[clang] [clang][bytecode][NFC] Switch BitcastBuffer to SmallVector (PR #114677)

[LLVM Continuous Integration via cfe-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `sanitizer-x86_64-linux-bootstrap-asan` running on `sanitizer-buildbot1` while building `clang` at step 2 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/52/builds/3429

<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-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506: note: using lld-link: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/lld-link
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506: note: using ld64.lld: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506: note: using wasm-ld: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506: note: using ld.lld: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/ld.lld
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506: note: using lld-link: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/lld-link
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506: note: using ld64.lld: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506: note: using wasm-ld: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/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: 86841 of 86842 tests, 88 workers --
Testing:  0.. 10
FAIL: Clang :: Interpreter/inline-virtual.cpp (12584 of 86841)
******************** TEST 'Clang :: Interpreter/inline-virtual.cpp' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
RUN: at line 6: cat /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/clang/test/Interpreter/inline-virtual.cpp | /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/clang-repl -Xcc -fno-rtti -Xcc -fno-sized-deallocation      | /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/FileCheck /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/clang/test/Interpreter/inline-virtual.cpp
+ cat /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/clang/test/Interpreter/inline-virtual.cpp
+ /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/FileCheck /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/clang/test/Interpreter/inline-virtual.cpp
+ /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/clang-repl -Xcc -fno-rtti -Xcc -fno-sized-deallocation
RUN: at line 8: cat /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/clang/test/Interpreter/inline-virtual.cpp | /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/clang-repl -Xcc -fno-rtti -Xcc -fno-sized-deallocation      -Xcc -O2 | /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/FileCheck /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/clang/test/Interpreter/inline-virtual.cpp
+ /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/FileCheck /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/clang/test/Interpreter/inline-virtual.cpp
+ /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/clang-repl -Xcc -fno-rtti -Xcc -fno-sized-deallocation -Xcc -O2
+ cat /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/clang/test/Interpreter/inline-virtual.cpp
JIT session error: In graph incr_module_25-jitted-objectbuffer, section .text.startup: relocation target "_ZTV1A" at address 0x74a45701e000 is out of range of Delta32 fixup at 0x70a45510f013 (<anonymous block> @ 0x70a45510f010 + 0x3)
error: Failed to materialize symbols: { (main, { __orc_init_func.incr_module_25, a2, $.incr_module_25.__inits.0 }) }
error: Failed to materialize symbols: { (main, { __orc_init_func.incr_module_25 }) }
/home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/clang/test/Interpreter/inline-virtual.cpp:26:11: error: CHECK: expected string not found in input
// CHECK: ~A(2)
          ^
<stdin>:1:262: note: scanning from here
clang-repl> clang-repl> clang-repl> clang-repl> clang-repl> clang-repl> clang-repl... clang-repl> clang-repl... clang-repl> clang-repl> clang-repl> clang-repl> clang-repl> clang-repl> clang-repl> clang-repl> clang-repl> clang-repl> clang-repl> clang-repl> ~A(1)
                                                                                                                                                                                                                                                                     ^

Input file: <stdin>
Check file: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/clang/test/Interpreter/inline-virtual.cpp

-dump-input=help explains the following input dump.

Input was:
<<<<<<
          1: clang-repl> clang-repl> clang-repl> clang-repl> clang-repl> clang-repl> clang-repl... clang-repl> clang-repl... clang-repl> clang-repl> clang-repl> clang-repl> clang-repl> clang-repl> clang-repl> clang-repl> clang-repl> clang-repl> clang-repl> clang-repl> ~A(1) 
check:26                                                                                                                                                                                                                                                                          X error: no match found
          2: clang-repl> clang-repl> clang-repl> clang-repl> clang-repl> clang-repl>  
check:26     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>>>>>

--

Step 10 (stage2/asan check) failure: stage2/asan check (failure)
...
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506: note: using lld-link: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/lld-link
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506: note: using ld64.lld: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506: note: using wasm-ld: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506: note: using ld.lld: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/ld.lld
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506: note: using lld-link: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/lld-link
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506: note: using ld64.lld: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506: note: using wasm-ld: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/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: 86841 of 86842 tests, 88 workers --
Testing:  0.. 10
FAIL: Clang :: Interpreter/inline-virtual.cpp (12584 of 86841)
******************** TEST 'Clang :: Interpreter/inline-virtual.cpp' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
RUN: at line 6: cat /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/clang/test/Interpreter/inline-virtual.cpp | /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/clang-repl -Xcc -fno-rtti -Xcc -fno-sized-deallocation      | /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/FileCheck /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/clang/test/Interpreter/inline-virtual.cpp
+ cat /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/clang/test/Interpreter/inline-virtual.cpp
+ /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/FileCheck /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/clang/test/Interpreter/inline-virtual.cpp
+ /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/clang-repl -Xcc -fno-rtti -Xcc -fno-sized-deallocation
RUN: at line 8: cat /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/clang/test/Interpreter/inline-virtual.cpp | /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/clang-repl -Xcc -fno-rtti -Xcc -fno-sized-deallocation      -Xcc -O2 | /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/FileCheck /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/clang/test/Interpreter/inline-virtual.cpp
+ /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/FileCheck /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/clang/test/Interpreter/inline-virtual.cpp
+ /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/clang-repl -Xcc -fno-rtti -Xcc -fno-sized-deallocation -Xcc -O2
+ cat /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/clang/test/Interpreter/inline-virtual.cpp
JIT session error: In graph incr_module_25-jitted-objectbuffer, section .text.startup: relocation target "_ZTV1A" at address 0x74a45701e000 is out of range of Delta32 fixup at 0x70a45510f013 (<anonymous block> @ 0x70a45510f010 + 0x3)
error: Failed to materialize symbols: { (main, { __orc_init_func.incr_module_25, a2, $.incr_module_25.__inits.0 }) }
error: Failed to materialize symbols: { (main, { __orc_init_func.incr_module_25 }) }
/home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/clang/test/Interpreter/inline-virtual.cpp:26:11: error: CHECK: expected string not found in input
// CHECK: ~A(2)
          ^
<stdin>:1:262: note: scanning from here
clang-repl> clang-repl> clang-repl> clang-repl> clang-repl> clang-repl> clang-repl... clang-repl> clang-repl... clang-repl> clang-repl> clang-repl> clang-repl> clang-repl> clang-repl> clang-repl> clang-repl> clang-repl> clang-repl> clang-repl> clang-repl> ~A(1)
                                                                                                                                                                                                                                                                     ^

Input file: <stdin>
Check file: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/clang/test/Interpreter/inline-virtual.cpp

-dump-input=help explains the following input dump.

Input was:
<<<<<<
          1: clang-repl> clang-repl> clang-repl> clang-repl> clang-repl> clang-repl> clang-repl... clang-repl> clang-repl... clang-repl> clang-repl> clang-repl> clang-repl> clang-repl> clang-repl> clang-repl> clang-repl> clang-repl> clang-repl> clang-repl> clang-repl> ~A(1) 
check:26                                                                                                                                                                                                                                                                          X error: no match found
          2: clang-repl> clang-repl> clang-repl> clang-repl> clang-repl> clang-repl>  
check:26     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>>>>>

--


```

</details>

https://github.com/llvm/llvm-project/pull/114677