Update HInstruction::NeedsCurrentMethod.
HLoadString and HLoadClass when sharpened may not need it
anymore. Instead just rely on the HCurrentMethod being the
SSA dependency of those instructions.
Also save storing the current method in the stack if the
graph actually doesn't need it.
test: m test-art-host test-art-target
Change-Id: I235d8275230637cbbd38fc0d2f9b822f6d2a9c1e
diff --git a/compiler/optimizing/code_generator_x86_64.cc b/compiler/optimizing/code_generator_x86_64.cc
index 28638d7..665d028 100644
--- a/compiler/optimizing/code_generator_x86_64.cc
+++ b/compiler/optimizing/code_generator_x86_64.cc
@@ -1140,8 +1140,13 @@
}
}
- __ movq(Address(CpuRegister(RSP), kCurrentMethodStackOffset),
- CpuRegister(kMethodRegisterArgument));
+ // Save the current method if we need it. Note that we do not
+ // do this in HCurrentMethod, as the instruction might have been removed
+ // in the SSA graph.
+ if (RequiresCurrentMethod()) {
+ __ movq(Address(CpuRegister(RSP), kCurrentMethodStackOffset),
+ CpuRegister(kMethodRegisterArgument));
+ }
}
void CodeGeneratorX86_64::GenerateFrameExit() {