diff --git a/clang/docs/ReleaseNotes.rst b/clang/docs/ReleaseNotes.rst
index 125d51c42d507..5097c9b1c6472 100644
--- a/clang/docs/ReleaseNotes.rst
+++ b/clang/docs/ReleaseNotes.rst
@@ -455,6 +455,7 @@ RISC-V Support
 ^^^^^^^^^^^^^^
 
 - ``__attribute__((rvv_vector_bits(N)))`` is now supported for RVV vbool*_t types.
+- Profile names in ``-march`` option are now supported.
 
 CUDA/HIP Language Changes
 ^^^^^^^^^^^^^^^^^^^^^^^^^
diff --git a/clang/test/Driver/riscv-profiles.c b/clang/test/Driver/riscv-profiles.c
new file mode 100644
index 0000000000000..904f0c371f444
--- /dev/null
+++ b/clang/test/Driver/riscv-profiles.c
@@ -0,0 +1,312 @@
+// RUN: %clang -### -c %s 2>&1 -march=rvi20u32 | FileCheck -check-prefix=RVI20U32 %s
+// RVI20U32: "-target-feature" "-a"
+// RVI20U32: "-target-feature" "-c"
+// RVI20U32: "-target-feature" "-d"
+// RVI20U32: "-target-feature" "-f"
+// RVI20U32: "-target-feature" "-m"
+
+// RUN: %clang -### -c %s 2>&1 -march=rvi20u64 | FileCheck -check-prefix=RVI20U64 %s
+// RVI20U64: "-target-feature" "-a"
+// RVI20U64: "-target-feature" "-c"
+// RVI20U64: "-target-feature" "-d"
+// RVI20U64: "-target-feature" "-f"
+// RVI20U64: "-target-feature" "-m"
+
+// RUN: %clang -### -c %s 2>&1 -march=rva20u64 | FileCheck -check-prefix=RVA20U64 %s
+// RVA20U64: "-target-feature" "+m"
+// RVA20U64: "-target-feature" "+a"
+// RVA20U64: "-target-feature" "+f"
+// RVA20U64: "-target-feature" "+d"
+// RVA20U64: "-target-feature" "+c"
+// RVA20U64: "-target-feature" "+ziccamoa"
+// RVA20U64: "-target-feature" "+ziccif"
+// RVA20U64: "-target-feature" "+zicclsm"
+// RVA20U64: "-target-feature" "+ziccrse"
+// RVA20U64: "-target-feature" "+zicntr"
+// RVA20U64: "-target-feature" "+zicsr"
+// RVA20U64: "-target-feature" "+za128rs"
+
+// RUN: %clang -### -c %s 2>&1 -march=rva20s64 | FileCheck -check-prefix=RVA20S64 %s
+// RVA20S64: "-target-feature" "+m"
+// RVA20S64: "-target-feature" "+a"
+// RVA20S64: "-target-feature" "+f"
+// RVA20S64: "-target-feature" "+d"
+// RVA20S64: "-target-feature" "+c"
+// RVA20S64: "-target-feature" "+ziccamoa"
+// RVA20S64: "-target-feature" "+ziccif"
+// RVA20S64: "-target-feature" "+zicclsm"
+// RVA20S64: "-target-feature" "+ziccrse"
+// RVA20S64: "-target-feature" "+zicntr"
+// RVA20S64: "-target-feature" "+zicsr"
+// RVA20S64: "-target-feature" "+zifencei"
+// RVA20S64: "-target-feature" "+za128rs"
+// RVA20S64: "-target-feature" "+ssccptr"
+// RVA20S64: "-target-feature" "+sstvala"
+// RVA20S64: "-target-feature" "+sstvecd"
+// RVA20S64: "-target-feature" "+svade"
+// RVA20S64: "-target-feature" "+svbare"
+
+// RUN: %clang -### -c %s 2>&1 -march=rva22u64 | FileCheck -check-prefix=RVA22U64 %s
+// RVA22U64: "-target-feature" "+m"
+// RVA22U64: "-target-feature" "+a"
+// RVA22U64: "-target-feature" "+f"
+// RVA22U64: "-target-feature" "+d"
+// RVA22U64: "-target-feature" "+c"
+// RVA22U64: "-target-feature" "+zic64b"
+// RVA22U64: "-target-feature" "+zicbom"
+// RVA22U64: "-target-feature" "+zicbop"
+// RVA22U64: "-target-feature" "+zicboz"
+// RVA22U64: "-target-feature" "+ziccamoa"
