AArch64: fix and enable sparse- and packed-switch.
Changed implementation of sparse- and packed-switch to use w and x
registers appropriately. Also added a couple of utilities to obtain a
w/s register corresponding to a given x/d register and viceversa.
Change-Id: I485a110f6e91b09227d9e2a0b8b14224a10bca90
diff --git a/compiler/dex/quick/arm64/codegen_arm64.h b/compiler/dex/quick/arm64/codegen_arm64.h
index 6251f4f..21db771 100644
--- a/compiler/dex/quick/arm64/codegen_arm64.h
+++ b/compiler/dex/quick/arm64/codegen_arm64.h
@@ -223,6 +223,40 @@
bool skip_this);
private:
+ /**
+ * @brief Given register xNN (dNN), returns register wNN (sNN).
+ * @param reg #RegStorage containing a Solo64 input register (e.g. @c x1 or @c d2).
+ * @return A Solo32 with the same register number as the @p reg (e.g. @c w1 or @c s2).
+ * @see As64BitReg
+ */
+ RegStorage As32BitReg(RegStorage reg) {
+ DCHECK(reg.Is64Bit());
+ DCHECK(!reg.IsPair());
+ RegStorage ret_val = RegStorage(RegStorage::k32BitSolo,
+ reg.GetRawBits() & RegStorage::kRegTypeMask);
+ DCHECK_EQ(GetRegInfo(reg)->FindMatchingView(RegisterInfo::k32SoloStorageMask)
+ ->GetReg().GetReg(),
+ ret_val.GetReg());
+ return ret_val;
+ }
+
+ /**
+ * @brief Given register wNN (sNN), returns register xNN (dNN).
+ * @param reg #RegStorage containing a Solo32 input register (e.g. @c w1 or @c s2).
+ * @return A Solo64 with the same register number as the @p reg (e.g. @c x1 or @c d2).
+ * @see As32BitReg
+ */
+ RegStorage As64BitReg(RegStorage reg) {
+ DCHECK(reg.Is32Bit());
+ DCHECK(!reg.IsPair());
+ RegStorage ret_val = RegStorage(RegStorage::k64BitSolo,
+ reg.GetRawBits() & RegStorage::kRegTypeMask);
+ DCHECK_EQ(GetRegInfo(reg)->FindMatchingView(RegisterInfo::k64SoloStorageMask)
+ ->GetReg().GetReg(),
+ ret_val.GetReg());
+ return ret_val;
+ }
+
LIR* LoadFPConstantValue(int r_dest, int32_t value);
LIR* LoadFPConstantValueWide(int r_dest, int64_t value);
void ReplaceFixup(LIR* prev_lir, LIR* orig_lir, LIR* new_lir);