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tcg: Remove gen_intermediate_code_pc

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It is no longer used, so tidy up everything reached by it.
This includes the gen_opc_* arrays, the search_pc parameter
and the inline gen_intermediate_code_internal functions.

Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Richard Henderson 2015-09-01 20:01:40 -07:00
parent fca8a500d5
commit 4e5e121515
22 changed files with 90 additions and 736 deletions
Download patch file Download diff file Expand all files Collapse all files

54
target-arm/translate.c
View file

@ -52,7 +52,6 @@
#define ARCH(x) do { if (!ENABLE_ARCH_##x) goto illegal_op; } while(0)
#include "translate.h"
static uint32_t gen_opc_condexec_bits[OPC_BUF_SIZE];
#if defined(CONFIG_USER_ONLY)
#define IS_USER(s) 1
@ -11168,16 +11167,12 @@ undef:
}
/* generate intermediate code in gen_opc_buf and gen_opparam_buf for
basic block 'tb'. If search_pc is TRUE, also generate PC
information for each intermediate instruction. */
static inline void gen_intermediate_code_internal(ARMCPU *cpu,
TranslationBlock *tb,
bool search_pc)
basic block 'tb'. */
void gen_intermediate_code(CPUARMState *env, TranslationBlock *tb)
{
ARMCPU *cpu = arm_env_get_cpu(env);
CPUState *cs = CPU(cpu);
CPUARMState *env = &cpu->env;
DisasContext dc1, *dc = &dc1;
int j, lj;
target_ulong pc_start;
target_ulong next_page_start;
int num_insns;
@ -11189,7 +11184,7 @@ static inline void gen_intermediate_code_internal(ARMCPU *cpu,
* the A32/T32 complexity to do with conditional execution/IT blocks/etc.
*/
if (ARM_TBFLAG_AARCH64_STATE(tb->flags)) {
gen_intermediate_code_internal_a64(cpu, tb, search_pc);
gen_intermediate_code_a64(cpu, tb);
return;
}
@ -11255,7 +11250,6 @@ static inline void gen_intermediate_code_internal(ARMCPU *cpu,
/* FIXME: cpu_M0 can probably be the same as cpu_V0. */
cpu_M0 = tcg_temp_new_i64();
next_page_start = (pc_start & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE;
lj = -1;
num_insns = 0;
max_insns = tb->cflags & CF_COUNT_MASK;
if (max_insns == 0) {
@ -11289,10 +11283,9 @@ static inline void gen_intermediate_code_internal(ARMCPU *cpu,
* (3) if we leave the TB unexpectedly (eg a data abort on a load)
* then the CPUARMState will be wrong and we need to reset it.
* This is handled in the same way as restoration of the
* PC in these situations: we will be called again with search_pc=1
* and generate a mapping of the condexec bits for each PC in
* gen_opc_condexec_bits[]. restore_state_to_opc() then uses
* this to restore the condexec bits.
* PC in these situations; we save the value of the condexec bits
* for each PC via tcg_gen_insn_start(), and restore_state_to_opc()
* then uses this to restore them after an exception.
*
* Note that there are no instructions which can read the condexec
* bits, and none which can write non-static values to them, so
@ -11309,18 +11302,6 @@ static inline void gen_intermediate_code_internal(ARMCPU *cpu,
store_cpu_field(tmp, condexec_bits);
}
do {
if (search_pc) {
j = tcg_op_buf_count();
if (lj < j) {
lj++;
while (lj < j)
tcg_ctx.gen_opc_instr_start[lj++] = 0;
}
tcg_ctx.gen_opc_pc[lj] = dc->pc;
gen_opc_condexec_bits[lj] = (dc->condexec_cond << 4) | (dc->condexec_mask >> 1);
tcg_ctx.gen_opc_instr_start[lj] = 1;
tcg_ctx.gen_opc_icount[lj] = num_insns;
}
tcg_gen_insn_start(dc->pc,
(dc->condexec_cond << 4) | (dc->condexec_mask >> 1));
num_insns++;
@ -11537,25 +11518,8 @@ done_generating:
qemu_log("\n");
}
#endif
if (search_pc) {
j = tcg_op_buf_count();
lj++;
while (lj <= j)
tcg_ctx.gen_opc_instr_start[lj++] = 0;
} else {
tb->size = dc->pc - pc_start;
tb->icount = num_insns;
}
}
void gen_intermediate_code(CPUARMState *env, TranslationBlock *tb)
{
gen_intermediate_code_internal(arm_env_get_cpu(env), tb, false);
}
void gen_intermediate_code_pc(CPUARMState *env, TranslationBlock *tb)
{
gen_intermediate_code_internal(arm_env_get_cpu(env), tb, true);
tb->size = dc->pc - pc_start;
tb->icount = num_insns;
}
static const char *cpu_mode_names[16] = {