} // isCodeGenOnly
+def : Pat<(i16 (anyext (i8 (X86setcc_c X86_COND_B, EFLAGS)))),
+ (SETB_C16r)>;
+def : Pat<(i32 (anyext (i8 (X86setcc_c X86_COND_B, EFLAGS)))),
+ (SETB_C32r)>;
def : Pat<(i64 (anyext (i8 (X86setcc_c X86_COND_B, EFLAGS)))),
(SETB_C64r)>;
+def : Pat<(i16 (sext (i8 (X86setcc_c X86_COND_B, EFLAGS)))),
+ (SETB_C16r)>;
+def : Pat<(i32 (sext (i8 (X86setcc_c X86_COND_B, EFLAGS)))),
+ (SETB_C32r)>;
+def : Pat<(i64 (sext (i8 (X86setcc_c X86_COND_B, EFLAGS)))),
+ (SETB_C64r)>;
+
+// We canonicalize 'setb' to "(and (sbb reg,reg), 1)" on the hope that the and
+// will be eliminated and that the sbb can be extended up to a wider type. When
+// this happens, it is great. However, if we are left with an 8-bit sbb and an
+// and, we might as well just match it as a setb.
+def : Pat<(and (i8 (X86setcc_c X86_COND_B, EFLAGS)), 1),
+ (SETBr)>;
+
+// (add OP, SETB) -> (adc OP, 0)
+def : Pat<(add (and (i8 (X86setcc_c X86_COND_B, EFLAGS)), 1), GR8:$op),
+ (ADC8ri GR8:$op, 0)>;
+def : Pat<(add (and (i32 (X86setcc_c X86_COND_B, EFLAGS)), 1), GR32:$op),
+ (ADC32ri8 GR32:$op, 0)>;
+def : Pat<(add (and (i64 (X86setcc_c X86_COND_B, EFLAGS)), 1), GR64:$op),
+ (ADC64ri8 GR64:$op, 0)>;
+
+// (sub OP, SETB) -> (sbb OP, 0)
+def : Pat<(sub GR8:$op, (and (i8 (X86setcc_c X86_COND_B, EFLAGS)), 1)),
+ (SBB8ri GR8:$op, 0)>;
+def : Pat<(sub GR32:$op, (and (i32 (X86setcc_c X86_COND_B, EFLAGS)), 1)),
+ (SBB32ri8 GR32:$op, 0)>;
+def : Pat<(sub GR64:$op, (and (i64 (X86setcc_c X86_COND_B, EFLAGS)), 1)),
+ (SBB64ri8 GR64:$op, 0)>;
+
+// (sub OP, SETCC_CARRY) -> (adc OP, 0)
+def : Pat<(sub GR8:$op, (i8 (X86setcc_c X86_COND_B, EFLAGS))),
+ (ADC8ri GR8:$op, 0)>;
+def : Pat<(sub GR32:$op, (i32 (X86setcc_c X86_COND_B, EFLAGS))),
+ (ADC32ri8 GR32:$op, 0)>;
+def : Pat<(sub GR64:$op, (i64 (X86setcc_c X86_COND_B, EFLAGS))),
+ (ADC64ri8 GR64:$op, 0)>;
//===----------------------------------------------------------------------===//
// String Pseudo Instructions
XMM8, XMM9, XMM10, XMM11, XMM12, XMM13, XMM14, XMM15, EFLAGS],
Uses = [ESP] in
def TLS_addr32 : I<0, Pseudo, (outs), (ins i32mem:$sym),
- "leal\t$sym, %eax; "
- "call\t___tls_get_addr@PLT",
+ "# TLS_addr32",
[(X86tlsaddr tls32addr:$sym)]>,
Requires<[In32BitMode]>;
XMM8, XMM9, XMM10, XMM11, XMM12, XMM13, XMM14, XMM15, EFLAGS],
Uses = [RSP] in
def TLS_addr64 : I<0, Pseudo, (outs), (ins i64mem:$sym),
- ".byte\t0x66; "
- "leaq\t$sym(%rip), %rdi; "
- ".word\t0x6666; "
- "rex64; "
- "call\t__tls_get_addr@PLT",
+ "# TLS_addr64",
[(X86tlsaddr tls64addr:$sym)]>,
Requires<[In64BitMode]>;
// For i386, the address of the thunk is passed on the stack, on return the
// address of the variable is in %eax. %ecx is trashed during the function
// call. All other registers are preserved.
