tcg: Split out tcg_out_ext32u

We will need a backend interface for performing 32-bit zero-extend.
Use it in tcg_reg_alloc_op in the meantime.

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

11 files changed, 54 insertions, 25 deletions

diff --git a/tcg/aarch64/tcg-target.c.inc b/tcg/aarch64/tcg-target.c.inc
index d7964734c3..bca5f03dfb 100644
--- a/tcg/aarch64/tcg-target.c.inc
+++ b/tcg/aarch64/tcg-target.c.inc
@@ -1452,6 +1452,11 @@ static void tcg_out_ext16u(TCGContext *s, TCGReg rd, TCGReg rn)
     tcg_out_uxt(s, MO_16, rd, rn);
 }
 
+static void tcg_out_ext32u(TCGContext *s, TCGReg rd, TCGReg rn)
+{
+    tcg_out_movr(s, TCG_TYPE_I32, rd, rn);
+}
+
 static void tcg_out_addsubi(TCGContext *s, int ext, TCGReg rd,
                             TCGReg rn, int64_t aimm)
 {
@@ -2259,8 +2264,7 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
         tcg_out_sxt(s, TCG_TYPE_I64, MO_32, a0, a1);
         break;
     case INDEX_op_extu_i32_i64:
-    case INDEX_op_ext32u_i64:
-        tcg_out_movr(s, TCG_TYPE_I32, a0, a1);
+        tcg_out_ext32u(s, a0, a1);
         break;
 
     case INDEX_op_deposit_i64:
@@ -2327,6 +2331,7 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
     case INDEX_op_ext16u_i64:
     case INDEX_op_ext16u_i32:
     case INDEX_op_ext32s_i64:
+    case INDEX_op_ext32u_i64:
     default:
         g_assert_not_reached();
     }
diff --git a/tcg/arm/tcg-target.c.inc b/tcg/arm/tcg-target.c.inc
index 401769bdd6..5c48b92f83 100644
--- a/tcg/arm/tcg-target.c.inc
+++ b/tcg/arm/tcg-target.c.inc
@@ -998,6 +998,11 @@ static void tcg_out_ext32s(TCGContext *s, TCGReg rd, TCGReg rn)
     g_assert_not_reached();
 }
 
+static void tcg_out_ext32u(TCGContext *s, TCGReg rd, TCGReg rn)
+{
+    g_assert_not_reached();
+}
+
 static void tcg_out_bswap16(TCGContext *s, ARMCond cond,
                             TCGReg rd, TCGReg rn, int flags)
 {
diff --git a/tcg/i386/tcg-target.c.inc b/tcg/i386/tcg-target.c.inc
index f4ac877aba..7d63403693 100644
--- a/tcg/i386/tcg-target.c.inc
+++ b/tcg/i386/tcg-target.c.inc
@@ -1287,7 +1287,7 @@ static void tcg_out_ext16s(TCGContext *s, TCGType type, TCGReg dest, TCGReg src)
     tcg_out_modrm(s, OPC_MOVSWL + rexw, dest, src);
 }
 
-static inline void tcg_out_ext32u(TCGContext *s, int dest, int src)
+static void tcg_out_ext32u(TCGContext *s, TCGReg dest, TCGReg src)
 {
     /* 32-bit mov zero extends.  */
     tcg_out_modrm(s, OPC_MOVL_GvEv, dest, src);
@@ -2754,7 +2754,6 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc,
         tcg_out_bswap64(s, a0);
         break;
     case INDEX_op_extu_i32_i64:
-    case INDEX_op_ext32u_i64:
     case INDEX_op_extrl_i64_i32:
         tcg_out_ext32u(s, a0, a1);
         break;
@@ -2838,6 +2837,7 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc,
     case INDEX_op_ext16u_i32:
     case INDEX_op_ext16u_i64:
     case INDEX_op_ext32s_i64:
+    case INDEX_op_ext32u_i64:
     default:
         g_assert_not_reached();
     }
diff --git a/tcg/loongarch64/tcg-target.c.inc b/tcg/loongarch64/tcg-target.c.inc
index 037474510c..d2511eda7a 100644
--- a/tcg/loongarch64/tcg-target.c.inc
+++ b/tcg/loongarch64/tcg-target.c.inc
@@ -1246,7 +1246,6 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
         tcg_out_brcond(s, a2, a0, a1, arg_label(args[3]));
         break;
 
