Commit 01fe9a47 authored by Rajalakshmi Srinivasaraghavan's avatar Rajalakshmi Srinivasaraghavan Committed by David Gibson
Browse files

target-ppc: add vector bit permute doubleword instruction 



Add vbpermd instruction from ISA 3.0.

Signed-off-by: default avatarRajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com>
Signed-off-by: default avatarDavid Gibson <david@gibson.dropbear.id.au>
parent a5ad8fbf

target-ppc/helper.h

+1 −0
Original line number Diff line number Diff line
@@ -333,6 +333,7 @@ DEF_HELPER_2(vpopcntb, void, avr, avr) 
DEF_HELPER_2(vpopcnth, void, avr, avr)

DEF_HELPER_2(vpopcntw, void, avr, avr)

DEF_HELPER_2(vpopcntd, void, avr, avr)

DEF_HELPER_3(vbpermd, void, avr, avr, avr)

DEF_HELPER_3(vbpermq, void, avr, avr, avr)

DEF_HELPER_2(vgbbd, void, avr, avr)

DEF_HELPER_3(vpmsumb, void, avr, avr, avr)

target-ppc/int_helper.c

+20 −0
Original line number Diff line number Diff line
@@ -1128,12 +1128,32 @@ void helper_vperm(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, 


#if defined(HOST_WORDS_BIGENDIAN)

#define VBPERMQ_INDEX(avr, i) ((avr)->u8[(i)])

#define VBPERMD_INDEX(i) (i)

#define VBPERMQ_DW(index) (((index) & 0x40) != 0)

#define EXTRACT_BIT(avr, i, index) (extract64((avr)->u64[i], index, 1))

#else

#define VBPERMQ_INDEX(avr, i) ((avr)->u8[15-(i)])

#define VBPERMD_INDEX(i) (1 - i)

#define VBPERMQ_DW(index) (((index) & 0x40) == 0)

#define EXTRACT_BIT(avr, i, index) \

        (extract64((avr)->u64[1 - i], 63 - index, 1))

#endif



void helper_vbpermd(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)

{

    int i, j;

    ppc_avr_t result = { .u64 = { 0, 0 } };

    VECTOR_FOR_INORDER_I(i, u64) {

        for (j = 0; j < 8; j++) {

            int index = VBPERMQ_INDEX(b, (i * 8) + j);

            if (index < 64 && EXTRACT_BIT(a, i, index)) {

                result.u64[VBPERMD_INDEX(i)] |= (0x80 >> j);

            }

        }

    }

    *r = result;

}



void helper_vbpermq(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)

{

    int i;

target-ppc/translate/vmx-impl.inc.c

+1 −0
Original line number Diff line number Diff line
@@ -792,6 +792,7 @@ GEN_VXFORM_DUAL(vclzw, PPC_NONE, PPC2_ALTIVEC_207, \ 
                vpopcntw, PPC_NONE, PPC2_ALTIVEC_207)

GEN_VXFORM_DUAL(vclzd, PPC_NONE, PPC2_ALTIVEC_207, \

                vpopcntd, PPC_NONE, PPC2_ALTIVEC_207)

GEN_VXFORM(vbpermd, 6, 23);

GEN_VXFORM(vbpermq, 6, 21);

GEN_VXFORM_NOA(vgbbd, 6, 20);

GEN_VXFORM(vpmsumb, 4, 16)

target-ppc/translate/vmx-ops.inc.c

+1 −0
Original line number Diff line number Diff line
@@ -261,6 +261,7 @@ GEN_VXFORM_DUAL(vclzh, vpopcnth, 1, 29, PPC_NONE, PPC2_ALTIVEC_207), 
GEN_VXFORM_DUAL(vclzw, vpopcntw, 1, 30, PPC_NONE, PPC2_ALTIVEC_207),

GEN_VXFORM_DUAL(vclzd, vpopcntd, 1, 31, PPC_NONE, PPC2_ALTIVEC_207),



GEN_VXFORM_300(vbpermd, 6, 23),

GEN_VXFORM_207(vbpermq, 6, 21),

GEN_VXFORM_207(vgbbd, 6, 20),

GEN_VXFORM_207(vpmsumb, 4, 16),