-let Defs = [EAX, ECX],
+let Defs = [EAX, ECX, EFLAGS],
Uses = [ESP],
usesCustomInserter = 1 in
def TLSCall_32 : I<0, Pseudo, (outs), (ins i32mem:$sym),
// For x86_64, the address of the thunk is passed in %rdi, on return
// the address of the variable is in %rax. All other registers are preserved.
-let Defs = [RAX],
- Uses = [RDI],
+let Defs = [RAX, EFLAGS],
+ Uses = [RSP, RDI],
usesCustomInserter = 1 in
def TLSCall_64 : I<0, Pseudo, (outs), (ins i64mem:$sym),
"# TLSCall_64",
// Memory barriers
// TODO: Get this to fold the constant into the instruction.
+let isCodeGenOnly = 1 in
def OR32mrLocked : I<0x09, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$zero),
"lock\n\t"
"or{l}\t{$zero, $dst|$dst, $zero}",
let hasSideEffects = 1 in
def Int_MemBarrier : I<0, Pseudo, (outs), (ins),
"#MEMBARRIER",
- [(X86MemBarrier)]>, Requires<[HasSSE2]>;
+ [(X86MemBarrier)]>;
// TODO: Get this to fold the constant into the instruction.
-let hasSideEffects = 1, Defs = [ESP] in
+let hasSideEffects = 1, Defs = [ESP], isCodeGenOnly = 1 in
def Int_MemBarrierNoSSE64 : RI<0x09, MRM1r, (outs), (ins GR64:$zero),
"lock\n\t"
"or{q}\t{$zero, (%rsp)|(%rsp), $zero}",
Requires<[In64BitMode]>, LOCK;
-// Optimized codegen when the non-memory output is not used.
-let Defs = [EFLAGS], mayLoad = 1, mayStore = 1 in {
-def LOCK_ADD8mr : I<0x00, MRMDestMem, (outs), (ins i8mem:$dst, GR8:$src2),
- "lock\n\t"
- "add{b}\t{$src2, $dst|$dst, $src2}", []>, LOCK;
-def LOCK_ADD16mr : I<0x01, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src2),
- "lock\n\t"
- "add{w}\t{$src2, $dst|$dst, $src2}", []>, OpSize, LOCK;
-def LOCK_ADD32mr : I<0x01, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src2),
- "lock\n\t"
- "add{l}\t{$src2, $dst|$dst, $src2}", []>, LOCK;
-def LOCK_ADD64mr : RI<0x01, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src2),
- "lock\n\t"
- "add{q}\t{$src2, $dst|$dst, $src2}", []>, LOCK;
-
-def LOCK_ADD8mi : Ii8<0x80, MRM0m, (outs), (ins i8mem :$dst, i8imm :$src2),
- "lock\n\t"
- "add{b}\t{$src2, $dst|$dst, $src2}", []>, LOCK;
-def LOCK_ADD16mi : Ii16<0x81, MRM0m, (outs), (ins i16mem:$dst, i16imm:$src2),
- "lock\n\t"
- "add{w}\t{$src2, $dst|$dst, $src2}", []>, LOCK;
-def LOCK_ADD32mi : Ii32<0x81, MRM0m, (outs), (ins i32mem:$dst, i32imm:$src2),
- "lock\n\t"
- "add{l}\t{$src2, $dst|$dst, $src2}", []>, LOCK;
-def LOCK_ADD64mi32 : RIi32<0x81, MRM0m, (outs),
- (ins i64mem:$dst, i64i32imm :$src2),
- "lock\n\t"
- "add{q}\t{$src2, $dst|$dst, $src2}", []>, LOCK;
-
-def LOCK_ADD16mi8 : Ii8<0x83, MRM0m, (outs), (ins i16mem:$dst, i16i8imm :$src2),
- "lock\n\t"
- "add{w}\t{$src2, $dst|$dst, $src2}", []>, OpSize, LOCK;
-def LOCK_ADD32mi8 : Ii8<0x83, MRM0m, (outs), (ins i32mem:$dst, i32i8imm :$src2),
- "lock\n\t"