+// RVA22U64: "-target-feature" "+ziccif"
+// RVA22U64: "-target-feature" "+zicclsm"
+// RVA22U64: "-target-feature" "+ziccrse"
+// RVA22U64: "-target-feature" "+zicntr"
+// RVA22U64: "-target-feature" "+zicsr"
+// RVA22U64: "-target-feature" "+zihintpause"
+// RVA22U64: "-target-feature" "+zihpm"
+// RVA22U64: "-target-feature" "+za64rs"
+// RVA22U64: "-target-feature" "+zfhmin"
+// RVA22U64: "-target-feature" "+zba"
+// RVA22U64: "-target-feature" "+zbb"
+// RVA22U64: "-target-feature" "+zbs"
+// RVA22U64: "-target-feature" "+zkt"
+
+// RUN: %clang -### -c %s 2>&1 -march=rva22s64 | FileCheck -check-prefix=RVA22S64 %s
+// RVA22S64: "-target-feature" "+m"
+// RVA22S64: "-target-feature" "+a"
+// RVA22S64: "-target-feature" "+f"
+// RVA22S64: "-target-feature" "+d"
+// RVA22S64: "-target-feature" "+c"
+// RVA22S64: "-target-feature" "+zic64b"
+// RVA22S64: "-target-feature" "+zicbom"
+// RVA22S64: "-target-feature" "+zicbop"
+// RVA22S64: "-target-feature" "+zicboz"
+// RVA22S64: "-target-feature" "+ziccamoa"
+// RVA22S64: "-target-feature" "+ziccif"
+// RVA22S64: "-target-feature" "+zicclsm"
+// RVA22S64: "-target-feature" "+ziccrse"
+// RVA22S64: "-target-feature" "+zicntr"
+// RVA22S64: "-target-feature" "+zicsr"
+// RVA22S64: "-target-feature" "+zifencei"
+// RVA22S64: "-target-feature" "+zihintpause"
+// RVA22S64: "-target-feature" "+zihpm"
+// RVA22S64: "-target-feature" "+za64rs"
+// RVA22S64: "-target-feature" "+zfhmin"
+// RVA22S64: "-target-feature" "+zba"
+// RVA22S64: "-target-feature" "+zbb"
+// RVA22S64: "-target-feature" "+zbs"
+// RVA22S64: "-target-feature" "+zkt"
+// RVA22S64: "-target-feature" "+ssccptr"
+// RVA22S64: "-target-feature" "+sscounterenw"
+// RVA22S64: "-target-feature" "+sstvala"
+// RVA22S64: "-target-feature" "+sstvecd"
+// RVA22S64: "-target-feature" "+svade"
+// RVA22S64: "-target-feature" "+svbare"
+// RVA22S64: "-target-feature" "+svinval"
+// RVA22S64: "-target-feature" "+svpbmt"
+
+// RUN: %clang -### -c %s 2>&1 -march=rva23u64 -menable-experimental-extensions | FileCheck -check-prefix=RVA23U64 %s
+// RVA23U64: "-target-feature" "+m"
+// RVA23U64: "-target-feature" "+a"
+// RVA23U64: "-target-feature" "+f"
+// RVA23U64: "-target-feature" "+d"
+// RVA23U64: "-target-feature" "+c"
+// RVA23U64: "-target-feature" "+v"
+// RVA23U64: "-target-feature" "+zic64b"
+// RVA23U64: "-target-feature" "+zicbom"
+// RVA23U64: "-target-feature" "+zicbop"
+// RVA23U64: "-target-feature" "+zicboz"
+// RVA23U64: "-target-feature" "+ziccamoa"
+// RVA23U64: "-target-feature" "+ziccif"
+// RVA23U64: "-target-feature" "+zicclsm"
+// RVA23U64: "-target-feature" "+ziccrse"
+// RVA23U64: "-target-feature" "+zicntr"
+// RVA23U64: "-target-feature" "+zicond"
+// RVA23U64: "-target-feature" "+zicsr"
+// RVA23U64: "-target-feature" "+zihintntl"
+// RVA23U64: "-target-feature" "+zihintpause"
+// RVA23U64: "-target-feature" "+zihpm"
+// RVA23U64: "-target-feature" "+experimental-zimop"
+// RVA23U64: "-target-feature" "+za64rs"
+// RVA23U64: "-target-feature" "+zawrs"
