ObjFW  Check-in [4628f6bbff]

Overview
Comment:invoke-x86_64.m: Support complex long double
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Files: files | file ages | folders
SHA3-256: 4628f6bbff4d186230087e95ac380f4d3565ba1f09fea9449e5d5700c78721c9
User & Date: js on 2017-09-17 10:48:07
Other Links: manifest | tags
Context
2017-09-21
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
03:27
call-x86_64-elf.S: Fix use of overwritten %rdi check-in: 9adb8518bb user: js tags: trunk
Changes

Modified src/invocation/apple-call-x86_64.S from [387ccf9ff7] to [25b2bcb4a7].

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	movq	0(%rdi), %rdi

	movb	225(%rdi), %r11b

	cmpb	$1, %r11b
	je	Lcall_send_stret

	cmpb	$3, %r11b
	je	_objc_msgSend

	cmpb	$4, %r11b
	je	_objc_msgSend_stret

	call	_objc_msgSend

Lafter_send:
	movq	-8(%rbp), %rdi
	movq	%rax, 48(%rdi)
	movq	%rdx, 56(%rdi)
	movdqa	%xmm0, 64(%rdi)
	movdqa	%xmm1, 80(%rdi)



	cmpb	$2, 225(%rdi)
	je	Lpop_long_double




Lreturn:
	movq	%rbp, %rsp
	popq	%rbp

	ret

Lfix_align:
	xorq	%r11, %r11
	pushq	%r11
	jmp	Lfill_stack

Lcall_send_stret:
	call	_objc_msgSend_stret
	jmp	Lafter_send

Lpop_long_double:
	fstpt	192(%rdi)
	jmp	Lreturn












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	movq	0(%rdi), %rdi

	movb	225(%rdi), %r11b

	cmpb	$1, %r11b
	je	Lcall_send_stret

	cmpb	$4, %r11b
	je	_objc_msgSend

	cmpb	$5, %r11b
	je	_objc_msgSend_stret

	call	_objc_msgSend

Lafter_send:
	movq	-8(%rbp), %rdi
	movq	%rax, 48(%rdi)
	movq	%rdx, 56(%rdi)
	movdqa	%xmm0, 64(%rdi)
	movdqa	%xmm1, 80(%rdi)

	movb	225(%rdi), %r11b

	cmpb	$2, %r11b
	je	Lpop_long_double

	cmpb	$3, %r11b
	je	Lpop_complex_long_double

Lreturn:
	movq	%rbp, %rsp
	popq	%rbp

	ret

Lfix_align:
	xorq	%r11, %r11
	pushq	%r11
	jmp	Lfill_stack

Lcall_send_stret:
	call	_objc_msgSend_stret
	jmp	Lafter_send

Lpop_long_double:
	fstpt	192(%rdi)
	jmp	Lreturn

Lpop_complex_long_double:
	fstpt	192(%rdi)
	fstpt	208(%rdi)
	jmp	Lreturn

Modified src/invocation/call-x86_64-elf.S from [dd38e0cbde] to [02e59e10e2].

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	movq	16(%rdi), %rdx
	movq	8(%rdi), %rsi
	movq	0(%rdi), %rdi

	movq	-8(%rbp), %r11
	movb	225(%r11), %r11b

	cmpb	$3, %r11b
	je	.jmp_into_method
	cmpb	$4, %r11b
	je	.jmp_into_method

	movq	-16(%rbp), %r11
	call	*%r11

.after_send:
	movq	-8(%rbp), %rdi
	movq	%rax, 48(%rdi)
	movq	%rdx, 56(%rdi)
	movdqa	%xmm0, 64(%rdi)
	movdqa	%xmm1, 80(%rdi)



	cmpb	$2, 225(%rdi)
	je	.pop_long_double




.return:
	movq	%rbp, %rsp
	popq	%rbp

	ret

.fix_align:







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	movq	16(%rdi), %rdx
	movq	8(%rdi), %rsi
	movq	0(%rdi), %rdi

	movq	-8(%rbp), %r11
	movb	225(%r11), %r11b

	cmpb	$4, %r11b
	je	.jmp_into_method
	cmpb	$5, %r11b
	je	.jmp_into_method

	movq	-16(%rbp), %r11
	call	*%r11

.after_send:
	movq	-8(%rbp), %rdi
	movq	%rax, 48(%rdi)
	movq	%rdx, 56(%rdi)
	movdqa	%xmm0, 64(%rdi)
	movdqa	%xmm1, 80(%rdi)

	movb	225(%rdi), %r11b

	cmpb	$2, %r11b
	je	.pop_long_double

	cmpb	$3, %r11b
	je	.pop_complex_long_double

.return:
	movq	%rbp, %rsp
	popq	%rbp

	ret

.fix_align:
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.jmp_into_method:
	movq	-16(%rbp), %r11
	jmp	*%r11

