Fix test for x86_64

Author: pranavk

clang/test/Preprocessor/init-x86.c

@@ -1023,6 +1023,21 @@
 // X86_64-LINUX:#define __DBL_MIN_EXP__ (-1021)
 // X86_64-LINUX:#define __DBL_MIN__ 2.2250738585072014e-308
 // X86_64-LINUX:#define __DECIMAL_DIG__ __LDBL_DECIMAL_DIG__
+// X86_64-LINUX:#define __FLOAT128__ 1
+// X86_64-LINUX:#define __FLT128_DECIMAL_DIG__ 36
+// X86_64-LINUX:#define __FLT128_DENORM_MIN__ 6.47517511943802511092443895822764655e-4966Q
+// X86_64-LINUX:#define __FLT128_DIG__ 33
+// X86_64-LINUX:#define __FLT128_EPSILON__ 1.92592994438723585305597794258492732e-34Q
+// X86_64-LINUX:#define __FLT128_HAS_DENORM__ 1
+// X86_64-LINUX:#define __FLT128_HAS_INFINITY__ 1
+// X86_64-LINUX:#define __FLT128_HAS_QUIET_NAN__ 1
+// X86_64-LINUX:#define __FLT128_MANT_DIG__ 113
+// X86_64-LINUX:#define __FLT128_MAX_10_EXP__ 4932
+// X86_64-LINUX:#define __FLT128_MAX_EXP__ 16384
+// X86_64-LINUX:#define __FLT128_MAX__ 1.18973149535723176508575932662800702e+4932Q
+// X86_64-LINUX:#define __FLT128_MIN_10_EXP__ (-4931)
+// X86_64-LINUX:#define __FLT128_MIN_EXP__ (-16381)
+// X86_64-LINUX:#define __FLT128_MIN__ 3.36210314311209350626267781732175260e-4932Q
 // X86_64-LINUX:#define __FLT_DENORM_MIN__ 1.40129846e-45F
 // X86_64-LINUX:#define __FLT_DIG__ 6
 // X86_64-LINUX:#define __FLT_EPSILON__ 1.19209290e-7F