- "add{l}\t{$src2, $dst|$dst, $src2}", []>, LOCK;
-def LOCK_ADD64mi8 : RIi8<0x83, MRM0m, (outs),
- (ins i64mem:$dst, i64i8imm :$src2),
- "lock\n\t"
- "add{q}\t{$src2, $dst|$dst, $src2}", []>, LOCK;
-
-def LOCK_SUB8mr : I<0x28, MRMDestMem, (outs), (ins i8mem :$dst, GR8 :$src2),
- "lock\n\t"
- "sub{b}\t{$src2, $dst|$dst, $src2}", []>, LOCK;
-def LOCK_SUB16mr : I<0x29, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src2),
- "lock\n\t"
- "sub{w}\t{$src2, $dst|$dst, $src2}", []>, OpSize, LOCK;
-def LOCK_SUB32mr : I<0x29, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src2),
- "lock\n\t"
- "sub{l}\t{$src2, $dst|$dst, $src2}", []>, LOCK;
-def LOCK_SUB64mr : RI<0x29, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src2),
- "lock\n\t"
- "sub{q}\t{$src2, $dst|$dst, $src2}", []>, LOCK;
+// RegOpc corresponds to the mr version of the instruction
+// ImmOpc corresponds to the mi version of the instruction
+// ImmOpc8 corresponds to the mi8 version of the instruction
+// ImmMod corresponds to the instruction format of the mi and mi8 versions
+multiclass LOCK_ArithBinOp<bits<8> RegOpc, bits<8> ImmOpc, bits<8> ImmOpc8,
+ Format ImmMod, string mnemonic> {
+let Defs = [EFLAGS], mayLoad = 1, mayStore = 1, isCodeGenOnly = 1 in {
+
+def #NAME#8mr : I<{RegOpc{7}, RegOpc{6}, RegOpc{5}, RegOpc{4},
+ RegOpc{3}, RegOpc{2}, RegOpc{1}, 0 },
+ MRMDestMem, (outs), (ins i8mem:$dst, GR8:$src2),
+ !strconcat("lock\n\t", mnemonic, "{b}\t",
+ "{$src2, $dst|$dst, $src2}"),
+ []>, LOCK;
+def #NAME#16mr : I<{RegOpc{7}, RegOpc{6}, RegOpc{5}, RegOpc{4},
+ RegOpc{3}, RegOpc{2}, RegOpc{1}, 1 },
+ MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src2),
+ !strconcat("lock\n\t", mnemonic, "{w}\t",
+ "{$src2, $dst|$dst, $src2}"),
+ []>, OpSize, LOCK;
+def #NAME#32mr : I<{RegOpc{7}, RegOpc{6}, RegOpc{5}, RegOpc{4},
+ RegOpc{3}, RegOpc{2}, RegOpc{1}, 1 },
+ MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src2),
+ !strconcat("lock\n\t", mnemonic, "{l}\t",
+ "{$src2, $dst|$dst, $src2}"),
+ []>, LOCK;
+def #NAME#64mr : RI<{RegOpc{7}, RegOpc{6}, RegOpc{5}, RegOpc{4},
+ RegOpc{3}, RegOpc{2}, RegOpc{1}, 1 },
+ MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src2),
+ !strconcat("lock\n\t", mnemonic, "{q}\t",
+ "{$src2, $dst|$dst, $src2}"),
+ []>, LOCK;
+
+def #NAME#8mi : Ii8<{ImmOpc{7}, ImmOpc{6}, ImmOpc{5}, ImmOpc{4},
+ ImmOpc{3}, ImmOpc{2}, ImmOpc{1}, 0 },
+ ImmMod, (outs), (ins i8mem :$dst, i8imm :$src2),
+ !strconcat("lock\n\t", mnemonic, "{b}\t",
+ "{$src2, $dst|$dst, $src2}"),
+ []>, LOCK;
+
+def #NAME#16mi : Ii16<{ImmOpc{7}, ImmOpc{6}, ImmOpc{5}, ImmOpc{4},
+ ImmOpc{3}, ImmOpc{2}, ImmOpc{1}, 1 },
+ ImmMod, (outs), (ins i16mem :$dst, i16imm :$src2),
+ !strconcat("lock\n\t", mnemonic, "{w}\t",
+ "{$src2, $dst|$dst, $src2}"),
