PPC/s390: Fix reg conflict when calling CallRuntimeWithCEntry

Change-Id: I2e0166cf99f2f9b501c82cbf27215389a3eb3092
Reviewed-on: https://chromium-review.googlesource.com/1135124Reviewed-by: Muntasir Mallick <mmallick@ca.ibm.com>
Commit-Queue: Junliang Yan <jyan@ca.ibm.com>
Cr-Commit-Position: refs/heads/master@{#54421}

src/compiler/ppc/code-generator-ppc.cc

@@ -2374,12 +2374,12 @@ void CodeGenerator::AssembleConstructFrame() {
         __ bge(&done);
       }
 
-      __ LoadP(r3,
+      __ LoadP(r5,
                FieldMemOperand(kWasmInstanceRegister,
                                WasmInstanceObject::kCEntryStubOffset),
                r0);
       __ Move(cp, Smi::kZero);
-      __ CallRuntimeWithCEntry(Runtime::kThrowWasmStackOverflow, r3);
+      __ CallRuntimeWithCEntry(Runtime::kThrowWasmStackOverflow, r5);
       // We come from WebAssembly, there are no references for the GC.
       ReferenceMap* reference_map = new (zone()) ReferenceMap(zone());
       RecordSafepoint(reference_map, Safepoint::kSimple, 0,

src/compiler/s390/code-generator-s390.cc

@@ -3014,10 +3014,10 @@ void CodeGenerator::AssembleConstructFrame() {
         __ bge(&done);
       }
 
-      __ LoadP(r2, FieldMemOperand(kWasmInstanceRegister,
+      __ LoadP(r4, FieldMemOperand(kWasmInstanceRegister,
                                    WasmInstanceObject::kCEntryStubOffset));
       __ Move(cp, Smi::kZero);
-      __ CallRuntimeWithCEntry(Runtime::kThrowWasmStackOverflow, r2);
+      __ CallRuntimeWithCEntry(Runtime::kThrowWasmStackOverflow, r4);
       // We come from WebAssembly, there are no references for the GC.
       ReferenceMap* reference_map = new (zone()) ReferenceMap(zone());
       RecordSafepoint(reference_map, Safepoint::kSimple, 0,