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[Qemu-devel] [PULL 07/22] target/arm: Reset btype for direct branches
From: |
Peter Maydell |
Subject: |
[Qemu-devel] [PULL 07/22] target/arm: Reset btype for direct branches |
Date: |
Tue, 5 Feb 2019 17:04:55 +0000 |
From: Richard Henderson <address@hidden>
This is all of the non-exception cases of DISAS_NORETURN.
Signed-off-by: Richard Henderson <address@hidden>
Reviewed-by: Peter Maydell <address@hidden>
Message-id: address@hidden
Signed-off-by: Peter Maydell <address@hidden>
---
target/arm/translate-a64.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
index 7034fb3d129..5d0341a6953 100644
--- a/target/arm/translate-a64.c
+++ b/target/arm/translate-a64.c
@@ -1362,6 +1362,7 @@ static void disas_uncond_b_imm(DisasContext *s, uint32_t
insn)
}
/* B Branch / BL Branch with link */
+ reset_btype(s);
gen_goto_tb(s, 0, addr);
}
@@ -1386,6 +1387,7 @@ static void disas_comp_b_imm(DisasContext *s, uint32_t
insn)
tcg_cmp = read_cpu_reg(s, rt, sf);
label_match = gen_new_label();
+ reset_btype(s);
tcg_gen_brcondi_i64(op ? TCG_COND_NE : TCG_COND_EQ,
tcg_cmp, 0, label_match);
@@ -1415,6 +1417,8 @@ static void disas_test_b_imm(DisasContext *s, uint32_t
insn)
tcg_cmp = tcg_temp_new_i64();
tcg_gen_andi_i64(tcg_cmp, cpu_reg(s, rt), (1ULL << bit_pos));
label_match = gen_new_label();
+
+ reset_btype(s);
tcg_gen_brcondi_i64(op ? TCG_COND_NE : TCG_COND_EQ,
tcg_cmp, 0, label_match);
tcg_temp_free_i64(tcg_cmp);
@@ -1441,6 +1445,7 @@ static void disas_cond_b_imm(DisasContext *s, uint32_t
insn)
addr = s->pc + sextract32(insn, 5, 19) * 4 - 4;
cond = extract32(insn, 0, 4);
+ reset_btype(s);
if (cond < 0x0e) {
/* genuinely conditional branches */
TCGLabel *label_match = gen_new_label();
@@ -1605,6 +1610,7 @@ static void handle_sync(DisasContext *s, uint32_t insn,
* a self-modified code correctly and also to take
* any pending interrupts immediately.
*/
+ reset_btype(s);
gen_goto_tb(s, 0, s->pc);
return;
default:
--
2.20.1
- [Qemu-devel] [PULL 00/22] target-arm queue, Peter Maydell, 2019/02/05
- [Qemu-devel] [PULL 02/22] target/arm: Add PSTATE.BTYPE, Peter Maydell, 2019/02/05
- [Qemu-devel] [PULL 10/22] linux-user: Implement PR_PAC_RESET_KEYS, Peter Maydell, 2019/02/05
- [Qemu-devel] [PULL 21/22] hw/arm/boot: Support DTB autoload for firmware-only boots, Peter Maydell, 2019/02/05
- [Qemu-devel] [PULL 01/22] target/arm: Introduce isar_feature_aa64_bti, Peter Maydell, 2019/02/05
- [Qemu-devel] [PULL 15/22] target/arm: Enable TBI for user-only, Peter Maydell, 2019/02/05
- [Qemu-devel] [PULL 04/22] exec: Add target-specific tlb bits to MemTxAttrs, Peter Maydell, 2019/02/05
- [Qemu-devel] [PULL 07/22] target/arm: Reset btype for direct branches,
Peter Maydell <=
- [Qemu-devel] [PULL 09/22] target/arm: Enable BTI for -cpu max, Peter Maydell, 2019/02/05
- [Qemu-devel] [PULL 14/22] target/arm: Compute TB_FLAGS for TBI for user-only, Peter Maydell, 2019/02/05
- [Qemu-devel] [PULL 19/22] hw/arm/boot: Factor out "set up firmware boot" code, Peter Maydell, 2019/02/05
- [Qemu-devel] [PULL 12/22] target/arm: Add TBFLAG_A64_TBID, split out gen_top_byte_ignore, Peter Maydell, 2019/02/05
- [Qemu-devel] [PULL 03/22] target/arm: Add BT and BTYPE to tb->flags, Peter Maydell, 2019/02/05
- [Qemu-devel] [PULL 06/22] target/arm: Default handling of BTYPE during translation, Peter Maydell, 2019/02/05
- [Qemu-devel] [PULL 16/22] gdbstub: allow killing QEMU via vKill command, Peter Maydell, 2019/02/05
- [Qemu-devel] [PULL 11/22] tests/tcg/aarch64: Add pauth smoke test, Peter Maydell, 2019/02/05