-    case INDEX_op_ext32u_i64:
     case INDEX_op_extu_i32_i64:
         tcg_out_ext32u(s, a0, a1);
         break;
@@ -1615,6 +1614,7 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
     case INDEX_op_ext16u_i32:
     case INDEX_op_ext16u_i64:
     case INDEX_op_ext32s_i64:
+    case INDEX_op_ext32u_i64:
     default:
         g_assert_not_reached();
     }
diff --git a/tcg/mips/tcg-target.c.inc b/tcg/mips/tcg-target.c.inc
index c57ccb6b3d..fe90547c43 100644
--- a/tcg/mips/tcg-target.c.inc
+++ b/tcg/mips/tcg-target.c.inc
@@ -663,6 +663,7 @@ static void tcg_out_bswap64(TCGContext *s, TCGReg ret, TCGReg arg)
 
 static void tcg_out_ext32u(TCGContext *s, TCGReg ret, TCGReg arg)
 {
+    tcg_debug_assert(TCG_TARGET_REG_BITS == 64);
     if (use_mips32r2_instructions) {
         tcg_out_opc_bf(s, OPC_DEXT, ret, arg, 31, 0);
     } else {
@@ -2297,7 +2298,6 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
     case INDEX_op_extrl_i64_i32:
         tcg_out_ext32s(s, a0, a1);
         break;
-    case INDEX_op_ext32u_i64:
     case INDEX_op_extu_i32_i64:
         tcg_out_ext32u(s, a0, a1);
         break;
@@ -2446,6 +2446,7 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
     case INDEX_op_ext16s_i32:
     case INDEX_op_ext16s_i64:
     case INDEX_op_ext32s_i64:
+    case INDEX_op_ext32u_i64:
     default:
         g_assert_not_reached();
     }
diff --git a/tcg/ppc/tcg-target.c.inc b/tcg/ppc/tcg-target.c.inc
index 0814894099..55d4524947 100644
--- a/tcg/ppc/tcg-target.c.inc
+++ b/tcg/ppc/tcg-target.c.inc
@@ -801,8 +801,9 @@ static void tcg_out_ext32s(TCGContext *s, TCGReg dst, TCGReg src)
     tcg_out32(s, EXTSW | RA(dst) | RS(src));
 }
 
-static inline void tcg_out_ext32u(TCGContext *s, TCGReg dst, TCGReg src)
+static void tcg_out_ext32u(TCGContext *s, TCGReg dst, TCGReg src)
 {
+    tcg_debug_assert(TCG_TARGET_REG_BITS == 64);
     tcg_out_rld(s, RLDICL, dst, src, 0, 32);
 }
 
@@ -3131,6 +3132,7 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
     case INDEX_op_ext16u_i32:
     case INDEX_op_ext16u_i64:
     case INDEX_op_ext32s_i64:
+    case INDEX_op_ext32u_i64:
     default:
         g_assert_not_reached();
     }
diff --git a/tcg/riscv/tcg-target.c.inc b/tcg/riscv/tcg-target.c.inc
index 9381e113aa..1d91fd19c6 100644
--- a/tcg/riscv/tcg-target.c.inc
+++ b/tcg/riscv/tcg-target.c.inc
@@ -1597,7 +1597,6 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
         tcg_out_qemu_st(s, args, true);
         break;
 
