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-rw-r--r--target/hexagon/decode.c15
-rwxr-xr-xtarget/hexagon/gen_helper_funcs.py5
-rwxr-xr-xtarget/hexagon/gen_helper_protos.py8
-rwxr-xr-xtarget/hexagon/gen_tcg_funcs.py5
-rwxr-xr-xtarget/hexagon/hex_common.py3
-rw-r--r--target/hexagon/insn.h1
-rw-r--r--target/hexagon/macros.h2
-rw-r--r--target/hexagon/op_helper.c24
-rw-r--r--target/hexagon/translate.c4
9 files changed, 51 insertions, 16 deletions
diff --git a/target/hexagon/decode.c b/target/hexagon/decode.c
index 6b73b5c..041c8de 100644
--- a/target/hexagon/decode.c
+++ b/target/hexagon/decode.c
@@ -388,6 +388,7 @@ static void decode_set_insn_attr_fields(Packet *pkt)
uint16_t opcode;
pkt->pkt_has_cof = false;
+ pkt->pkt_has_multi_cof = false;
pkt->pkt_has_endloop = false;
pkt->pkt_has_dczeroa = false;
@@ -412,13 +413,23 @@ static void decode_set_insn_attr_fields(Packet *pkt)
}
}
- pkt->pkt_has_cof |= decode_opcode_can_jump(opcode);
+ if (decode_opcode_can_jump(opcode)) {
+ if (pkt->pkt_has_cof) {
+ pkt->pkt_has_multi_cof = true;
+ }
+ pkt->pkt_has_cof = true;
+ }
pkt->insn[i].is_endloop = decode_opcode_ends_loop(opcode);
pkt->pkt_has_endloop |= pkt->insn[i].is_endloop;
- pkt->pkt_has_cof |= pkt->pkt_has_endloop;
+ if (pkt->pkt_has_endloop) {
+ if (pkt->pkt_has_cof) {
+ pkt->pkt_has_multi_cof = true;
+ }
+ pkt->pkt_has_cof = true;
+ }
}
}
diff --git a/target/hexagon/gen_helper_funcs.py b/target/hexagon/gen_helper_funcs.py
index a446c45..c4fc609 100755
--- a/target/hexagon/gen_helper_funcs.py
+++ b/target/hexagon/gen_helper_funcs.py
@@ -1,7 +1,7 @@
#!/usr/bin/env python3
##
-## Copyright(c) 2019-2021 Qualcomm Innovation Center, Inc. All Rights Reserved.
+## Copyright(c) 2019-2022 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
@@ -238,6 +238,9 @@ def gen_helper_function(f, tag, tagregs, tagimms):
gen_helper_arg_imm(f,immlett)
i += 1
+ if (hex_common.need_pkt_has_multi_cof(tag)):
+ f.write(", uint32_t pkt_has_multi_cof")
+
if hex_common.need_slot(tag):
if i > 0: f.write(", ")
f.write("uint32_t slot")
diff --git a/target/hexagon/gen_helper_protos.py b/target/hexagon/gen_helper_protos.py
index 3b4e993..8c6b36d 100755
--- a/target/hexagon/gen_helper_protos.py
+++ b/target/hexagon/gen_helper_protos.py
@@ -1,7 +1,7 @@
#!/usr/bin/env python3
##
-## Copyright(c) 2019-2021 Qualcomm Innovation Center, Inc. All Rights Reserved.
