[llvm] [AArch64][PAC] Rework the expansion of AUT/AUTPAC pseudos (PR #169699)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

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

Full details are available at: https://lab.llvm.org/buildbot/#/builders/66/builds/34005

<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)
...
-- Install configuration: "Release"
[418/424] Generating MSAN_INST_GTEST.gtest-all.cc.x86_64-with-call.o
[419/424] Generating MSAN_INST_GTEST.gtest-all.cc.x86_64.o
[420/424] Generating MSAN_INST_TEST_OBJECTS.msan_test.cpp.x86_64-with-call.o
[421/424] Generating Msan-x86_64-with-call-Test
[422/424] Generating MSAN_INST_TEST_OBJECTS.msan_test.cpp.x86_64.o
[423/424] Generating Msan-x86_64-Test
[423/424] Running compiler_rt regression tests
-- Testing: 11696 tests, 64 workers --
Testing:  0.. 10.. 20.. 30
FAIL: DataFlowSanitizer-x86_64 :: release_shadow_space.c (4041 of 11696)
******************** TEST 'DataFlowSanitizer-x86_64 :: release_shadow_space.c' FAILED ********************
Exit Code: -6

Command Output (stdout):
--
# RUN: at line 1
/home/b/sanitizer-x86_64-linux/build/build_default/./bin/clang  -fsanitize=dataflow  -m64  /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/dfsan/release_shadow_space.c -o /home/b/sanitizer-x86_64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/test/dfsan/X86_64Config/Output/release_shadow_space.c.tmp &&  /home/b/sanitizer-x86_64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/test/dfsan/X86_64Config/Output/release_shadow_space.c.tmp
# executed command: /home/b/sanitizer-x86_64-linux/build/build_default/./bin/clang -fsanitize=dataflow -m64 /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/dfsan/release_shadow_space.c -o /home/b/sanitizer-x86_64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/test/dfsan/X86_64Config/Output/release_shadow_space.c.tmp
# note: command had no output on stdout or stderr
# executed command: /home/b/sanitizer-x86_64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/test/dfsan/X86_64Config/Output/release_shadow_space.c.tmp
# .---command stderr------------
# | RSS at start: 5056, after mmap: 107456, after mmap+set label: 209860, after fixed map: 5060, after another mmap+set label: 209860, after munmap: 5060
# `-----------------------------
# RUN: at line 2
/home/b/sanitizer-x86_64-linux/build/build_default/./bin/clang  -fsanitize=dataflow  -m64  /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/dfsan/release_shadow_space.c -o /home/b/sanitizer-x86_64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/test/dfsan/X86_64Config/Output/release_shadow_space.c.tmp &&  /home/b/sanitizer-x86_64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/test/dfsan/X86_64Config/Output/release_shadow_space.c.tmp
# executed command: /home/b/sanitizer-x86_64-linux/build/build_default/./bin/clang -fsanitize=dataflow -m64 /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/dfsan/release_shadow_space.c -o /home/b/sanitizer-x86_64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/test/dfsan/X86_64Config/Output/release_shadow_space.c.tmp
# note: command had no output on stdout or stderr
# executed command: /home/b/sanitizer-x86_64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/test/dfsan/X86_64Config/Output/release_shadow_space.c.tmp
# .---command stderr------------
# | RSS at start: 5116, after mmap: 107516, after mmap+set label: 209920, after fixed map: 5120, after another mmap+set label: 209920, after munmap: 5120
# `-----------------------------
# RUN: at line 3
/home/b/sanitizer-x86_64-linux/build/build_default/./bin/clang  -fsanitize=dataflow  -m64  /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/dfsan/release_shadow_space.c -DORIGIN_TRACKING -mllvm -dfsan-track-origins=1 -o /home/b/sanitizer-x86_64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/test/dfsan/X86_64Config/Output/release_shadow_space.c.tmp &&  /home/b/sanitizer-x86_64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/test/dfsan/X86_64Config/Output/release_shadow_space.c.tmp
