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@aanm aanm commented Jan 19, 2016

Please test if to see if changing from /112 to /96 broke anything.

Signed-off-by: André Martins <aanm90@gmail.com>
@aanm aanm force-pushed the build4to6endpointaddress branch from 94a151a to 605c22c Compare January 19, 2016 01:36
Signed-off-by: André Martins <aanm90@gmail.com>
@aanm aanm force-pushed the build4to6endpointaddress branch from 605c22c to e65f7bf Compare January 19, 2016 01:39
tgraf added a commit that referenced this pull request Jan 19, 2016
@tgraf tgraf merged commit d71388f into master Jan 19, 2016
@tgraf tgraf deleted the build4to6endpointaddress branch January 19, 2016 11:40
tgraf added a commit that referenced this pull request Jul 4, 2016
@Cyrus008 Cyrus008 mentioned this pull request May 4, 2021
ruicao93 referenced this pull request in volcengine/cilium Mar 27, 2024
* IPAM: add allocator provider for Volcengine

support gc tags by user custom or cilium managed by default, but not support VKE (Volcengine K8s Engine) cluster tags detect

Signed-off-by: Jinzhu Lee <lijinzhu.azl@bytedance.com>
msune added a commit to msune/cilium that referenced this pull request Aug 11, 2025
Running all memmove tests in a single function made clang backend
crash (`Branch target out of insn range`).

It doesn't seem to correlate with a single test. Commenting from test
everything after:

```
test___builtin_memmove5_single(48);
```

Makes the test compile and pass. Inverting the selection, and only running
`test___builtin_memmove5_single(50);` to `test___builtin_memmove5_single(128);`
also makes the test compile & pass.

Split `test_builtin_memmove` into two to work-around.

Note: Unsure how we can report this to CLANG in a simple repro, given that it
seems to be "additive".

---

Details:

```
fatal error: error in backend: Branch target out of insn range
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace, preprocessed source, and associated run script.
Stack dump:
0.	Program arguments: clang -I/home/user/dev/cilium2/bpf -I/home/user/dev/cilium2/bpf/include -g -O2 --target=bpf -std=gnu99 -nostdinc -ftrap-function=__undefined_trap -Wall -Wextra -Werror -Wshadow -Wno-address-of-packed-member -Wno-unknown-warning-option -Wno-gnu-variable-sized-type-not-at-end -Wimplicit-int-conversion -Wenum-conversion -Wimplicit-fallthrough -MD -mcpu=v3 -c builtins.c -o builtins.o
1.	<eof> parser at end of file
2.	Code generation
 #0 0x00007211191a63bf llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) build-llvm/tools/clang/stage2-bins/llvm/lib/Support/Unix/Signals.inc:723:13
 cilium#1 0x00007211191a44f9 llvm::sys::RunSignalHandlers() build-llvm/tools/clang/stage2-bins/llvm/lib/Support/Signals.cpp:106:18
 cilium#2 0x00007211190efff3 build-llvm/tools/clang/stage2-bins/llvm/lib/Support/CrashRecoveryContext.cpp:73:5
 cilium#3 0x00007211190effa2 (/usr/lib/llvm-18/bin/../lib/libLLVM.so.18.1+0xceffa2)
 cilium#4 0x00007211191a0c70 llvm::sys::Process::Exit(int, bool) build-llvm/tools/clang/stage2-bins/llvm/lib/Support/Process.cpp:102:5
 cilium#5 0x000055d222d2891b (/usr/lib/llvm-18/bin/clang+0x1491b)
 cilium#6 0x00007211190fe01c _M_data /usr/lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/basic_string.h:223:28
 cilium#7 0x00007211190fe01c _M_is_local /usr/lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/basic_string.h:264:6
 cilium#8 0x00007211190fe01c _M_dispose /usr/lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/basic_string.h:282:7
 cilium#9 0x00007211190fe01c ~basic_string /usr/lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/basic_string.h:804:9
clang: error: clang frontend command failed with exit code 70 (use -v to see invocation)
Ubuntu clang version 18.1.3 (1ubuntu1)
Target: bpf
Thread model: posix
InstalledDir: /usr/bin
clang: note: diagnostic msg:
********************

PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang: note: diagnostic msg: /tmp/builtins-eae2ef.c
clang: note: diagnostic msg: /tmp/builtins-eae2ef.sh
clang: note: diagnostic msg:

********************
```

