Integrate LLVM at llvm/llvm-project@a1de9aca1150

Updates LLVM usage to match
[a1de9aca1150](llvm/llvm-project@a1de9aca1150)

PiperOrigin-RevId: 807656101
Change-Id: I2c216bcd4be5fe3c79edf98fdbf31fc7f28c33bb

Author: Sandboxed API Team

sandboxed_api/tools/clang_generator/generator.cc

@@ -490,6 +490,12 @@ bool GeneratorFactory::runInvocation(
            "__builtin_ia32_vpshrdvw128=",
            "__builtin_ia32_vpshrdvw256=",
            "__builtin_ia32_vpshrdvw512=",
+           "__builtin_ia32_vplzcntd_128=",
+           "__builtin_ia32_vplzcntd_256=",
+           "__builtin_ia32_vplzcntd_512=",
+           "__builtin_ia32_vplzcntq_128=",
+           "__builtin_ia32_vplzcntq_256=",
+           "__builtin_ia32_vplzcntq_512=",
 
            // Trick <prfchwintrin.h> from being included by defining its header
            // guard.