[RISCV] Bump zicfilp to 0.4 (#75134)

Bump to https://github.com/riscv/riscv-cfi/releases/tag/v0.4.0. Actually
there is no functional change here.

Author: yetingk

clang/test/Preprocessor/riscv-target-features.c

@@ -1056,12 +1056,12 @@
 // CHECK-ZFBFMIN-EXT: __riscv_zfbfmin 8000{{$}}
 
 // RUN: %clang --target=riscv32 -menable-experimental-extensions \
-// RUN: -march=rv32i_zicfilp0p2 -x c -E -dM %s \
+// RUN: -march=rv32i_zicfilp0p4 -x c -E -dM %s \
 // RUN: -o - | FileCheck --check-prefix=CHECK-ZICFILP-EXT %s
 // RUN: %clang --target=riscv64 -menable-experimental-extensions \
-// RUN: -march=rv64i_zicfilp0p2 -x c -E -dM %s \
+// RUN: -march=rv64i_zicfilp0p4 -x c -E -dM %s \
 // RUN: -o - | FileCheck --check-prefix=CHECK-ZICFILP-EXT %s
-// CHECK-ZICFILP-EXT: __riscv_zicfilp 2000{{$}}
+// CHECK-ZICFILP-EXT: __riscv_zicfilp 4000{{$}}
 
 // RUN: %clang --target=riscv32 -menable-experimental-extensions \
 // RUN: -march=rv32i_zicond1p0 -x c -E -dM %s \

llvm/docs/RISCVUsage.rst

@@ -197,7 +197,7 @@ The primary goal of experimental support is to assist in the process of ratifica
   LLVM implements assembler support for the `0.8.0 draft specification <https://github.com/riscv/riscv-bfloat16/releases/tag/20230629>`_.
 
 ``experimental-zicfilp``
-  LLVM implements the `0.2 draft specification <https://github.com/riscv/riscv-cfi/releases/tag/v0.2.0>`__.
+  LLVM implements the `0.4 draft specification <https://github.com/riscv/riscv-cfi/releases/tag/v0.4.0>`__.
 
 ``experimental-zicond``
   LLVM implements the `1.0-rc1 draft specification <https://github.com/riscv/riscv-zicond/releases/tag/v1.0-rc1>`__.

llvm/lib/Support/RISCVISAInfo.cpp

@@ -174,7 +174,7 @@ static const RISCVSupportedExtension SupportedExperimentalExtensions[] = {
 
     {"zfbfmin", RISCVExtensionVersion{0, 8}},
 
-    {"zicfilp", RISCVExtensionVersion{0, 2}},
+    {"zicfilp", RISCVExtensionVersion{0, 4}},
     {"zicond", RISCVExtensionVersion{1, 0}},
 
     {"ztso", RISCVExtensionVersion{0, 1}},

llvm/test/CodeGen/RISCV/attributes.ll

@@ -271,7 +271,7 @@
 ; RV32ZVFBFMIN: .attribute 5, "rv32i2p1_f2p2_zicsr2p0_zfbfmin0p8_zve32f1p0_zve32x1p0_zvfbfmin0p8_zvl32b1p0"
 ; RV32ZVFBFWMA: .attribute 5, "rv32i2p1_f2p2_zicsr2p0_zfbfmin0p8_zve32f1p0_zve32x1p0_zvfbfmin0p8_zvfbfwma0p8_zvl32b1p0"
 ; RV32ZACAS: .attribute 5, "rv32i2p1_a2p1_zacas1p0"
-; RV32ZICFILP: .attribute 5, "rv32i2p1_zicfilp0p2"
+; RV32ZICFILP: .attribute 5, "rv32i2p1_zicfilp0p4"
 
 ; RV64M: .attribute 5, "rv64i2p1_m2p0"
 ; RV64ZMMUL: .attribute 5, "rv64i2p1_zmmul1p0"
@@ -360,7 +360,7 @@
 ; RV64ZVFBFMIN: .attribute 5, "rv64i2p1_f2p2_zicsr2p0_zfbfmin0p8_zve32f1p0_zve32x1p0_zvfbfmin0p8_zvl32b1p0"
 ; RV64ZVFBFWMA: .attribute 5, "rv64i2p1_f2p2_zicsr2p0_zfbfmin0p8_zve32f1p0_zve32x1p0_zvfbfmin0p8_zvfbfwma0p8_zvl32b1p0"
 ; RV64ZACAS: .attribute 5, "rv64i2p1_a2p1_zacas1p0"
-; RV64ZICFILP: .attribute 5, "rv64i2p1_zicfilp0p2"
+; RV64ZICFILP: .attribute 5, "rv64i2p1_zicfilp0p4"
 
 define i32 @addi(i32 %a) {
   %1 = add i32 %a, 1

llvm/test/MC/RISCV/attribute-arch.s

@@ -309,5 +309,5 @@
 .attribute arch, "rv32i_xcvbi"
 # CHECK: attribute      5, "rv32i2p1_xcvbi1p0"
 
-.attribute arch, "rv32i_zicfilp0p2"
-# CHECK: attribute      5, "rv32i2p1_zicfilp0p2"
+.attribute arch, "rv32i_zicfilp0p4"
+# CHECK: attribute      5, "rv32i2p1_zicfilp0p4"

llvm/unittests/Support/RISCVISAInfoTest.cpp

@@ -736,7 +736,7 @@ R"(All available -march extensions for RISC-V
     xventanacondops     1.0
 
 Experimental extensions
-    zicfilp             0.2       This is a long dummy description
+    zicfilp             0.4       This is a long dummy description
     zicond              1.0
     zacas               1.0
     zfbfmin             0.8