Clang segfaults when compiling protobuf for mips

[kraj]

Bugzilla Link	52367
Version	13.0
OS	Linux
Attachments	test case
CC	@DougGregor,@zygoloid

Extended Description

attached testcase causes clang to sigsegv

fatal error: error in backend: failed to perform tail call elimination on a call site marked musttail                                                       
PLEASE submit a bug report to https://bugs.llvm.org/ and include the crash backtrace, preprocessed source, and associated run script.                       
Stack dump:                                                                                                                                                 
0.      Program arguments: mips-yoe-linux-musl-clang++ -target mips-yoe-linux-musl -mabi=32 -mhard-float -march=mips32r2 -mbig-endian -Qunused-arguments -fs
tack-protector-strong -O2 -D_FORTIFY_SOURCE=2 -Wformat -Wformat-security -Werror=format-security --sysroot=/mnt/b/yoe/master/build/tmp/work/mips32r2-yoe-lin
ux-musl/protobuf/3.19.0-r0/recipe-sysroot -DHAVE_CONFIG_H -I. -I.. -pthread -DHAVE_PTHREAD=1 -DHAVE_ZLIB=1 -Wall -Wno-sign-compare -O2 -pipe -g -feliminate-
unused-debug-types -fmacro-prefix-map=/mnt/b/yoe/master/build/tmp/work/mips32r2-yoe-linux-musl/protobuf/3.19.0-r0=/usr/src/debug/protobuf/3.19.0-r0 -fdebug-
prefix-map=/mnt/b/yoe/master/build/tmp/work/mips32r2-yoe-linux-musl/protobuf/3.19.0-r0=/usr/src/debug/protobuf/3.19.0-r0 -fdebug-prefix-map=/mnt/b/yoe/maste
r/build/tmp/work/mips32r2-yoe-linux-musl/protobuf/3.19.0-r0/recipe-sysroot= -fdebug-prefix-map=/mnt/b/yoe/master/build/tmp/work/mips32r2-yoe-linux-musl/prot
obuf/3.19.0-r0/recipe-sysroot-native= -fvisibility-inlines-hidden -c google/protobuf/generated_message_tctable_lite.cc -fPIC -DPIC -o google/protobuf/.libs/
generated_message_tctable_lite.o                                                                                                                            
1.      <eof> parser at end of file                                                                                                                         
2.      Code generation                                                                                                                                     
3.      Running pass 'Function Pass Manager' on module 'google/protobuf/generated_message_tctable_lite.cc'.                                                 
4.      Running pass 'MIPS DAG->DAG Pattern Instruction Selection' on function '@_ZN6google8protobuf8internal8TcParser13SingularFixedIyhEEPKcPNS0_11MessageL
iteES5_PNS1_12ParseContextEPKNS1_16TcParseTableBaseEyNS1_11TcFieldDataE'                                                                                    
Stack dump without symbol names (ensure you have llvm-symbolizer in your PATH or set the environment var `LLVM_SYMBOLIZER_PATH` to point to it):            
clang-13: error: clang frontend command failed with exit code 70 (use -v to see invocation)                                                                 clang version 13.0.0 (https://github.com/llvm/llvm-project d7b669b3a30345cfcdb2fde2af6f48aa4b94845d)                                                        Target: mips-yoe-linux-musl

[Endilll]

Still crashing as of post-17 trunk: https://godbolt.org/z/9jMGs887e
Reduced by C-Reduce:

typedef unsigned long long uint64_t;
class MessageLite;
class ParseContext;
struct TcFieldData {};
struct TcParseTableBase;

class TcParser {
  static const char *
  ToTagDispatch(MessageLite *msg, const char *ptr,
                ParseContext *ctx,
                const TcParseTableBase *table,
                uint64_t hasbits,
                TcFieldData data);
  template <typename>
  static const char *
  SingularFixed(MessageLite *msg, const char *ptr,
                ParseContext *ctx,
                const TcParseTableBase *table,
                uint64_t hasbits,
                TcFieldData data);
};

template <typename>
const char *TcParser::SingularFixed(
    MessageLite *msg, const char *ptr,
    ParseContext *ctx,
    const TcParseTableBase *table,
    uint64_t hasbits, TcFieldData data) {
  [[clang::musttail]] return ToTagDispatch(msg, ptr, ctx, table, hasbits, data);
}
template const char *TcParser::SingularFixed<uint64_t>(
    MessageLite *msg, const char *ptr,
    ParseContext *ctx,
    const TcParseTableBase *table,
    uint64_t hasbits, TcFieldData data);

[llvmbot]

@llvm/issue-subscribers-backend-mips

[kraj]

Still fails with clang-20