Signed-off-by: Marc Suñé <marc.sune@isovalent.com>
msune added a commit to msune/cilium that referenced this pull request Aug 11, 2025
Running all memmove tests in a single function made clang backend
crash (`Branch target out of insn range`).

It doesn't seem to correlate with a single test. Commenting from test
everything after:

```
test___builtin_memmove5_single(48);
```

Makes the test compile and pass. Inverting the selection, and only running
`test___builtin_memmove5_single(50);` to `test___builtin_memmove5_single(128);`
also makes the test compile & pass.

Split `test_builtin_memmove` into two to work-around.

Note: Unsure how we can report this to CLANG in a simple repro, given that it
seems to be "additive".

---

Details:

```
fatal error: error in backend: Branch target out of insn range
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace, preprocessed source, and associated run script.
Stack dump:
0.	Program arguments: clang -I/home/user/dev/cilium2/bpf -I/home/user/dev/cilium2/bpf/include -g -O2 --target=bpf -std=gnu99 -nostdinc -ftrap-function=__undefined_trap -Wall -Wextra -Werror -Wshadow -Wno-address-of-packed-member -Wno-unknown-warning-option -Wno-gnu-variable-sized-type-not-at-end -Wimplicit-int-conversion -Wenum-conversion -Wimplicit-fallthrough -MD -mcpu=v3 -c builtins.c -o builtins.o
1.	<eof> parser at end of file
2.	Code generation
 #0 0x00007211191a63bf llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) build-llvm/tools/clang/stage2-bins/llvm/lib/Support/Unix/Signals.inc:723:13
 cilium#1 0x00007211191a44f9 llvm::sys::RunSignalHandlers() build-llvm/tools/clang/stage2-bins/llvm/lib/Support/Signals.cpp:106:18
 cilium#2 0x00007211190efff3 build-llvm/tools/clang/stage2-bins/llvm/lib/Support/CrashRecoveryContext.cpp:73:5
 cilium#3 0x00007211190effa2 (/usr/lib/llvm-18/bin/../lib/libLLVM.so.18.1+0xceffa2)
 cilium#4 0x00007211191a0c70 llvm::sys::Process::Exit(int, bool) build-llvm/tools/clang/stage2-bins/llvm/lib/Support/Process.cpp:102:5
 cilium#5 0x000055d222d2891b (/usr/lib/llvm-18/bin/clang+0x1491b)
 cilium#6 0x00007211190fe01c _M_data /usr/lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/basic_string.h:223:28
 cilium#7 0x00007211190fe01c _M_is_local /usr/lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/basic_string.h:264:6
 cilium#8 0x00007211190fe01c _M_dispose /usr/lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/basic_string.h:282:7
 cilium#9 0x00007211190fe01c ~basic_string /usr/lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/basic_string.h:804:9
clang: error: clang frontend command failed with exit code 70 (use -v to see invocation)
Ubuntu clang version 18.1.3 (1ubuntu1)
Target: bpf
Thread model: posix
InstalledDir: /usr/bin
clang: note: diagnostic msg:
********************

PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang: note: diagnostic msg: /tmp/builtins-eae2ef.c
clang: note: diagnostic msg: /tmp/builtins-eae2ef.sh
clang: note: diagnostic msg:

********************
```

Signed-off-by: Marc Suñé <marc.sune@isovalent.com>
msune added a commit to msune/cilium that referenced this pull request Aug 11, 2025
Running all memmove tests in a single function made clang backend
crash (`Branch target out of insn range`).

