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tcg-ppc64: bswap64 rotates output 32 bits

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If our input and output is in the same register, bswap64 tries to
undo a rotate of the input. This just ends up rotating the output.

Cc: qemu-stable@nongnu.org
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Anton Blanchard 2013-06-02 22:28:27 +10:00 committed by Richard Henderson
parent 8a94cfb05e
commit 82e0f9170a
1 changed files with 0 additions and 2 deletions
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2
tcg/ppc64/tcg-target.c
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@ -1923,8 +1923,6 @@ static void tcg_out_op (TCGContext *s, TCGOpcode opc, const TCGArg *args,
if (a0 == 0) {
tcg_out_mov(s, TCG_TYPE_I64, args[0], a0);
/* Revert the source rotate that we performed above. */
tcg_out_rld(s, RLDICL, a1, a1, 32, 0);
}
break;