-    case INDEX_op_ext32u_i64:
     case INDEX_op_extu_i32_i64:
         tcg_out_ext32u(s, a0, a1);
         break;
@@ -1639,6 +1638,7 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
     case INDEX_op_ext16u_i32:
     case INDEX_op_ext16u_i64:
     case INDEX_op_ext32s_i64:
+    case INDEX_op_ext32u_i64:
     default:
         g_assert_not_reached();
     }
diff --git a/tcg/s390x/tcg-target.c.inc b/tcg/s390x/tcg-target.c.inc
index 9aff45cbfd..825dbfc523 100644
--- a/tcg/s390x/tcg-target.c.inc
+++ b/tcg/s390x/tcg-target.c.inc
@@ -1117,7 +1117,7 @@ static void tcg_out_ext32s(TCGContext *s, TCGReg dest, TCGReg src)
     tcg_out_insn(s, RRE, LGFR, dest, src);
 }
 
-static inline void tgen_ext32u(TCGContext *s, TCGReg dest, TCGReg src)
+static void tcg_out_ext32u(TCGContext *s, TCGReg dest, TCGReg src)
 {
     tcg_out_insn(s, RRE, LLGFR, dest, src);
 }
@@ -1149,7 +1149,7 @@ static void tgen_andi(TCGContext *s, TCGType type, TCGReg dest, uint64_t val)
 
     /* Look for the zero-extensions.  */
     if ((val & valid) == 0xffffffff) {
-        tgen_ext32u(s, dest, dest);
+        tcg_out_ext32u(s, dest, dest);
         return;
     }
     if ((val & valid) == 0xff) {
@@ -1440,7 +1440,7 @@ static void tgen_ctpop(TCGContext *s, TCGType type, TCGReg dest, TCGReg src)
     /* With MIE3, and bit 0 of m4 set, we get the complete result. */
     if (HAVE_FACILITY(MISC_INSN_EXT3)) {
         if (type == TCG_TYPE_I32) {
-            tgen_ext32u(s, dest, src);
+            tcg_out_ext32u(s, dest, src);
             src = dest;
         }
         tcg_out_insn(s, RRFc, POPCNT, dest, src, 8);
@@ -1618,7 +1618,7 @@ static void tcg_out_qemu_ld_direct(TCGContext *s, MemOp opc, TCGReg data,
     case MO_UL | MO_BSWAP:
         /* swapped unsigned int load with upper bits zeroed */
         tcg_out_insn(s, RXY, LRV, data, base, index, disp);
-        tgen_ext32u(s, data, data);
+        tcg_out_ext32u(s, data, data);
         break;
     case MO_UL:
         tcg_out_insn(s, RXY, LLGF, data, base, index, disp);
@@ -1743,7 +1743,7 @@ static TCGReg tcg_out_tlb_read(TCGContext *s, TCGReg addr_reg, MemOp opc,
                  offsetof(CPUTLBEntry, addend));
 
     if (TARGET_LONG_BITS == 32) {
-        tgen_ext32u(s, TCG_REG_R3, addr_reg);
+        tcg_out_ext32u(s, TCG_REG_R3, addr_reg);
         return TCG_REG_R3;
     }
     return addr_reg;
@@ -1812,7 +1812,7 @@ static bool tcg_out_qemu_st_slow_path(TCGContext *s, TCGLabelQemuLdst *lb)
         tcg_out_ext16u(s, TCG_REG_R4, data_reg);
         break;
     case MO_UL:
-        tgen_ext32u(s, TCG_REG_R4, data_reg);
+        tcg_out_ext32u(s, TCG_REG_R4, data_reg);
         break;
     case MO_UQ:
         tcg_out_mov(s, TCG_TYPE_I64, TCG_REG_R4, data_reg);
@@ -1879,7 +1879,7 @@ static void tcg_prepare_user_ldst(TCGContext *s, TCGReg *addr_reg,
                                   TCGReg *index_reg, tcg_target_long *disp)
 {
     if (TARGET_LONG_BITS == 32) {
-        tgen_ext32u(s, TCG_TMP0, *addr_reg);
+        tcg_out_ext32u(s, TCG_TMP0, *addr_reg);
         *addr_reg = TCG_TMP0;
     }
     if (guest_base < 0x80000) {
@@ -2261,7 +2261,7 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc,
         if (a2 & TCG_BSWAP_OS) {
             tcg_out_ext32s(s, a0, a0);
         } else if ((a2 & (TCG_BSWAP_IZ | TCG_BSWAP_OZ)) == TCG_BSWAP_OZ) {
-            tgen_ext32u(s, a0, a0);
+            tcg_out_ext32u(s, a0, a0);
         }
         break;
 
