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[Qemu-devel] [PATCH 3/7] target/xtensa: don't continue translation after


From: Max Filippov
Subject: [Qemu-devel] [PATCH 3/7] target/xtensa: don't continue translation after exception
Date: Sun, 15 Jan 2017 13:10:13 -0800

There's no point in continuing translating guest instructions once an
unconditional exception is thrown.
There's also no point in updating pc before any instruction is
translated, don't do it.

Signed-off-by: Max Filippov <address@hidden>
---
 target/xtensa/translate.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/target/xtensa/translate.c b/target/xtensa/translate.c
index 96c64d6..7a198fa 100644
--- a/target/xtensa/translate.c
+++ b/target/xtensa/translate.c
@@ -3152,8 +3152,11 @@ void gen_intermediate_code(CPUXtensaState *env, 
TranslationBlock *tb)
         goto done;
     }
     if (tb->flags & XTENSA_TBFLAG_EXCEPTION) {
-        tcg_gen_movi_i32(cpu_pc, dc.pc);
+        tcg_gen_insn_start(dc.pc);
+        ++insn_count;
         gen_exception(&dc, EXCP_DEBUG);
+        dc.is_jmp = DISAS_UPDATE;
+        goto done;
     }
 
     do {
-- 
2.1.4




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