https://codereview.chromium.org/209933003/diff/1/src/arm64/lithium-codegen-arm64.h
File src/arm64/lithium-codegen-arm64.h (right):
https://codereview.chromium.org/209933003/diff/1/src/arm64/lithium-codegen-arm64.h#newcode385
src/arm64/lithium-codegen-arm64.h:385:
codegen_->masm_->Mov(to_be_pushed_lr, lr);
On 2014/03/24 11:09:25, ulan wrote:
to_be_pushed_lr is ip0, how do we guarantee that this doesn't get
clobbered from
this point until the StoreRegistersStateStub gets control?
This register is reserved by the UseScratchRegisterScope so it cannot be
used by the call (which will use the next register: ip1).
After the call, we jump directly to the stub code (which has its own
context) which starts also by a UseScratchRegisterScope which also
reserves to_be_pushed_lr.
https://codereview.chromium.org/209933003/
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