X86: disable printing of bare "mov" aliases

In AT&T syntax, we should probably print the full "movl" or "movw". TableGen
used to ignore these aliases because it was miscounting the number of operands.
This fixes the issue.

This will be tested when the TableGen "should I print this Alias"
heuristic is fixed (very soon).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208963 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/X86/X86InstrInfo.td b/lib/Target/X86/X86InstrInfo.td
index ac7805f1cccb2d9245b7664966f45b95e4772375..23cd496adeb55aed432ce48392a64b688bf115e5 100644 (file)
--- a/lib/Target/X86/X86InstrInfo.td
+++ b/lib/Target/X86/X86InstrInfo.td
@@ -2685,11 +2685,11 @@ def : InstAlias<"jmpl $seg, $off",  (FARJMP32i  i32imm:$off, i16imm:$seg)>;
 // 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 $mem, $seg", (MOV32sm SEGMENT_REG:$seg, i32mem:$mem)>;
-def : InstAlias<"mov $seg, $mem", (MOV32ms i32mem:$mem, SEGMENT_REG:$seg)>;
+def : InstAlias<"mov $mem, $seg", (MOV32sm SEGMENT_REG:$seg, i32mem:$mem), 0>;
+def : InstAlias<"mov $seg, $mem", (MOV32ms i32mem:$mem, SEGMENT_REG:$seg), 0>;
 
 // Match 'movq <largeimm>, <reg>' as an alias for movabsq.
-def : InstAlias<"movq $imm, $reg", (MOV64ri GR64:$reg, i64imm:$imm)>;
+def : InstAlias<"movq $imm, $reg", (MOV64ri GR64:$reg, i64imm:$imm), 0>;
 
 // Match 'movq GR64, MMX' as an alias for movd.
 def : InstAlias<"movq $src, $dst",