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target/arm: Drop copies in gen_sve_{ldr,str} 

Since we now get TEMP_TB temporaries by default, we no longer
need to make copies across these loops.  These were the only
uses of new_tmp_a64_local(), so remove that as well.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2023-01-29 14:39:06 -10:00
parent e2e641fa3d
commit 78817d3b9f
3 changed files with 0 additions and 39 deletions
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6
target/arm/tcg/translate-a64.c
View File

@ -436,12 +436,6 @@ TCGv_i64 new_tmp_a64(DisasContext *s)
return s->tmp_a64[s->tmp_a64_count++] = tcg_temp_new_i64();
}
TCGv_i64 new_tmp_a64_local(DisasContext *s)
{
assert(s->tmp_a64_count < TMP_A64_MAX);
return s->tmp_a64[s->tmp_a64_count++] = tcg_temp_local_new_i64();
}
TCGv_i64 new_tmp_a64_zero(DisasContext *s)
{
TCGv_i64 t = new_tmp_a64(s);

1
target/arm/tcg/translate-a64.h
View File

@ -19,7 +19,6 @@
#define TARGET_ARM_TRANSLATE_A64_H
TCGv_i64 new_tmp_a64(DisasContext *s);
TCGv_i64 new_tmp_a64_local(DisasContext *s);
TCGv_i64 new_tmp_a64_zero(DisasContext *s);
TCGv_i64 cpu_reg(DisasContext *s, int reg);
TCGv_i64 cpu_reg_sp(DisasContext *s, int reg);

32
target/arm/tcg/translate-sve.c
View File

@ -4344,17 +4344,6 @@ void gen_sve_ldr(DisasContext *s, TCGv_ptr base, int vofs,
TCGLabel *loop = gen_new_label();
TCGv_ptr tp, i = tcg_const_local_ptr(0);
/* Copy the clean address into a local temp, live across the loop. */
t0 = clean_addr;
clean_addr = new_tmp_a64_local(s);
tcg_gen_mov_i64(clean_addr, t0);
if (base != cpu_env) {
TCGv_ptr b = tcg_temp_local_new_ptr();
tcg_gen_mov_ptr(b, base);
base = b;
}
gen_set_label(loop);
t0 = tcg_temp_new_i64();
@ -4370,11 +4359,6 @@ void gen_sve_ldr(DisasContext *s, TCGv_ptr base, int vofs,
tcg_gen_brcondi_ptr(TCG_COND_LTU, i, len_align, loop);
tcg_temp_free_ptr(i);
if (base != cpu_env) {
tcg_temp_free_ptr(base);
assert(len_remain == 0);
}
}
/*
@ -4445,17 +4429,6 @@ void gen_sve_str(DisasContext *s, TCGv_ptr base, int vofs,
TCGLabel *loop = gen_new_label();
TCGv_ptr tp, i = tcg_const_local_ptr(0);
/* Copy the clean address into a local temp, live across the loop. */
t0 = clean_addr;
clean_addr = new_tmp_a64_local(s);
tcg_gen_mov_i64(clean_addr, t0);
if (base != cpu_env) {
TCGv_ptr b = tcg_temp_local_new_ptr();
tcg_gen_mov_ptr(b, base);
base = b;
}
gen_set_label(loop);
t0 = tcg_temp_new_i64();
@ -4471,11 +4444,6 @@ void gen_sve_str(DisasContext *s, TCGv_ptr base, int vofs,
tcg_gen_brcondi_ptr(TCG_COND_LTU, i, len_align, loop);
tcg_temp_free_ptr(i);
if (base != cpu_env) {
tcg_temp_free_ptr(base);
assert(len_remain == 0);
}
}
/* Predicate register stores can be any multiple of 2. */