Attachment #430914 for bug #578394

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#include "libgcc.h"

#ifdef CONFIG_64BIT
DWtype __ashlti3(DWtype u, word_type b)
#else
DWtype __ashldi3(DWtype u, word_type b)
#endif
{
	DWunion uu, w;
	word_type bm;

		return u;

	uu.ll = u;
	bm = BITS_PER_LONG - b;

	if (bm <= 0) {
		w.s.low = 0;
		w.s.high = (unsigned long) uu.s.low << -bm;
	} else {
		const unsigned long carries = (unsigned long) uu.s.low >> bm;

		w.s.low = (unsigned long) uu.s.low << b;
		w.s.high = ((unsigned long) uu.s.high << b) | carries;
	}

	return w.ll;
}
#ifdef CONFIG_64BIT
EXPORT_SYMBOL(__ashlti3);
#else
EXPORT_SYMBOL(__ashldi3);
#endif





#include "libgcc.h"

#ifdef CONFIG_64BIT
DWtype __ashrti3(DWtype u, word_type b)
#else
DWtype __ashrdi3(DWtype u, word_type b)
#endif
{
	DWunion uu, w;
	word_type bm;

		return u;

	uu.ll = u;
	bm = BITS_PER_LONG - b;

	if (bm <= 0) {
		/* w.s.high = 1..1 or 0..0 */
		w.s.high =
		    uu.s.high >> (BITS_PER_LONG - 1);
		w.s.low = uu.s.high >> -bm;
	} else {
		const unsigned long carries = (unsigned long) uu.s.high << bm;

		w.s.high = uu.s.high >> b;
		w.s.low = ((unsigned long) uu.s.low >> b) | carries;
	}

	return w.ll;
}
#ifdef CONFIG_64BIT
EXPORT_SYMBOL(__ashrti3);
#else
EXPORT_SYMBOL(__ashrdi3);
#endif





typedef int word_type __attribute__ ((mode (__word__)));

#ifdef CONFIG_64BIT
typedef int DWtype __attribute__((mode(TI)));
#else
typedef long long DWtype;
#endif

#ifdef __BIG_ENDIAN
struct DWstruct {
	long high, low;
};
#elif defined(__LITTLE_ENDIAN)
struct DWstruct {
	long low, high;
};
#else
#error I feel sick.


typedef union {
	struct DWstruct s;
	DWtype ll;
} DWunion;

#endif /* __ASM_LIBGCC_H */

Return to bug 578394

Lines 2-8 Link Here

(-)a/arch/mips/lib/ashldi3.c (-7 / +14 lines)
2		2
3	#include "libgcc.h"	3	#include "libgcc.h"
4		4
5	long long __ashldi3(long long u, word_type b)	5	#ifdef CONFIG_64BIT
		6	DWtype __ashlti3(DWtype u, word_type b)
		7	#else
		8	DWtype __ashldi3(DWtype u, word_type b)
		9	#endif
6	{	10	{
7	DWunion uu, w;	11	DWunion uu, w;
8	word_type bm;	12	word_type bm;
Lines 11-29 long long __ashldi3(long long u, word_ty Link Here
11	return u;	15	return u;
12		16
13	uu.ll = u;	17	uu.ll = u;
14	bm = 32 - b;	18	bm = BITS_PER_LONG - b;
15		19
16	if (bm <= 0) {	20	if (bm <= 0) {
17	w.s.low = 0;	21	w.s.low = 0;
18	w.s.high = (unsigned int) uu.s.low << -bm;	22	w.s.high = (unsigned long) uu.s.low << -bm;
19	} else {	23	} else {
20	const unsigned int carries = (unsigned int) uu.s.low >> bm;	24	const unsigned long carries = (unsigned long) uu.s.low >> bm;
21		25
22	w.s.low = (unsigned int) uu.s.low << b;	26	w.s.low = (unsigned long) uu.s.low << b;
23	w.s.high = ((unsigned int) uu.s.high << b) \| carries;	27	w.s.high = ((unsigned long) uu.s.high << b) \| carries;
24	}	28	}
25		29
26	return w.ll;	30	return w.ll;
27	}	31	}
28		32	#ifdef CONFIG_64BIT
		33	EXPORT_SYMBOL(__ashlti3);
		34	#else
29	EXPORT_SYMBOL(__ashldi3);	35	EXPORT_SYMBOL(__ashldi3);
		36	#endif