+ []>, LOCK;
+
+def #NAME#32mi : Ii32<{ImmOpc{7}, ImmOpc{6}, ImmOpc{5}, ImmOpc{4},
+ ImmOpc{3}, ImmOpc{2}, ImmOpc{1}, 1 },
+ ImmMod, (outs), (ins i32mem :$dst, i32imm :$src2),
+ !strconcat("lock\n\t", mnemonic, "{l}\t",
+ "{$src2, $dst|$dst, $src2}"),
+ []>, LOCK;
+
+def #NAME#64mi32 : RIi32<{ImmOpc{7}, ImmOpc{6}, ImmOpc{5}, ImmOpc{4},
+ ImmOpc{3}, ImmOpc{2}, ImmOpc{1}, 1 },
+ ImmMod, (outs), (ins i64mem :$dst, i64i32imm :$src2),
+ !strconcat("lock\n\t", mnemonic, "{q}\t",
+ "{$src2, $dst|$dst, $src2}"),
+ []>, LOCK;
+
+def #NAME#16mi8 : Ii8<{ImmOpc8{7}, ImmOpc8{6}, ImmOpc8{5}, ImmOpc8{4},
+ ImmOpc8{3}, ImmOpc8{2}, ImmOpc8{1}, 1 },
+ ImmMod, (outs), (ins i16mem :$dst, i16i8imm :$src2),
+ !strconcat("lock\n\t", mnemonic, "{w}\t",
+ "{$src2, $dst|$dst, $src2}"),
+ []>, LOCK;
+def #NAME#32mi8 : Ii8<{ImmOpc8{7}, ImmOpc8{6}, ImmOpc8{5}, ImmOpc8{4},
+ ImmOpc8{3}, ImmOpc8{2}, ImmOpc8{1}, 1 },
+ ImmMod, (outs), (ins i32mem :$dst, i32i8imm :$src2),
+ !strconcat("lock\n\t", mnemonic, "{l}\t",
+ "{$src2, $dst|$dst, $src2}"),
+ []>, LOCK;
+def #NAME#64mi8 : RIi8<{ImmOpc8{7}, ImmOpc8{6}, ImmOpc8{5}, ImmOpc8{4},
+ ImmOpc8{3}, ImmOpc8{2}, ImmOpc8{1}, 1 },
+ ImmMod, (outs), (ins i64mem :$dst, i64i8imm :$src2),
+ !strconcat("lock\n\t", mnemonic, "{q}\t",
+ "{$src2, $dst|$dst, $src2}"),
+ []>, LOCK;
+}
-def LOCK_SUB8mi : Ii8<0x80, MRM5m, (outs), (ins i8mem :$dst, i8imm:$src2),
- "lock\n\t"
- "sub{b}\t{$src2, $dst|$dst, $src2}", []>, LOCK;
-def LOCK_SUB16mi : Ii16<0x81, MRM5m, (outs), (ins i16mem:$dst, i16imm:$src2),
- "lock\n\t"
- "sub{w}\t{$src2, $dst|$dst, $src2}", []>, OpSize, LOCK;
-def LOCK_SUB32mi : Ii32<0x81, MRM5m, (outs), (ins i32mem:$dst, i32imm:$src2),
- "lock\n\t"
- "sub{l}\t{$src2, $dst|$dst, $src2}", []>, LOCK;
-def LOCK_SUB64mi32 : RIi32<0x81, MRM5m, (outs),
- (ins i64mem:$dst, i64i32imm:$src2),
- "lock\n\t"
- "sub{q}\t{$src2, $dst|$dst, $src2}", []>, LOCK;
+}
+defm LOCK_ADD : LOCK_ArithBinOp<0x00, 0x80, 0x83, MRM0m, "add">;
+defm LOCK_SUB : LOCK_ArithBinOp<0x28, 0x80, 0x83, MRM5m, "sub">;
+defm LOCK_OR : LOCK_ArithBinOp<0x08, 0x80, 0x83, MRM1m, "or">;
+defm LOCK_AND : LOCK_ArithBinOp<0x20, 0x80, 0x83, MRM4m, "and">;
+defm LOCK_XOR : LOCK_ArithBinOp<0x30, 0x80, 0x83, MRM6m, "xor">;
-def LOCK_SUB16mi8 : Ii8<0x83, MRM5m, (outs), (ins i16mem:$dst, i16i8imm :$src2),
- "lock\n\t"
- "sub{w}\t{$src2, $dst|$dst, $src2}", []>, OpSize, LOCK;
-def LOCK_SUB32mi8 : Ii8<0x83, MRM5m, (outs), (ins i32mem:$dst, i32i8imm :$src2),
- "lock\n\t"
- "sub{l}\t{$src2, $dst|$dst, $src2}", []>, LOCK;
-def LOCK_SUB64mi8 : RIi8<0x83, MRM5m, (outs),
- (ins i64mem:$dst, i64i8imm :$src2),
- "lock\n\t"
- "sub{q}\t{$src2, $dst|$dst, $src2}", []>, LOCK;
+// Optimized codegen when the non-memory output is not used.
