x64: Lower tlsvalue, sqmul_round_sat, and uunarrow in ISLE (#4793)

Lower tlsvalue, sqmul_round_sat, and uunarrow in ISLE.

cranelift/codegen/src/isa/x64/inst/emit_tests.rs

@@ -95,6 +95,24 @@ impl Inst {
         let dst = WritableGpr::from_writable_reg(dst).unwrap();
         Inst::Setcc { cc, dst }
     }
+
+    fn xmm_rm_r_imm(
+        op: SseOpcode,
+        src: RegMem,
+        dst: Writable<Reg>,
+        imm: u8,
+        size: OperandSize,
+    ) -> Inst {
+        debug_assert!(size.is_one_of(&[OperandSize::Size32, OperandSize::Size64]));
+        Inst::XmmRmRImm {
+            op,
+            src1: dst.to_reg(),
+            src2: src,
+            dst,
+            imm,
+            size,
+        }
+    }
 }
 
 #[test]
@@ -4738,6 +4756,7 @@ fn test_x64_emit() {
     insns.push((
         Inst::ElfTlsGetAddr {
             symbol: ExternalName::User(UserExternalNameRef::new(0)),
+            dst: WritableGpr::from_writable_reg(w_rax).unwrap(),
         },
         "66488D3D00000000666648E800000000",
         "%rax = elf_tls_get_addr User(userextname0)",
@@ -4746,6 +4765,7 @@ fn test_x64_emit() {
     insns.push((
         Inst::MachOTlsGetAddr {
             symbol: ExternalName::User(UserExternalNameRef::new(0)),
+            dst: WritableGpr::from_writable_reg(w_rax).unwrap(),
         },
         "488B3D00000000FF17",
         "%rax = macho_tls_get_addr User(userextname0)",
@@ -4754,6 +4774,7 @@ fn test_x64_emit() {
     insns.push((
         Inst::CoffTlsGetAddr {
             symbol: ExternalName::User(UserExternalNameRef::new(0)),
+            dst: WritableGpr::from_writable_reg(w_rax).unwrap(),
         },
         "8B050000000065488B0C2558000000488B04C1488D8000000000",
         "%rax = coff_tls_get_addr User(userextname0)",