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tcg/s390: Remove retranslation code
There is no longer a need for preserving branch offset operands, as we no longer re-translate. Backports commit 3661612fc3e4b65be03482bf6bafd116101881e1 from qemu
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@ -1334,13 +1334,11 @@ static void tgen_branch(TCGContext *s, int cc, TCGLabel *l)
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static void tgen_compare_branch(TCGContext *s, S390Opcode opc, int cc,
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TCGReg r1, TCGReg r2, TCGLabel *l)
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{
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intptr_t off;
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intptr_t off = 0;
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if (l->has_value) {
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off = l->u.value_ptr - s->code_ptr;
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} else {
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/* We need to keep the offset unchanged for retranslation. */
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off = s->code_ptr[1];
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tcg_out_reloc(s, s->code_ptr + 1, R_390_PC16DBL, l, 2);
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}
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@ -1352,13 +1350,11 @@ static void tgen_compare_branch(TCGContext *s, S390Opcode opc, int cc,
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static void tgen_compare_imm_branch(TCGContext *s, S390Opcode opc, int cc,
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TCGReg r1, int i2, TCGLabel *l)
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{
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tcg_target_long off;
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tcg_target_long off = 0;
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if (l->has_value) {
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off = l->u.value_ptr - s->code_ptr;
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} else {
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/* We need to keep the offset unchanged for retranslation. */
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off = s->code_ptr[1];
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tcg_out_reloc(s, s->code_ptr + 1, R_390_PC16DBL, l, 2);
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}
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@ -1702,7 +1698,6 @@ static void tcg_out_qemu_ld(TCGContext* s, TCGReg data_reg, TCGReg addr_reg,
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base_reg = tcg_out_tlb_read(s, addr_reg, opc, mem_index, 1);
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/* We need to keep the offset unchanged for retranslation. */
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tcg_out16(s, RI_BRC | (S390_CC_NE << 4));
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label_ptr = s->code_ptr;
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s->code_ptr += 1;
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@ -1730,7 +1725,6 @@ static void tcg_out_qemu_st(TCGContext* s, TCGReg data_reg, TCGReg addr_reg,
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base_reg = tcg_out_tlb_read(s, addr_reg, opc, mem_index, 0);
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/* We need to keep the offset unchanged for retranslation. */
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tcg_out16(s, RI_BRC | (S390_CC_NE << 4));
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label_ptr = s->code_ptr;
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s->code_ptr += 1;
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