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declare saved_env_reg as volatile

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This ensures that the compiler does not move it away from
the "env = env1;" assignment.  Fixes a miscompilation
on gcc 4.4, reported by Jay Foad.

Cc: <jay.foad@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Paolo Bonzini 2010-02-23 19:21:00 +01:00 committed by Anthony Liguori
parent 3399e30f56
commit 1d9000e823
1 changed files with 1 additions and 1 deletions
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2
cpu-exec.c
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@ -210,7 +210,7 @@ static void cpu_handle_debug_exception(CPUState *env)
int cpu_exec(CPUState *env1) int cpu_exec(CPUState *env1)
{ {
host_reg_t saved_env_reg; volatile host_reg_t saved_env_reg;
int ret, interrupt_request; int ret, interrupt_request;
TranslationBlock *tb; TranslationBlock *tb;
uint8_t *tc_ptr; uint8_t *tc_ptr;