It doesn't seem to correlate with a single test. Commenting from test
everything after:

```
test___builtin_memmove5_single(48);
```

Makes the test compile and pass. Inverting the selection, and only running
`test___builtin_memmove5_single(50);` to `test___builtin_memmove5_single(128);`
also makes the test compile & pass.

Split `test_builtin_memmove` into two to work-around.

Note: Unsure how we can report this to CLANG in a simple repro, given that it
seems to be "additive".

---

Details:

```
fatal error: error in backend: Branch target out of insn range
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace, preprocessed source, and associated run script.
Stack dump:
0.	Program arguments: clang -I/home/user/dev/cilium2/bpf -I/home/user/dev/cilium2/bpf/include -g -O2 --target=bpf -std=gnu99 -nostdinc -ftrap-function=__undefined_trap -Wall -Wextra -Werror -Wshadow -Wno-address-of-packed-member -Wno-unknown-warning-option -Wno-gnu-variable-sized-type-not-at-end -Wimplicit-int-conversion -Wenum-conversion -Wimplicit-fallthrough -MD -mcpu=v3 -c builtins.c -o builtins.o
1.	<eof> parser at end of file
2.	Code generation
 #0 0x00007211191a63bf llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) build-llvm/tools/clang/stage2-bins/llvm/lib/Support/Unix/Signals.inc:723:13
 cilium#1 0x00007211191a44f9 llvm::sys::RunSignalHandlers() build-llvm/tools/clang/stage2-bins/llvm/lib/Support/Signals.cpp:106:18
 cilium#2 0x00007211190efff3 build-llvm/tools/clang/stage2-bins/llvm/lib/Support/CrashRecoveryContext.cpp:73:5
 cilium#3 0x00007211190effa2 (/usr/lib/llvm-18/bin/../lib/libLLVM.so.18.1+0xceffa2)
 cilium#4 0x00007211191a0c70 llvm::sys::Process::Exit(int, bool) build-llvm/tools/clang/stage2-bins/llvm/lib/Support/Process.cpp:102:5
 cilium#5 0x000055d222d2891b (/usr/lib/llvm-18/bin/clang+0x1491b)
 cilium#6 0x00007211190fe01c _M_data /usr/lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/basic_string.h:223:28
 cilium#7 0x00007211190fe01c _M_is_local /usr/lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/basic_string.h:264:6
 cilium#8 0x00007211190fe01c _M_dispose /usr/lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/basic_string.h:282:7
 cilium#9 0x00007211190fe01c ~basic_string /usr/lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/basic_string.h:804:9
clang: error: clang frontend command failed with exit code 70 (use -v to see invocation)
Ubuntu clang version 18.1.3 (1ubuntu1)
Target: bpf
Thread model: posix
InstalledDir: /usr/bin
clang: note: diagnostic msg:
********************

PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang: note: diagnostic msg: /tmp/builtins-eae2ef.c
clang: note: diagnostic msg: /tmp/builtins-eae2ef.sh
clang: note: diagnostic msg:

********************
```

Signed-off-by: Marc Suñé <marc.sune@isovalent.com>
msune added a commit to msune/cilium that referenced this pull request Aug 13, 2025
Running all memmove tests in a single function made clang backend
crash (`Branch target out of insn range`).

It doesn't seem to correlate with a single test. Commenting from test
everything after:

```
test___builtin_memmove5_single(48);
```

Makes the test compile and pass. Inverting the selection, and only running
`test___builtin_memmove5_single(50);` to `test___builtin_memmove5_single(128);`
also makes the test compile & pass.

Split `test_builtin_memmove` into two to work-around.

Note: Unsure how we can report this to CLANG in a simple repro, given that it
seems to be "additive".

