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[AArch64] Implement <su><maxmin>v2di3 pattern

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gcc/:
        PR target/63424
        * config/aarch64/aarch64-simd.md (<su><maxmin>v2di3): New.

gcc/testsuite/:
        PR target/63424
        * gcc.target/aarch64/pr63424.c: New test.

From-SVN: r217786
This commit is contained in:
Renlin Li 2014-11-19 16:34:38 +00:00 committed by Renlin Li
parent 2d302f47a0
commit da9c88d86d
4 changed files with 81 additions and 0 deletions
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5
gcc/ChangeLog
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@ -3,6 +3,11 @@
* config/rs6000/constraints.md: Avoid signed integer overflows.
* config/rs6000/predicates.md: Likewise.
2014-11-19 Renlin Li <Renlin.Li@arm.com>
PR target/63424
* config/aarch64/aarch64-simd.md (<su><maxmin>v2di3): New.
2014-11-19 Renlin Li <Renlin.Li@arm.com>
PR middle-end/63762

33
gcc/config/aarch64/aarch64-simd.md
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@ -953,6 +953,39 @@
[(set_attr "type" "neon_minmax<q>")]
)
(define_expand "<su><maxmin>v2di3"
[(set (match_operand:V2DI 0 "register_operand" "")
(MAXMIN:V2DI (match_operand:V2DI 1 "register_operand" "")
(match_operand:V2DI 2 "register_operand" "")))]
"TARGET_SIMD"
{
enum rtx_code cmp_operator;
rtx cmp_fmt;
switch (<CODE>)
{
case UMIN:
cmp_operator = LTU;
break;
case SMIN:
cmp_operator = LT;
break;
case UMAX:
cmp_operator = GTU;
break;
case SMAX:
cmp_operator = GT;
break;
default:
gcc_unreachable ();
}
cmp_fmt = gen_rtx_fmt_ee (cmp_operator, V2DImode, operands[1], operands[2]);
emit_insn (gen_aarch64_vcond_internalv2div2di (operands[0], operands[1],
operands[2], cmp_fmt, operands[1], operands[2]));
DONE;
})
;; vec_concat gives a new vector with the low elements from operand 1, and
;; the high elements from operand 2. That is to say, given op1 = { a, b }
;; op2 = { c, d }, vec_concat (op1, op2) = { a, b, c, d }.

4
gcc/testsuite/ChangeLog
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@ -1,3 +1,7 @@
2014-11-19 Renlin Li <Renlin.Li@arm.com>
PR target/63424
* gcc.target/aarch64/pr63424.c: New test.
2014-11-19 Renlin Li <Renlin.Li@arm.com>
PR middle-end/63762

39
gcc/testsuite/gcc.target/aarch64/pr63424.c Normal file
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@ -0,0 +1,39 @@
/* { dg-do compile } */
/* { dg-options "-O3" } */
#include <stdint.h>
uint32_t
truncate_int (const unsigned long long value)
{
if ( value < 0 )
{
return 0;
}
else if ( value > UINT32_MAX )
{
return UINT32_MAX;
}
else
return (uint32_t)value;
}
uint32_t
mul (const unsigned long long x, const unsigned long long y)
{
uint32_t value = truncate_int (x * y);
return value;
}
uint32_t *
test(unsigned size, uint32_t *a, uint32_t s)
{
unsigned i;
for (i = 0; i < size; i++)
{
a[i] = mul (a[i], s);
}
return a;
}