[clang] [RISCV][FMV] Support target_version (PR #99040)

LLVM Continuous Integration via cfe-commits cfe-commits at lists.llvm.org
Thu Oct 3 20:56:37 PDT 2024 

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `sanitizer-x86_64-linux-fast` running on `sanitizer-buildbot3` while building `clang` at step 2 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/169/builds/3933

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 2 (annotate) failure: 'python ../sanitizer_buildbot/sanitizers/zorg/buildbot/builders/sanitizers/buildbot_selector.py' (failure)
...
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506: note: using lld-link: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/lld-link
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506: note: using ld64.lld: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506: note: using wasm-ld: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506: note: using ld.lld: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/ld.lld
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506: note: using lld-link: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/lld-link
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506: note: using ld64.lld: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506: note: using wasm-ld: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/main.py:72: note: The test suite configuration requested an individual test timeout of 0 seconds but a timeout of 900 seconds was requested on the command line. Forcing timeout to be 900 seconds.
-- Testing: 86068 of 86069 tests, 88 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90..
FAIL: Clang :: SemaCXX/attr-target-version-riscv.cpp (86054 of 86068)
******************** TEST 'Clang :: SemaCXX/attr-target-version-riscv.cpp' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
RUN: at line 1: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/clang -cc1 -internal-isystem /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/lib/clang/20/include -nostdsysteminc -triple riscv64-linux-gnu  -fsyntax-only -verify -fexceptions -fcxx-exceptions /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/SemaCXX/attr-target-version-riscv.cpp -std=c++14
+ /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/clang -cc1 -internal-isystem /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/lib/clang/20/include -nostdsysteminc -triple riscv64-linux-gnu -fsyntax-only -verify -fexceptions -fcxx-exceptions /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/SemaCXX/attr-target-version-riscv.cpp -std=c++14
=================================================================
==3823339==ERROR: AddressSanitizer: heap-use-after-free on address 0x5030000089b2 at pc 0x5f3ce727c192 bp 0x7ffcbd9fd0d0 sp 0x7ffcbd9fd0c8
READ of size 1 at 0x5030000089b2 thread T0
    #0 0x5f3ce727c191 in ascii_strncasecmp(char const*, char const*, unsigned long) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/lib/Support/StringRef.cpp:30:33
    #1 0x5f3ce727c073 in llvm::StringRef::compare_insensitive(llvm::StringRef) const /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/lib/Support/StringRef.cpp:38:17
    #2 0x5f3ce73dca5d in equals_insensitive /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/include/llvm/ADT/StringRef.h:176:38
    #3 0x5f3ce73dca5d in llvm::RISCVISAInfo::getRISCVFeaturesBitsInfo(llvm::StringRef) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/lib/TargetParser/RISCVISAInfo.cpp:1063:15
    #4 0x5f3ce87b0dce in clang::targets::RISCVTargetInfo::validateCpuSupports(llvm::StringRef) const /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Basic/Targets/RISCV.cpp:483:16
    #5 0x5f3cee187ddb in CheckMultiVersionValue(clang::Sema&, clang::FunctionDecl const*) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Sema/SemaDecl.cpp:11052:23
    #6 0x5f3cee1132a2 in CheckMultiVersionFirstFunction /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Sema/SemaDecl.cpp:11312:22
    #7 0x5f3cee1132a2 in CheckMultiVersionFunction /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Sema/SemaDecl.cpp:11773:12
    #8 0x5f3cee1132a2 in clang::Sema::CheckFunctionDeclaration(clang::Scope*, clang::FunctionDecl*, clang::LookupResult&, bool, bool) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Sema/SemaDecl.cpp:11918:7
