// Complex Pattern Definitions.
//
def lea64addr : ComplexPattern<i64, 4, "SelectLEAAddr",
- [add, mul, X86mul_imm, shl, or, frameindex, X86Wrapper],
- []>;
+ [add, mul, X86mul_imm, shl, or, frameindex,
+ X86WrapperRIP], []>;
+
+def tls64addr : ComplexPattern<i64, 4, "SelectTLSADDRAddr",
+ [tglobaltlsaddr], []>;
//===----------------------------------------------------------------------===//
// Pattern fragments.
def REP_STOSQ : RI<0xAB, RawFrm, (outs), (ins), "{rep;stosq|rep stosq}",
[(X86rep_stos i64)]>, REP;
+// Fast system-call instructions
+def SYSCALL : I<0x05, RawFrm,
+ (outs), (ins), "syscall", []>, TB;
+def SYSENTER : I<0x34, RawFrm,
+ (outs), (ins), "sysenter", []>, TB;
+def SYSEXIT : I<0x35, RawFrm,
+ (outs), (ins), "sysexit", []>, TB;
+def SYSEXIT64 : RI<0x35, RawFrm,
+ (outs), (ins), "sysexit", []>, TB;
+def SYSRET : I<0x07, RawFrm,
+ (outs), (ins), "sysret", []>, TB;
+
//===----------------------------------------------------------------------===//
// Move Instructions...
//
// Alias instructions that map movr0 to xor. Use xorl instead of xorq; it's
// equivalent due to implicit zero-extending, and it sometimes has a smaller
// encoding.
-// FIXME: remove when we can teach regalloc that xor reg, reg is ok.
-// FIXME: AddedComplexity gives MOV64r0 a higher priority than MOV64ri32. Remove
+// FIXME: AddedComplexity gives this a higher priority than MOV64ri32. Remove
// when we have a better way to specify isel priority.
-let Defs = [EFLAGS], AddedComplexity = 1,
- isReMaterializable = 1, isAsCheapAsAMove = 1 in
-def MOV64r0 : I<0x31, MRMInitReg, (outs GR64:$dst), (ins),
- "xor{l}\t${dst:subreg32}, ${dst:subreg32}",
- [(set GR64:$dst, 0)]>;
+let AddedComplexity = 1 in
+def : Pat<(i64 0),
+ (SUBREG_TO_REG (i64 0), (MOV32r0), x86_subreg_32bit)>;
+
// Materialize i64 constant where top 32-bits are zero.
let AddedComplexity = 1, isReMaterializable = 1, isAsCheapAsAMove = 1 in
XMM0, XMM1, XMM2, XMM3, XMM4, XMM5, XMM6, XMM7,
XMM8, XMM9, XMM10, XMM11, XMM12, XMM13, XMM14, XMM15, EFLAGS],
Uses = [RSP] in
-def TLS_addr64 : I<0, Pseudo, (outs), (ins i64imm:$sym),
+def TLS_addr64 : I<0, Pseudo, (outs), (ins lea64mem:$sym),
".byte\t0x66; "
- "leaq\t${sym:mem}(%rip), %rdi; "
+ "leaq\t$sym(%rip), %rdi; "
".word\t0x6666; "
"rex64; "
"call\t__tls_get_addr@PLT",
- [(X86tlsaddr tglobaltlsaddr:$sym)]>,
+ [(X86tlsaddr tls64addr:$sym)]>,
Requires<[In64BitMode]>;
let AddedComplexity = 5 in
// Non-Instruction Patterns
//===----------------------------------------------------------------------===//
-// ConstantPool GlobalAddress, ExternalSymbol, and JumpTable
+// ConstantPool GlobalAddress, ExternalSymbol, and JumpTable when not in small
+// code model mode, should use 'movabs'. FIXME: This is really a hack, the
+// 'movabs' predicate should handle this sort of thing.
def : Pat<(i64 (X86Wrapper tconstpool :$dst)),
(MOV64ri tconstpool :$dst)>, Requires<[NotSmallCode]>;
def : Pat<(i64 (X86Wrapper tjumptable :$dst)),
def : Pat<(i64 (X86Wrapper texternalsym:$dst)),
(MOV64ri texternalsym:$dst)>, Requires<[NotSmallCode]>;
+// In static codegen with small code model, we can get the address of a label
+// into a register with 'movl'. FIXME: This is a hack, the 'imm' predicate of
+// the MOV64ri64i32 should accept these.
+def : Pat<(i64 (X86Wrapper tconstpool :$dst)),
+ (MOV64ri64i32 tconstpool :$dst)>, Requires<[SmallCode]>;
+def : Pat<(i64 (X86Wrapper tjumptable :$dst)),
+ (MOV64ri64i32 tjumptable :$dst)>, Requires<[SmallCode]>;
+def : Pat<(i64 (X86Wrapper tglobaladdr :$dst)),
+ (MOV64ri64i32 tglobaladdr :$dst)>, Requires<[SmallCode]>;
+def : Pat<(i64 (X86Wrapper texternalsym:$dst)),
+ (MOV64ri64i32 texternalsym:$dst)>, Requires<[SmallCode]>;
+
+
+// If we have small model and -static mode, it is safe to store global addresses
+// directly as immediates. FIXME: This is really a hack, the 'imm' predicate
+// for MOV64mi32 should handle this sort of thing.
def : Pat<(store (i64 (X86Wrapper tconstpool:$src)), addr:$dst),
(MOV64mi32 addr:$dst, tconstpool:$src)>,
Requires<[SmallCode, IsStatic]>;