[wasm] Do not use setjmp/longjmp in cctests.

src/compiler/arm64/code-generator-arm64.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 "src/compiler/code-generator.h"
 
 #include "src/arm64/frames-arm64.h"
 #include "src/arm64/macro-assembler-arm64.h"
 #include "src/compilation-info.h"
 #include "src/compiler/code-generator-impl.h"
@@ skipping 1705 matching lines @@
           i.InputInt32(instr_->InputCount() - 1));
       bool old_has_frame = __ has_frame();
       if (frame_elided_) {
         __ set_has_frame(true);
         __ EnterFrame(StackFrame::WASM_COMPILED);
       }
       GenerateCallToTrap(trap_id);
       if (frame_elided_) {
         __ set_has_frame(old_has_frame);
       }
-      if (FLAG_debug_code) {
-        // The trap code should never return.
-        __ Brk(0);
-      }
     }
 
    private:
     void GenerateCallToTrap(Runtime::FunctionId trap_id) {
       if (trap_id == Runtime::kNumFunctions) {
         // We cannot test calls to the runtime in cctest/test-run-wasm.
         // Therefore we emit a call to C here instead of a call to the runtime.
         __ CallCFunction(
             ExternalReference::wasm_call_trap_callback_for_testing(isolate()),
             0);
+        __ LeaveFrame(StackFrame::WASM_COMPILED);
+        __ Ret();
       } else {
         DCHECK(csp.Is(__ StackPointer()));
         __ Move(cp, Smi::kZero);
         // Initialize the jssp because it is required for the runtime call.
         __ Mov(jssp, csp);
         gen_->AssembleSourcePosition(instr_);
         __ CallRuntime(trap_id);
+        ReferenceMap* reference_map =
+            new (gen_->zone()) ReferenceMap(gen_->zone());
+        gen_->RecordSafepoint(reference_map, Safepoint::kSimple, 0,
+                              Safepoint::kNoLazyDeopt);
+        if (FLAG_debug_code) {
+          // The trap code should never return.
+          __ Brk(0);
+        }
       }
-      ReferenceMap* reference_map =
-          new (gen_->zone()) ReferenceMap(gen_->zone());
-      gen_->RecordSafepoint(reference_map, Safepoint::kSimple, 0,
-                            Safepoint::kNoLazyDeopt);
     }
     bool frame_elided_;
     Instruction* instr_;
     CodeGenerator* gen_;
   };
   bool frame_elided = !frame_access_state()->has_frame();
   auto ool = new (zone()) OutOfLineTrap(this, frame_elided, instr);
   Label* tlabel = ool->entry();
   Condition cc = FlagsConditionToCondition(condition);
   __ B(cc, tlabel);
@@ skipping 117 matching lines @@
       // unoptimized
       // frame is still on the stack. Optimized code uses OSR values directly
       // from
       // the unoptimized frame. Thus, all that needs to be done is to allocate
       // the
       // remaining stack slots.
       if (FLAG_code_comments) __ RecordComment("-- OSR entrypoint --");
       osr_pc_offset_ = __ pc_offset();
       shrink_slots -= OsrHelper(info()).UnoptimizedFrameSlots();
     }
-
     // Build remainder of frame, including accounting for and filling-in
     // frame-specific header information, e.g. claiming the extra slot that
     // other platforms explicitly push for STUB frames and frames recording
     // their argument count.
     __ Claim(shrink_slots + (fixed_frame_size & 1));
     if (descriptor->PushArgumentCount()) {
       __ Str(kJavaScriptCallArgCountRegister,
              MemOperand(fp, OptimizedBuiltinFrameConstants::kArgCOffset));
     }
     bool is_stub_frame =
@@ skipping 274 matching lines @@
       padding_size -= kInstructionSize;
     }
   }
 }
 
 #undef __
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8