+## Copyright(c) 2019-2022 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
@@ -82,6 +82,7 @@ def gen_helper_prototype(f, tag, tagregs, tagimms):
## Figure out how many arguments the helper will take
if (numscalarresults == 0):
def_helper_size = len(regs)+len(imms)+numscalarreadwrite+1
+ if hex_common.need_pkt_has_multi_cof(tag): def_helper_size += 1
if hex_common.need_part1(tag): def_helper_size += 1
if hex_common.need_slot(tag): def_helper_size += 1
f.write('DEF_HELPER_%s(%s' % (def_helper_size, tag))
@@ -89,6 +90,7 @@ def gen_helper_prototype(f, tag, tagregs, tagimms):
f.write(', void' )
else:
def_helper_size = len(regs)+len(imms)+numscalarreadwrite
+ if hex_common.need_pkt_has_multi_cof(tag): def_helper_size += 1
if hex_common.need_part1(tag): def_helper_size += 1
if hex_common.need_slot(tag): def_helper_size += 1
f.write('DEF_HELPER_%s(%s' % (def_helper_size, tag))
@@ -126,7 +128,9 @@ def gen_helper_prototype(f, tag, tagregs, tagimms):
for immlett,bits,immshift in imms:
f.write(", s32")
- ## Add the arguments for the instruction slot and part1 (if needed)
+ ## Add the arguments for the instruction pkt_has_multi_cof, slot and
+ ## part1 (if needed)
+ if hex_common.need_pkt_has_multi_cof(tag): f.write(', i32')
if hex_common.need_slot(tag): f.write(', i32' )
if hex_common.need_part1(tag): f.write(' , i32' )
f.write(')\n')
diff --git a/target/hexagon/gen_tcg_funcs.py b/target/hexagon/gen_tcg_funcs.py
index ca5fde9..bd199dc 100755
--- a/target/hexagon/gen_tcg_funcs.py
+++ b/target/hexagon/gen_tcg_funcs.py
@@ -622,6 +622,9 @@ def gen_tcg_func(f, tag, regs, imms):
## Generate the call to the helper
for immlett,bits,immshift in imms:
gen_helper_decl_imm(f,immlett)
+ if hex_common.need_pkt_has_multi_cof(tag):
+ f.write(" TCGv pkt_has_multi_cof = ")
+ f.write("tcg_constant_tl(ctx->pkt->pkt_has_multi_cof);\n")
if hex_common.need_part1(tag):
f.write(" TCGv part1 = tcg_constant_tl(insn->part1);\n")
if hex_common.need_slot(tag):
@@ -654,6 +657,8 @@ def gen_tcg_func(f, tag, regs, imms):
for immlett,bits,immshift in imms:
gen_helper_call_imm(f,immlett)
+ if hex_common.need_pkt_has_multi_cof(tag):
+ f.write(", pkt_has_multi_cof")
if hex_common.need_slot(tag): f.write(", slot")
if hex_common.need_part1(tag): f.write(", part1" )
f.write(");\n")
diff --git a/target/hexagon/hex_common.py b/target/hexagon/hex_common.py
index d9ba7df..f5b5850 100755
--- a/target/hexagon/hex_common.py
+++ b/target/hexagon/hex_common.py
@@ -207,6 +207,9 @@ def need_part1(tag):
def need_ea(tag):
return re.compile(r"\bEA\b").search(semdict[tag])
+def need_pkt_has_multi_cof(tag):
+ return 'A_COF' in attribdict[tag]
+
def skip_qemu_helper(tag):
return tag in overrides.keys()
diff --git a/target/hexagon/insn.h b/target/hexagon/insn.h
index cb92586..775c4c1 100644
--- a/target/hexagon/insn.h
+++ b/target/hexagon/insn.h
@@ -57,6 +57,7 @@ struct Packet {
/* Pre-decodes about COF */
bool pkt_has_cof; /* Has any change-of-flow */
+ bool pkt_has_multi_cof; /* Has more than one change-of-flow */
bool pkt_has_endloop;
bool pkt_has_dczeroa;
diff --git a/target/hexagon/macros.h b/target/hexagon/macros.h
index 93ee473..8fd8123 100644
--- a/target/hexagon/macros.h
+++ b/target/hexagon/macros.h
@@ -407,7 +407,7 @@ static inline TCGv gen_read_ireg(TCGv result, TCGv val, int shift)
#define fCHECK_PCALIGN(A)
-#define fWRITE_NPC(A) write_new_pc(env, A)
+#define fWRITE_NPC(A) write_new_pc(env, pkt_has_multi_cof != 0, A)
#define fBRANCH(LOC, TYPE) fWRITE_NPC(LOC)
#define fJUMPR(REGNO, TARGET, TYPE) fBRANCH(TARGET, COF_TYPE_JUMPR)
diff --git a/target/hexagon/op_helper.c b/target/hexagon/op_helper.c
index 085afc3..84391e2 100644
--- a/target/hexagon/op_helper.c
+++ b/target/hexagon/op_helper.c
@@ -104,20 +104,26 @@ static void log_store64(CPUHexagonState *env, target_ulong addr,
env->mem_log_stores[slot].data64 = val;
}
-static void write_new_pc(CPUHexagonState *env, target_ulong addr)
+static 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 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");
+ 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->next_PC = addr;
+ env->branch_taken = 1;
+ }
} else {
fCHECK_PCALIGN(addr);
- env->branch_taken = 1;
env->next_PC = addr;
}
}
diff --git a/target/hexagon/translate.c b/target/hexagon/translate.c
index 0940d0f..1d872d7 100644
--- a/target/hexagon/translate.c
+++ b/target/hexagon/translate.c
@@ -248,7 +248,9 @@ static void gen_start_packet(DisasContext *ctx)
tcg_gen_movi_tl(hex_slot_cancelled, 0);
}
if (pkt->pkt_has_cof) {
- tcg_gen_movi_tl(hex_branch_taken, 0);
+ if (pkt->pkt_has_multi_cof) {
+ tcg_gen_movi_tl(hex_branch_taken, 0);
+ }
tcg_gen_movi_tl(hex_next_PC, next_PC);
}
if (need_pred_written(pkt)) {
generated by cgit v1.1 at 2024-12-30 20:01:34 +0000