+// RVA23U64: "-target-feature" "+zfa"
+// RVA23U64: "-target-feature" "+zfhmin"
+// RVA23U64: "-target-feature" "+zcb"
+// RVA23U64: "-target-feature" "+experimental-zcmop"
+// RVA23U64: "-target-feature" "+zba"
+// RVA23U64: "-target-feature" "+zbb"
+// RVA23U64: "-target-feature" "+zbs"
+// RVA23U64: "-target-feature" "+zkt"
+// RVA23U64: "-target-feature" "+zvbb"
+// RVA23U64: "-target-feature" "+zvfhmin"
+// RVA23U64: "-target-feature" "+zvkt"
+
+// RUN: %clang -### -c %s 2>&1 -march=rva23s64 -menable-experimental-extensions | FileCheck -check-prefix=RVA23S64 %s
+// RVA23S64: "-target-feature" "+m"
+// RVA23S64: "-target-feature" "+a"
+// RVA23S64: "-target-feature" "+f"
+// RVA23S64: "-target-feature" "+d"
+// RVA23S64: "-target-feature" "+c"
+// RVA23S64: "-target-feature" "+v"
+// RVA23S64: "-target-feature" "+h"
+// RVA23S64: "-target-feature" "+zic64b"
+// RVA23S64: "-target-feature" "+zicbom"
+// RVA23S64: "-target-feature" "+zicbop"
+// RVA23S64: "-target-feature" "+zicboz"
+// RVA23S64: "-target-feature" "+ziccamoa"
+// RVA23S64: "-target-feature" "+ziccif"
+// RVA23S64: "-target-feature" "+zicclsm"
+// RVA23S64: "-target-feature" "+ziccrse"
+// RVA23S64: "-target-feature" "+zicntr"
+// RVA23S64: "-target-feature" "+zicond"
+// RVA23S64: "-target-feature" "+zicsr"
+// RVA23S64: "-target-feature" "+zifencei"
+// RVA23S64: "-target-feature" "+zihintntl"
+// RVA23S64: "-target-feature" "+zihintpause"
+// RVA23S64: "-target-feature" "+zihpm"
+// RVA23S64: "-target-feature" "+experimental-zimop"
+// RVA23S64: "-target-feature" "+za64rs"
+// RVA23S64: "-target-feature" "+zawrs"
+// RVA23S64: "-target-feature" "+zfa"
+// RVA23S64: "-target-feature" "+zfhmin"
+// RVA23S64: "-target-feature" "+zcb"
+// RVA23S64: "-target-feature" "+experimental-zcmop"
+// RVA23S64: "-target-feature" "+zba"
+// RVA23S64: "-target-feature" "+zbb"
+// RVA23S64: "-target-feature" "+zbs"
+// RVA23S64: "-target-feature" "+zkt"
+// RVA23S64: "-target-feature" "+zvbb"
+// RVA23S64: "-target-feature" "+zvfhmin"
+// RVA23S64: "-target-feature" "+zvkt"
+// RVA23S64: "-target-feature" "+shcounterenw"
+// RVA23S64: "-target-feature" "+shgatpa"
+// RVA23S64: "-target-feature" "+shtvala"
+// RVA23S64: "-target-feature" "+shvsatpa"
+// RVA23S64: "-target-feature" "+shvstvala"
+// RVA23S64: "-target-feature" "+shvstvecd"
+// RVA23S64: "-target-feature" "+ssccptr"
+// RVA23S64: "-target-feature" "+sscofpmf"
+// RVA23S64: "-target-feature" "+sscounterenw"
+// RVA23S64: "-target-feature" "+experimental-ssnpm"
+// RVA23S64: "-target-feature" "+ssstateen"
+// RVA23S64: "-target-feature" "+sstc"
+// RVA23S64: "-target-feature" "+sstvala"
+// RVA23S64: "-target-feature" "+sstvecd"
+// RVA23S64: "-target-feature" "+ssu64xl"
+// RVA23S64: "-target-feature" "+svade"
+// RVA23S64: "-target-feature" "+svbare"
+// RVA23S64: "-target-feature" "+svinval"
+// RVA23S64: "-target-feature" "+svnapot"
+// RVA23S64: "-target-feature" "+svpbmt"
+
+// RUN: %clang -### -c %s 2>&1 -march=rvb23u64 -menable-experimental-extensions | FileCheck -check-prefix=RVB23U64 %s