    #9 0x5f3cee0e9995 in clang::Sema::ActOnFunctionDeclarator(clang::Scope*, clang::Declarator&, clang::DeclContext*, clang::TypeSourceInfo*, clang::LookupResult&, llvm::MutableArrayRef<clang::TemplateParameterList*>, bool&) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Sema/SemaDecl.cpp:10527:26
    #10 0x5f3cee0dc8a6 in clang::Sema::HandleDeclarator(clang::Scope*, clang::Declarator&, llvm::MutableArrayRef<clang::TemplateParameterList*>) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Sema/SemaDecl.cpp:6418:11
    #11 0x5f3cee13aeaa in clang::Sema::ActOnStartOfFunctionDef(clang::Scope*, clang::Declarator&, llvm::MutableArrayRef<clang::TemplateParameterList*>, clang::SkipBodyInfo*, clang::Sema::FnBodyKind) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Sema/SemaDecl.cpp:15279:14
    #12 0x5f3ced9250f5 in clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::LateParsedAttrList*) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Parse/Parser.cpp:1444:23
    #13 0x5f3ceda26bb5 in clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&, clang::DeclaratorContext, clang::ParsedAttributes&, clang::Parser::ParsedTemplateInfo&, clang::SourceLocation*, clang::Parser::ForRangeInit*) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Parse/ParseDecl.cpp:2460:17
    #14 0x5f3ced9228ac in clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec&, clang::AccessSpecifier) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Parse/Parser.cpp:1244:10
    #15 0x5f3ced9215f6 in clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*, clang::AccessSpecifier) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Parse/Parser.cpp:1266:12
    #16 0x5f3ced91ed5f in clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Parse/Parser.cpp:1069:14
    #17 0x5f3ced91b4c8 in clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Parse/Parser.cpp:758:12
    #18 0x5f3ced90e50e in clang::ParseAST(clang::Sema&, bool, bool) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Parse/ParseAST.cpp:171:20
    #19 0x5f3ce9318e7c in clang::FrontendAction::Execute() /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Frontend/FrontendAction.cpp:1078:8
    #20 0x5f3ce920ca7d in clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Frontend/CompilerInstance.cpp:1060:33
    #21 0x5f3ce95dabc1 in clang::ExecuteCompilerInvocation(clang::CompilerInstance*) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/FrontendTool/ExecuteCompilerInvocation.cpp:280:25
    #22 0x5f3ce0753f9a in cc1_main(llvm::ArrayRef<char const*>, char const*, void*) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/tools/driver/cc1_main.cpp:285:15
    #23 0x5f3ce074944b in ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/tools/driver/driver.cpp:217:12
    #24 0x5f3ce0747796 in clang_main(int, char**, llvm::ToolContext const&) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/tools/driver/driver.cpp:258:12
    #25 0x5f3ce0771595 in main /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/tools/clang/tools/driver/clang-driver.cpp:17:10
    #26 0x7a234cc2a1c9  (/lib/x86_64-linux-gnu/libc.so.6+0x2a1c9) (BuildId: 6d64b17fbac799e68da7ebd9985ddf9b5cb375e6)
    #27 0x7a234cc2a28a in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2a28a) (BuildId: 6d64b17fbac799e68da7ebd9985ddf9b5cb375e6)
Step 9 (stage2/asan_ubsan check) failure: stage2/asan_ubsan check (failure)
...
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506: note: using lld-link: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/lld-link
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506: note: using ld64.lld: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506: note: using wasm-ld: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506: note: using ld.lld: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/ld.lld
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506: note: using lld-link: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/lld-link
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506: note: using ld64.lld: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506: note: using wasm-ld: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/main.py:72: note: The test suite configuration requested an individual test timeout of 0 seconds but a timeout of 900 seconds was requested on the command line. Forcing timeout to be 900 seconds.
-- Testing: 86068 of 86069 tests, 88 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90..
