diff options
Diffstat (limited to 'target-arm/translate.c')
| -rw-r--r-- | target-arm/translate.c | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/target-arm/translate.c b/target-arm/translate.c index 7124606723..41c3fc77b0 100644 --- a/target-arm/translate.c +++ b/target-arm/translate.c @@ -5977,7 +5977,7 @@ static int disas_neon_data_insn(CPUARMState * env, DisasContext *s, uint32_t ins {0, 0, 0, 9}, /* VQDMLSL */ {0, 0, 0, 0}, /* Integer VMULL */ {0, 0, 0, 1}, /* VQDMULL */ - {0, 0, 0, 15}, /* Polynomial VMULL */ + {0, 0, 0, 0xa}, /* Polynomial VMULL */ {0, 0, 0, 7}, /* Reserved: always UNDEF */ }; @@ -5996,6 +5996,30 @@ static int disas_neon_data_insn(CPUARMState * env, DisasContext *s, uint32_t ins return 1; } + /* Handle VMULL.P64 (Polynomial 64x64 to 128 bit multiply) + * outside the loop below as it only performs a single pass. + */ + if (op == 14 && size == 2) { + TCGv_i64 tcg_rn, tcg_rm, tcg_rd; + + if (!arm_feature(env, ARM_FEATURE_V8_PMULL)) { + return 1; + } + tcg_rn = tcg_temp_new_i64(); + tcg_rm = tcg_temp_new_i64(); + tcg_rd = tcg_temp_new_i64(); + neon_load_reg64(tcg_rn, rn); + neon_load_reg64(tcg_rm, rm); + gen_helper_neon_pmull_64_lo(tcg_rd, tcg_rn, tcg_rm); + neon_store_reg64(tcg_rd, rd); + gen_helper_neon_pmull_64_hi(tcg_rd, tcg_rn, tcg_rm); + neon_store_reg64(tcg_rd, rd + 1); + tcg_temp_free_i64(tcg_rn); + tcg_temp_free_i64(tcg_rm); + tcg_temp_free_i64(tcg_rd); + return 0; + } + /* Avoid overlapping operands. Wide source operands are always aligned so will never overlap with wide destinations in problematic ways. */ |