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tcg/ppc: Prefer mask over andi.
Prefer the instruction that isn't required to modify cr0. Backports commit 1e1df962e325e18a5188c4814cd1a10215a48f79 from qemu
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3c3dee3747
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@ -706,14 +706,14 @@ static void tcg_out_andi32(TCGContext *s, TCGReg dst, TCGReg src, uint32_t c)
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{
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int mb, me;
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if ((c & 0xffff) == c) {
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if (mask_operand(c, &mb, &me)) {
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tcg_out_rlw(s, RLWINM, dst, src, 0, mb, me);
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} else if ((c & 0xffff) == c) {
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tcg_out32(s, ANDI | SAI(src, dst, c));
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return;
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} else if ((c & 0xffff0000) == c) {
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tcg_out32(s, ANDIS | SAI(src, dst, c >> 16));
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return;
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} else if (mask_operand(c, &mb, &me)) {
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tcg_out_rlw(s, RLWINM, dst, src, 0, mb, me);
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} else {
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tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_R0, c);
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tcg_out32(s, AND | SAB(src, dst, TCG_REG_R0));
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@ -725,18 +725,18 @@ static void tcg_out_andi64(TCGContext *s, TCGReg dst, TCGReg src, uint64_t c)
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int mb, me;
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assert(TCG_TARGET_REG_BITS == 64);
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if ((c & 0xffff) == c) {
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tcg_out32(s, ANDI | SAI(src, dst, c));
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return;
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} else if ((c & 0xffff0000) == c) {
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tcg_out32(s, ANDIS | SAI(src, dst, c >> 16));
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return;
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} else if (mask64_operand(c, &mb, &me)) {
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if (mask64_operand(c, &mb, &me)) {
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if (mb == 0) {
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tcg_out_rld(s, RLDICR, dst, src, 0, me);
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} else {
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tcg_out_rld(s, RLDICL, dst, src, 0, mb);
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}
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} else if ((c & 0xffff) == c) {
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tcg_out32(s, ANDI | SAI(src, dst, c));
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return;
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} else if ((c & 0xffff0000) == c) {
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tcg_out32(s, ANDIS | SAI(src, dst, c >> 16));
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return;
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} else {
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tcg_out_movi(s, TCG_TYPE_I64, TCG_REG_R0, c);
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tcg_out32(s, AND | SAB(src, dst, TCG_REG_R0));
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