[clang] [clang] Make reduce-clang-crash.py also reduce middleend/backend crashes (PR #199453)

[via cfe-commits]

github-actions[bot] wrote:

<!--PREMERGE ADVISOR COMMENT: Linux-->
# :penguin: Linux x64 Test Results

* 88174 tests passed
* 1637 tests skipped
* 2 tests failed

## Failed Tests
(click on a test name to see its output)

### Clang
<details>
<summary>Clang.Driver/reduce-clang-crash-backend.c</summary>

```
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 2
rm -rf /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/test/Driver/Output/reduce-clang-crash-backend.c.tmp
# executed command: rm -rf /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/test/Driver/Output/reduce-clang-crash-backend.c.tmp
# note: command had no output on stdout or stderr
# RUN: at line 3
mkdir -p /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/test/Driver/Output/reduce-clang-crash-backend.c.tmp
# executed command: mkdir -p /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/test/Driver/Output/reduce-clang-crash-backend.c.tmp
# note: command had no output on stdout or stderr
# RUN: at line 4
cp /home/gha/actions-runner/_work/llvm-project/llvm-project/clang/test/Driver/reduce-clang-crash-backend.c /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/test/Driver/Output/reduce-clang-crash-backend.c.tmp/test.c
# executed command: cp /home/gha/actions-runner/_work/llvm-project/llvm-project/clang/test/Driver/reduce-clang-crash-backend.c /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/test/Driver/Output/reduce-clang-crash-backend.c.tmp/test.c
# note: command had no output on stdout or stderr
# RUN: at line 6
echo "/home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/clang -target x86_64-unknown-linux-gnu -O2 -mllvm -codegen-pipeline-trigger-crash -mllvm=-enable-scalar-pre -c /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/test/Driver/Output/reduce-clang-crash-backend.c.tmp/test.c" > /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/test/Driver/Output/reduce-clang-crash-backend.c.tmp/crash.sh
# executed command: echo '/home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/clang -target x86_64-unknown-linux-gnu -O2 -mllvm -codegen-pipeline-trigger-crash -mllvm=-enable-scalar-pre -c /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/test/Driver/Output/reduce-clang-crash-backend.c.tmp/test.c'
# note: command had no output on stdout or stderr
# RUN: at line 8
"/usr/bin/python3" /home/gha/actions-runner/_work/llvm-project/llvm-project/clang/test/Driver/../../utils/reduce-clang-crash.py /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/test/Driver/Output/reduce-clang-crash-backend.c.tmp/crash.sh /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/test/Driver/Output/reduce-clang-crash-backend.c.tmp/test.c --clang /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/clang --llvm-reduce-flag=--delta-passes=functions -v
# executed command: /usr/bin/python3 /home/gha/actions-runner/_work/llvm-project/llvm-project/clang/test/Driver/../../utils/reduce-clang-crash.py /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/test/Driver/Output/reduce-clang-crash-backend.c.tmp/crash.sh /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/test/Driver/Output/reduce-clang-crash-backend.c.tmp/test.c --clang /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/clang --llvm-reduce-flag=--delta-passes=functions -v
# .---command stderr------------
# | ERROR: `creduce` not found in $PATH
# `-----------------------------
# error: command failed with exit status: 1

--

```
</details>
<details>
<summary>Clang.Driver/reduce-clang-crash-middleend.c</summary>

```
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 2
rm -rf /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/test/Driver/Output/reduce-clang-crash-middleend.c.tmp
# executed command: rm -rf /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/test/Driver/Output/reduce-clang-crash-middleend.c.tmp
# note: command had no output on stdout or stderr
# RUN: at line 3
mkdir -p /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/test/Driver/Output/reduce-clang-crash-middleend.c.tmp
# executed command: mkdir -p /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/test/Driver/Output/reduce-clang-crash-middleend.c.tmp
# note: command had no output on stdout or stderr
# RUN: at line 4
cp /home/gha/actions-runner/_work/llvm-project/llvm-project/clang/test/Driver/reduce-clang-crash-middleend.c /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/test/Driver/Output/reduce-clang-crash-middleend.c.tmp/test.c
# executed command: cp /home/gha/actions-runner/_work/llvm-project/llvm-project/clang/test/Driver/reduce-clang-crash-middleend.c /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/test/Driver/Output/reduce-clang-crash-middleend.c.tmp/test.c
# note: command had no output on stdout or stderr
# RUN: at line 6
echo "/home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/clang -target x86_64-unknown-linux-gnu -O2 -mllvm -opt-pipeline-trigger-crash -mllvm=-enable-scalar-pre -c /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/test/Driver/Output/reduce-clang-crash-middleend.c.tmp/test.c" > /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/test/Driver/Output/reduce-clang-crash-middleend.c.tmp/crash.sh
# executed command: echo '/home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/clang -target x86_64-unknown-linux-gnu -O2 -mllvm -opt-pipeline-trigger-crash -mllvm=-enable-scalar-pre -c /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/test/Driver/Output/reduce-clang-crash-middleend.c.tmp/test.c'
# note: command had no output on stdout or stderr
# RUN: at line 8
"/usr/bin/python3" /home/gha/actions-runner/_work/llvm-project/llvm-project/clang/test/Driver/../../utils/reduce-clang-crash.py /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/test/Driver/Output/reduce-clang-crash-middleend.c.tmp/crash.sh /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/test/Driver/Output/reduce-clang-crash-middleend.c.tmp/test.c --clang /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/clang --llvm-reduce-flag=--delta-passes=functions -v
# executed command: /usr/bin/python3 /home/gha/actions-runner/_work/llvm-project/llvm-project/clang/test/Driver/../../utils/reduce-clang-crash.py /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/test/Driver/Output/reduce-clang-crash-middleend.c.tmp/crash.sh /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/test/Driver/Output/reduce-clang-crash-middleend.c.tmp/test.c --clang /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/clang --llvm-reduce-flag=--delta-passes=functions -v
# .---command stderr------------
# | ERROR: `creduce` not found in $PATH
# `-----------------------------
# error: command failed with exit status: 1

--

```
</details>

If these failures are unrelated to your changes (for example tests are broken or flaky at HEAD), please open an issue at https://github.com/llvm/llvm-project/issues and add the `infrastructure` label.

https://github.com/llvm/llvm-project/pull/199453