FAIL: Clang :: SemaCXX/attr-target-version-riscv.cpp (86054 of 86068)
******************** TEST 'Clang :: SemaCXX/attr-target-version-riscv.cpp' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
RUN: at line 1: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/clang -cc1 -internal-isystem /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/lib/clang/20/include -nostdsysteminc -triple riscv64-linux-gnu  -fsyntax-only -verify -fexceptions -fcxx-exceptions /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/SemaCXX/attr-target-version-riscv.cpp -std=c++14
+ /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/clang -cc1 -internal-isystem /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/lib/clang/20/include -nostdsysteminc -triple riscv64-linux-gnu -fsyntax-only -verify -fexceptions -fcxx-exceptions /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/SemaCXX/attr-target-version-riscv.cpp -std=c++14
=================================================================
==3823339==ERROR: AddressSanitizer: heap-use-after-free on address 0x5030000089b2 at pc 0x5f3ce727c192 bp 0x7ffcbd9fd0d0 sp 0x7ffcbd9fd0c8
READ of size 1 at 0x5030000089b2 thread T0
    #0 0x5f3ce727c191 in ascii_strncasecmp(char const*, char const*, unsigned long) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/lib/Support/StringRef.cpp:30:33
    #1 0x5f3ce727c073 in llvm::StringRef::compare_insensitive(llvm::StringRef) const /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/lib/Support/StringRef.cpp:38:17
    #2 0x5f3ce73dca5d in equals_insensitive /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/include/llvm/ADT/StringRef.h:176:38
    #3 0x5f3ce73dca5d in llvm::RISCVISAInfo::getRISCVFeaturesBitsInfo(llvm::StringRef) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/lib/TargetParser/RISCVISAInfo.cpp:1063:15
    #4 0x5f3ce87b0dce in clang::targets::RISCVTargetInfo::validateCpuSupports(llvm::StringRef) const /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Basic/Targets/RISCV.cpp:483:16
    #5 0x5f3cee187ddb in CheckMultiVersionValue(clang::Sema&, clang::FunctionDecl const*) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Sema/SemaDecl.cpp:11052:23
    #6 0x5f3cee1132a2 in CheckMultiVersionFirstFunction /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Sema/SemaDecl.cpp:11312:22
    #7 0x5f3cee1132a2 in CheckMultiVersionFunction /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Sema/SemaDecl.cpp:11773:12
    #8 0x5f3cee1132a2 in clang::Sema::CheckFunctionDeclaration(clang::Scope*, clang::FunctionDecl*, clang::LookupResult&, bool, bool) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Sema/SemaDecl.cpp:11918:7
    #9 0x5f3cee0e9995 in clang::Sema::ActOnFunctionDeclarator(clang::Scope*, clang::Declarator&, clang::DeclContext*, clang::TypeSourceInfo*, clang::LookupResult&, llvm::MutableArrayRef<clang::TemplateParameterList*>, bool&) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Sema/SemaDecl.cpp:10527:26
    #10 0x5f3cee0dc8a6 in clang::Sema::HandleDeclarator(clang::Scope*, clang::Declarator&, llvm::MutableArrayRef<clang::TemplateParameterList*>) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Sema/SemaDecl.cpp:6418:11
    #11 0x5f3cee13aeaa in clang::Sema::ActOnStartOfFunctionDef(clang::Scope*, clang::Declarator&, llvm::MutableArrayRef<clang::TemplateParameterList*>, clang::SkipBodyInfo*, clang::Sema::FnBodyKind) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Sema/SemaDecl.cpp:15279:14
    #12 0x5f3ced9250f5 in clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::LateParsedAttrList*) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Parse/Parser.cpp:1444:23
    #13 0x5f3ceda26bb5 in clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&, clang::DeclaratorContext, clang::ParsedAttributes&, clang::Parser::ParsedTemplateInfo&, clang::SourceLocation*, clang::Parser::ForRangeInit*) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Parse/ParseDecl.cpp:2460:17
    #14 0x5f3ced9228ac in clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec&, clang::AccessSpecifier) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Parse/Parser.cpp:1244:10
    #15 0x5f3ced9215f6 in clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*, clang::AccessSpecifier) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Parse/Parser.cpp:1266:12
    #16 0x5f3ced91ed5f in clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Parse/Parser.cpp:1069:14
