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target/arm: Don't read r4 from v8M exception stackframe twice 

A cut-and-paste error meant we were reading r4 from the v8M
callee-saves exception stack frame twice. This is harmless
since it just meant we did two memory accesses to the same
location, but it's unnecessary. Delete it.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20181002150304.2287-1-peter.maydell@linaro.org
master
Peter Maydell 2018-10-08 14:55:02 +01:00
parent 7b73a1ca05
commit e5ae4d0c06
1 changed files with 0 additions and 1 deletions
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target/arm/helper.c
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@ -7303,7 +7303,6 @@ static void do_v7m_exception_exit(ARMCPU *cpu)
}
pop_ok = pop_ok &&
v7m_stack_read(cpu, &env->regs[4], frameptr + 0x8, mmu_idx) &&
v7m_stack_read(cpu, &env->regs[4], frameptr + 0x8, mmu_idx) &&
v7m_stack_read(cpu, &env->regs[5], frameptr + 0xc, mmu_idx) &&
v7m_stack_read(cpu, &env->regs[6], frameptr + 0x10, mmu_idx) &&