X86_64 QBE: use RIP addressing
Take advantage of RIP addressing in 64 bit mode to improve the code
generation for accesses to the constant area as well as packed switches.
Avoid computing the address of the start of the method, which is needed
in 32 bit mode.
To do this, we add a new 'pseudo-register' kRIPReg to minimize the
changes needed to get the new addressing mode to be generated.
Change-Id: Ia28c93f98b09939806d91ff0bd7392e58996d108
Signed-off-by: Mark Mendell <mark.p.mendell@intel.com>
diff --git a/compiler/dex/compiler_enums.h b/compiler/dex/compiler_enums.h
index 3b3170e..a3fe8ad 100644
--- a/compiler/dex/compiler_enums.h
+++ b/compiler/dex/compiler_enums.h
@@ -606,7 +606,7 @@
};
std::ostream& operator<<(std::ostream& os, const SelectInstructionKind& kind);
-// LIR fixup kinds for Arm
+// LIR fixup kinds for Arm and X86.
enum FixupKind {
kFixupNone,
kFixupLabel, // For labels we just adjust the offset.
@@ -624,6 +624,7 @@
kFixupMovImmHST, // kThumb2MovImm16HST.
kFixupAlign4, // Align to 4-byte boundary.
kFixupA53Erratum835769, // Cortex A53 Erratum 835769.
+ kFixupSwitchTable, // X86_64 packed switch table.
};
std::ostream& operator<<(std::ostream& os, const FixupKind& kind);