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X86: disable printing of bare "mov" aliases

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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
This commit is contained in:
Tim Northover 2014-05-16 09:41:26 +00:00
parent 78a667d085
commit 5d25da20e1
1 changed files with 3 additions and 3 deletions
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6
lib/Target/X86/X86InstrInfo.td
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@ -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",