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target-ppc: implement vnegw/d instructions

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Vector Integer Negate Instructions:

vnegw: Vector Negate Word
vnegd: Vector Negate Doubleword

Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Nikunj A Dadhania 2016-10-19 11:36:46 +05:30 committed by David Gibson
parent c6363bae17
commit cc8b6e76e3
4 changed files with 18 additions and 0 deletions
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2
target-ppc/helper.h
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@ -272,6 +272,8 @@ DEF_HELPER_2(vextsh2w, void, avr, avr)
DEF_HELPER_2(vextsb2d, void, avr, avr)
DEF_HELPER_2(vextsh2d, void, avr, avr)
DEF_HELPER_2(vextsw2d, void, avr, avr)
DEF_HELPER_2(vnegw, void, avr, avr)
DEF_HELPER_2(vnegd, void, avr, avr)
DEF_HELPER_2(vupkhpx, void, avr, avr)
DEF_HELPER_2(vupklpx, void, avr, avr)
DEF_HELPER_2(vupkhsb, void, avr, avr)

12
target-ppc/int_helper.c
View file

@ -1949,6 +1949,18 @@ VEXT_SIGNED(vextsh2d, s64, UINT16_MAX, int16_t, int64_t)
VEXT_SIGNED(vextsw2d, s64, UINT32_MAX, int32_t, int64_t)
#undef VEXT_SIGNED
#define VNEG(name, element) \
void helper_##name(ppc_avr_t *r, ppc_avr_t *b) \
{ \
int i; \
VECTOR_FOR_INORDER_I(i, element) { \
r->element[i] = -b->element[i]; \
} \
}
VNEG(vnegw, s32)
VNEG(vnegd, s64)
#undef VNEG
#define VSPLTI(suffix, element, splat_type) \
void helper_vspltis##suffix(ppc_avr_t *r, uint32_t splat) \
{ \

2
target-ppc/translate/vmx-impl.inc.c
View file

@ -815,6 +815,8 @@ GEN_VXFORM_NOA(vclzb, 1, 28)
GEN_VXFORM_NOA(vclzh, 1, 29)
GEN_VXFORM_NOA(vclzw, 1, 30)
GEN_VXFORM_NOA(vclzd, 1, 31)
GEN_VXFORM_NOA_2(vnegw, 1, 24, 6)
GEN_VXFORM_NOA_2(vnegd, 1, 24, 7)
GEN_VXFORM_NOA_2(vextsb2w, 1, 24, 16)
GEN_VXFORM_NOA_2(vextsh2w, 1, 24, 17)
GEN_VXFORM_NOA_2(vextsb2d, 1, 24, 24)

2
target-ppc/translate/vmx-ops.inc.c
View file

@ -215,6 +215,8 @@ GEN_VXFORM_DUAL_INV(vspltish, vinserth, 6, 13, 0x00000000, 0x100000,
GEN_VXFORM_DUAL_INV(vspltisw, vinsertw, 6, 14, 0x00000000, 0x100000,
PPC_ALTIVEC),
GEN_VXFORM_300_EXT(vinsertd, 6, 15, 0x100000),
GEN_VXFORM_300_EO(vnegw, 0x01, 0x18, 0x06),
GEN_VXFORM_300_EO(vnegd, 0x01, 0x18, 0x07),
GEN_VXFORM_300_EO(vextsb2w, 0x01, 0x18, 0x10),
GEN_VXFORM_300_EO(vextsh2w, 0x01, 0x18, 0x11),
GEN_VXFORM_300_EO(vextsb2d, 0x01, 0x18, 0x18),