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| author | Richard Henderson | 2013-07-31 06:26:04 +0200 |
|---|---|---|
| committer | Richard Henderson | 2013-09-25 16:46:32 +0200 |
| commit | f8b84129073d600cef20d526814b9bdd15c2e1ba (patch) | |
| tree | 9a5b2f9a47ac5131f4a7adc632eb91e91a47d370 /tcg/ppc64/tcg-target.c | |
| parent | tcg-ppc64: Use tcg_out64 (diff) | |
| download | qemu-f8b84129073d600cef20d526814b9bdd15c2e1ba.tar.gz qemu-f8b84129073d600cef20d526814b9bdd15c2e1ba.tar.xz qemu-f8b84129073d600cef20d526814b9bdd15c2e1ba.zip | |
tcg-ppc64: 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>
Diffstat (limited to 'tcg/ppc64/tcg-target.c')
| -rw-r--r-- | tcg/ppc64/tcg-target.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/tcg/ppc64/tcg-target.c b/tcg/ppc64/tcg-target.c index 27a955ba2a..357f8c11de 100644 --- a/tcg/ppc64/tcg-target.c +++ b/tcg/ppc64/tcg-target.c @@ -509,7 +509,9 @@ static const uint32_t tcg_to_isel[] = { static inline 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 inline void tcg_out_rld(TCGContext *s, int op, TCGReg ra, TCGReg rs, |