+let Defs = [EFLAGS], mayLoad = 1, mayStore = 1, isCodeGenOnly = 1 in {
def LOCK_INC8m : I<0xFE, MRM0m, (outs), (ins i8mem :$dst),
"lock\n\t"
}
// Atomic compare and swap.
-let Defs = [EAX, EDX, EFLAGS], Uses = [EAX, EBX, ECX, EDX] in {
+let Defs = [EAX, EDX, EFLAGS], Uses = [EAX, EBX, ECX, EDX],
+ isCodeGenOnly = 1 in {
def LCMPXCHG8B : I<0xC7, MRM1m, (outs), (ins i64mem:$ptr),
"lock\n\t"
"cmpxchg8b\t$ptr",
[(X86cas8 addr:$ptr)]>, TB, LOCK;
}
-let Defs = [AL, EFLAGS], Uses = [AL] in {
+let Defs = [AL, EFLAGS], Uses = [AL], isCodeGenOnly = 1 in {
def LCMPXCHG8 : I<0xB0, MRMDestMem, (outs), (ins i8mem:$ptr, GR8:$swap),
"lock\n\t"
"cmpxchg{b}\t{$swap, $ptr|$ptr, $swap}",
[(X86cas addr:$ptr, GR8:$swap, 1)]>, TB, LOCK;
}
-let Defs = [AX, EFLAGS], Uses = [AX] in {
+let Defs = [AX, EFLAGS], Uses = [AX], isCodeGenOnly = 1 in {
def LCMPXCHG16 : I<0xB1, MRMDestMem, (outs), (ins i16mem:$ptr, GR16:$swap),
"lock\n\t"
"cmpxchg{w}\t{$swap, $ptr|$ptr, $swap}",
[(X86cas addr:$ptr, GR16:$swap, 2)]>, TB, OpSize, LOCK;
}
-let Defs = [EAX, EFLAGS], Uses = [EAX] in {
+let Defs = [EAX, EFLAGS], Uses = [EAX], isCodeGenOnly = 1 in {
def LCMPXCHG32 : I<0xB1, MRMDestMem, (outs), (ins i32mem:$ptr, GR32:$swap),
"lock\n\t"
"cmpxchg{l}\t{$swap, $ptr|$ptr, $swap}",
[(X86cas addr:$ptr, GR32:$swap, 4)]>, TB, LOCK;
}
-let Defs = [RAX, EFLAGS], Uses = [RAX] in {
+let Defs = [RAX, EFLAGS], Uses = [RAX], isCodeGenOnly = 1 in {
def LCMPXCHG64 : RI<0xB1, MRMDestMem, (outs), (ins i64mem:$ptr, GR64:$swap),
"lock\n\t"
"cmpxchgq\t$swap,$ptr",
}
// Atomic exchange and add
-let Constraints = "$val = $dst", Defs = [EFLAGS] in {
+let Constraints = "$val = $dst", Defs = [EFLAGS], isCodeGenOnly = 1 in {
def LXADD8 : I<0xC0, MRMSrcMem, (outs GR8:$dst), (ins GR8:$val, i8mem:$ptr),
"lock\n\t"
"xadd{b}\t{$val, $ptr|$ptr, $val}",
[(set VR128:$dst,
(v2i64 (X86cmov VR128:$t, VR128:$f, imm:$cond,
EFLAGS)))]>;
+ def CMOV_V8F32 : I<0, Pseudo,
+ (outs VR256:$dst), (ins VR256:$t, VR256:$f, i8imm:$cond),
+ "#CMOV_V8F32 PSEUDO!",
+ [(set VR256:$dst,
+ (v8f32 (X86cmov VR256:$t, VR256:$f, imm:$cond,
+ EFLAGS)))]>;
