diff mbox series

[v5,18/30] tcg/riscv: Convert tcg_out_qemu_{ld,st}_slow_path

Message ID 20230506072235.597467-19-richard.henderson@linaro.org
State Superseded
Headers show
Series tcg: Simplify calls to load/store helpers | expand

Commit Message

Richard Henderson May 6, 2023, 7:22 a.m. UTC 
Use tcg_out_ld_helper_args, tcg_out_ld_helper_ret,
and tcg_out_st_helper_args.

Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 tcg/riscv/tcg-target.c.inc | 37 ++++++++++---------------------------
 1 file changed, 10 insertions(+), 27 deletions(-)

Comments

Alex Bennée May 10, 2023, 1:40 p.m. UTC | #1 
Richard Henderson <richard.henderson@linaro.org> writes:

> Use tcg_out_ld_helper_args, tcg_out_ld_helper_ret,
> and tcg_out_st_helper_args.
>
> Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
diff mbox series

Patch

diff --git a/tcg/riscv/tcg-target.c.inc b/tcg/riscv/tcg-target.c.inc
index 2b2d313fe2..c22d1e35ac 100644
--- a/tcg/riscv/tcg-target.c.inc
+++ b/tcg/riscv/tcg-target.c.inc
@@ -906,14 +906,14 @@  static void tcg_out_goto(TCGContext *s, const tcg_insn_unit *target)
     tcg_debug_assert(ok);
 }
 
+/* We have three temps, we might as well expose them. */
+static const TCGLdstHelperParam ldst_helper_param = {
+    .ntmp = 3, .tmp = { TCG_REG_TMP0, TCG_REG_TMP1, TCG_REG_TMP2 }
+};
+
 static bool tcg_out_qemu_ld_slow_path(TCGContext *s, TCGLabelQemuLdst *l)
 {
-    MemOpIdx oi = l->oi;
-    MemOp opc = get_memop(oi);
-    TCGReg a0 = tcg_target_call_iarg_regs[0];
-    TCGReg a1 = tcg_target_call_iarg_regs[1];
-    TCGReg a2 = tcg_target_call_iarg_regs[2];
-    TCGReg a3 = tcg_target_call_iarg_regs[3];
+    MemOp opc = get_memop(l->oi);
 
     /* resolve label address */
     if (!reloc_sbimm12(l->label_ptr[0], tcg_splitwx_to_rx(s->code_ptr))) {
@@ -921,13 +921,9 @@  static bool tcg_out_qemu_ld_slow_path(TCGContext *s, TCGLabelQemuLdst *l)
     }
 
     /* call load helper */
-    tcg_out_mov(s, TCG_TYPE_PTR, a0, TCG_AREG0);
-    tcg_out_mov(s, TCG_TYPE_PTR, a1, l->addrlo_reg);
-    tcg_out_movi(s, TCG_TYPE_PTR, a2, oi);
-    tcg_out_movi(s, TCG_TYPE_PTR, a3, (tcg_target_long)l->raddr);
-
+    tcg_out_ld_helper_args(s, l, &ldst_helper_param);
     tcg_out_call_int(s, qemu_ld_helpers[opc & MO_SSIZE], false);
-    tcg_out_mov(s, (opc & MO_SIZE) == MO_64, l->datalo_reg, a0);
+    tcg_out_ld_helper_ret(s, l, true, &ldst_helper_param);
 
     tcg_out_goto(s, l->raddr);
     return true;
@@ -935,14 +931,7 @@  static bool tcg_out_qemu_ld_slow_path(TCGContext *s, TCGLabelQemuLdst *l)
 
 static bool tcg_out_qemu_st_slow_path(TCGContext *s, TCGLabelQemuLdst *l)
 {
-    MemOpIdx oi = l->oi;
-    MemOp opc = get_memop(oi);
-    MemOp s_bits = opc & MO_SIZE;
-    TCGReg a0 = tcg_target_call_iarg_regs[0];
-    TCGReg a1 = tcg_target_call_iarg_regs[1];
-    TCGReg a2 = tcg_target_call_iarg_regs[2];
-    TCGReg a3 = tcg_target_call_iarg_regs[3];
-    TCGReg a4 = tcg_target_call_iarg_regs[4];
+    MemOp opc = get_memop(l->oi);
 
     /* resolve label address */
     if (!reloc_sbimm12(l->label_ptr[0], tcg_splitwx_to_rx(s->code_ptr))) {
@@ -950,13 +939,7 @@  static bool tcg_out_qemu_st_slow_path(TCGContext *s, TCGLabelQemuLdst *l)
     }
 
     /* call store helper */
-    tcg_out_mov(s, TCG_TYPE_PTR, a0, TCG_AREG0);
-    tcg_out_mov(s, TCG_TYPE_PTR, a1, l->addrlo_reg);
-    tcg_out_movext(s, s_bits == MO_64 ? TCG_TYPE_I64 : TCG_TYPE_I32, a2,
-                   l->type, s_bits, l->datalo_reg);
-    tcg_out_movi(s, TCG_TYPE_PTR, a3, oi);
-    tcg_out_movi(s, TCG_TYPE_PTR, a4, (tcg_target_long)l->raddr);
-
+    tcg_out_st_helper_args(s, l, &ldst_helper_param);
     tcg_out_call_int(s, qemu_st_helpers[opc & MO_SIZE], false);
 
     tcg_out_goto(s, l->raddr);