ppc: [liftoff] implement sign extend ops

Change-Id: I0420b3cd9c940dbf684c0aa1478172921423c724
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3060483Reviewed-by: Milad Fa <mfarazma@redhat.com>
Commit-Queue: Junliang Yan <junyan@redhat.com>
Cr-Commit-Position: refs/heads/master@{#75999}

src/wasm/baseline/ppc/liftoff-assembler-ppc.h

@@ -830,6 +830,15 @@ UNIMPLEMENTED_FP_UNOP(f64_sqrt)
     LFR_TO_REG, LFR_TO_REG, USE, , void)                                     \
   V(i64_ctz, CountTrailingZerosU64, LiftoffRegister, LiftoffRegister,        \
     LFR_TO_REG, LFR_TO_REG, USE, , void)                                     \
+  V(u32_to_intptr, ZeroExtWord32, Register, Register, , , USE, , void)       \
+  V(i32_signextend_i8, extsb, Register, Register, , , USE, , void)           \
+  V(i32_signextend_i16, extsh, Register, Register, , , USE, , void)          \
+  V(i64_signextend_i8, extsb, LiftoffRegister, LiftoffRegister, LFR_TO_REG,  \
+    LFR_TO_REG, USE, , void)                                                 \
+  V(i64_signextend_i16, extsh, LiftoffRegister, LiftoffRegister, LFR_TO_REG, \
+    LFR_TO_REG, USE, , void)                                                 \
+  V(i64_signextend_i32, extsw, LiftoffRegister, LiftoffRegister, LFR_TO_REG, \
+    LFR_TO_REG, USE, , void)                                                 \
   V(i32_popcnt, Popcnt32, Register, Register, , , USE, true, bool)           \
   V(i64_popcnt, Popcnt64, LiftoffRegister, LiftoffRegister, LFR_TO_REG,      \
     LFR_TO_REG, USE, true, bool)
@@ -1000,14 +1009,6 @@ bool LiftoffAssembler::emit_i64_remu(LiftoffRegister dst, LiftoffRegister lhs,
   return true;
 }
 
-void LiftoffAssembler::emit_u32_to_intptr(Register dst, Register src) {
-#ifdef V8_TARGET_ARCH_PPC64
-  bailout(kUnsupportedArchitecture, "emit_u32_to_intptr");
-#else
-// This is a nop on ppc32.
-#endif
-}
-
 bool LiftoffAssembler::emit_type_conversion(WasmOpcode opcode,
                                             LiftoffRegister dst,
                                             LiftoffRegister src, Label* trap) {
@@ -1015,29 +1016,6 @@ bool LiftoffAssembler::emit_type_conversion(WasmOpcode opcode,
   return true;
 }
 
-void LiftoffAssembler::emit_i32_signextend_i8(Register dst, Register src) {
-  bailout(kUnsupportedArchitecture, "emit_i32_signextend_i8");
-}
-
-void LiftoffAssembler::emit_i32_signextend_i16(Register dst, Register src) {
-  bailout(kUnsupportedArchitecture, "emit_i32_signextend_i16");
-}
-
-void LiftoffAssembler::emit_i64_signextend_i8(LiftoffRegister dst,
-                                              LiftoffRegister src) {
-  bailout(kUnsupportedArchitecture, "emit_i64_signextend_i8");
-}
-
-void LiftoffAssembler::emit_i64_signextend_i16(LiftoffRegister dst,
-                                               LiftoffRegister src) {
-  bailout(kUnsupportedArchitecture, "emit_i64_signextend_i16");
-}
-
-void LiftoffAssembler::emit_i64_signextend_i32(LiftoffRegister dst,
-                                               LiftoffRegister src) {
-  bailout(kUnsupportedArchitecture, "emit_i64_signextend_i32");
-}
-
 void LiftoffAssembler::emit_jump(Label* label) { b(al, label); }
 
 void LiftoffAssembler::emit_jump(Register target) { Jump(target); }