ART: Arm32 packed-switch jump tables
Add jump table support to the thumb2 assembler. Jump tables are
a collection of labels for the case targets, and an anchor label
denoting the position of the jump.
Use the jump table support to implement packed-switch support for
arm32.
Add tests for BindTrackedLabel and JumpTable to the thumb2 assembler
test.
Bug: 24092914
Change-Id: I5c84f193dfebf9e07f48678efc8bd151bb1410dd
diff --git a/compiler/utils/arm/assembler_arm32.h b/compiler/utils/arm/assembler_arm32.h
index 4646538..5233dcb 100644
--- a/compiler/utils/arm/assembler_arm32.h
+++ b/compiler/utils/arm/assembler_arm32.h
@@ -261,6 +261,8 @@
void AddConstant(Register rd, Register rn, int32_t value,
Condition cond = AL, SetCc set_cc = kCcDontCare) OVERRIDE;
+ void CmpConstant(Register rn, int32_t value, Condition cond = AL) OVERRIDE;
+
// Load and Store. May clobber IP.
void LoadImmediate(Register rd, int32_t value, Condition cond = AL) OVERRIDE;
void MarkExceptionHandler(Label* label) OVERRIDE;
@@ -308,6 +310,11 @@
void MemoryBarrier(ManagedRegister scratch) OVERRIDE;
+ JumpTable* CreateJumpTable(std::vector<Label*>&& labels, Register base_reg) OVERRIDE;
+ void EmitJumpTableDispatch(JumpTable* jump_table, Register displacement_reg) OVERRIDE;
+
+ void FinalizeCode() OVERRIDE;
+
private:
void EmitType01(Condition cond,
int type,