+ def CMOV_V4F64 : I<0, Pseudo,
+ (outs VR256:$dst), (ins VR256:$t, VR256:$f, i8imm:$cond),
+ "#CMOV_V4F64 PSEUDO!",
+ [(set VR256:$dst,
+ (v4f64 (X86cmov VR256:$t, VR256:$f, imm:$cond,
+ EFLAGS)))]>;
+ def CMOV_V4I64 : I<0, Pseudo,
+ (outs VR256:$dst), (ins VR256:$t, VR256:$f, i8imm:$cond),
+ "#CMOV_V4I64 PSEUDO!",
+ [(set VR256:$dst,
+ (v4i64 (X86cmov VR256:$t, VR256:$f, imm:$cond,
+ EFLAGS)))]>;
}
// tailcall stuff
def : Pat<(X86tcret GR32_TC:$dst, imm:$off),
(TCRETURNri GR32_TC:$dst, imm:$off)>,
- Requires<[In32BitMode]>;
+ Requires<[In32BitMode]>;
// FIXME: This is disabled for 32-bit PIC mode because the global base
// register which is part of the address mode may be assigned a
// callee-saved register.
def : Pat<(X86tcret (load addr:$dst), imm:$off),
(TCRETURNmi addr:$dst, imm:$off)>,
- Requires<[In32BitMode, IsNotPIC]>;
+ Requires<[In32BitMode, IsNotPIC]>;
def : Pat<(X86tcret (i32 tglobaladdr:$dst), imm:$off),
(TCRETURNdi texternalsym:$dst, imm:$off)>,
- Requires<[In32BitMode]>;
+ Requires<[In32BitMode]>;
def : Pat<(X86tcret (i32 texternalsym:$dst), imm:$off),
(TCRETURNdi texternalsym:$dst, imm:$off)>,
- Requires<[In32BitMode]>;
+ Requires<[In32BitMode]>;
-def : Pat<(X86tcret GR64_TC:$dst, imm:$off),
- (TCRETURNri64 GR64_TC:$dst, imm:$off)>,
- Requires<[In64BitMode]>;
+def : Pat<(X86tcret ptr_rc_tailcall:$dst, imm:$off),
+ (TCRETURNri64 ptr_rc_tailcall:$dst, imm:$off)>,
+ Requires<[In64BitMode]>;
def : Pat<(X86tcret (load addr:$dst), imm:$off),
(TCRETURNmi64 addr:$dst, imm:$off)>,
- Requires<[In64BitMode]>;
+ Requires<[In64BitMode]>;
def : Pat<(X86tcret (i64 tglobaladdr:$dst), imm:$off),
(TCRETURNdi64 tglobaladdr:$dst, imm:$off)>,
- Requires<[In64BitMode]>;
+ Requires<[In64BitMode]>;
def : Pat<(X86tcret (i64 texternalsym:$dst), imm:$off),
(TCRETURNdi64 texternalsym:$dst, imm:$off)>,
- Requires<[In64BitMode]>;
+ Requires<[In64BitMode]>;
// Normal calls, with various flavors of addresses.
def : Pat<(X86call (i32 tglobaladdr:$dst)),
def : Pat<(X86call (i32 imm:$dst)),
(CALLpcrel32 imm:$dst)>, Requires<[CallImmAddr]>;
-// X86 specific add which produces a flag.
