Optimize suspend checks in optimizing compiler.
- Remove the ones added during graph build (they were added
for the baseline code generator).
- Emit them at loop back edges after phi moves, so that the test
can directly jump to the loop header.
- Fix x86 and x86_64 suspend check by using cmpw instead of cmpl.
Change-Id: I6fad5795a55705d86c9e1cb85bf5d63dadfafa2a
diff --git a/compiler/optimizing/code_generator_x86_64.h b/compiler/optimizing/code_generator_x86_64.h
index ea21872..a299cf6 100644
--- a/compiler/optimizing/code_generator_x86_64.h
+++ b/compiler/optimizing/code_generator_x86_64.h
@@ -116,6 +116,11 @@
X86_64Assembler* GetAssembler() const { return assembler_; }
private:
+ // Generate code for the given suspend check. If not null, `successor`
+ // is the block to branch to if the suspend check is not needed, and after
+ // the suspend call.
+ void GenerateSuspendCheck(HSuspendCheck* instruction, HBasicBlock* successor);
+
X86_64Assembler* const assembler_;
CodeGeneratorX86_64* const codegen_;