---

Details:

```
fatal error: error in backend: Branch target out of insn range
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace, preprocessed source, and associated run script.
Stack dump:
0.	Program arguments: clang -I/home/user/dev/cilium2/bpf -I/home/user/dev/cilium2/bpf/include -g -O2 --target=bpf -std=gnu99 -nostdinc -ftrap-function=__undefined_trap -Wall -Wextra -Werror -Wshadow -Wno-address-of-packed-member -Wno-unknown-warning-option -Wno-gnu-variable-sized-type-not-at-end -Wimplicit-int-conversion -Wenum-conversion -Wimplicit-fallthrough -MD -mcpu=v3 -c builtins.c -o builtins.o
1.	<eof> parser at end of file
2.	Code generation
 #0 0x00007211191a63bf llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) build-llvm/tools/clang/stage2-bins/llvm/lib/Support/Unix/Signals.inc:723:13
 cilium#1 0x00007211191a44f9 llvm::sys::RunSignalHandlers() build-llvm/tools/clang/stage2-bins/llvm/lib/Support/Signals.cpp:106:18
 cilium#2 0x00007211190efff3 build-llvm/tools/clang/stage2-bins/llvm/lib/Support/CrashRecoveryContext.cpp:73:5
 cilium#3 0x00007211190effa2 (/usr/lib/llvm-18/bin/../lib/libLLVM.so.18.1+0xceffa2)
 cilium#4 0x00007211191a0c70 llvm::sys::Process::Exit(int, bool) build-llvm/tools/clang/stage2-bins/llvm/lib/Support/Process.cpp:102:5
 cilium#5 0x000055d222d2891b (/usr/lib/llvm-18/bin/clang+0x1491b)
 cilium#6 0x00007211190fe01c _M_data /usr/lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/basic_string.h:223:28
 cilium#7 0x00007211190fe01c _M_is_local /usr/lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/basic_string.h:264:6
 cilium#8 0x00007211190fe01c _M_dispose /usr/lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/basic_string.h:282:7
 cilium#9 0x00007211190fe01c ~basic_string /usr/lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/basic_string.h:804:9
clang: error: clang frontend command failed with exit code 70 (use -v to see invocation)
Ubuntu clang version 18.1.3 (1ubuntu1)
Target: bpf
Thread model: posix
InstalledDir: /usr/bin
clang: note: diagnostic msg:
********************

PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang: note: diagnostic msg: /tmp/builtins-eae2ef.c
clang: note: diagnostic msg: /tmp/builtins-eae2ef.sh
clang: note: diagnostic msg:

********************
```

Signed-off-by: Marc Suñé <marc.sune@isovalent.com>
msune added a commit to msune/cilium that referenced this pull request Aug 14, 2025
Running all memmove tests in a single function made clang backend
crash (`Branch target out of insn range`).

It doesn't seem to correlate with a single test. Commenting from test
everything after:

```
test___builtin_memmove5_single(48);
```

Makes the test compile and pass. Inverting the selection, and only running
`test___builtin_memmove5_single(50);` to `test___builtin_memmove5_single(128);`
also makes the test compile & pass.

Split `test_builtin_memmove` into two to work-around.

Note: Unsure how we can report this to CLANG in a simple repro, given that it
seems to be "additive".