.pop_long_double:
	fstpt	192(%rdi)
	jmp	.return






#ifdef OF_LINUX
.section .note.GNU-stack, "", %progbits
#endif







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.jmp_into_method:
	movq	-16(%rbp), %r11
	jmp	*%r11

.pop_long_double:
	fstpt	192(%rdi)
	jmp	.return

.pop_complex_long_double:
	fstpt	192(%rdi)
	fstpt	208(%rdi)
	jmp	.return

#ifdef OF_LINUX
.section .note.GNU-stack, "", %progbits
#endif

Modified src/invocation/invoke-x86_64.m from [567ef57186] to [036198eaf0].

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#define NUM_SSE_IN 8
#define NUM_X87_OUT 2

enum {
	RETURN_TYPE_NORMAL,
	RETURN_TYPE_STRUCT,
	RETURN_TYPE_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];







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#define NUM_SSE_IN 8
#define NUM_X87_OUT 2

enum {
	RETURN_TYPE_NORMAL,
	RETURN_TYPE_STRUCT,
	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];
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		    sizeof(**context) + ((*context)->stack_size + 2) * 8];
	}

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























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

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

	stackSize = OF_ROUND_UP_POW2(2, (*context)->stack_size) + 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);
	newContext->stack[stackSize - 2] = low;
	newContext->stack[stackSize - 1] = high;
	newContext->stack_size = stackSize;
	*context = newContext;
}
#endif

void
of_invocation_invoke(OFInvocation *invocation)







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		    sizeof(**context) + ((*context)->stack_size + 2) * 8];
	}

	memcpy(&newContext->stack[newContext->stack_size], &value, 16);
	newContext->stack_size += 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;

	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);
	memcpy(&newContext->stack[stackSize - 4], value, 32);
	newContext->stack_size = 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];
		return;
	}

	stackSize = OF_ROUND_UP_POW2(2, (*context)->stack_size) + 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);
	memcpy(&newContext->stack[stackSize - 2], value, 16);

	newContext->stack_size = stackSize;
	*context = newContext;
}
#endif

void
of_invocation_invoke(OFInvocation *invocation)
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		CASE_GPR('@', uintptr_t)
		CASE_GPR('#', uintptr_t)
		CASE_GPR(':', uintptr_t)
		CASE_GPR('^', uintptr_t)
#ifdef __SIZEOF_INT128__
		case 't':
		case 'T':;
			struct {
				uint64_t low, high;
			} int128Tmp;
			[invocation getArgument: &int128Tmp
					atIndex: i];
# ifndef __clang__
			pushInt128(&context, &currentGPR,
			    int128Tmp.low, int128Tmp.high);
# else
			/* See https://bugs.llvm.org/show_bug.cgi?id=34646 */
			pushGPR(&context, &currentGPR, int128Tmp.low);
			pushGPR(&context, &currentGPR, int128Tmp.high);
# endif
			break;
#endif
		case 'f':;
			float floatTmp;
			[invocation getArgument: &floatTmp
					atIndex: i];







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		CASE_GPR('@', uintptr_t)
		CASE_GPR('#', uintptr_t)
		CASE_GPR(':', uintptr_t)
		CASE_GPR('^', uintptr_t)
#ifdef __SIZEOF_INT128__
		case 't':
		case 'T':;


			uint64_t int128Tmp[2];
			[invocation getArgument: &int128Tmp
					atIndex: i];
# ifndef __clang__
			pushInt128(&context, &currentGPR, int128Tmp);

# else
			/* See https://bugs.llvm.org/show_bug.cgi?id=34646 */
			pushGPR(&context, &currentGPR, int128Tmp[0]);
			pushGPR(&context, &currentGPR, int128Tmp[1]);
# endif
			break;
#endif
		case 'f':;
			float floatTmp;
			[invocation getArgument: &floatTmp
					atIndex: i];
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			case 'd':;
				double complexDoubleTmp[2];
				[invocation getArgument: &complexDoubleTmp
						atIndex: i];
				pushQuad(&context, &currentSSE,
				    complexDoubleTmp[0], complexDoubleTmp[1]);
				break;
			/* TODO: 'D' */






			default:
				free(context);
				@throw [OFInvalidFormatException exception];
			}

			break;
#endif







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			case 'd':;
				double complexDoubleTmp[2];
				[invocation getArgument: &complexDoubleTmp
						atIndex: i];
				pushQuad(&context, &currentSSE,
				    complexDoubleTmp[0], complexDoubleTmp[1]);
				break;
			case 'D':;
				long double complexLongDoubleTmp[2];
				[invocation getArgument: &complexLongDoubleTmp
						atIndex: i];
				pushLongDoublePair(&context,
				    complexLongDoubleTmp);
				break;
			default:
				free(context);
				@throw [OFInvalidFormatException exception];
			}

