S390: [wasm] Int64Lowering of Int64Add

src/s390/macro-assembler-s390.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <assert.h>  // For assert
 #include <limits.h>  // For LONG_MIN, LONG_MAX.
 
 #if V8_TARGET_ARCH_S390
 
 #include "src/base/bits.h"
@@ skipping 3988 matching lines @@
   agsi(opnd, imm);
 #else
   asi(opnd, imm);
 #endif
 }
 
 //----------------------------------------------------------------------------
 //  Add Logical Instructions
 //----------------------------------------------------------------------------
 
+// Add Logical With Carry 32-bit (Register dst = Register src1 + Register src2)
+void MacroAssembler::AddLogicalWithCarry32(Register dst, Register src1,
+                                           Register src2) {
+  if (!dst.is(src2) && !dst.is(src1)) {
+    lr(dst, src1);
+    alcr(dst, src2);
+  } else if (!dst.is(src2)) {
+    // dst == src1
+    DCHECK(dst.is(src1));
+    alcr(dst, src2);
+  } else {
+    // dst == src2
+    DCHECK(dst.is(src2));
+    alcr(dst, src1);
+  }
+}
+
+// Add Logical 32-bit (Register dst = Register src1 + Register src2)
+void MacroAssembler::AddLogical32(Register dst, Register src1, Register src2) {
+  if (!dst.is(src2) && !dst.is(src1)) {
+    lr(dst, src1);
+    alr(dst, src2);
+  } else if (!dst.is(src2)) {
+    // dst == src1
+    DCHECK(dst.is(src1));
+    alr(dst, src2);
+  } else {
+    // dst == src2
+    DCHECK(dst.is(src2));
+    alr(dst, src1);
+  }
+}
+
 // Add Logical 32-bit (Register dst = Register dst + Immediate opnd)
 void MacroAssembler::AddLogical(Register dst, const Operand& imm) {
   alfi(dst, imm);
 }
 
 // Add Logical Pointer Size (Register dst = Register dst + Immediate opnd)
 void MacroAssembler::AddLogicalP(Register dst, const Operand& imm) {
 #ifdef V8_TARGET_ARCH_S390X
   algfi(dst, imm);
 #else
@@ skipping 1414 matching lines @@
   }
   if (mag.shift > 0) ShiftRightArith(result, result, Operand(mag.shift));
   ExtractBit(r0, dividend, 31);
   AddP(result, r0);
 }
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_S390