PPC: Using a scratch register under LoadRealStackLimit

Milad Farazmand · Commit Bot · commit 0a055086c377 · 2019-12-05T23:30:09.000Z
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}
diff --git a/src/builtins/ppc/builtins-ppc.cc b/src/builtins/ppc/builtins-ppc.cc
@@ -67,7 +67,7 @@ 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
`@@ -67,7 +67,7 @@ void LoadRealStackLimit(MacroAssembler* masm, Register destination) {`
`67`	`67`	`intptr_t offset =`
`68`	`68`	`TurboAssembler::RootRegisterOffsetForExternalReference(isolate, limit);`
`69`	`69`	`CHECK(is_int32(offset));`
`70`		`- __ LoadP(destination, MemOperand(kRootRegister, offset));`
	`70`	`+ __ LoadP(destination, MemOperand(kRootRegister, offset), r0);`
`71`	`71`	`}`
`72`	`72`
`73`	`73`	`void Generate_StackOverflowCheck(MacroAssembler* masm, Register num_args,`