+// RVB23U64: "-target-feature" "+m"
+// RVB23U64: "-target-feature" "+a"
+// RVB23U64: "-target-feature" "+f"
+// RVB23U64: "-target-feature" "+d"
+// RVB23U64: "-target-feature" "+c"
+// RVB23U64: "-target-feature" "+zic64b"
+// RVB23U64: "-target-feature" "+zicbom"
+// RVB23U64: "-target-feature" "+zicbop"
+// RVB23U64: "-target-feature" "+zicboz"
+// RVB23U64: "-target-feature" "+ziccamoa"
+// RVB23U64: "-target-feature" "+ziccif"
+// RVB23U64: "-target-feature" "+zicclsm"
+// RVB23U64: "-target-feature" "+ziccrse"
+// RVB23U64: "-target-feature" "+zicntr"
+// RVB23U64: "-target-feature" "+zicond"
+// RVB23U64: "-target-feature" "+zicsr"
+// RVB23U64: "-target-feature" "+zihintntl"
+// RVB23U64: "-target-feature" "+zihintpause"
+// RVB23U64: "-target-feature" "+zihpm"
+// RVB23U64: "-target-feature" "+experimental-zimop"
+// RVB23U64: "-target-feature" "+za64rs"
+// RVB23U64: "-target-feature" "+zawrs"
+// RVB23U64: "-target-feature" "+zfa"
+// RVB23U64: "-target-feature" "+zcb"
+// RVB23U64: "-target-feature" "+experimental-zcmop"
+// RVB23U64: "-target-feature" "+zba"
+// RVB23U64: "-target-feature" "+zbb"
+// RVB23U64: "-target-feature" "+zbs"
+// RVB23U64: "-target-feature" "+zkt"
+
+// RUN: %clang -### -c %s 2>&1 -march=rvb23s64 -menable-experimental-extensions | FileCheck -check-prefix=RVB23S64 %s
+// RVB23S64: "-target-feature" "+m"
+// RVB23S64: "-target-feature" "+a"
+// RVB23S64: "-target-feature" "+f"
+// RVB23S64: "-target-feature" "+d"
+// RVB23S64: "-target-feature" "+c"
+// RVB23S64: "-target-feature" "+zic64b"
+// RVB23S64: "-target-feature" "+zicbom"
+// RVB23S64: "-target-feature" "+zicbop"
+// RVB23S64: "-target-feature" "+zicboz"
+// RVB23S64: "-target-feature" "+ziccamoa"
+// RVB23S64: "-target-feature" "+ziccif"
+// RVB23S64: "-target-feature" "+zicclsm"
+// RVB23S64: "-target-feature" "+ziccrse"
+// RVB23S64: "-target-feature" "+zicntr"
+// RVB23S64: "-target-feature" "+zicond"
+// RVB23S64: "-target-feature" "+zicsr"
+// RVB23S64: "-target-feature" "+zifencei"
+// RVB23S64: "-target-feature" "+zihintntl"
+// RVB23S64: "-target-feature" "+zihintpause"
+// RVB23S64: "-target-feature" "+zihpm"
+// RVB23S64: "-target-feature" "+experimental-zimop"
+// RVB23S64: "-target-feature" "+za64rs"
+// RVB23S64: "-target-feature" "+zawrs"
+// RVB23S64: "-target-feature" "+zfa"
+// RVB23S64: "-target-feature" "+zcb"
+// RVB23S64: "-target-feature" "+experimental-zcmop"
+// RVB23S64: "-target-feature" "+zba"
+// RVB23S64: "-target-feature" "+zbb"
+// RVB23S64: "-target-feature" "+zbs"
+// RVB23S64: "-target-feature" "+zkt"
+// RVB23S64: "-target-feature" "+ssccptr"
+// RVB23S64: "-target-feature" "+sscofpmf"
+// RVB23S64: "-target-feature" "+sscounterenw"
+// RVB23S64: "-target-feature" "+sstc"
+// RVB23S64: "-target-feature" "+sstvala"
+// RVB23S64: "-target-feature" "+sstvecd"
+// RVB23S64: "-target-feature" "+ssu64xl"
+// RVB23S64: "-target-feature" "+svade"
+// RVB23S64: "-target-feature" "+svbare"
+// RVB23S64: "-target-feature" "+svinval"
+// RVB23S64: "-target-feature" "+svnapot"
