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tcg-ppc: Avoid code for nop move 

While these are rare from code that's been through the optimizer,
it's not uncommon within the tcg backend.

Signed-off-by: Richard Henderson <rth@twiddle.net>
master
Richard Henderson 2013-08-28 15:51:08 -07:00
parent 619f90ba62
commit 4b2b114d8c
1 changed files with 3 additions and 1 deletions
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4
tcg/ppc/tcg-target.c
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@ -450,7 +450,9 @@ static const uint32_t tcg_to_bc[] = {
static void tcg_out_mov(TCGContext *s, TCGType type, TCGReg ret, TCGReg arg)
{
tcg_out32 (s, OR | SAB (arg, ret, arg));
if (ret != arg) {
tcg_out32(s, OR | SAB(arg, ret, arg));
}
}
static void tcg_out_movi(TCGContext *s, TCGType type,