# executed command: /home/b/sanitizer-x86_64-linux/build/build_default/./bin/clang -fsanitize=dataflow -m64 /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/dfsan/release_shadow_space.c -DORIGIN_TRACKING -mllvm -dfsan-track-origins=1 -o /home/b/sanitizer-x86_64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/test/dfsan/X86_64Config/Output/release_shadow_space.c.tmp
# note: command had no output on stdout or stderr
# executed command: /home/b/sanitizer-x86_64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/test/dfsan/X86_64Config/Output/release_shadow_space.c.tmp
# .---command stderr------------
# | RSS at start: 5380, after mmap: 107780, after mmap+set label: 312628, after fixed map: 5428, after another mmap+set label: 312628, after munmap: 5428
# `-----------------------------
# RUN: at line 4
/home/b/sanitizer-x86_64-linux/build/build_default/./bin/clang  -fsanitize=dataflow  -m64  /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/dfsan/release_shadow_space.c -DORIGIN_TRACKING -mllvm -dfsan-track-origins=1 -o /home/b/sanitizer-x86_64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/test/dfsan/X86_64Config/Output/release_shadow_space.c.tmp &&  /home/b/sanitizer-x86_64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/test/dfsan/X86_64Config/Output/release_shadow_space.c.tmp
# executed command: /home/b/sanitizer-x86_64-linux/build/build_default/./bin/clang -fsanitize=dataflow -m64 /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/dfsan/release_shadow_space.c -DORIGIN_TRACKING -mllvm -dfsan-track-origins=1 -o /home/b/sanitizer-x86_64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/test/dfsan/X86_64Config/Output/release_shadow_space.c.tmp
# note: command had no output on stdout or stderr
# executed command: /home/b/sanitizer-x86_64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/test/dfsan/X86_64Config/Output/release_shadow_space.c.tmp
# .---command stderr------------
# | RSS at start: 5080, after mmap: 107464, after mmap+set label: 312312, after fixed map: 5112, after another mmap+set label: 312312, after munmap: 5112
# | release_shadow_space.c.tmp: /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/dfsan/release_shadow_space.c:91: int main(int, char **): Assertion `after_mmap >= before + mmap_cost_kb' failed.
# `-----------------------------
Step 9 (test compiler-rt symbolizer) failure: test compiler-rt symbolizer (failure)
...
-- Install configuration: "Release"
[418/424] Generating MSAN_INST_GTEST.gtest-all.cc.x86_64-with-call.o
[419/424] Generating MSAN_INST_GTEST.gtest-all.cc.x86_64.o
[420/424] Generating MSAN_INST_TEST_OBJECTS.msan_test.cpp.x86_64-with-call.o
[421/424] Generating Msan-x86_64-with-call-Test
[422/424] Generating MSAN_INST_TEST_OBJECTS.msan_test.cpp.x86_64.o
[423/424] Generating Msan-x86_64-Test
[423/424] Running compiler_rt regression tests
-- Testing: 11696 tests, 64 workers --
Testing:  0.. 10.. 20.. 30
FAIL: DataFlowSanitizer-x86_64 :: release_shadow_space.c (4041 of 11696)
******************** TEST 'DataFlowSanitizer-x86_64 :: release_shadow_space.c' FAILED ********************
Exit Code: -6