    #17 0x5f3ced91b4c8 in clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Parse/Parser.cpp:758:12
    #18 0x5f3ced90e50e in clang::ParseAST(clang::Sema&, bool, bool) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Parse/ParseAST.cpp:171:20
    #19 0x5f3ce9318e7c in clang::FrontendAction::Execute() /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Frontend/FrontendAction.cpp:1078:8
    #20 0x5f3ce920ca7d in clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Frontend/CompilerInstance.cpp:1060:33
    #21 0x5f3ce95dabc1 in clang::ExecuteCompilerInvocation(clang::CompilerInstance*) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/FrontendTool/ExecuteCompilerInvocation.cpp:280:25
    #22 0x5f3ce0753f9a in cc1_main(llvm::ArrayRef<char const*>, char const*, void*) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/tools/driver/cc1_main.cpp:285:15
    #23 0x5f3ce074944b in ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/tools/driver/driver.cpp:217:12
    #24 0x5f3ce0747796 in clang_main(int, char**, llvm::ToolContext const&) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/tools/driver/driver.cpp:258:12
    #25 0x5f3ce0771595 in main /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/tools/clang/tools/driver/clang-driver.cpp:17:10
    #26 0x7a234cc2a1c9  (/lib/x86_64-linux-gnu/libc.so.6+0x2a1c9) (BuildId: 6d64b17fbac799e68da7ebd9985ddf9b5cb375e6)
    #27 0x7a234cc2a28a in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2a28a) (BuildId: 6d64b17fbac799e68da7ebd9985ddf9b5cb375e6)
Step 12 (stage2/msan check) failure: stage2/msan check (failure)
...
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506: note: using lld-link: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_msan/bin/lld-link
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506: note: using ld64.lld: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_msan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506: note: using wasm-ld: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_msan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506: note: using ld.lld: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_msan/bin/ld.lld
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506: note: using lld-link: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_msan/bin/lld-link
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506: note: using ld64.lld: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_msan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506: note: using wasm-ld: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_msan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/main.py:72: note: The test suite configuration requested an individual test timeout of 0 seconds but a timeout of 900 seconds was requested on the command line. Forcing timeout to be 900 seconds.
-- Testing: 86067 tests, 88 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90..
FAIL: Clang :: SemaCXX/attr-target-version-riscv.cpp (86053 of 86067)
******************** TEST 'Clang :: SemaCXX/attr-target-version-riscv.cpp' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
RUN: at line 1: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_msan/bin/clang -cc1 -internal-isystem /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_msan/lib/clang/20/include -nostdsysteminc -triple riscv64-linux-gnu  -fsyntax-only -verify -fexceptions -fcxx-exceptions /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/SemaCXX/attr-target-version-riscv.cpp -std=c++14
+ /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_msan/bin/clang -cc1 -internal-isystem /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_msan/lib/clang/20/include -nostdsysteminc -triple riscv64-linux-gnu -fsyntax-only -verify -fexceptions -fcxx-exceptions /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/SemaCXX/attr-target-version-riscv.cpp -std=c++14
==595528==WARNING: MemorySanitizer: use-of-uninitialized-value
    #0 0x55555ea9dc41 in ascii_strncasecmp(char const*, char const*, unsigned long) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/lib/Support/StringRef.cpp
    #1 0x55555ea9db0e in llvm::StringRef::compare_insensitive(llvm::StringRef) const /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/lib/Support/StringRef.cpp:38:17
    #2 0x55555b42efb1 in llvm::StringRef::equals_insensitive(llvm::StringRef) const /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/include/llvm/ADT/StringRef.h:176:38