			break;
#endif
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#ifndef __STDC_NO_COMPLEX__
	case 'j':
		switch (typeEncoding[1]) {
		case 'f':
		case 'd':
			context->return_type = RETURN_TYPE_NORMAL;
			break;
		/* TODO: 'D' */


		default:
			free(context);
			@throw [OFInvalidFormatException exception];
		}

		break;
#endif







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#ifndef __STDC_NO_COMPLEX__
	case 'j':
		switch (typeEncoding[1]) {
		case 'f':
		case 'd':
			context->return_type = RETURN_TYPE_NORMAL;
			break;
		case 'D':
			context->return_type = RETURN_TYPE_COMPLEX_X87;
			break;
		default:
			free(context);
			@throw [OFInvalidFormatException exception];
		}

		break;
#endif
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				double complexDoubleTmp[2];
				_mm_store_sd(&complexDoubleTmp[0],
				    (__m128d)context->sse[0]);
				_mm_store_sd(&complexDoubleTmp[1],
				    (__m128d)context->sse[1]);
				[invocation setReturnValue: &complexDoubleTmp];
				break;
			/* TODO: 'D' */


			default:
				free(context);
				@throw [OFInvalidFormatException exception];
			}

			break;
#endif







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				double complexDoubleTmp[2];
				_mm_store_sd(&complexDoubleTmp[0],
				    (__m128d)context->sse[0]);
				_mm_store_sd(&complexDoubleTmp[1],
				    (__m128d)context->sse[1]);
				[invocation setReturnValue: &complexDoubleTmp];
				break;
			case 'D':
				[invocation setReturnValue: context->x87];
				break;
			default:
				free(context);
				@throw [OFInvalidFormatException exception];
			}

			break;
#endif

Modified tests/OFInvocationTests.m from [86c5f0ef13] to [22ff9322e7].

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	OF_ENSURE(creal(c14) == 14.0 && cimag(c14) == 7.0);
	OF_ENSURE(creal(c15) == 15.0 && cimag(c15) == 7.5);
	OF_ENSURE(creal(c16) == 16.0 && cimag(c16) == 8.0);

	return (c1 + c2 + c3 + c4 + c5 + c6 + c7 + c8 + c9 + c10 + c11 +
	    c12 + c13 + c14 + c15 + c16) / 16;
}






































#endif

#ifdef __SIZEOF_INT128__
__extension__
- (__int128)invocationTestMethod6: (int)i1
				 : (__int128)i2
				 : (__int128)i3
				 : (__int128)i4
				 : (int)i5
				 : (__int128)i6
				 : (__int128)i7
				 : (__int128)i8







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	OF_ENSURE(creal(c14) == 14.0 && cimag(c14) == 7.0);
	OF_ENSURE(creal(c15) == 15.0 && cimag(c15) == 7.5);
	OF_ENSURE(creal(c16) == 16.0 && cimag(c16) == 8.0);

	return (c1 + c2 + c3 + c4 + c5 + c6 + c7 + c8 + c9 + c10 + c11 +
	    c12 + c13 + c14 + c15 + c16) / 16;
}

- (complex long double)invocationTestMethod6: (complex double)c1
					    : (complex float)c2
					    : (complex long double)c3
					    : (complex double)c4
					    : (complex float)c5
					    : (complex long double)c6
					    : (complex double)c7
					    : (complex float)c8
					    : (complex long double)c9
					    : (complex double)c10
					    : (complex float)c11
					    : (complex long double)c12
					    : (complex double)c13
					    : (complex float)c14
					    : (complex long double)c15
					    : (complex double)c16
{
	OF_ENSURE(creal(c1) == 1.0 && cimag(c1) == 0.5);
	OF_ENSURE(creal(c2) == 2.0 && cimag(c2) == 1.0);
	OF_ENSURE(creal(c3) == 3.0 && cimag(c3) == 1.5);
	OF_ENSURE(creal(c4) == 4.0 && cimag(c4) == 2.0);
	OF_ENSURE(creal(c5) == 5.0 && cimag(c5) == 2.5);
	OF_ENSURE(creal(c6) == 6.0 && cimag(c6) == 3.0);
	OF_ENSURE(creal(c7) == 7.0 && cimag(c7) == 3.5);
	OF_ENSURE(creal(c8) == 8.0 && cimag(c8) == 4.0);
	OF_ENSURE(creal(c9) == 9.0 && cimag(c9) == 4.5);
	OF_ENSURE(creal(c10) == 10.0 && cimag(c10) == 5.0);
	OF_ENSURE(creal(c11) == 11.0 && cimag(c11) == 5.5);
	OF_ENSURE(creal(c12) == 12.0 && cimag(c12) == 6.0);
	OF_ENSURE(creal(c13) == 13.0 && cimag(c13) == 6.5);
	OF_ENSURE(creal(c14) == 14.0 && cimag(c14) == 7.0);
	OF_ENSURE(creal(c15) == 15.0 && cimag(c15) == 7.5);
	OF_ENSURE(creal(c16) == 16.0 && cimag(c16) == 8.0);

