sim: bpf: remove negi, neg32i insns

The BPF virtual machine does not support neg instructions operating on
immediates, and these erroneous instructions were recently removed from
gas.  Remove them from the simulator as well.

diff --git a/sim/bpf/bpf-sim.c b/sim/bpf/bpf-sim.c
index 5e01ddeca9fa0642f6ef0b6f96f037e50beb784c..a4af22b2308bfc272e09848a4b17350face0a36f 100644 (file)
--- a/sim/bpf/bpf-sim.c
+++ b/sim/bpf/bpf-sim.c
@@ -730,10 +730,6 @@ execute (SIM_CPU *cpu, struct bpf_insn *insn)
       BPF_TRACE ("BPF_INSN_NEGR\n");
       bpf_regs[insn->dst] = - (int64_t) bpf_regs[insn->dst];
       break;
-    case BPF_INSN_NEGI:
-      BPF_TRACE ("BPF_INSN_NEGI\n");
-      bpf_regs[insn->dst] = - (int64_t) insn->imm32;
-      break;
     case BPF_INSN_LSHR:
       BPF_TRACE ("BPF_INSN_LSHR\n");
       bpf_regs[insn->dst] <<= bpf_regs[insn->src];
@@ -867,10 +863,6 @@ execute (SIM_CPU *cpu, struct bpf_insn *insn)
       BPF_TRACE ("BPF_INSN_NEG32R\n");
       bpf_regs[insn->dst] = (uint32_t) (- (int32_t) bpf_regs[insn->dst]);
       break;
-    case BPF_INSN_NEG32I:
-      BPF_TRACE ("BPF_INSN_NEG32I\n");
-      bpf_regs[insn->dst] = (uint32_t) - (int32_t) insn->imm32;
-      break;
     case BPF_INSN_LSH32R:
       BPF_TRACE ("BPF_INSN_LSH32R\n");
       bpf_regs[insn->dst] = (uint32_t) bpf_regs[insn->dst] << bpf_regs[insn->src];