---

Details:

```
fatal error: error in backend: Branch target out of insn range
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace, preprocessed source, and associated run script.
Stack dump:
0.	Program arguments: clang -I/home/user/dev/cilium2/bpf -I/home/user/dev/cilium2/bpf/include -g -O2 --target=bpf -std=gnu99 -nostdinc -ftrap-function=__undefined_trap -Wall -Wextra -Werror -Wshadow -Wno-address-of-packed-member -Wno-unknown-warning-option -Wno-gnu-variable-sized-type-not-at-end -Wimplicit-int-conversion -Wenum-conversion -Wimplicit-fallthrough -MD -mcpu=v3 -c builtins.c -o builtins.o
1.	<eof> parser at end of file
2.	Code generation
 #0 0x00007211191a63bf llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) build-llvm/tools/clang/stage2-bins/llvm/lib/Support/Unix/Signals.inc:723:13
 cilium#1 0x00007211191a44f9 llvm::sys::RunSignalHandlers() build-llvm/tools/clang/stage2-bins/llvm/lib/Support/Signals.cpp:106:18
 cilium#2 0x00007211190efff3 build-llvm/tools/clang/stage2-bins/llvm/lib/Support/CrashRecoveryContext.cpp:73:5
 cilium#3 0x00007211190effa2 (/usr/lib/llvm-18/bin/../lib/libLLVM.so.18.1+0xceffa2)
 cilium#4 0x00007211191a0c70 llvm::sys::Process::Exit(int, bool) build-llvm/tools/clang/stage2-bins/llvm/lib/Support/Process.cpp:102:5
 cilium#5 0x000055d222d2891b (/usr/lib/llvm-18/bin/clang+0x1491b)
 cilium#6 0x00007211190fe01c _M_data /usr/lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/basic_string.h:223:28
 cilium#7 0x00007211190fe01c _M_is_local /usr/lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/basic_string.h:264:6
 cilium#8 0x00007211190fe01c _M_dispose /usr/lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/basic_string.h:282:7
 cilium#9 0x00007211190fe01c ~basic_string /usr/lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/basic_string.h:804:9
clang: error: clang frontend command failed with exit code 70 (use -v to see invocation)
Ubuntu clang version 18.1.3 (1ubuntu1)
Target: bpf
Thread model: posix
InstalledDir: /usr/bin
clang: note: diagnostic msg:
********************

PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang: note: diagnostic msg: /tmp/builtins-eae2ef.c
clang: note: diagnostic msg: /tmp/builtins-eae2ef.sh
clang: note: diagnostic msg:

********************
```

Signed-off-by: Marc Suñé <marc.sune@isovalent.com>
msune added a commit to msune/cilium that referenced this pull request Aug 14, 2025
Running all memmove tests in a single function made clang backend
crash (`Branch target out of insn range`).

It doesn't seem to correlate with a single test. Commenting from test
everything after:

```
test___builtin_memmove5_single(48);
```

Makes the test compile and pass. Inverting the selection, and only running
`test___builtin_memmove5_single(50);` to `test___builtin_memmove5_single(128);`
also makes the test compile & pass.

Split `test_builtin_memmove` into two to work-around.

Note: Unsure how we can report this to CLANG in a simple repro, given that it
seems to be "additive".

---

Details:

```
fatal error: error in backend: Branch target out of insn range
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace, preprocessed source, and associated run script.
Stack dump:
0.	Program arguments: clang -I/home/user/dev/cilium2/bpf -I/home/user/dev/cilium2/bpf/include -g -O2 --target=bpf -std=gnu99 -nostdinc -ftrap-function=__undefined_trap -Wall -Wextra -Werror -Wshadow -Wno-address-of-packed-member -Wno-unknown-warning-option -Wno-gnu-variable-sized-type-not-at-end -Wimplicit-int-conversion -Wenum-conversion -Wimplicit-fallthrough -MD -mcpu=v3 -c builtins.c -o builtins.o
1.	<eof> parser at end of file
2.	Code generation
 #0 0x00007211191a63bf llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) build-llvm/tools/clang/stage2-bins/llvm/lib/Support/Unix/Signals.inc:723:13
 cilium#1 0x00007211191a44f9 llvm::sys::RunSignalHandlers() build-llvm/tools/clang/stage2-bins/llvm/lib/Support/Signals.cpp:106:18
 cilium#2 0x00007211190efff3 build-llvm/tools/clang/stage2-bins/llvm/lib/Support/CrashRecoveryContext.cpp:73:5
 cilium#3 0x00007211190effa2 (/usr/lib/llvm-18/bin/../lib/libLLVM.so.18.1+0xceffa2)
 cilium#4 0x00007211191a0c70 llvm::sys::Process::Exit(int, bool) build-llvm/tools/clang/stage2-bins/llvm/lib/Support/Process.cpp:102:5
 cilium#5 0x000055d222d2891b (/usr/lib/llvm-18/bin/clang+0x1491b)
 cilium#6 0x00007211190fe01c _M_data /usr/lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/basic_string.h:223:28
 cilium#7 0x00007211190fe01c _M_is_local /usr/lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/basic_string.h:264:6
 cilium#8 0x00007211190fe01c _M_dispose /usr/lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/basic_string.h:282:7
 cilium#9 0x00007211190fe01c ~basic_string /usr/lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/basic_string.h:804:9
clang: error: clang frontend command failed with exit code 70 (use -v to see invocation)
Ubuntu clang version 18.1.3 (1ubuntu1)
Target: bpf
Thread model: posix
InstalledDir: /usr/bin
clang: note: diagnostic msg:
********************

PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang: note: diagnostic msg: /tmp/builtins-eae2ef.c
clang: note: diagnostic msg: /tmp/builtins-eae2ef.sh
clang: note: diagnostic msg:

********************
```

