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target/arm: Use tcg_gen_deposit_i32 for PKHBT, PKHTB
Use deposit as the composit operation to merge the bits from the two inputs. Backports commit d1f8755fc93911f5b27246b1da794542d222fa1b from qemu
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@ -8937,19 +8937,16 @@ static void disas_arm_insn(DisasContext *s, unsigned int insn)
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shift = (insn >> 7) & 0x1f;
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if (insn & (1 << 6)) {
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/* pkhtb */
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if (shift == 0)
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if (shift == 0) {
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shift = 31;
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}
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tcg_gen_sari_i32(tcg_ctx, tmp2, tmp2, shift);
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tcg_gen_andi_i32(tcg_ctx, tmp, tmp, 0xffff0000);
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tcg_gen_ext16u_i32(tcg_ctx, tmp2, tmp2);
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tcg_gen_deposit_i32(tcg_ctx, tmp, tmp, tmp2, 0, 16);
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} else {
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/* pkhbt */
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if (shift)
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tcg_gen_shli_i32(tcg_ctx, tmp2, tmp2, shift);
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tcg_gen_ext16u_i32(tcg_ctx, tmp, tmp);
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tcg_gen_andi_i32(tcg_ctx, tmp2, tmp2, 0xffff0000);
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tcg_gen_shli_i32(tcg_ctx, tmp2, tmp2, shift);
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tcg_gen_deposit_i32(tcg_ctx, tmp, tmp2, tmp, 0, 16);
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}
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tcg_gen_or_i32(tcg_ctx, tmp, tmp, tmp2);
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tcg_temp_free_i32(tcg_ctx, tmp2);
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store_reg(s, rd, tmp);
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} else if ((insn & 0x00200020) == 0x00200000) {
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@ -9981,19 +9978,16 @@ static void disas_thumb2_insn(DisasContext *s, uint32_t insn)
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shift = ((insn >> 10) & 0x1c) | ((insn >> 6) & 0x3);
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if (insn & (1 << 5)) {
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/* pkhtb */
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if (shift == 0)
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if (shift == 0) {
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shift = 31;
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}
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tcg_gen_sari_i32(tcg_ctx, tmp2, tmp2, shift);
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tcg_gen_andi_i32(tcg_ctx, tmp, tmp, 0xffff0000);
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tcg_gen_ext16u_i32(tcg_ctx, tmp2, tmp2);
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tcg_gen_deposit_i32(tcg_ctx, tmp, tmp, tmp2, 0, 16);
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} else {
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/* pkhbt */
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if (shift)
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tcg_gen_shli_i32(tcg_ctx, tmp2, tmp2, shift);
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tcg_gen_ext16u_i32(tcg_ctx, tmp, tmp);
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tcg_gen_andi_i32(tcg_ctx, tmp2, tmp2, 0xffff0000);
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tcg_gen_shli_i32(tcg_ctx, tmp2, tmp2, shift);
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tcg_gen_deposit_i32(tcg_ctx, tmp, tmp2, tmp, 0, 16);
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}
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tcg_gen_or_i32(tcg_ctx, tmp, tmp, tmp2);
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tcg_temp_free_i32(tcg_ctx, tmp2);
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store_reg(s, rd, tmp);
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} else {
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