@@ -2528,8 +2528,7 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc,
         tcg_out_ext32s(s, args[0], args[1]);
         break;
     case INDEX_op_extu_i32_i64:
-    case INDEX_op_ext32u_i64:
-        tgen_ext32u(s, args[0], args[1]);
+        tcg_out_ext32u(s, args[0], args[1]);
         break;
 
     case INDEX_op_add2_i64:
@@ -2627,6 +2626,7 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc,
     case INDEX_op_ext16u_i32:
     case INDEX_op_ext16u_i64:
     case INDEX_op_ext32s_i64:
+    case INDEX_op_ext32u_i64:
     default:
         g_assert_not_reached();
     }
diff --git a/tcg/sparc64/tcg-target.c.inc b/tcg/sparc64/tcg-target.c.inc
index fef19493d0..6464d1fb5e 100644
--- a/tcg/sparc64/tcg-target.c.inc
+++ b/tcg/sparc64/tcg-target.c.inc
@@ -522,6 +522,11 @@ static void tcg_out_ext32s(TCGContext *s, TCGReg rd, TCGReg rs)
     tcg_out_arithi(s, rd, rs, 0, SHIFT_SRA);
 }
 
+static void tcg_out_ext32u(TCGContext *s, TCGReg rd, TCGReg rs)
+{
+    tcg_out_arithi(s, rd, rs, 0, SHIFT_SRL);
+}
+
 static void tcg_out_addi_ptr(TCGContext *s, TCGReg rd, TCGReg rs,
                              tcg_target_long imm)
 {
@@ -910,7 +915,7 @@ static void emit_extend(TCGContext *s, TCGReg r, int op)
         tcg_out_ext16u(s, r, r);
         break;
     case MO_32:
-        tcg_out_arith(s, r, r, 0, SHIFT_SRL);
+        tcg_out_ext32u(s, r, r);
         break;
     case MO_64:
         break;
@@ -1134,7 +1139,7 @@ static TCGReg tcg_out_tlb_load(TCGContext *s, TCGReg addr, int mem_index,
 
     /* If the guest address must be zero-extended, do so now.  */
     if (TARGET_LONG_BITS == 32) {
-        tcg_out_arithi(s, r0, addr, 0, SHIFT_SRL);
+        tcg_out_ext32u(s, r0, addr);
         return r0;
     }
     return addr;
@@ -1231,7 +1236,7 @@ static void tcg_out_qemu_ld(TCGContext *s, TCGReg data, TCGReg addr,
     unsigned t_bits;
 
     if (TARGET_LONG_BITS == 32) {
-        tcg_out_arithi(s, TCG_REG_T1, addr, 0, SHIFT_SRL);
+        tcg_out_ext32u(s, TCG_REG_T1, addr);
         addr = TCG_REG_T1;
     }
 
@@ -1363,7 +1368,7 @@ static void tcg_out_qemu_st(TCGContext *s, TCGReg data, TCGReg addr,
     unsigned t_bits;
 
     if (TARGET_LONG_BITS == 32) {
-        tcg_out_arithi(s, TCG_REG_T1, addr, 0, SHIFT_SRL);
+        tcg_out_ext32u(s, TCG_REG_T1, addr);
         addr = TCG_REG_T1;
     }
 