Signed-off-by: Marc Suñé <marc.sune@isovalent.com>
github-merge-queue bot pushed a commit that referenced this pull request Aug 14, 2025
Running all memmove tests in a single function made clang backend
crash (`Branch target out of insn range`).

It doesn't seem to correlate with a single test. Commenting from test
everything after:

```
test___builtin_memmove5_single(48);
```

Makes the test compile and pass. Inverting the selection, and only running
`test___builtin_memmove5_single(50);` to `test___builtin_memmove5_single(128);`
also makes the test compile & pass.

Split `test_builtin_memmove` into two to work-around.

Note: Unsure how we can report this to CLANG in a simple repro, given that it
seems to be "additive".

---

Details:

```
fatal error: error in backend: Branch target out of insn range
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace, preprocessed source, and associated run script.
Stack dump:
0.	Program arguments: clang -I/home/user/dev/cilium2/bpf -I/home/user/dev/cilium2/bpf/include -g -O2 --target=bpf -std=gnu99 -nostdinc -ftrap-function=__undefined_trap -Wall -Wextra -Werror -Wshadow -Wno-address-of-packed-member -Wno-unknown-warning-option -Wno-gnu-variable-sized-type-not-at-end -Wimplicit-int-conversion -Wenum-conversion -Wimplicit-fallthrough -MD -mcpu=v3 -c builtins.c -o builtins.o
1.	<eof> parser at end of file
2.	Code generation
 #0 0x00007211191a63bf llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) build-llvm/tools/clang/stage2-bins/llvm/lib/Support/Unix/Signals.inc:723:13
 #1 0x00007211191a44f9 llvm::sys::RunSignalHandlers() build-llvm/tools/clang/stage2-bins/llvm/lib/Support/Signals.cpp:106:18
 #2 0x00007211190efff3 build-llvm/tools/clang/stage2-bins/llvm/lib/Support/CrashRecoveryContext.cpp:73:5
 #3 0x00007211190effa2 (/usr/lib/llvm-18/bin/../lib/libLLVM.so.18.1+0xceffa2)
 #4 0x00007211191a0c70 llvm::sys::Process::Exit(int, bool) build-llvm/tools/clang/stage2-bins/llvm/lib/Support/Process.cpp:102:5
 #5 0x000055d222d2891b (/usr/lib/llvm-18/bin/clang+0x1491b)
 #6 0x00007211190fe01c _M_data /usr/lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/basic_string.h:223:28
 #7 0x00007211190fe01c _M_is_local /usr/lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/basic_string.h:264:6
 #8 0x00007211190fe01c _M_dispose /usr/lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/basic_string.h:282:7
 #9 0x00007211190fe01c ~basic_string /usr/lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/basic_string.h:804:9
clang: error: clang frontend command failed with exit code 70 (use -v to see invocation)
Ubuntu clang version 18.1.3 (1ubuntu1)
Target: bpf
Thread model: posix
InstalledDir: /usr/bin
clang: note: diagnostic msg:
********************

PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang: note: diagnostic msg: /tmp/builtins-eae2ef.c
clang: note: diagnostic msg: /tmp/builtins-eae2ef.sh
clang: note: diagnostic msg:

********************
```

