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Add jumps with 8-bit relocation for assembler / disassembler. Patch by Sean Callanan.

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llvm-svn: 76536
This commit is contained in:
Evan Cheng 2009-07-21 06:00:18 +00:00
parent 0cf19155ef
commit d76397061a
1 changed files with 24 additions and 0 deletions
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24
lib/Target/X86/X86InstrInfo.td
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@ -218,6 +218,10 @@ def brtarget : Operand<OtherVT> {
let PrintMethod = "print_pcrel_imm";
}
def brtarget8 : Operand<OtherVT> {
let PrintMethod = "print_pcrel_imm";
}
//===----------------------------------------------------------------------===//
// X86 Complex Pattern Definitions.
//
@ -527,6 +531,26 @@ let isBranch = 1, isTerminator = 1, isBarrier = 1, isIndirectBranch = 1 in {
// Conditional branches
let Uses = [EFLAGS] in {
// Short conditional jumps
def JO8 : IBr<0x70, (ins brtarget8:$dst), "jo\t$dst", []>;
def JNO8 : IBr<0x71, (ins brtarget8:$dst), "jno\t$dst", []>;
def JB8 : IBr<0x72, (ins brtarget8:$dst), "jb\t$dst", []>;
def JAE8 : IBr<0x73, (ins brtarget8:$dst), "jae\t$dst", []>;
def JE8 : IBr<0x74, (ins brtarget8:$dst), "je\t$dst", []>;
def JNE8 : IBr<0x75, (ins brtarget8:$dst), "jne\t$dst", []>;
def JBE8 : IBr<0x76, (ins brtarget8:$dst), "jbe\t$dst", []>;
def JA8 : IBr<0x77, (ins brtarget8:$dst), "ja\t$dst", []>;
def JS8 : IBr<0x78, (ins brtarget8:$dst), "js\t$dst", []>;
def JNS8 : IBr<0x79, (ins brtarget8:$dst), "jns\t$dst", []>;
def JP8 : IBr<0x7A, (ins brtarget8:$dst), "jp\t$dst", []>;
def JNP8 : IBr<0x7B, (ins brtarget8:$dst), "jnp\t$dst", []>;
def JL8 : IBr<0x7C, (ins brtarget8:$dst), "jl\t$dst", []>;
def JGE8 : IBr<0x7D, (ins brtarget8:$dst), "jge\t$dst", []>;
def JLE8 : IBr<0x7E, (ins brtarget8:$dst), "jle\t$dst", []>;
def JG8 : IBr<0x7F, (ins brtarget8:$dst), "jg\t$dst", []>;
def JCXZ8 : IBr<0xE3, (ins brtarget8:$dst), "jcxz\t$dst", []>;
def JE : IBr<0x84, (ins brtarget:$dst), "je\t$dst",
[(X86brcond bb:$dst, X86_COND_E, EFLAGS)]>, TB;
def JNE : IBr<0x85, (ins brtarget:$dst), "jne\t$dst",