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rs6000.md (absdi2 define_split): Swap operands of MINUS.

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* rs6000/rs6000.md (absdi2 define_split): Swap operands of MINUS.
        * rs6000/rs6000.c (mask64_operand): Use HOST_BITS_PER_WIDE_INT.
        (print_operand, case 'B'): Don't fall through.
        (print_operand, case 'S'): Correct mask begin/end computation.
        Use HOST_BITS_PER_WIDE_INT.
        * rs6000/rs6000.h (CPP_PREDEFINES): Define _LONG_LONG.
        (CONDITIONAL_REGISTER_USAGE): GPR13 fixed if TARGET_64BIT.
        * rs6000/aix41.h (CPP_PREDEFINES): Same.
        * rs6000/aix43.h (CPP_PREDEFINES): Same.

From-SVN: r21474
This commit is contained in:
David Edelsohn 1998-07-29 19:35:05 +00:00 committed by David Edelsohn
parent 19f1bd3476
commit a238cd8bd1
6 changed files with 56 additions and 44 deletions
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12
gcc/ChangeLog
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@ -1,3 +1,15 @@
Wed Jul 29 22:18:14 1998 David Edelsohn <edelsohn@mhpcc.edu>
* rs6000/rs6000.md (absdi2 define_split): Swap operands of MINUS.
* rs6000/rs6000.c (mask64_operand): Use HOST_BITS_PER_WIDE_INT.
(print_operand, case 'B'): Don't fall through.
(print_operand, case 'S'): Correct mask begin/end computation.
Use HOST_BITS_PER_WIDE_INT.
* rs6000/rs6000.h (CPP_PREDEFINES): Define _LONG_LONG.
(CONDITIONAL_REGISTER_USAGE): GPR13 fixed if TARGET_64BIT.
* rs6000/aix41.h (CPP_PREDEFINES): Same.
* rs6000/aix43.h (CPP_PREDEFINES): Same.
Wed Jul 29 11:47:10 1998 Nick Clifton <nickc@cygnus.com>
* config/arm/thumb.md (extendqisi2_insn): Remove earlyclobber

2
gcc/config/rs6000/aix41.h
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@ -70,7 +70,7 @@ Boston, MA 02111-1307, USA. */
#undef CPP_PREDEFINES
#define CPP_PREDEFINES "-D_IBMR2 -D_POWER -D_AIX -D_AIX32 -D_AIX41 \
-Asystem(unix) -Asystem(aix)"
-D_LONG_LONG -Asystem(unix) -Asystem(aix)"
#undef CPP_SPEC
#define CPP_SPEC "%{posix: -D_POSIX_SOURCE}\

2
gcc/config/rs6000/aix43.h
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@ -92,7 +92,7 @@ do { \
#undef CPP_PREDEFINES
#define CPP_PREDEFINES "-D_IBMR2 -D_POWER -D_AIX -D_AIX32 -D_AIX41 -D_AIX43 \
-Asystem(unix) -Asystem(aix)"
-D_LONG_LONG -Asystem(unix) -Asystem(aix)"
#undef CPP_SPEC
#define CPP_SPEC "%{posix: -D_POSIX_SOURCE}\

