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

src/arm64/macro-assembler-arm64.cc

Index: src/arm64/macro-assembler-arm64.cc
diff --git a/src/arm64/macro-assembler-arm64.cc b/src/arm64/macro-assembler-arm64.cc
index 8a42f8e7676e90896df0b14a51572137ee521674..11f07d56a9954d2fe5b8b16ec0e1f5e797646aa3 100644
--- a/src/arm64/macro-assembler-arm64.cc
+++ b/src/arm64/macro-assembler-arm64.cc
@@ -2669,13 +2669,13 @@ void MacroAssembler::EnterFrame(StackFrame::Type type) {
   } else if (type == StackFrame::WASM_COMPILED) {
     DCHECK(csp.Is(StackPointer()));
     Mov(type_reg, Smi::FromInt(type));
-    Push(xzr, lr);
-    Push(fp, type_reg);
-    Add(fp, csp, TypedFrameConstants::kFixedFrameSizeFromFp);
-    // csp[3] for alignment
-    // csp[2] : lr
-    // csp[1] : fp
-    // csp[0] : type
+    __ Push(lr, fp);

[Rodolph Perfetta (ARM), 2017/02/08 01:40:55]

no need for __ as you are in the macro assembler. This code works because __ is
#define to nothing here. This was done to allow some macro to work in the macro
assembler and outside.

[ahaas, 2017/02/08 09:11:46]

Done.

+    __ Mov(fp, csp);
+    __ Push(type_reg, xzr);
+    // csp[3] : lr
+    // csp[2] : fp
+    // csp[1] : type
+    // csp[0] : for alignment
   } else {
     DCHECK(jssp.Is(StackPointer()));
     Mov(type_reg, Smi::FromInt(type));
@@ -2690,12 +2690,19 @@ void MacroAssembler::EnterFrame(StackFrame::Type type) {
 
 
 void MacroAssembler::LeaveFrame(StackFrame::Type type) {
-  DCHECK(jssp.Is(StackPointer()));
-  // Drop the execution stack down to the frame pointer and restore
-  // the caller frame pointer and return address.
-  Mov(jssp, fp);
-  AssertStackConsistency();
-  Pop(fp, lr);
+  if (type == StackFrame::WASM_COMPILED) {
+    DCHECK(csp.Is(StackPointer()));
+    __ Mov(csp, fp);

[Rodolph Perfetta (ARM), 2017/02/08 01:40:55]

ditto.

[ahaas, 2017/02/08 09:11:46]

Done.

+    AssertStackConsistency();
+    __ Pop(fp, lr);
+  } else {
+    DCHECK(jssp.Is(StackPointer()));
+    // Drop the execution stack down to the frame pointer and restore
+    // the caller frame pointer and return address.
+    Mov(jssp, fp);
+    AssertStackConsistency();
+    Pop(fp, lr);
+  }
 }