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[Qemu-devel] [PULL 08/32] tcg/s390: Remove retranslation code
From: |
Richard Henderson |
Subject: |
[Qemu-devel] [PULL 08/32] tcg/s390: Remove retranslation code |
Date: |
Thu, 13 Dec 2018 21:18:59 -0600 |
There is no longer a need for preserving branch offset operands,
as we no longer re-translate.
Reviewed-by: Alex Bennée <address@hidden>
Signed-off-by: Richard Henderson <address@hidden>
---
tcg/s390/tcg-target.inc.c | 10 ++--------
1 file changed, 2 insertions(+), 8 deletions(-)
diff --git a/tcg/s390/tcg-target.inc.c b/tcg/s390/tcg-target.inc.c
index 17c435ade5..96c344142e 100644
--- a/tcg/s390/tcg-target.inc.c
+++ b/tcg/s390/tcg-target.inc.c
@@ -1329,13 +1329,11 @@ static void tgen_branch(TCGContext *s, int cc, TCGLabel
*l)
static void tgen_compare_branch(TCGContext *s, S390Opcode opc, int cc,
TCGReg r1, TCGReg r2, TCGLabel *l)
{
- intptr_t off;
+ intptr_t off = 0;
if (l->has_value) {
off = l->u.value_ptr - s->code_ptr;
} else {
- /* We need to keep the offset unchanged for retranslation. */
- off = s->code_ptr[1];
tcg_out_reloc(s, s->code_ptr + 1, R_390_PC16DBL, l, 2);
}
@@ -1347,13 +1345,11 @@ static void tgen_compare_branch(TCGContext *s,
S390Opcode opc, int cc,
static void tgen_compare_imm_branch(TCGContext *s, S390Opcode opc, int cc,
TCGReg r1, int i2, TCGLabel *l)
{
- tcg_target_long off;
+ tcg_target_long off = 0;
if (l->has_value) {
off = l->u.value_ptr - s->code_ptr;
} else {
- /* We need to keep the offset unchanged for retranslation. */
- off = s->code_ptr[1];
tcg_out_reloc(s, s->code_ptr + 1, R_390_PC16DBL, l, 2);
}
@@ -1696,7 +1692,6 @@ static void tcg_out_qemu_ld(TCGContext* s, TCGReg
data_reg, TCGReg addr_reg,
base_reg = tcg_out_tlb_read(s, addr_reg, opc, mem_index, 1);
- /* We need to keep the offset unchanged for retranslation. */
tcg_out16(s, RI_BRC | (S390_CC_NE << 4));
label_ptr = s->code_ptr;
s->code_ptr += 1;
@@ -1724,7 +1719,6 @@ static void tcg_out_qemu_st(TCGContext* s, TCGReg
data_reg, TCGReg addr_reg,
base_reg = tcg_out_tlb_read(s, addr_reg, opc, mem_index, 0);
- /* We need to keep the offset unchanged for retranslation. */
tcg_out16(s, RI_BRC | (S390_CC_NE << 4));
label_ptr = s->code_ptr;
s->code_ptr += 1;
--
2.17.2
- [Qemu-devel] [PULL 00/32] tcg patch queue, Richard Henderson, 2018/12/13
- [Qemu-devel] [PULL 02/32] tcg/i386: Move TCG_REG_CALL_STACK from define to enum, Richard Henderson, 2018/12/13
- [Qemu-devel] [PATCH] fixup! target/arm: Move id_aa64mmfr* to ARMISARegisters, Richard Henderson, 2018/12/13
- [Qemu-devel] [PULL 01/32] tcg/i386: Always use %ebp for TCG_AREG0, Richard Henderson, 2018/12/13
- [Qemu-devel] [PULL 03/32] tcg/aarch64: Remove reloc_pc26_atomic, Richard Henderson, 2018/12/13
- [Qemu-devel] [PULL 05/32] tcg/arm: Remove reloc_pc24_atomic, Richard Henderson, 2018/12/13
- [Qemu-devel] [PULL 04/32] tcg/aarch64: Fold away "noaddr" branch routines, Richard Henderson, 2018/12/13
- [Qemu-devel] [PULL 06/32] tcg/arm: Fold away "noaddr" branch routines, Richard Henderson, 2018/12/13
- [Qemu-devel] [PULL 07/32] tcg/ppc: Fold away "noaddr" branch routines, Richard Henderson, 2018/12/13
- [Qemu-devel] [PULL 08/32] tcg/s390: Remove retranslation code,
Richard Henderson <=
- [Qemu-devel] [PULL 10/32] tcg/mips: Remove retranslation code, Richard Henderson, 2018/12/13
- [Qemu-devel] [PULL 09/32] tcg/sparc: Remove retranslation code, Richard Henderson, 2018/12/13
- [Qemu-devel] [PULL 12/32] tcg/i386: Return false on failure from patch_reloc, Richard Henderson, 2018/12/13
- [Qemu-devel] [PULL 11/32] tcg: Return success from patch_reloc, Richard Henderson, 2018/12/13
- [Qemu-devel] [PULL 14/32] tcg/arm: Return false on failure from patch_reloc, Richard Henderson, 2018/12/13
- [Qemu-devel] [PULL 13/32] tcg/aarch64: Return false on failure from patch_reloc, Richard Henderson, 2018/12/13
- [Qemu-devel] [PULL 15/32] tcg/ppc: Return false on failure from patch_reloc, Richard Henderson, 2018/12/13
- [Qemu-devel] [PULL 17/32] tcg/i386: Propagate is64 to tcg_out_qemu_ld_direct, Richard Henderson, 2018/12/13
- [Qemu-devel] [PULL 16/32] tcg/s390x: Return false on failure from patch_reloc, Richard Henderson, 2018/12/13
- [Qemu-devel] [PULL 19/32] tcg/i386: Implement INDEX_op_extr{lh}_i64_i32 for 32-bit guests, Richard Henderson, 2018/12/13