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target-ppc: Altivec 2.07: Add Vector Count Leading Zeroes

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This patch adds the Vector Count Leading Zeroes instructions introduced
in Power ISA Version 2.07 - vclzb, vclzh, vclzw and vclzd.

Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Tom Musta 2014-02-12 15:23:03 -06:00 committed by Alexander Graf
parent 953f0f5842
commit f293f04ab5
3 changed files with 43 additions and 0 deletions
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5
target-ppc/helper.h
View File

@ -273,6 +273,11 @@ DEF_HELPER_4(vcfsx, void, env, avr, avr, i32)
DEF_HELPER_4(vctuxs, void, env, avr, avr, i32)
DEF_HELPER_4(vctsxs, void, env, avr, avr, i32)
DEF_HELPER_2(vclzb, void, avr, avr)
DEF_HELPER_2(vclzh, void, avr, avr)
DEF_HELPER_2(vclzw, void, avr, avr)
DEF_HELPER_2(vclzd, void, avr, avr)
DEF_HELPER_2(xsadddp, void, env, i32)
DEF_HELPER_2(xssubdp, void, env, i32)
DEF_HELPER_2(xsmuldp, void, env, i32)

29
target-ppc/int_helper.c
View File

@ -1524,6 +1524,35 @@ VUPK(lsh, s32, s16, UPKLO)
#undef UPKHI
#undef UPKLO
#define VGENERIC_DO(name, element) \
void helper_v##name(ppc_avr_t *r, ppc_avr_t *b) \
{ \
int i; \
\
VECTOR_FOR_INORDER_I(i, element) { \
r->element[i] = name(b->element[i]); \
} \
}
#define clzb(v) ((v) ? clz32((uint32_t)(v) << 24) : 8)
#define clzh(v) ((v) ? clz32((uint32_t)(v) << 16) : 16)
#define clzw(v) clz32((v))
#define clzd(v) clz64((v))
VGENERIC_DO(clzb, u8)
VGENERIC_DO(clzh, u16)
VGENERIC_DO(clzw, u32)
VGENERIC_DO(clzd, u64)
#undef clzb
#undef clzh
#undef clzw
#undef clzd
#undef VGENERIC_DO
#undef VECTOR_FOR_INORDER_I
#undef HI_IDX
#undef LO_IDX

9
target-ppc/translate.c
View File

@ -7283,6 +7283,10 @@ GEN_VAFORM_PAIRED(vmsumshm, vmsumshs, 20)
GEN_VAFORM_PAIRED(vsel, vperm, 21)
GEN_VAFORM_PAIRED(vmaddfp, vnmsubfp, 23)
GEN_VXFORM_NOA(vclzb, 1, 28)
GEN_VXFORM_NOA(vclzh, 1, 29)
GEN_VXFORM_NOA(vclzw, 1, 30)
GEN_VXFORM_NOA(vclzd, 1, 31)
/*** VSX extension ***/
static inline TCGv_i64 cpu_vsrh(int n)
@ -10504,6 +10508,11 @@ GEN_VAFORM_PAIRED(vmsumshm, vmsumshs, 20),
GEN_VAFORM_PAIRED(vsel, vperm, 21),
GEN_VAFORM_PAIRED(vmaddfp, vnmsubfp, 23),
GEN_VXFORM_207(vclzb, 1, 28),
GEN_VXFORM_207(vclzh, 1, 29),
GEN_VXFORM_207(vclzw, 1, 30),
GEN_VXFORM_207(vclzd, 1, 31),
GEN_HANDLER_E(lxsdx, 0x1F, 0x0C, 0x12, 0, PPC_NONE, PPC2_VSX),
GEN_HANDLER_E(lxsiwax, 0x1F, 0x0C, 0x02, 0, PPC_NONE, PPC2_VSX207),
GEN_HANDLER_E(lxsiwzx, 0x1F, 0x0C, 0x00, 0, PPC_NONE, PPC2_VSX207),