@@ -1676,8 +1681,7 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
         tcg_out_ext32s(s, a0, a1);
         break;
     case INDEX_op_extu_i32_i64:
-    case INDEX_op_ext32u_i64:
-        tcg_out_arithi(s, a0, a1, 0, SHIFT_SRL);
+        tcg_out_ext32u(s, a0, a1);
         break;
     case INDEX_op_extrl_i64_i32:
         tcg_out_mov(s, TCG_TYPE_I32, a0, a1);
@@ -1733,6 +1737,7 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
     case INDEX_op_ext16u_i32:
     case INDEX_op_ext16u_i64:
     case INDEX_op_ext32s_i64:
+    case INDEX_op_ext32u_i64:
     default:
         g_assert_not_reached();
     }
diff --git a/tcg/tcg.c b/tcg/tcg.c
index 84aa8d639e..a182771c01 100644
--- a/tcg/tcg.c
+++ b/tcg/tcg.c
@@ -110,6 +110,7 @@ static void tcg_out_ext16s(TCGContext *s, TCGType type, TCGReg ret, TCGReg arg);
 static void tcg_out_ext8u(TCGContext *s, TCGReg ret, TCGReg arg);
 static void tcg_out_ext16u(TCGContext *s, TCGReg ret, TCGReg arg);
 static void tcg_out_ext32s(TCGContext *s, TCGReg ret, TCGReg arg);
+static void tcg_out_ext32u(TCGContext *s, TCGReg ret, TCGReg arg);
 static void tcg_out_addi_ptr(TCGContext *s, TCGReg, TCGReg, tcg_target_long);
 static void tcg_out_exit_tb(TCGContext *s, uintptr_t arg);
 static void tcg_out_goto_tb(TCGContext *s, int which);
@@ -4525,6 +4526,9 @@ static void tcg_reg_alloc_op(TCGContext *s, const TCGOp *op)
     case INDEX_op_ext32s_i64:
         tcg_out_ext32s(s, new_args[0], new_args[1]);
         break;
+    case INDEX_op_ext32u_i64:
+        tcg_out_ext32u(s, new_args[0], new_args[1]);
+        break;
     default:
         if (def->flags & TCG_OPF_VECTOR) {
             tcg_out_vec_op(s, op->opc, TCGOP_VECL(op), TCGOP_VECE(op),
diff --git a/tcg/tci/tcg-target.c.inc b/tcg/tci/tcg-target.c.inc
index 04e162a623..bc7b5a410c 100644
--- a/tcg/tci/tcg-target.c.inc
+++ b/tcg/tci/tcg-target.c.inc
@@ -622,6 +622,13 @@ static void tcg_out_ext32s(TCGContext *s, TCGReg rd, TCGReg rs)
     tcg_out_op_rr(s, INDEX_op_ext32s_i64, rd, rs);
 }
 
+static void tcg_out_ext32u(TCGContext *s, TCGReg rd, TCGReg rs)
+{
+    tcg_debug_assert(TCG_TARGET_REG_BITS == 64);
+    tcg_debug_assert(TCG_TARGET_HAS_ext32u_i64);
+    tcg_out_op_rr(s, INDEX_op_ext32u_i64, rd, rs);
+}
+
 static void tcg_out_addi_ptr(TCGContext *s, TCGReg rd, TCGReg rs,
                              tcg_target_long imm)
 {
@@ -780,7 +787,6 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
 
     CASE_32_64(neg)      /* Optional (TCG_TARGET_HAS_neg_*). */
     CASE_32_64(not)      /* Optional (TCG_TARGET_HAS_not_*). */
-    CASE_64(ext32u)      /* Optional (TCG_TARGET_HAS_ext32u_i64). */
     CASE_64(ext_i32)
     CASE_64(extu_i32)
     CASE_32_64(ctpop)    /* Optional (TCG_TARGET_HAS_ctpop_*). */
@@ -864,6 +870,7 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
     case INDEX_op_ext16u_i32:
     case INDEX_op_ext16u_i64:
     case INDEX_op_ext32s_i64:
+    case INDEX_op_ext32u_i64:
     default:
         g_assert_not_reached();
     }