Signed-off-by: Marc Suñé <marc.sune@isovalent.com>
rabelmervin pushed a commit to rabelmervin/cilium that referenced this pull request Aug 18, 2025
Running all memmove tests in a single function made clang backend
crash (`Branch target out of insn range`).

It doesn't seem to correlate with a single test. Commenting from test
everything after:

```
test___builtin_memmove5_single(48);
```

Makes the test compile and pass. Inverting the selection, and only running
`test___builtin_memmove5_single(50);` to `test___builtin_memmove5_single(128);`
also makes the test compile & pass.

Split `test_builtin_memmove` into two to work-around.

Note: Unsure how we can report this to CLANG in a simple repro, given that it
seems to be "additive".

---

Details:

```
fatal error: error in backend: Branch target out of insn range
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace, preprocessed source, and associated run script.
Stack dump:
0.	Program arguments: clang -I/home/user/dev/cilium2/bpf -I/home/user/dev/cilium2/bpf/include -g -O2 --target=bpf -std=gnu99 -nostdinc -ftrap-function=__undefined_trap -Wall -Wextra -Werror -Wshadow -Wno-address-of-packed-member -Wno-unknown-warning-option -Wno-gnu-variable-sized-type-not-at-end -Wimplicit-int-conversion -Wenum-conversion -Wimplicit-fallthrough -MD -mcpu=v3 -c builtins.c -o builtins.o
1.	<eof> parser at end of file
2.	Code generation
 #0 0x00007211191a63bf llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) build-llvm/tools/clang/stage2-bins/llvm/lib/Support/Unix/Signals.inc:723:13
 cilium#1 0x00007211191a44f9 llvm::sys::RunSignalHandlers() build-llvm/tools/clang/stage2-bins/llvm/lib/Support/Signals.cpp:106:18
 cilium#2 0x00007211190efff3 build-llvm/tools/clang/stage2-bins/llvm/lib/Support/CrashRecoveryContext.cpp:73:5
 cilium#3 0x00007211190effa2 (/usr/lib/llvm-18/bin/../lib/libLLVM.so.18.1+0xceffa2)
 cilium#4 0x00007211191a0c70 llvm::sys::Process::Exit(int, bool) build-llvm/tools/clang/stage2-bins/llvm/lib/Support/Process.cpp:102:5
 cilium#5 0x000055d222d2891b (/usr/lib/llvm-18/bin/clang+0x1491b)
 cilium#6 0x00007211190fe01c _M_data /usr/lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/basic_string.h:223:28
 cilium#7 0x00007211190fe01c _M_is_local /usr/lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/basic_string.h:264:6
 cilium#8 0x00007211190fe01c _M_dispose /usr/lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/basic_string.h:282:7
 cilium#9 0x00007211190fe01c ~basic_string /usr/lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/basic_string.h:804:9
clang: error: clang frontend command failed with exit code 70 (use -v to see invocation)
Ubuntu clang version 18.1.3 (1ubuntu1)
Target: bpf
Thread model: posix
InstalledDir: /usr/bin
clang: note: diagnostic msg:
********************

PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang: note: diagnostic msg: /tmp/builtins-eae2ef.c
clang: note: diagnostic msg: /tmp/builtins-eae2ef.sh
clang: note: diagnostic msg:

********************
```

Signed-off-by: Marc Suñé <marc.sune@isovalent.com>
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