&complexDoubleTmp[1],
				    (__m128d)context->sse[1]);
				    (__m128d)context->SSE[1]);
				[invocation setReturnValue: &complexDoubleTmp];
				break;
			case 'D':
				[invocation setReturnValue: context->x87];
				[invocation setReturnValue: context->X87];
				break;
			default:
				free(context);
				@throw [OFInvalidFormatException exception];
			}

			break;
#endif
		/* TODO: '[' */
		/* TODO: '{' */
		/* TODO: '(' */
		default:
			free(context);
			@throw [OFInvalidFormatException exception];
#undef CASE_GPR
	}

	free(context);
}

Fossil 2.23 [47362306a7] 2023-11-01 18:56:47
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