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Hexagon (target/hexagon) Add overrides for dealloc-return instructions

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These instructions perform a deallocframe+return (jumpr r31)

Add overrides for
    L4_return
    SL2_return
    L4_return_t
    L4_return_f
    L4_return_tnew_pt
    L4_return_fnew_pt
    L4_return_tnew_pnt
    L4_return_fnew_pnt
    SL2_return_t
    SL2_return_f
    SL2_return_tnew
    SL2_return_fnew

This patch eliminates the last helper that uses write_new_pc, so we
remove it from op_helper.c

Signed-off-by: Taylor Simpson <tsimpson@quicinc.com>
Reviewed-by: Anton Johansson <anjo@rev.ng>
Message-Id: <20230307025828.1612809-5-tsimpson@quicinc.com>
This commit is contained in:
Taylor Simpson 2023-03-06 18:58:18 -08:00
parent b8552a78a2
commit dae386b80f
3 changed files with 131 additions and 25 deletions
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26
target/hexagon/op_helper.c
View file

@ -1,5 +1,5 @@
/*
* Copyright(c) 2019-2022 Qualcomm Innovation Center, Inc. All Rights Reserved.
* Copyright(c) 2019-2023 Qualcomm Innovation Center, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@ -105,30 +105,6 @@ void log_store64(CPUHexagonState *env, target_ulong addr,
env->mem_log_stores[slot].data64 = val;
}
void write_new_pc(CPUHexagonState *env, bool pkt_has_multi_cof,
target_ulong addr)
{
HEX_DEBUG_LOG("write_new_pc(0x" TARGET_FMT_lx ")\n", addr);
if (pkt_has_multi_cof) {
/*
* If more than one branch is taken in a packet, only the first one
* is actually done.
*/
if (env->branch_taken) {
HEX_DEBUG_LOG("INFO: multiple branches taken in same packet, "
"ignoring the second one\n");
} else {
fCHECK_PCALIGN(addr);
env->gpr[HEX_REG_PC] = addr;
env->branch_taken = 1;
}
} else {
fCHECK_PCALIGN(addr);
env->gpr[HEX_REG_PC] = addr;
}
}
/* Handy place to set a breakpoint */
void HELPER(debug_start_packet)(CPUHexagonState *env)
{