[X86] Remove unnecessary InstAliases. NFCI

These used to disambiguate MOV16ms/MOV16sm from other size instructions that no longer exist.

llvm-svn: 331134

diff --git a/llvm/lib/Target/X86/X86InstrInfo.td b/llvm/lib/Target/X86/X86InstrInfo.td
index 362eb6f..0cdf7ad 100644 (file)
--- a/llvm/lib/Target/X86/X86InstrInfo.td
+++ b/llvm/lib/Target/X86/X86InstrInfo.td
@@ -3214,12 +3214,6 @@ def : InstAlias<"jmpw\t$seg, $off",  (FARJMP16i  i16imm:$off, i16imm:$seg)>, Req
 def : InstAlias<"calll\t$seg, $off", (FARCALL32i i32imm:$off, i16imm:$seg)>, Requires<[Not64BitMode]>;
 def : InstAlias<"jmpl\t$seg, $off",  (FARJMP32i  i32imm:$off, i16imm:$seg)>, Requires<[Not64BitMode]>;
 
-// Force mov without a suffix with a segment and mem to prefer the 'l' form of
-// the move.  All segment/mem forms are equivalent, this has the shortest
-// encoding.
-def : InstAlias<"mov\t{$mem, $seg|$seg, $mem}", (MOV16sm SEGMENT_REG:$seg, i16mem:$mem), 0>;
-def : InstAlias<"mov\t{$seg, $mem|$mem, $seg}", (MOV16ms i16mem:$mem, SEGMENT_REG:$seg), 0>;
-
 // Match 'movq <largeimm>, <reg>' as an alias for movabsq.
 def : InstAlias<"mov{q}\t{$imm, $reg|$reg, $imm}", (MOV64ri GR64:$reg, i64imm:$imm), 0>;