mirror of https://github.com/xemu-project/xemu.git
target/ppc: optimize hreg_compute_pmu_hflags_value
Cache env->spr[SPR_POWER_MMCR0] in a local variable as used in multiple conditions to avoid multiple indirect accesses. Reviewed-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Harsh Prateek Bora <harshpb@linux.ibm.com> Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
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@ -83,15 +83,16 @@ static bool hreg_check_bhrb_enable(CPUPPCState *env)
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static uint32_t hreg_compute_pmu_hflags_value(CPUPPCState *env)
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{
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uint32_t hflags = 0;
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#if defined(TARGET_PPC64)
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if (env->spr[SPR_POWER_MMCR0] & MMCR0_PMCC0) {
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target_ulong mmcr0 = env->spr[SPR_POWER_MMCR0];
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if (mmcr0 & MMCR0_PMCC0) {
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hflags |= 1 << HFLAGS_PMCC0;
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}
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if (env->spr[SPR_POWER_MMCR0] & MMCR0_PMCC1) {
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if (mmcr0 & MMCR0_PMCC1) {
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hflags |= 1 << HFLAGS_PMCC1;
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}
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if (env->spr[SPR_POWER_MMCR0] & MMCR0_PMCjCE) {
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if (mmcr0 & MMCR0_PMCjCE) {
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hflags |= 1 << HFLAGS_PMCJCE;
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}
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if (hreg_check_bhrb_enable(env)) {
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