77
gcc/config/rs6000/rs6000.c
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@ -938,7 +938,7 @@ mask64_operand (op, mode)
if (((c >>= 1) & 1) != last_bit_value)
last_bit_value ^= 1, transitions++;
#if HOST_BITS_PER_INT == 32
#if HOST_BITS_PER_WIDE_INT == 32
/* Consider CONST_INT sign-extended. */
transitions += (last_bit_value != 1);
#endif
@ -949,7 +949,7 @@ mask64_operand (op, mode)
&& (mode == VOIDmode || mode == DImode))
{
HOST_WIDE_INT low = CONST_DOUBLE_LOW (op);
#if HOST_BITS_PER_INT == 32
#if HOST_BITS_PER_WIDE_INT == 32
HOST_WIDE_INT high = CONST_DOUBLE_HIGH (op);
#endif
int i;
@ -957,12 +957,12 @@ mask64_operand (op, mode)
int transitions = 0;
if ((low == 0
#if HOST_BITS_PER_INT == 32
#if HOST_BITS_PER_WIDE_INT == 32
&& high == 0
#endif
)
|| (low == ~0
#if HOST_BITS_PER_INT == 32
#if HOST_BITS_PER_WIDE_INT == 32
&& high == ~0
#endif
))
@ -974,7 +974,7 @@ mask64_operand (op, mode)
if (((low >>= 1) & 1) != last_bit_value)
last_bit_value ^= 1, transitions++;
#if HOST_BITS_PER_INT == 32
#if HOST_BITS_PER_WIDE_INT == 32
if ((high & 1) != last_bit_value)
last_bit_value ^= 1, transitions++;
@ -2544,6 +2544,7 @@ print_operand (file, x, code)
/* If the low-order bit is zero, write 'r'; otherwise, write 'l'
for 64-bit mask direction. */
putc (((INT_LOWPART(x) & 1) == 0 ? 'r' : 'l'), file);
return;
case 'C':
/* This is an optional cror needed for LE or GE floating-point
@ -2824,58 +2825,54 @@ print_operand (file, x, code)
if (val & 1) /* Clear Left */
{
if (val == 1)
i = 0;
else
for (i = 1; i < HOST_BITS_PER_WIDE_INT; i++)
if (!((val >>= 1) & 1))
break;
for (i = 0; i < HOST_BITS_PER_WIDE_INT; i++)
if (!((val >>= 1) & 1))
break;
#if HOST_BITS_PER_INT == 32
if (GET_CODE (x) == CONST_DOUBLE && i == 32)
{
val = CONST_DOUBLE_HIGH (x);
#if HOST_BITS_PER_WIDE_INT == 32
if (GET_CODE (x) == CONST_DOUBLE && i == 32)
{
val = CONST_DOUBLE_HIGH (x);
if (val == 0)
--i;
else if (val == 1)
;
else
for (i = 33; i < 64; i++)
if (!((val >>= 1) & 1))
break;
}
if (val == 0)
--i;
else
for (i = 32; i < 64; i++)
if (!((val >>= 1) & 1))
break;
}
#endif
/* i = index of last set bit from right
mask begins at 63 - i from left */
if (i > 63)
output_operand_lossage ("%%S computed all 1's mask");
fprintf (file, "%d", 63 - i);
return;
}
else /* Clear Right */
{
val = (GET_CODE (x) == CONST_INT ? INTVAL (x) : CONST_DOUBLE_HIGH (x));
for (i = 0; i < HOST_BITS_PER_WIDE_INT; i++)
if ((val >>= 1) & 1)
break;
if (val == (-1 << (HOST_BITS_PER_WIDE_INT-1)))
i = 0;
else
for (i = 1; i < HOST_BITS_PER_WIDE_INT; i++)
if ((val <<= 1) < 0)
break;
#if HOST_BITS_PER_INT == 32
#if HOST_BITS_PER_WIDE_INT == 32
if (GET_CODE (x) == CONST_DOUBLE && i == 32)
{
val = CONST_DOUBLE_LOW (x);
val = CONST_DOUBLE_HIGH (x);
if (val == 0)
if (val == (HOST_WIDE_INT) -1)
--i;
else if (val == (-1 << (HOST_BITS_PER_WIDE_INT-1)))
;
else
for (i = 33; i < 64; i++)
if ((val <<= 1) < 0)
for (i = 32; i < 64; i++)
if ((val >>= 1) & 1)
break;
}
#endif
fprintf (file, "%d", i);
/* i = index of last clear bit from right
mask ends at 62 - i from left */
if (i > 62)
output_operand_lossage ("%%S computed all 0's mask");
fprintf (file, "%d", 62 - i);
return;
}

5
gcc/config/rs6000/rs6000.h
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@ -26,7 +26,7 @@ Boston, MA 02111-1307, USA. */
/* Names to predefine in the preprocessor for this target machine. */
#define CPP_PREDEFINES "-D_IBMR2 -D_POWER -D_AIX -D_AIX32 \
#define CPP_PREDEFINES "-D_IBMR2 -D_POWER -D_AIX -D_AIX32 -D_LONG_LONG \
-Asystem(unix) -Asystem(aix) -Acpu(rs6000) -Amachine(rs6000)"
/* Print subsidiary information on the compiler version in use. */
@ -841,12 +841,15 @@ extern int rs6000_debug_arg; /* debug argument handling */
/* Define this macro to change register usage conditional on target flags.
Set MQ register fixed (already call_used) if not POWER architecture
(RIOS1, RIOS2, RSC, and PPC601) so that it will not be allocated.
64-bit AIX reserves GPR13 for thread-private data.
Conditionally disable FPRs. */
#define CONDITIONAL_REGISTER_USAGE \
{ \
if (! TARGET_POWER) \
fixed_regs[64] = 1; \
if (TARGET_64BIT) \
fixed_regs[13] = call_used_regs[13] = 1; \
if (TARGET_SOFT_FLOAT) \
for (i = 32; i < 64; i++) \
fixed_regs[i] = call_used_regs[i] = 1; \

2
gcc/config/rs6000/rs6000.md
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@ -4496,7 +4496,7 @@
"TARGET_POWERPC64 && reload_completed"
[(set (match_dup 2) (ashiftrt:DI (match_dup 1) (const_int 63)))
(set (match_dup 0) (xor:DI (match_dup 2) (match_dup 1)))
(set (match_dup 0) (minus:DI (match_dup 2) (match_dup 0)))]
(set (match_dup 0) (minus:DI (match_dup 0) (match_dup 2)))]
"")
(define_insn ""