diff --git a/clang/docs/ReleaseNotes.rst b/clang/docs/ReleaseNotes.rst
index 005cdebc0d8ace..fd12bb41be47a3 100644
--- a/clang/docs/ReleaseNotes.rst
+++ b/clang/docs/ReleaseNotes.rst
@@ -520,7 +520,6 @@ 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
deleted file mode 100644
index 904f0c371f4442..00000000000000
--- a/clang/test/Driver/riscv-profiles.c
+++ /dev/null
@@ -1,312 +0,0 @@
-// 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 67e6e5b962b1a9..39235ace472483 100644
--- a/llvm/lib/Support/RISCVISAInfo.cpp
+++ b/llvm/lib/Support/RISCVISAInfo.cpp
@@ -36,11 +36,6 @@ struct RISCVSupportedExtension {
   }
 };
 
-struct RISCVProfile {
-  StringLiteral Name;
-  StringLiteral MArch;
-};
-
 } // end anonymous namespace
 
 static constexpr StringLiteral AllStdExts = "mafdqlcbkjtpvnh";
@@ -249,42 +244,6 @@ 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);
@@ -898,29 +857,6 @@ 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)) {