-def : Pat<(addc GR32:$src1, GR32:$src2),
- (ADD32rr GR32:$src1, GR32:$src2)>;
-def : Pat<(addc GR32:$src1, (load addr:$src2)),
- (ADD32rm GR32:$src1, addr:$src2)>;
-def : Pat<(addc GR32:$src1, imm:$src2),
- (ADD32ri GR32:$src1, imm:$src2)>;
-def : Pat<(addc GR32:$src1, i32immSExt8:$src2),
- (ADD32ri8 GR32:$src1, i32immSExt8:$src2)>;
-
-def : Pat<(addc GR64:$src1, GR64:$src2),
- (ADD64rr GR64:$src1, GR64:$src2)>;
-def : Pat<(addc GR64:$src1, (load addr:$src2)),
- (ADD64rm GR64:$src1, addr:$src2)>;
-def : Pat<(addc GR64:$src1, i64immSExt8:$src2),
- (ADD64ri8 GR64:$src1, i64immSExt8:$src2)>;
-def : Pat<(addc GR64:$src1, i64immSExt32:$src2),
- (ADD64ri32 GR64:$src1, imm:$src2)>;
-
-def : Pat<(subc GR32:$src1, GR32:$src2),
- (SUB32rr GR32:$src1, GR32:$src2)>;
-def : Pat<(subc GR32:$src1, (load addr:$src2)),
- (SUB32rm GR32:$src1, addr:$src2)>;
-def : Pat<(subc GR32:$src1, imm:$src2),
- (SUB32ri GR32:$src1, imm:$src2)>;
-def : Pat<(subc GR32:$src1, i32immSExt8:$src2),
- (SUB32ri8 GR32:$src1, i32immSExt8:$src2)>;
-
-def : Pat<(subc GR64:$src1, GR64:$src2),
- (SUB64rr GR64:$src1, GR64:$src2)>;
-def : Pat<(subc GR64:$src1, (load addr:$src2)),
- (SUB64rm GR64:$src1, addr:$src2)>;
-def : Pat<(subc GR64:$src1, i64immSExt8:$src2),
- (SUB64ri8 GR64:$src1, i64immSExt8:$src2)>;
-def : Pat<(subc GR64:$src1, imm:$src2),
- (SUB64ri32 GR64:$src1, i64immSExt32:$src2)>;
-
// Comparisons.
// TEST R,R is smaller than CMP R,0
// anyext. Define these to do an explicit zero-extend to
// avoid partial-register updates.
-def : Pat<(i16 (anyext GR8 :$src)), (MOVZX16rr8 GR8 :$src)>;
+def : Pat<(i16 (anyext GR8 :$src)), (EXTRACT_SUBREG
+ (MOVZX32rr8 GR8 :$src), sub_16bit)>;
def : Pat<(i32 (anyext GR8 :$src)), (MOVZX32rr8 GR8 :$src)>;
// Except for i16 -> i32 since isel expect i16 ops to be promoted to i32.
// (or x1, x2) -> (add x1, x2) if two operands are known not to share bits.
let AddedComplexity = 5 in { // Try this before the selecting to OR
-let isCommutable = 1, isConvertibleToThreeAddress = 1,
+let isConvertibleToThreeAddress = 1,
Constraints = "$src1 = $dst", Defs = [EFLAGS] in {
+let isCommutable = 1 in {
def ADD16rr_DB : I<0, Pseudo, (outs GR16:$dst), (ins GR16:$src1, GR16:$src2),
"", // orw/addw REG, REG
[(set GR16:$dst, (or_is_add GR16:$src1, GR16:$src2))]>;
def ADD64rr_DB : I<0, Pseudo, (outs GR64:$dst), (ins GR64:$src1, GR64:$src2),
"", // orq/addq REG, REG
[(set GR64:$dst, (or_is_add GR64:$src1, GR64:$src2))]>;
+} // isCommutable
// NOTE: These are order specific, we want the ri8 forms to be listed
// first so that they are slightly preferred to the ri forms.
