// jecxz.
let Uses = [CX] in
def JCXZ : Ii8PCRel<0xE3, RawFrm, (outs), (ins brtarget8:$dst),
- "jcxz\t$dst", [], IIC_JCXZ>, AdSize16;
+ "jcxz\t$dst", [], IIC_JCXZ>, AdSize16,
+ Requires<[Not64BitMode]>;
let Uses = [ECX] in
def JECXZ : Ii8PCRel<0xE3, RawFrm, (outs), (ins brtarget8:$dst),
"jecxz\t$dst", [], IIC_JCXZ>, AdSize32;
let Uses = [RCX] in
def JRCXZ : Ii8PCRel<0xE3, RawFrm, (outs), (ins brtarget8:$dst),
- "jrcxz\t$dst", [], IIC_JCXZ>, AdSize64;
+ "jrcxz\t$dst", [], IIC_JCXZ>, AdSize64,
+ Requires<[In64BitMode]>;
}
// Indirect branches
// mcinst.
def TAILJMPd : Ii32PCRel<0xE9, RawFrm, (outs),
(ins i32imm_pcrel:$dst),
- "jmp\t$dst # TAILCALL",
+ "jmp\t$dst",
[], IIC_JMP_REL>;
def TAILJMPr : I<0xFF, MRM4r, (outs), (ins ptr_rc_tailcall:$dst),
"", [], IIC_JMP_REG>; // FIXME: Remove encoding when JIT is dead.
let mayLoad = 1 in
def TAILJMPm : I<0xFF, MRM4m, (outs), (ins i32mem_TC:$dst),
- "jmp{l}\t{*}$dst # TAILCALL", [], IIC_JMP_MEM>;
+ "jmp{l}\t{*}$dst", [], IIC_JMP_MEM>;
}
def TCRETURNmi64 : PseudoI<(outs),
(ins i64mem_TC:$dst, i32imm:$offset), []>;
- def TAILJMPd64 : Ii32PCRel<0xE9, RawFrm, (outs),
- (ins i64i32imm_pcrel:$dst),
- "jmp\t$dst # TAILCALL", [], IIC_JMP_REL>;
+ def TAILJMPd64 : Ii32PCRel<0xE9, RawFrm, (outs), (ins i64i32imm_pcrel:$dst),
+ "jmp\t$dst", [], IIC_JMP_REL>;
def TAILJMPr64 : I<0xFF, MRM4r, (outs), (ins ptr_rc_tailcall:$dst),
- "jmp{q}\t{*}$dst # TAILCALL", [], IIC_JMP_MEM>;
+ "jmp{q}\t{*}$dst", [], IIC_JMP_MEM>;
let mayLoad = 1 in
def TAILJMPm64 : I<0xFF, MRM4m, (outs), (ins i64mem_TC:$dst),
- "jmp{q}\t{*}$dst # TAILCALL", [], IIC_JMP_MEM>;
+ "jmp{q}\t{*}$dst", [], IIC_JMP_MEM>;
+
+ // Win64 wants jumps leaving the function to have a REX_W prefix.
+ let hasREX_WPrefix = 1 in {
+ def TAILJMPd64_REX : Ii32PCRel<0xE9, RawFrm, (outs),
+ (ins i64i32imm_pcrel:$dst),
+ "rex64 jmp\t$dst", [], IIC_JMP_REL>;
+ def TAILJMPr64_REX : I<0xFF, MRM4r, (outs), (ins ptr_rc_tailcall:$dst),
+ "rex64 jmp{q}\t{*}$dst", [], IIC_JMP_MEM>;
+
+ let mayLoad = 1 in
+ def TAILJMPm64_REX : I<0xFF, MRM4m, (outs), (ins i64mem_TC:$dst),
+ "rex64 jmp{q}\t{*}$dst", [], IIC_JMP_MEM>;
+ }
}