+// RVB23S64: "-target-feature" "+svpbmt"
+
+// RUN: %clang -### -c %s 2>&1 -march=rvm23u32 -menable-experimental-extensions | FileCheck -check-prefix=RVM23U32 %s
+// RVM23U32: "-target-feature" "+m"
+// RVM23U32: "-target-feature" "+zicbop"
+// RVM23U32: "-target-feature" "+zicond"
+// RVM23U32: "-target-feature" "+zicsr"
+// RVM23U32: "-target-feature" "+zihintntl"
+// RVM23U32: "-target-feature" "+zihintpause"
+// RVM23U32: "-target-feature" "+experimental-zimop"
+// RVM23U32: "-target-feature" "+zce"
+// RVM23U32: "-target-feature" "+experimental-zcmop"
+// RVM23U32: "-target-feature" "+zba"
+// RVM23U32: "-target-feature" "+zbb"
+// RVM23U32: "-target-feature" "+zbs"
+
+// RUN: %clang -### -c %s 2>&1 -march=rva22u64_zfa | FileCheck -check-prefix=PROFILE-WITH-ADDITIONAL %s
+// PROFILE-WITH-ADDITIONAL: "-target-feature" "+m"
+// PROFILE-WITH-ADDITIONAL: "-target-feature" "+a"
+// PROFILE-WITH-ADDITIONAL: "-target-feature" "+f"
+// PROFILE-WITH-ADDITIONAL: "-target-feature" "+d"
+// PROFILE-WITH-ADDITIONAL: "-target-feature" "+c"
+// PROFILE-WITH-ADDITIONAL: "-target-feature" "+zicbom"
+// PROFILE-WITH-ADDITIONAL: "-target-feature" "+zicbop"
+// PROFILE-WITH-ADDITIONAL: "-target-feature" "+zicboz"
+// PROFILE-WITH-ADDITIONAL: "-target-feature" "+zihintpause"
+// PROFILE-WITH-ADDITIONAL: "-target-feature" "+zfa"
+// PROFILE-WITH-ADDITIONAL: "-target-feature" "+zfhmin"
+// PROFILE-WITH-ADDITIONAL: "-target-feature" "+zba"
+// PROFILE-WITH-ADDITIONAL: "-target-feature" "+zbb"
+// PROFILE-WITH-ADDITIONAL: "-target-feature" "+zbs"
+// PROFILE-WITH-ADDITIONAL: "-target-feature" "+zkt"
+
+// RUN: not %clang -### -c %s 2>&1 -march=rva19u64_zfa | FileCheck -check-prefix=INVALID-PROFILE %s
+// INVALID-PROFILE: error: invalid arch name 'rva19u64_zfa', unsupported profile
+
+// RUN: not %clang -### -c %s 2>&1 -march=rva22u64zfa | FileCheck -check-prefix=INVALID-ADDITIONAL %s
+// INVALID-ADDITIONAL: error: invalid arch name 'rva22u64zfa', additional extensions must be after separator '_'
diff --git a/llvm/lib/Support/RISCVISAInfo.cpp b/llvm/lib/Support/RISCVISAInfo.cpp
index 39235ace47248..67e6e5b962b1a 100644
--- a/llvm/lib/Support/RISCVISAInfo.cpp
+++ b/llvm/lib/Support/RISCVISAInfo.cpp
@@ -36,6 +36,11 @@ struct RISCVSupportedExtension {
   }
 };
 
+struct RISCVProfile {
+  StringLiteral Name;
+  StringLiteral MArch;
+};
+
 } // end anonymous namespace
 
 static constexpr StringLiteral AllStdExts = "mafdqlcbkjtpvnh";
@@ -244,6 +249,42 @@ static const RISCVSupportedExtension SupportedExperimentalExtensions[] = {
 };
 // clang-format on
 
+static constexpr RISCVProfile SupportedProfiles[] = {
+    {"rvi20u32", "rv32i"},
+    {"rvi20u64", "rv64i"},
+    {"rva20u64", "rv64imafdc_ziccamoa_ziccif_zicclsm_ziccrse_zicntr_za128rs"},
+    {"rva20s64", "rv64imafdc_ziccamoa_ziccif_zicclsm_ziccrse_zicntr_zifencei_"
+                 "za128rs_ssccptr_sstvala_sstvecd_svade_svbare"},
+    {"rva22u64",
+     "rv64imafdc_zic64b_zicbom_zicbop_zicboz_ziccamoa_ziccif_zicclsm_ziccrse_"
+     "zicntr_zihintpause_zihpm_za64rs_zfhmin_zba_zbb_zbs_zkt"},