	return (c1 + c2 + c3 + c4 + c5 + c6 + c7 + c8 + c9 + c10 + c11 +
	    c12 + c13 + c14 + c15 + c16) / 16;
}
#endif

#ifdef __SIZEOF_INT128__
__extension__
- (__int128)invocationTestMethod7: (int)i1
				 : (__int128)i2
				 : (__int128)i3
				 : (__int128)i4
				 : (int)i5
				 : (__int128)i6
				 : (__int128)i7
				 : (__int128)i8
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					atIndex: i + 1];
	}

	complex double complexDoubleResult;
	TEST(@"-[invoke] #4", R([invocation invoke]) &&
	    R([invocation getReturnValue: &complexDoubleResult]) &&
	    complexDoubleResult == 8.5 + 4.25 * I)








































# endif

# ifdef __SIZEOF_INT128__
	/* -[invoke] #5 */
	selector = @selector(invocationTestMethod6::::::::::::::::);
	invocation = [OFInvocation invocationWithMethodSignature:
	    [self methodSignatureForSelector: selector]];

	[invocation setArgument: &self
			atIndex: 0];
	[invocation setArgument: &selector
			atIndex: 1];







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					atIndex: i + 1];
	}

	complex double complexDoubleResult;
	TEST(@"-[invoke] #4", R([invocation invoke]) &&
	    R([invocation getReturnValue: &complexDoubleResult]) &&
	    complexDoubleResult == 8.5 + 4.25 * I)

	/* Only when encoding complex long doubles is supported */
	if (strcmp(@encode(complex double),
	    @encode(complex long double)) != 0) {
		/* -[invoke] #5 */
		selector = @selector(invocationTestMethod6::::::::::::::::);
		invocation = [OFInvocation invocationWithMethodSignature:
		    [self methodSignatureForSelector: selector]];

		[invocation setArgument: &self
				atIndex: 0];
		[invocation setArgument: &selector
				atIndex: 1];

		for (int i = 1; i <= 16; i++) {
			complex double cd = i + 0.5 * i * I;
			complex float cf = i + 0.5 * i * I;
			complex long double cld = i + 0.5 * i * I;

			switch (i % 3) {
			case 0:
				[invocation setArgument: &cld
						atIndex: i + 1];
				break;
			case 1:
				[invocation setArgument: &cd
						atIndex: i + 1];
				break;
			case 2:
				[invocation setArgument: &cf
						atIndex: i + 1];
				break;
			}
		}

		complex long double complexLongDoubleResult;
		TEST(@"-[invoke] #5", R([invocation invoke]) &&
		    R([invocation getReturnValue: &complexLongDoubleResult]) &&
		    complexLongDoubleResult == 8.5 + 4.25 * I)
	}
# endif

# ifdef __SIZEOF_INT128__
	/* -[invoke] #6 */
	selector = @selector(invocationTestMethod7::::::::::::::::);
	invocation = [OFInvocation invocationWithMethodSignature:
	    [self methodSignatureForSelector: selector]];

	[invocation setArgument: &self
			atIndex: 0];
	[invocation setArgument: &selector
			atIndex: 1];
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					atIndex: i + 1];
		else
			[invocation setArgument: &i128
					atIndex: i + 1];
	}

	__extension__ __int128 int128Result;
	TEST(@"-[invoke] #5", R([invocation invoke]) &&
	    R([invocation getReturnValue: &int128Result]) &&
	    int128Result == __extension__ ((__int128)0xFFFFFFFFFFFFFFFF << 64) +
	    8)
# endif
#endif

	[pool drain];
}
@end







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					atIndex: i + 1];
		else
			[invocation setArgument: &i128
					atIndex: i + 1];
	}

	__extension__ __int128 int128Result;
	TEST(@"-[invoke] #6", R([invocation invoke]) &&
	    R([invocation getReturnValue: &int128Result]) &&
	    int128Result == __extension__ ((__int128)0xFFFFFFFFFFFFFFFF << 64) +
	    8)
# endif
#endif

	[pool drain];
}
@end