[clang] [llvm] [LoongArch] Support LA V1.1 feature ld-seq-sa that don't generate dbar 0x700. (PR #116762)

[Lu Weining via cfe-commits]

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@@ -2011,8 +2011,9 @@ const StringMap<bool> sys::getHostCPUFeatures() {
 const StringMap<bool> sys::getHostCPUFeatures() {
   unsigned long hwcap = getauxval(AT_HWCAP);
   bool HasFPU = hwcap & (1UL << 3); // HWCAP_LOONGARCH_FPU
-  uint32_t cpucfg2 = 0x2;
+  uint32_t cpucfg2 = 0x2, cpucfg3 = 0x3;
----------------
SixWeining wrote:

```suggestion
  const uint32_t cpucfg2 = 0x2, cpucfg3 = 0x3;
```

https://github.com/llvm/llvm-project/pull/116762
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