+    {"rva22s64",
+     "rv64imafdc_zic64b_zicbom_zicbop_zicboz_ziccamoa_ziccif_zicclsm_ziccrse_"
+     "zicntr_zifencei_zihintpause_zihpm_za64rs_zfhmin_zba_zbb_zbs_zkt_ssccptr_"
+     "sscounterenw_sstvala_sstvecd_svade_svbare_svinval_svpbmt"},
+    {"rva23u64",
+     "rv64imafdcv_zic64b_zicbom_zicbop_zicboz_ziccamoa_ziccif_zicclsm_ziccrse_"
+     "zicntr_zicond_zihintntl_zihintpause_zihpm_zimop0p1_za64rs_zawrs_zfa_"
+     "zfhmin_zcb_zcmop0p2_zba_zbb_zbs_zkt_zvbb_zvfhmin_zvkt"},
+    {"rva23s64",
+     "rv64imafdcvh_zic64b_zicbom_zicbop_zicboz_ziccamoa_ziccif_zicclsm_ziccrse_"
+     "zicntr_zicond_zifencei_zihintntl_zihintpause_zihpm_zimop0p1_za64rs_zawrs_"
+     "zfa_zfhmin_zcb_zcmop0p2_zba_zbb_zbs_zkt_zvbb_zvfhmin_zvkt_shcounterenw_"
+     "shgatpa_shtvala_shvsatpa_shvstvala_shvstvecd_ssccptr_sscofpmf_"
+     "sscounterenw_ssnpm0p8_ssstateen_sstc_sstvala_sstvecd_ssu64xl_svade_"
+     "svbare_svinval_svnapot_svpbmt"},
+    {"rvb23u64", "rv64imafdc_zic64b_zicbom_zicbop_zicboz_ziccamoa_ziccif_"
+                 "zicclsm_ziccrse_zicntr_zicond_zihintntl_zihintpause_zihpm_"
+                 "zimop0p1_za64rs_zawrs_zfa_zcb_zcmop0p2_zba_zbb_zbs_zkt"},
+    {"rvb23s64",
+     "rv64imafdc_zic64b_zicbom_zicbop_zicboz_ziccamoa_ziccif_zicclsm_ziccrse_"
+     "zicntr_zicond_zifencei_zihintntl_zihintpause_zihpm_zimop0p1_za64rs_zawrs_"
+     "zfa_zcb_zcmop0p2_zba_zbb_zbs_zkt_ssccptr_sscofpmf_sscounterenw_sstc_"
+     "sstvala_sstvecd_ssu64xl_svade_svbare_svinval_svnapot_svpbmt"},
+    {"rvm23u32", "rv32im_zicbop_zicond_zicsr_zihintntl_zihintpause_zimop0p1_"
+                 "zca_zcb_zce_zcmop0p2_zcmp_zcmt_zba_zbb_zbs"},
+};
+
 static void verifyTables() {
 #ifndef NDEBUG
   static std::atomic<bool> TableChecked(false);
@@ -857,6 +898,29 @@ RISCVISAInfo::parseArchString(StringRef Arch, bool EnableExperimentalExtension,
                              "string must be lowercase");
   }
 
+  if (Arch.starts_with("rvi") || Arch.starts_with("rva") ||
+      Arch.starts_with("rvb") || Arch.starts_with("rvm")) {
+    const auto *FoundProfile =
+        llvm::find_if(SupportedProfiles, [Arch](const RISCVProfile &Profile) {
+          return Arch.starts_with(Profile.Name);
+        });
+
+    if (FoundProfile == std::end(SupportedProfiles))
+      return createStringError(errc::invalid_argument, "unsupported profile");
+
+    std::string NewArch = FoundProfile->MArch.str();
+    StringRef ArchWithoutProfile = Arch.substr(FoundProfile->Name.size());
+    if (!ArchWithoutProfile.empty()) {
+      if (!ArchWithoutProfile.starts_with("_"))
+        return createStringError(
+            errc::invalid_argument,
+            "additional extensions must be after separator '_'");
+      NewArch += ArchWithoutProfile.str();
+    }
+    return parseArchString(NewArch, EnableExperimentalExtension,
+                           ExperimentalExtensionVersionCheck, IgnoreUnknown);
+  }
+
   bool HasRV64 = Arch.starts_with("rv64");
   // ISA string must begin with rv32 or rv64.
   if (!(Arch.starts_with("rv32") || HasRV64) || (Arch.size() < 5)) {