x86_64: Correct fix for cmp-long
We cannot rely on the sign of the sub instruction because
LONG_MAX - LONG_MIN = -1 and the sign will indicate that
LONG_MAX < KONG_MIN and it is incorrect.
The fix also contains small improvement for load wide constant.
Change-Id: I74df70d7c198cebff5cad8c1d5614c1d29b79a1b
Signed-off-by: Serguei Katkov <serguei.i.katkov@intel.com>
diff --git a/compiler/dex/quick/x86/x86_lir.h b/compiler/dex/quick/x86/x86_lir.h
index 28b9dca..17c44bc 100644
--- a/compiler/dex/quick/x86/x86_lir.h
+++ b/compiler/dex/quick/x86/x86_lir.h
@@ -609,6 +609,10 @@
Binary0fOpCode(kX86Movzx16), // zero-extend 16-bit value
Binary0fOpCode(kX86Movsx8), // sign-extend 8-bit value
Binary0fOpCode(kX86Movsx16), // sign-extend 16-bit value
+ Binary0fOpCode(kX86Movzx8q), // zero-extend 8-bit value to quad word
+ Binary0fOpCode(kX86Movzx16q), // zero-extend 16-bit value to quad word
+ Binary0fOpCode(kX86Movsx8q), // sign-extend 8-bit value to quad word
+ Binary0fOpCode(kX86Movsx16q), // sign-extend 16-bit value to quad word
#undef Binary0fOpCode
kX86Jcc8, kX86Jcc32, // jCC rel8/32; lir operands - 0: rel, 1: CC, target assigned
kX86Jmp8, kX86Jmp32, // jmp rel8/32; lir operands - 0: rel, target assigned
@@ -707,6 +711,8 @@
#define REX_X 0x42
// Extension of the ModR/M r/m field, SIB base field, or Opcode reg field
#define REX_B 0x41
+// Extended register set
+#define REX 0x40
// Mask extracting the least 3 bits of r0..r15
#define kRegNumMask32 0x07
// Value indicating that base or reg is not used