tcg: Introduce tcg_out_movext

This is common code in most qemu_{ld,st} slow paths, extending the
input value for the store helper data argument or extending the
return value from the load helper.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

1 files changed, 2 insertions, 6 deletions

diff --git a/tcg/aarch64/tcg-target.c.inc b/tcg/aarch64/tcg-target.c.inc
index bd1fab1..29bc97e 100644
--- a/tcg/aarch64/tcg-target.c.inc
+++ b/tcg/aarch64/tcg-target.c.inc
@@ -1620,7 +1620,6 @@ static bool tcg_out_qemu_ld_slow_path(TCGContext *s, TCGLabelQemuLdst *lb)
 {
     MemOpIdx oi = lb->oi;
     MemOp opc = get_memop(oi);
-    MemOp size = opc & MO_SIZE;
 
     if (!reloc_pc19(lb->label_ptr[0], tcg_splitwx_to_rx(s->code_ptr))) {
         return false;
@@ -1631,12 +1630,9 @@ static bool tcg_out_qemu_ld_slow_path(TCGContext *s, TCGLabelQemuLdst *lb)
     tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_X2, oi);
     tcg_out_adr(s, TCG_REG_X3, lb->raddr);
     tcg_out_call_int(s, qemu_ld_helpers[opc & MO_SIZE]);
-    if (opc & MO_SIGN) {
-        tcg_out_sxt(s, lb->type, size, lb->datalo_reg, TCG_REG_X0);
-    } else {
-        tcg_out_mov(s, size == MO_64, lb->datalo_reg, TCG_REG_X0);
-    }
 
+    tcg_out_movext(s, lb->type, lb->datalo_reg,
+                   TCG_TYPE_REG, opc & MO_SSIZE, TCG_REG_X0);
     tcg_out_goto(s, lb->raddr);
     return true;
 }