Command Output (stdout):
--
# RUN: at line 1
/home/b/sanitizer-x86_64-linux/build/build_default/./bin/clang  -fsanitize=dataflow  -m64  /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/dfsan/release_shadow_space.c -o /home/b/sanitizer-x86_64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/test/dfsan/X86_64Config/Output/release_shadow_space.c.tmp &&  /home/b/sanitizer-x86_64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/test/dfsan/X86_64Config/Output/release_shadow_space.c.tmp
# executed command: /home/b/sanitizer-x86_64-linux/build/build_default/./bin/clang -fsanitize=dataflow -m64 /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/dfsan/release_shadow_space.c -o /home/b/sanitizer-x86_64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/test/dfsan/X86_64Config/Output/release_shadow_space.c.tmp
# note: command had no output on stdout or stderr
# executed command: /home/b/sanitizer-x86_64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/test/dfsan/X86_64Config/Output/release_shadow_space.c.tmp
# .---command stderr------------
# | RSS at start: 5056, after mmap: 107456, after mmap+set label: 209860, after fixed map: 5060, after another mmap+set label: 209860, after munmap: 5060
# `-----------------------------
# RUN: at line 2
/home/b/sanitizer-x86_64-linux/build/build_default/./bin/clang  -fsanitize=dataflow  -m64  /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/dfsan/release_shadow_space.c -o /home/b/sanitizer-x86_64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/test/dfsan/X86_64Config/Output/release_shadow_space.c.tmp &&  /home/b/sanitizer-x86_64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/test/dfsan/X86_64Config/Output/release_shadow_space.c.tmp
# executed command: /home/b/sanitizer-x86_64-linux/build/build_default/./bin/clang -fsanitize=dataflow -m64 /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/dfsan/release_shadow_space.c -o /home/b/sanitizer-x86_64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/test/dfsan/X86_64Config/Output/release_shadow_space.c.tmp
# note: command had no output on stdout or stderr
# executed command: /home/b/sanitizer-x86_64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/test/dfsan/X86_64Config/Output/release_shadow_space.c.tmp
# .---command stderr------------
# | RSS at start: 5116, after mmap: 107516, after mmap+set label: 209920, after fixed map: 5120, after another mmap+set label: 209920, after munmap: 5120
# `-----------------------------
# RUN: at line 3
/home/b/sanitizer-x86_64-linux/build/build_default/./bin/clang  -fsanitize=dataflow  -m64  /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/dfsan/release_shadow_space.c -DORIGIN_TRACKING -mllvm -dfsan-track-origins=1 -o /home/b/sanitizer-x86_64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/test/dfsan/X86_64Config/Output/release_shadow_space.c.tmp &&  /home/b/sanitizer-x86_64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/test/dfsan/X86_64Config/Output/release_shadow_space.c.tmp
# executed command: /home/b/sanitizer-x86_64-linux/build/build_default/./bin/clang -fsanitize=dataflow -m64 /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/dfsan/release_shadow_space.c -DORIGIN_TRACKING -mllvm -dfsan-track-origins=1 -o /home/b/sanitizer-x86_64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/test/dfsan/X86_64Config/Output/release_shadow_space.c.tmp
# note: command had no output on stdout or stderr
# executed command: /home/b/sanitizer-x86_64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/test/dfsan/X86_64Config/Output/release_shadow_space.c.tmp
# .---command stderr------------
# | RSS at start: 5380, after mmap: 107780, after mmap+set label: 312628, after fixed map: 5428, after another mmap+set label: 312628, after munmap: 5428
# `-----------------------------
# RUN: at line 4
/home/b/sanitizer-x86_64-linux/build/build_default/./bin/clang  -fsanitize=dataflow  -m64  /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/dfsan/release_shadow_space.c -DORIGIN_TRACKING -mllvm -dfsan-track-origins=1 -o /home/b/sanitizer-x86_64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/test/dfsan/X86_64Config/Output/release_shadow_space.c.tmp &&  /home/b/sanitizer-x86_64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/test/dfsan/X86_64Config/Output/release_shadow_space.c.tmp
# executed command: /home/b/sanitizer-x86_64-linux/build/build_default/./bin/clang -fsanitize=dataflow -m64 /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/dfsan/release_shadow_space.c -DORIGIN_TRACKING -mllvm -dfsan-track-origins=1 -o /home/b/sanitizer-x86_64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/test/dfsan/X86_64Config/Output/release_shadow_space.c.tmp
# note: command had no output on stdout or stderr
# executed command: /home/b/sanitizer-x86_64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/test/dfsan/X86_64Config/Output/release_shadow_space.c.tmp
# .---command stderr------------
# | RSS at start: 5080, after mmap: 107464, after mmap+set label: 312312, after fixed map: 5112, after another mmap+set label: 312312, after munmap: 5112
# | release_shadow_space.c.tmp: /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/dfsan/release_shadow_space.c:91: int main(int, char **): Assertion `after_mmap >= before + mmap_cost_kb' failed.
# `-----------------------------

```

</details>

https://github.com/llvm/llvm-project/pull/169699