Requires<[In32BitMode]>;
// r & (2^8-1) ==> movz
def : Pat<(and GR16:$src1, 0xff),
- (MOVZX16rr8 (EXTRACT_SUBREG (i16 (COPY_TO_REGCLASS GR16:$src1,
- GR16_ABCD)),
- sub_8bit))>,
+ (EXTRACT_SUBREG (MOVZX32rr8 (EXTRACT_SUBREG
+ (i16 (COPY_TO_REGCLASS GR16:$src1, GR16_ABCD)), sub_8bit)),
+ sub_16bit)>,
Requires<[In32BitMode]>;
// r & (2^32-1) ==> movz
Requires<[In64BitMode]>;
// r & (2^8-1) ==> movz
def : Pat<(and GR16:$src1, 0xff),
- (MOVZX16rr8 (i8 (EXTRACT_SUBREG GR16:$src1, sub_8bit)))>,
+ (EXTRACT_SUBREG (MOVZX32rr8 (i8
+ (EXTRACT_SUBREG GR16:$src1, sub_8bit))), sub_16bit)>,
Requires<[In64BitMode]>;
GR32_ABCD)),
sub_8bit))>,
Requires<[In32BitMode]>;
+
def : Pat<(sext_inreg GR16:$src, i8),
- (MOVSX16rr8 (EXTRACT_SUBREG (i16 (COPY_TO_REGCLASS GR16:$src,
- GR16_ABCD)),
- sub_8bit))>,
+ (EXTRACT_SUBREG (i32 (MOVSX32rr8 (EXTRACT_SUBREG
+ (i32 (COPY_TO_REGCLASS GR16:$src, GR16_ABCD)), sub_8bit))),
+ sub_16bit)>,
Requires<[In32BitMode]>;
def : Pat<(sext_inreg GR64:$src, i32),
(MOVSX32rr8 (EXTRACT_SUBREG GR32:$src, sub_8bit))>,
Requires<[In64BitMode]>;
def : Pat<(sext_inreg GR16:$src, i8),
- (MOVSX16rr8 (i8 (EXTRACT_SUBREG GR16:$src, sub_8bit)))>,
+ (EXTRACT_SUBREG (MOVSX32rr8
+ (EXTRACT_SUBREG GR16:$src, sub_8bit)), sub_16bit)>,
Requires<[In64BitMode]>;
+// sext, sext_load, zext, zext_load
+def: Pat<(i16 (sext GR8:$src)),
+ (EXTRACT_SUBREG (MOVSX32rr8 GR8:$src), sub_16bit)>;
+def: Pat<(sextloadi16i8 addr:$src),
+ (EXTRACT_SUBREG (MOVSX32rm8 addr:$src), sub_16bit)>;
+def: Pat<(i16 (zext GR8:$src)),
+ (EXTRACT_SUBREG (MOVZX32rr8 GR8:$src), sub_16bit)>;
+def: Pat<(zextloadi16i8 addr:$src),
+ (EXTRACT_SUBREG (MOVZX32rm8 addr:$src), sub_16bit)>;
// trunc patterns
def : Pat<(i16 (trunc GR32:$src)),
// (shl x, 1) ==> (add x, x)
+// Note that if x is undef (immediate or otherwise), we could theoretically
+// end up with the two uses of x getting different values, producing a result
+// where the least significant bit is not 0. However, the probability of this
+// happening is considered low enough that this is officially not a
+// "real problem".
def : Pat<(shl GR8 :$src1, (i8 1)), (ADD8rr GR8 :$src1, GR8 :$src1)>;
def : Pat<(shl GR16:$src1, (i8 1)), (ADD16rr GR16:$src1, GR16:$src1)>;
def : Pat<(shl GR32:$src1, (i8 1)), (ADD32rr GR32:$src1, GR32:$src1)>;
def : Pat<(mul (loadi32 addr:$src1), i32immSExt8:$src2),
(IMUL32rmi8 addr:$src1, i32immSExt8:$src2)>;
-// Optimize multiply by 2 with EFLAGS result.
-let AddedComplexity = 2 in {
-def : Pat<(X86smul_flag GR16:$src1, 2), (ADD16rr GR16:$src1, GR16:$src1)>;
-def : Pat<(X86smul_flag GR32:$src1, 2), (ADD32rr GR32:$src1, GR32:$src1)>;
-}
-
// Patterns for nodes that do not produce flags, for instructions that do.
// addition
(AND64ri8 GR64:$src1, i64immSExt8:$src2)>;
def : Pat<(and GR64:$src1, i64immSExt32:$src2),
(AND64ri32 GR64:$src1, i64immSExt32:$src2)>;
-
projects / oota-llvm.git / blobdiff