This is always true for sparc64, so this is dead since 3a5f6805c7ca.
Signed-off-by: Richard Henderson <richard.hender...@linaro.org>
---
tcg/sparc64/tcg-target.c.inc | 57 ++++++++++++++----------------------
1 file changed, 22 insertions(+), 35 deletions(-)
diff --git a/tcg/sparc64/tcg-target.c.inc b/tcg/sparc64/tcg-target.c.inc
index 96d58f30b1..1ae9615ef0 100644
--- a/tcg/sparc64/tcg-target.c.inc
+++ b/tcg/sparc64/tcg-target.c.inc
@@ -92,7 +92,6 @@ static const char * const
tcg_target_reg_names[TCG_TARGET_NB_REGS] = {
#endif
#define TCG_REG_TB TCG_REG_I1
-#define USE_REG_TB (sizeof(void *) > 4)
static const int tcg_target_reg_alloc_order[] = {
TCG_REG_L0,
@@ -439,7 +438,7 @@ static void tcg_out_movi_int(TCGContext *s, TCGType type,
TCGReg ret,
}
/* A 13-bit constant relative to the TB. */
- if (!in_prologue && USE_REG_TB) {
+ if (!in_prologue) {
test = tcg_tbrel_diff(s, (void *)arg);
if (check_fit_ptr(test, 13)) {
tcg_out_arithi(s, ret, TCG_REG_TB, test, ARITH_ADD);
@@ -468,7 +467,7 @@ static void tcg_out_movi_int(TCGContext *s, TCGType type,
TCGReg ret,
}
/* Use the constant pool, if possible. */
- if (!in_prologue && USE_REG_TB) {
+ if (!in_prologue) {
new_pool_label(s, arg, R_SPARC_13, s->code_ptr,
tcg_tbrel_diff(s, NULL));
tcg_out32(s, LDX | INSN_RD(ret) | INSN_RS1(TCG_REG_TB));
@@ -1014,10 +1013,8 @@ static void tcg_target_qemu_prologue(TCGContext *s)
#endif
/* We choose TCG_REG_TB such that no move is required. */
- if (USE_REG_TB) {
- QEMU_BUILD_BUG_ON(TCG_REG_TB != TCG_REG_I1);
- tcg_regset_set_reg(s->reserved_regs, TCG_REG_TB);
- }
+ QEMU_BUILD_BUG_ON(TCG_REG_TB != TCG_REG_I1);
+ tcg_regset_set_reg(s->reserved_regs, TCG_REG_TB);
tcg_out_arithi(s, TCG_REG_G0, TCG_REG_I1, 0, JMPL);
/* delay slot */
@@ -1422,7 +1419,7 @@ static void tcg_out_exit_tb(TCGContext *s, uintptr_t a0)
tcg_out_arithi(s, TCG_REG_G0, TCG_REG_I7, 8, RETURN);
tcg_out_movi_imm13(s, TCG_REG_O0, a0);
return;
- } else if (USE_REG_TB) {
+ } else {
intptr_t tb_diff = tcg_tbrel_diff(s, (void *)a0);
if (check_fit_ptr(tb_diff, 13)) {
tcg_out_arithi(s, TCG_REG_G0, TCG_REG_I7, 8, RETURN);
@@ -1438,36 +1435,30 @@ static void tcg_out_exit_tb(TCGContext *s, uintptr_t a0)
static void tcg_out_goto_tb(TCGContext *s, int which)
{
+ int c;
+
/* Direct jump. */
- if (USE_REG_TB) {
- /* make sure the patch is 8-byte aligned. */
- if ((intptr_t)s->code_ptr & 4) {
- tcg_out_nop(s);
- }
- set_jmp_insn_offset(s, which);
- tcg_out_sethi(s, TCG_REG_T1, 0);
- tcg_out_arithi(s, TCG_REG_T1, TCG_REG_T1, 0, ARITH_OR);
- tcg_out_arith(s, TCG_REG_G0, TCG_REG_TB, TCG_REG_T1, JMPL);
- tcg_out_arith(s, TCG_REG_TB, TCG_REG_TB, TCG_REG_T1, ARITH_ADD);
- } else {
- set_jmp_insn_offset(s, which);
- tcg_out32(s, CALL);
+ /* make sure the patch is 8-byte aligned. */
+ if ((intptr_t)s->code_ptr & 4) {
tcg_out_nop(s);
}
+ set_jmp_insn_offset(s, which);
+ tcg_out_sethi(s, TCG_REG_T1, 0);
+ tcg_out_arithi(s, TCG_REG_T1, TCG_REG_T1, 0, ARITH_OR);
+ tcg_out_arith(s, TCG_REG_G0, TCG_REG_TB, TCG_REG_T1, JMPL);
+ tcg_out_arith(s, TCG_REG_TB, TCG_REG_TB, TCG_REG_T1, ARITH_ADD);
set_jmp_reset_offset(s, which);
/*
* For the unlinked path of goto_tb, we need to reset TCG_REG_TB
* to the beginning of this TB.
*/
- if (USE_REG_TB) {
- int c = -tcg_current_code_size(s);
- if (check_fit_i32(c, 13)) {
- tcg_out_arithi(s, TCG_REG_TB, TCG_REG_TB, c, ARITH_ADD);
- } else {
- tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_T1, c);
- tcg_out_arith(s, TCG_REG_TB, TCG_REG_TB, TCG_REG_T1, ARITH_ADD);
- }
+ c = -tcg_current_code_size(s);
+ if (check_fit_i32(c, 13)) {
+ tcg_out_arithi(s, TCG_REG_TB, TCG_REG_TB, c, ARITH_ADD);
+ } else {
+ tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_T1, c);
+ tcg_out_arith(s, TCG_REG_TB, TCG_REG_TB, TCG_REG_T1, ARITH_ADD);
}
}
@@ -1487,11 +1478,7 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
switch (opc) {
case INDEX_op_goto_ptr:
tcg_out_arithi(s, TCG_REG_G0, a0, 0, JMPL);
- if (USE_REG_TB) {
- tcg_out_mov_delay(s, TCG_REG_TB, a0);
- } else {
- tcg_out_nop(s);
- }
+ tcg_out_mov_delay(s, TCG_REG_TB, a0);
break;
case INDEX_op_br:
tcg_out_bpcc(s, COND_A, BPCC_PT, arg_label(a0));
@@ -1897,7 +1884,7 @@ void tb_target_set_jmp_target(const TranslationBlock *tb,
int n,
tcg_debug_assert(tb_disp == (int32_t)tb_disp);
tcg_debug_assert(br_disp == (int32_t)br_disp);
- if (!USE_REG_TB) {
+ if (0) {
qatomic_set((uint32_t *)jmp_rw,
deposit32(CALL, 0, 30, br_disp >> 2));
flush_idcache_range(jmp_rx, jmp_rw, 4);
--
2.34.1
