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Clean up unaligned access functions on alpha

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Checks for __GNUC__ are superfluous since the only other compiler for
the platform is Compaq C, and it doesn't support GCC style inline
assembly.

Signed-off-by: Matt Turner <mattst88@gmail.com>
This commit is contained in:
Matt Turner 2009-08-31 16:08:52 -04:00
parent e1fdd76713
commit 3718beb69c
1 changed files with 2 additions and 113 deletions
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115
hw/xfree86/common/compiler.h
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@ -215,159 +215,48 @@ extern unsigned short ldw_brx(volatile unsigned char *, int);
# ifdef __GNUC__
# ifdef __alpha__
/*
* inline functions to do unaligned accesses
* from linux/include/asm-alpha/unaligned.h
*/
/*
* EGCS 1.1 knows about arbitrary unaligned loads. Define some
* packed structures to talk about such things with.
*/
struct __una_u64 { unsigned long x __attribute__((packed)); };
struct __una_u32 { unsigned int x __attribute__((packed)); };
struct __una_u16 { unsigned short x __attribute__((packed)); };
/*
* Elemental unaligned loads
*/
/* let's try making these things static */
/* Elemental unaligned loads */
static __inline__ unsigned long ldq_u(unsigned long * r11)
{
# if defined(__GNUC__)
const struct __una_u64 *ptr = (const struct __una_u64 *) r11;
return ptr->x;
# else
unsigned long r1,r2;
__asm__("ldq_u %0,%3\n\t"
"ldq_u %1,%4\n\t"
"extql %0,%2,%0\n\t"
"extqh %1,%2,%1"
:"=&r" (r1), "=&r" (r2)
:"r" (r11),
"m" (*r11),
"m" (*(const unsigned long *)(7+(char *) r11)));
return r1 | r2;
# endif
}
static __inline__ unsigned long ldl_u(unsigned int * r11)
{
# if defined(__GNUC__)
const struct __una_u32 *ptr = (const struct __una_u32 *) r11;
return ptr->x;
# else
unsigned long r1,r2;
__asm__("ldq_u %0,%3\n\t"
"ldq_u %1,%4\n\t"
"extll %0,%2,%0\n\t"
"extlh %1,%2,%1"
:"=&r" (r1), "=&r" (r2)
:"r" (r11),
"m" (*r11),
"m" (*(const unsigned long *)(3+(char *) r11)));
return r1 | r2;
# endif
}
static __inline__ unsigned long ldw_u(unsigned short * r11)
{
# if defined(__GNUC__)
const struct __una_u16 *ptr = (const struct __una_u16 *) r11;
return ptr->x;
# else
unsigned long r1,r2;
__asm__("ldq_u %0,%3\n\t"
"ldq_u %1,%4\n\t"
"extwl %0,%2,%0\n\t"
"extwh %1,%2,%1"
:"=&r" (r1), "=&r" (r2)
:"r" (r11),
"m" (*r11),
"m" (*(const unsigned long *)(1+(char *) r11)));
return r1 | r2;
# endif
}
/*
* Elemental unaligned stores
*/
/* Elemental unaligned stores */
static __inline__ void stq_u(unsigned long r5, unsigned long * r11)
{
# if defined(__GNUC__)
struct __una_u64 *ptr = (struct __una_u64 *) r11;
ptr->x = r5;
# else
unsigned long r1,r2,r3,r4;
__asm__("ldq_u %3,%1\n\t"
"ldq_u %2,%0\n\t"
"insqh %6,%7,%5\n\t"
"insql %6,%7,%4\n\t"
"mskqh %3,%7,%3\n\t"
"mskql %2,%7,%2\n\t"
"bis %3,%5,%3\n\t"
"bis %2,%4,%2\n\t"
"stq_u %3,%1\n\t"
"stq_u %2,%0"
:"=m" (*r11),
"=m" (*(unsigned long *)(7+(char *) r11)),
"=&r" (r1), "=&r" (r2), "=&r" (r3), "=&r" (r4)
:"r" (r5), "r" (r11));
# endif
}
static __inline__ void stl_u(unsigned long r5, unsigned int * r11)
{
# if defined(__GNUC__)
struct __una_u32 *ptr = (struct __una_u32 *) r11;
ptr->x = r5;
# else
unsigned long r1,r2,r3,r4;
__asm__("ldq_u %3,%1\n\t"
"ldq_u %2,%0\n\t"
"inslh %6,%7,%5\n\t"
"insll %6,%7,%4\n\t"
"msklh %3,%7,%3\n\t"
"mskll %2,%7,%2\n\t"
"bis %3,%5,%3\n\t"
"bis %2,%4,%2\n\t"
"stq_u %3,%1\n\t"
"stq_u %2,%0"
:"=m" (*r11),
"=m" (*(unsigned long *)(3+(char *) r11)),
"=&r" (r1), "=&r" (r2), "=&r" (r3), "=&r" (r4)
:"r" (r5), "r" (r11));
# endif
}
static __inline__ void stw_u(unsigned long r5, unsigned short * r11)
{
# if defined(__GNUC__)
struct __una_u16 *ptr = (struct __una_u16 *) r11;
ptr->x = r5;
# else
unsigned long r1,r2,r3,r4;
__asm__("ldq_u %3,%1\n\t"
"ldq_u %2,%0\n\t"
"inswh %6,%7,%5\n\t"
"inswl %6,%7,%4\n\t"
"mskwh %3,%7,%3\n\t"
"mskwl %2,%7,%2\n\t"
"bis %3,%5,%3\n\t"
"bis %2,%4,%2\n\t"
"stq_u %3,%1\n\t"
"stq_u %2,%0"
:"=m" (*r11),
"=m" (*(unsigned long *)(1+(char *) r11)),
"=&r" (r1), "=&r" (r2), "=&r" (r3), "=&r" (r4)
:"r" (r5), "r" (r11));
# endif
}
# elif defined __amd64__