Lines 2-8 Link Here

(-)a/arch/mips/lib/ashrdi3.c (-6 / +13 lines)
2		2
3	#include "libgcc.h"	3	#include "libgcc.h"
4		4
5	long long __ashrdi3(long long u, word_type b)	5	#ifdef CONFIG_64BIT
		6	DWtype __ashrti3(DWtype u, word_type b)
		7	#else
		8	DWtype __ashrdi3(DWtype u, word_type b)
		9	#endif
6	{	10	{
7	DWunion uu, w;	11	DWunion uu, w;
8	word_type bm;	12	word_type bm;
Lines 11-31 long long __ashrdi3(long long u, word_ty Link Here
11	return u;	15	return u;
12		16
13	uu.ll = u;	17	uu.ll = u;
14	bm = 32 - b;	18	bm = BITS_PER_LONG - b;
15		19
16	if (bm <= 0) {	20	if (bm <= 0) {
17	/* w.s.high = 1..1 or 0..0 */	21	/* w.s.high = 1..1 or 0..0 */
18	w.s.high =	22	w.s.high =
19	uu.s.high >> 31;	23	uu.s.high >> (BITS_PER_LONG - 1);
20	w.s.low = uu.s.high >> -bm;	24	w.s.low = uu.s.high >> -bm;
21	} else {	25	} else {
22	const unsigned int carries = (unsigned int) uu.s.high << bm;	26	const unsigned long carries = (unsigned long) uu.s.high << bm;
23		27
24	w.s.high = uu.s.high >> b;	28	w.s.high = uu.s.high >> b;
25	w.s.low = ((unsigned int) uu.s.low >> b) \| carries;	29	w.s.low = ((unsigned long) uu.s.low >> b) \| carries;
26	}	30	}
27		31
28	return w.ll;	32	return w.ll;
29	}	33	}
30		34	#ifdef CONFIG_64BIT
		35	EXPORT_SYMBOL(__ashrti3);
		36	#else
31	EXPORT_SYMBOL(__ashrdi3);	37	EXPORT_SYMBOL(__ashrdi3);
		38	#endif

Lines 5-17 Link Here

(-)a/arch/mips/lib/libgcc.h (-3 / +9 lines)
5		5
6	typedef int word_type __attribute__ ((mode (__word__)));	6	typedef int word_type __attribute__ ((mode (__word__)));
7		7
		8	#ifdef CONFIG_64BIT
		9	typedef int DWtype __attribute__((mode(TI)));
		10	#else
		11	typedef long long DWtype;
		12	#endif
		13
8	#ifdef __BIG_ENDIAN	14	#ifdef __BIG_ENDIAN
9	struct DWstruct {	15	struct DWstruct {
10	int high, low;	16	long high, low;
11	};	17	};
12	#elif defined(__LITTLE_ENDIAN)	18	#elif defined(__LITTLE_ENDIAN)
13	struct DWstruct {	19	struct DWstruct {
14	int low, high;	20	long low, high;
15	};	21	};
16	#else	22	#else
17	#error I feel sick.	23	#error I feel sick.
Lines 19-25 struct DWstruct { Link Here
19		25
20	typedef union {	26	typedef union {
21	struct DWstruct s;	27	struct DWstruct s;
22	long long ll;	28	DWtype ll;
23	} DWunion;	29	} DWunion;
24		30
25	#endif /* __ASM_LIBGCC_H */	31	#endif /* __ASM_LIBGCC_H */