    #3 0x55555eb47908 in llvm::RISCVISAInfo::getRISCVFeaturesBitsInfo(llvm::StringRef) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/lib/TargetParser/RISCVISAInfo.cpp:1063:15
    #4 0x55555f5c7bb1 in clang::targets::RISCVTargetInfo::validateCpuSupports(llvm::StringRef) const /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Basic/Targets/RISCV.cpp:483:16
    #5 0x5555621158f9 in CheckMultiVersionValue(clang::Sema&, clang::FunctionDecl const*) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Sema/SemaDecl.cpp:11052:23
    #6 0x5555620cf8e4 in CheckMultiVersionFirstFunction /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Sema/SemaDecl.cpp:11312:22
    #7 0x5555620cf8e4 in CheckMultiVersionFunction /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Sema/SemaDecl.cpp:11773:12
    #8 0x5555620cf8e4 in clang::Sema::CheckFunctionDeclaration(clang::Scope*, clang::FunctionDecl*, clang::LookupResult&, bool, bool) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Sema/SemaDecl.cpp:11918:7
    #9 0x5555620b9719 in clang::Sema::ActOnFunctionDeclarator(clang::Scope*, clang::Declarator&, clang::DeclContext*, clang::TypeSourceInfo*, clang::LookupResult&, llvm::MutableArrayRef<clang::TemplateParameterList*>, bool&) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Sema/SemaDecl.cpp:10527:26
    #10 0x5555620b075f in clang::Sema::HandleDeclarator(clang::Scope*, clang::Declarator&, llvm::MutableArrayRef<clang::TemplateParameterList*>) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Sema/SemaDecl.cpp:6418:11
    #11 0x5555620e6eb5 in clang::Sema::ActOnStartOfFunctionDef(clang::Scope*, clang::Declarator&, llvm::MutableArrayRef<clang::TemplateParameterList*>, clang::SkipBodyInfo*, clang::Sema::FnBodyKind) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Sema/SemaDecl.cpp:15279:14
    #12 0x555561c76147 in clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::LateParsedAttrList*) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Parse/Parser.cpp:1444:23
    #13 0x555561d13b31 in clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&, clang::DeclaratorContext, clang::ParsedAttributes&, clang::Parser::ParsedTemplateInfo&, clang::SourceLocation*, clang::Parser::ForRangeInit*) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Parse/ParseDecl.cpp
    #14 0x555561c749b8 in clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec&, clang::AccessSpecifier) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Parse/Parser.cpp:1244:10
    #15 0x555561c73c5b in clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*, clang::AccessSpecifier) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Parse/Parser.cpp:1266:12
    #16 0x555561c72a9d in clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Parse/Parser.cpp:1069:14
    #17 0x555561c70084 in clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Parse/Parser.cpp:758:12
    #18 0x555561c69fa7 in clang::ParseAST(clang::Sema&, bool, bool) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Parse/ParseAST.cpp:171:20
    #19 0x55555fbb9ed7 in clang::FrontendAction::Execute() /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Frontend/FrontendAction.cpp:1078:8
    #20 0x55555fb0a790 in clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/Frontend/CompilerInstance.cpp:1060:33
    #21 0x55555fcc596d in clang::ExecuteCompilerInvocation(clang::CompilerInstance*) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/lib/FrontendTool/ExecuteCompilerInvocation.cpp:280:25
    #22 0x55555b433045 in cc1_main(llvm::ArrayRef<char const*>, char const*, void*) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/tools/driver/cc1_main.cpp:285:15
    #23 0x55555b42d7bf in ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/tools/driver/driver.cpp:217:12
    #24 0x55555b42b4b8 in clang_main(int, char**, llvm::ToolContext const&) /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/tools/driver/driver.cpp:258:12
    #25 0x55555b447678 in main /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_msan/tools/clang/tools/driver/clang-driver.cpp:17:10
    #26 0x7ffff7a2a1c9  (/lib/x86_64-linux-gnu/libc.so.6+0x2a1c9) (BuildId: 6d64b17fbac799e68da7ebd9985ddf9b5cb375e6)
    #27 0x7ffff7a2a28a in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2a28a) (BuildId: 6d64b17fbac799e68da7ebd9985ddf9b5cb375e6)
    #28 0x55555b390e64 in _start (/home/b/sanitizer-x86_64-linux-fast/build/llvm_build_msan/bin/clang-20+0x5e3ce64)


```

</details>

https://github.com/llvm/llvm-project/pull/99040

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