deps: V8: cherry-pick 0a055086c377

targos · MylesBorins · commit dced9beef66e · 2020-01-07T19:50:38.000-05:00
Original commit message: PPC: Using a scratch register under LoadRealStackLimit Change-Id: Id9e9142a8ff185309b91dcfff70dae8ccf8b5166 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1954244 Reviewed-by: Junliang Yan <jyan@ca.ibm.com> Commit-Queue: Milad Farazmand <miladfar@ca.ibm.com> Cr-Commit-Position: refs/heads/master@{#65357} Refs: v8/v8@0a05508 PR-URL: #30109 Reviewed-By: Myles Borins <myles.borins@gmail.com>
diff --git a/common.gypi b/common.gypi
@@ -38,7 +38,7 @@
 
     # Reset this number to 0 on major V8 upgrades.
     # Increment by one for each non-official patch applied to deps/v8.
-    'v8_embedder_string': '-node.14',
+    'v8_embedder_string': '-node.15',
 
     ##### V8 defaults for Node.js #####
 
diff --git a/deps/v8/src/builtins/ppc/builtins-ppc.cc b/deps/v8/src/builtins/ppc/builtins-ppc.cc
@@ -90,7 +90,7 @@ void LoadRealStackLimit(MacroAssembler* masm, Register destination) {
   intptr_t offset =
       TurboAssembler::RootRegisterOffsetForExternalReference(isolate, limit);
   CHECK(is_int32(offset));
-  __ LoadP(destination, MemOperand(kRootRegister, offset));
+  __ LoadP(destination, MemOperand(kRootRegister, offset), r0);
 }
 
 void Generate_StackOverflowCheck(MacroAssembler* masm, Register num_args,

Original file line number	Diff line number	Diff line change
`@@ -90,7 +90,7 @@ void LoadRealStackLimit(MacroAssembler* masm, Register destination) {`
`90`	`90`	`intptr_t offset =`
`91`	`91`	`TurboAssembler::RootRegisterOffsetForExternalReference(isolate, limit);`
`92`	`92`	`CHECK(is_int32(offset));`
`93`		`- __ LoadP(destination, MemOperand(kRootRegister, offset));`
	`93`	`+ __ LoadP(destination, MemOperand(kRootRegister, offset), r0);`
`94`	`94`	`}`
`95`	`95`
`96`	`96`	`void Generate_StackOverflowCheck(MacroAssembler* masm, Register num_args,`