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2019-05-14 Przemyslaw Wirkus <przemyslaw.wirkus@arm.com\>

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gcc/
	* internal-fn.def (SIGNBIT): New.
	* config/aarch64/aarch64-simd.md (signbitv2sf2): New expand
	defined.
	(signbitv4sf2): Likewise.

gcc/testsuite/
	* gcc.target/aarch64/signbitv4sf.c: New test.
	* gcc.target/aarch64/signbitv2sf.c: New test.

From-SVN: r271149
This commit is contained in:
Przemyslaw Wirkus 2019-05-14 08:07:56 +00:00 • committed by Richard Sandiford
parent 4dbf3a15f1
commit a52cf5cf27
6 changed files with 106 additions and 0 deletions
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7
gcc/ChangeLog
View file

@ -1,3 +1,10 @@
2019-05-14 Przemyslaw Wirkus <przemyslaw.wirkus@arm.com\>
* internal-fn.def (SIGNBIT): New.
* config/aarch64/aarch64-simd.md (signbitv2sf2): New expand
defined.
(signbitv4sf2): Likewise.
2019-05-14 Chenghua Xu <paul.hua.gm@gmail.com>
PR target/90357

15
gcc/config/aarch64/aarch64-simd.md
View file

@ -935,6 +935,21 @@
[(set_attr "type" "neon_ins<q>")]
)
(define_expand "signbit<mode>2"
[(use (match_operand:<V_INT_EQUIV> 0 "register_operand"))
(use (match_operand:VDQSF 1 "register_operand"))]
"TARGET_SIMD"
{
int shift_amount = GET_MODE_UNIT_BITSIZE (<V_INT_EQUIV>mode) - 1;
rtx shift_vector = aarch64_simd_gen_const_vector_dup (<V_INT_EQUIV>mode,
shift_amount);
operands[1] = lowpart_subreg (<V_INT_EQUIV>mode, operands[1], <MODE>mode);
emit_insn (gen_aarch64_simd_lshr<v_int_equiv> (operands[0], operands[1],
shift_vector));
DONE;
})
(define_insn "aarch64_simd_lshr<mode>"
[(set (match_operand:VDQ_I 0 "register_operand" "=w")
(lshiftrt:VDQ_I (match_operand:VDQ_I 1 "register_operand" "w")

1
gcc/internal-fn.def
View file

@ -217,6 +217,7 @@ DEF_INTERNAL_FLT_FN (LOG10, ECF_CONST, log10, unary)
DEF_INTERNAL_FLT_FN (LOG1P, ECF_CONST, log1p, unary)
DEF_INTERNAL_FLT_FN (LOG2, ECF_CONST, log2, unary)
DEF_INTERNAL_FLT_FN (LOGB, ECF_CONST, logb, unary)
DEF_INTERNAL_FLT_FN (SIGNBIT, ECF_CONST, signbit, unary)
DEF_INTERNAL_FLT_FN (SIGNIFICAND, ECF_CONST, significand, unary)
DEF_INTERNAL_FLT_FN (SIN, ECF_CONST, sin, unary)
DEF_INTERNAL_FLT_FN (SINH, ECF_CONST, sinh, unary)

5
gcc/testsuite/ChangeLog
View file

@ -1,3 +1,8 @@
2019-05-14 Przemyslaw Wirkus <przemyslaw.wirkus@arm.com\>
* gcc.target/aarch64/signbitv4sf.c: New test.
* gcc.target/aarch64/signbitv2sf.c: New test.
2019-05-13 Jonathan Wakely <jwakely@redhat.com>
* g++.dg/cpp0x/Wattributes1.C: Adjust dg-error line number to fix

40
gcc/testsuite/gcc.target/aarch64/signbitv2sf.c Normal file
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@ -0,0 +1,40 @@
/* { dg-do run } */
/* { dg-additional-options "-O3 --save-temps" } */
extern void abort ();
#define N 8
float in[N] = {1.0, -1.0, -2.0, 3.0, -5.0, -8.0, 13.0, 21.0};
int out[N];
void
foo (int *i, float *f)
{
i[0] = __builtin_signbit (f[0]);
i[1] = __builtin_signbit (f[1]);
}
/* { dg-final { scan-assembler-not {-2147483648} } } */
/* { dg-final { scan-assembler {\tushr\tv[0-9]+.2s, v[0-9]+.2s, 31} } } */
int
main ()
{
int i;
foo (out, in);
foo (out + 2, in + 2);
foo (out + 4, in + 4);
foo (out + 6, in + 6);
for (i = 0; i < N; i++)
{
if (in[i] >= 0.0 && out[i])
abort ();
if (in[i] < 0.0 && !out[i])
abort ();
}
return 0;
}

38
gcc/testsuite/gcc.target/aarch64/signbitv4sf.c Normal file
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@ -0,0 +1,38 @@
/* { dg-do run } */
/* { dg-additional-options "-O3 --save-temps" } */
extern void abort ();
#define N 1024
float in[N] = {1.0, -1.0, -2.0, 3.0, -5.0, -8.0, 13.0, 21.0};
int out[N];
void
foo ()
{
int i;
for (i = 0; i < N; i++)
out[i] = __builtin_signbit (in[i]);
}
/* { dg-final { scan-assembler-not {-2147483648} } } */
/* { dg-final { scan-assembler {\tushr\tv[0-9]+.4s, v[0-9]+.4s, 31} } } */
int
main ()
{
int i;
foo ();
for (i = 0; i < N; i++)
{
if (in[i] >= 0.0 && out[i])
abort ();
if (in[i] < 0.0 && !out[i])
abort ();
}
return 0;
}