diff --git a/clang/lib/Basic/Targets/RISCV.cpp b/clang/lib/Basic/Targets/RISCV.cpp
--- a/clang/lib/Basic/Targets/RISCV.cpp
+++ b/clang/lib/Basic/Targets/RISCV.cpp
@@ -109,13 +109,18 @@
   if (ABIName == "ilp32e")
     Builder.defineMacro("__riscv_abi_rve");
 
+  Builder.defineMacro("__riscv_arch_test");
+  Builder.defineMacro("__riscv_i", "2000000");
+
   if (HasM) {
+    Builder.defineMacro("__riscv_m", "2000000");
     Builder.defineMacro("__riscv_mul");
     Builder.defineMacro("__riscv_div");
     Builder.defineMacro("__riscv_muldiv");
   }
 
   if (HasA) {
+    Builder.defineMacro("__riscv_a", "2000000");
     Builder.defineMacro("__riscv_atomic");
     Builder.defineMacro("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_1");
     Builder.defineMacro("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_2");
@@ -125,22 +130,32 @@
   }
 
   if (HasF || HasD) {
+    Builder.defineMacro("__riscv_f", "2000000");
     Builder.defineMacro("__riscv_flen", HasD ? "64" : "32");
     Builder.defineMacro("__riscv_fdiv");
     Builder.defineMacro("__riscv_fsqrt");
   }
 
-  if (HasC)
+  if (HasD)
+    Builder.defineMacro("__riscv_d", "2000000");
+
+  if (HasC) {
+    Builder.defineMacro("__riscv_c", "2000000");
     Builder.defineMacro("__riscv_compressed");
+  }
 
-  if (HasB)
+  if (HasB) {
+    Builder.defineMacro("__riscv_b", "92000");
     Builder.defineMacro("__riscv_bitmanip");
+  }
 
-  if (HasV)
+  if (HasV) {
+    Builder.defineMacro("__riscv_v", "9000");
     Builder.defineMacro("__riscv_vector");
+  }
 
   if (HasZfh)
-    Builder.defineMacro("__riscv_zfh");
+    Builder.defineMacro("__riscv_zfh", "1000");
 }
 
 /// Return true if has this feature, need to sync with handleTargetFeatures.
diff --git a/clang/test/Preprocessor/riscv-target-features.c b/clang/test/Preprocessor/riscv-target-features.c
--- a/clang/test/Preprocessor/riscv-target-features.c
+++ b/clang/test/Preprocessor/riscv-target-features.c
@@ -18,6 +18,7 @@
 // RUN: %clang -target riscv64-unknown-linux-gnu -march=rv64im -x c -E -dM %s \
 // RUN: -o - | FileCheck --check-prefix=CHECK-M-EXT %s
 // CHECK-M-EXT: __riscv_div 1
+// CHECK-M-EXT: __riscv_m 2000000
 // CHECK-M-EXT: __riscv_mul 1
 // CHECK-M-EXT: __riscv_muldiv 1
 
@@ -25,12 +26,14 @@
 // RUN: -o - | FileCheck --check-prefix=CHECK-A-EXT %s
 // RUN: %clang -target riscv64-unknown-linux-gnu -march=rv64ia -x c -E -dM %s \
 // RUN: -o - | FileCheck --check-prefix=CHECK-A-EXT %s
+// CHECK-A-EXT: __riscv_a 2000000
 // CHECK-A-EXT: __riscv_atomic 1
 
 // RUN: %clang -target riscv32-unknown-linux-gnu -march=rv32if -x c -E -dM %s \
 // RUN: -o - | FileCheck --check-prefix=CHECK-F-EXT %s
 // RUN: %clang -target riscv64-unknown-linux-gnu -march=rv64if -x c -E -dM %s \
 // RUN: -o - | FileCheck --check-prefix=CHECK-F-EXT %s
+// CHECK-F-EXT: __riscv_f 2000000
 // CHECK-F-EXT: __riscv_fdiv 1
 // CHECK-F-EXT: __riscv_flen 32
 // CHECK-F-EXT: __riscv_fsqrt 1
@@ -39,6 +42,7 @@
 // RUN: -o - | FileCheck --check-prefix=CHECK-D-EXT %s
 // RUN: %clang -target riscv64-unknown-linux-gnu -march=rv64ifd -x c -E -dM %s \
 // RUN: -o - | FileCheck --check-prefix=CHECK-D-EXT %s
+// CHECK-D-EXT: __riscv_d 2000000
 // CHECK-D-EXT: __riscv_fdiv 1
 // CHECK-D-EXT: __riscv_flen 64
 // CHECK-D-EXT: __riscv_fsqrt 1
@@ -47,12 +51,14 @@
 // RUN: -o - | FileCheck --check-prefix=CHECK-C-EXT %s
 // RUN: %clang -target riscv64-unknown-linux-gnu -march=rv64ic -x c -E -dM %s \
 // RUN: -o - | FileCheck --check-prefix=CHECK-C-EXT %s
+// CHECK-C-EXT: __riscv_c 2000000
 // CHECK-C-EXT: __riscv_compressed 1
 
 // RUN: %clang -target riscv32-unknown-linux-gnu -menable-experimental-extensions -march=rv32ib0p92 -x c -E -dM %s \
 // RUN: -o - | FileCheck --check-prefix=CHECK-B-EXT %s
 // RUN: %clang -target riscv64-unknown-linux-gnu -menable-experimental-extensions -march=rv64ib0p92 -x c -E -dM %s \
 // RUN: -o - | FileCheck --check-prefix=CHECK-B-EXT %s
+// CHECK-B-EXT: __riscv_b 92000
 // CHECK-B-EXT: __riscv_bitmanip 1
 
 // RUN: %clang -target riscv32-unknown-linux-gnu -march=rv32ifd -mabi=ilp32 -x c -E -dM %s \
@@ -85,10 +91,11 @@
 // RUN: %clang -target riscv64-unknown-linux-gnu -menable-experimental-extensions \
 // RUN:   -march=rv64iv0p9 -x c -E -dM %s \
 // RUN:   -o - | FileCheck --check-prefix=CHECK-V-EXT %s
+// CHECK-V-EXT: __riscv_v 9000
 // CHECK-V-EXT: __riscv_vector 1
 //
 // RUN: %clang -target riscv32-unknown-linux-gnu -menable-experimental-extensions -march=rv32izfh0p1 -x c -E -dM %s \
 // RUN: -o - | FileCheck --check-prefix=CHECK-ZFH-EXT %s
 // RUN: %clang -target riscv64-unknown-linux-gnu -menable-experimental-extensions -march=rv64izfh0p1 -x c -E -dM %s \
 // RUN: -o - | FileCheck --check-prefix=CHECK-ZFH-EXT %s
-// CHECK-ZFH-EXT: __riscv_zfh 1
+// CHECK-ZFH-EXT: __riscv_zfh 1000