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tcg: Delete unused cpu_pc_from_tb()

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No code uses the cpu_pc_from_tb() function. Delete from tricore and
arm which each provide an unused implementation. Update the comment
in tcg.h to reflect that this is obsoleted by synchronize_from_tb.

Backports commit fee068e4f190a36ef3bda9aa7c802f90434ef8e5 from qemu
This commit is contained in:
Peter Crosthwaite 2018-02-12 21:13:51 -05:00 committed by Lioncash
parent 8adf6aff7c
commit 3501c34344
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GPG key ID: 4E3C3CC1031BA9C7
2 changed files with 4 additions and 11 deletions
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9
qemu/target-arm/cpu.h
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@ -1926,15 +1926,6 @@ static inline uint64_t *aa64_vfp_qreg(CPUARMState *env, unsigned regno)
#include "exec/exec-all.h"
static inline void cpu_pc_from_tb(CPUARMState *env, TranslationBlock *tb)
{
if (ARM_TBFLAG_AARCH64_STATE(tb->flags)) {
env->pc = tb->pc;
} else {
env->regs[15] = tb->pc;
}
}
enum {
QEMU_PSCI_CONDUIT_DISABLED = 0,
QEMU_PSCI_CONDUIT_SMC = 1,

6
qemu/tcg/tcg.h
View file

@ -1049,8 +1049,10 @@ static inline unsigned get_mmuidx(TCGMemOpIdx oi)
* state is correctly synchronised and ready for execution of the next
* TB (and in particular the guest PC is the address to execute next).
* Otherwise, we gave up on execution of this TB before it started, and
* the caller must fix up the CPU state by calling cpu_pc_from_tb()
* with the next-TB pointer we return.
* the caller must fix up the CPU state by calling the CPU's
* synchronize_from_tb() method with the next-TB pointer we return (falling
* back to calling the CPU's set_pc method with tb->pb if no
* synchronize_from_tb() method exists).
*
* Note that TCG targets may use a different definition of tcg_qemu_tb_exec
* to this default (which just calls the prologue.code emitted by