[clang] [clang-cl] [AST] Fix MS 1920+ placeholder return type mangling for lambdas (PR #105999)

LLVM Continuous Integration via cfe-commits cfe-commits at lists.llvm.org
Sun Aug 25 21:35:03 PDT 2024 

llvm-ci wrote:

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

Full details are available at: https://lab.llvm.org/buildbot/#/builders/66/builds/3102

<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)
...
[373/378] Generating MSAN_INST_GTEST.gtest-all.cc.x86_64.o
[374/378] Generating MSAN_INST_TEST_OBJECTS.msan_test.cpp.x86_64-with-call.o
[375/378] Generating Msan-x86_64-with-call-Test
[376/378] Generating MSAN_INST_TEST_OBJECTS.msan_test.cpp.x86_64.o
[377/378] Generating Msan-x86_64-Test
[377/378] Running compiler_rt regression tests
llvm-lit: /home/b/sanitizer-x86_64-linux/build/llvm-project/llvm/utils/lit/lit/discovery.py:276: warning: input '/home/b/sanitizer-x86_64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/test/rtsan/X86_64LinuxConfig' contained no tests
llvm-lit: /home/b/sanitizer-x86_64-linux/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: 10142 tests, 88 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60..
FAIL: SanitizerCommon-lsan-i386-Linux :: Linux/soft_rss_limit_mb_test.cpp (6989 of 10142)
******************** TEST 'SanitizerCommon-lsan-i386-Linux :: Linux/soft_rss_limit_mb_test.cpp' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
RUN: at line 2: /home/b/sanitizer-x86_64-linux/build/build_default/./bin/clang  --driver-mode=g++ -gline-tables-only -fsanitize=leak  -m32 -funwind-tables  -I/home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test -ldl -O2 /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/sanitizer_common/TestCases/Linux/soft_rss_limit_mb_test.cpp -o /home/b/sanitizer-x86_64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/test/sanitizer_common/lsan-i386-Linux/Linux/Output/soft_rss_limit_mb_test.cpp.tmp
+ /home/b/sanitizer-x86_64-linux/build/build_default/./bin/clang --driver-mode=g++ -gline-tables-only -fsanitize=leak -m32 -funwind-tables -I/home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test -ldl -O2 /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/sanitizer_common/TestCases/Linux/soft_rss_limit_mb_test.cpp -o /home/b/sanitizer-x86_64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/test/sanitizer_common/lsan-i386-Linux/Linux/Output/soft_rss_limit_mb_test.cpp.tmp
RUN: at line 5: env LSAN_OPTIONS=soft_rss_limit_mb=220:quarantine_size=1:allocator_may_return_null=1      /home/b/sanitizer-x86_64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/test/sanitizer_common/lsan-i386-Linux/Linux/Output/soft_rss_limit_mb_test.cpp.tmp 2>&1 | FileCheck /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/sanitizer_common/TestCases/Linux/soft_rss_limit_mb_test.cpp -check-prefix=CHECK_MAY_RETURN_1
+ env LSAN_OPTIONS=soft_rss_limit_mb=220:quarantine_size=1:allocator_may_return_null=1 /home/b/sanitizer-x86_64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/test/sanitizer_common/lsan-i386-Linux/Linux/Output/soft_rss_limit_mb_test.cpp.tmp
+ FileCheck /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/sanitizer_common/TestCases/Linux/soft_rss_limit_mb_test.cpp -check-prefix=CHECK_MAY_RETURN_1
/home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/sanitizer_common/TestCases/Linux/soft_rss_limit_mb_test.cpp:68:24: error: CHECK_MAY_RETURN_1: expected string not found in input
// CHECK_MAY_RETURN_1: allocating 512 times
                       ^
<stdin>:52:44: note: scanning from here
Some of the malloc calls returned non-null: 256
                                           ^
<stdin>:52:45: note: possible intended match here
Some of the malloc calls returned non-null: 256
                                            ^

Input file: <stdin>
Check file: /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/sanitizer_common/TestCases/Linux/soft_rss_limit_mb_test.cpp

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

Input was:
<<<<<<
            .
            .
            .
           47:  [256] 
           48:  [320] 
           49:  [384] 
           50:  [448] 
           51: Some of the malloc calls returned null: 256 
           52: Some of the malloc calls returned non-null: 256 
check:68'0                                                X~~~~ error: no match found
check:68'1                                                 ?    possible intended match
Step 14 (test compiler-rt default) failure: test compiler-rt default (failure)
...
[373/378] Generating MSAN_INST_GTEST.gtest-all.cc.x86_64.o
[374/378] Generating MSAN_INST_TEST_OBJECTS.msan_test.cpp.x86_64-with-call.o
[375/378] Generating Msan-x86_64-with-call-Test
[376/378] Generating MSAN_INST_TEST_OBJECTS.msan_test.cpp.x86_64.o
[377/378] Generating Msan-x86_64-Test
[377/378] Running compiler_rt regression tests
llvm-lit: /home/b/sanitizer-x86_64-linux/build/llvm-project/llvm/utils/lit/lit/discovery.py:276: warning: input '/home/b/sanitizer-x86_64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/test/rtsan/X86_64LinuxConfig' contained no tests
llvm-lit: /home/b/sanitizer-x86_64-linux/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: 10142 tests, 88 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60..
FAIL: SanitizerCommon-lsan-i386-Linux :: Linux/soft_rss_limit_mb_test.cpp (6989 of 10142)
******************** TEST 'SanitizerCommon-lsan-i386-Linux :: Linux/soft_rss_limit_mb_test.cpp' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
RUN: at line 2: /home/b/sanitizer-x86_64-linux/build/build_default/./bin/clang  --driver-mode=g++ -gline-tables-only -fsanitize=leak  -m32 -funwind-tables  -I/home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test -ldl -O2 /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/sanitizer_common/TestCases/Linux/soft_rss_limit_mb_test.cpp -o /home/b/sanitizer-x86_64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/test/sanitizer_common/lsan-i386-Linux/Linux/Output/soft_rss_limit_mb_test.cpp.tmp
+ /home/b/sanitizer-x86_64-linux/build/build_default/./bin/clang --driver-mode=g++ -gline-tables-only -fsanitize=leak -m32 -funwind-tables -I/home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test -ldl -O2 /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/sanitizer_common/TestCases/Linux/soft_rss_limit_mb_test.cpp -o /home/b/sanitizer-x86_64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/test/sanitizer_common/lsan-i386-Linux/Linux/Output/soft_rss_limit_mb_test.cpp.tmp
RUN: at line 5: env LSAN_OPTIONS=soft_rss_limit_mb=220:quarantine_size=1:allocator_may_return_null=1      /home/b/sanitizer-x86_64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/test/sanitizer_common/lsan-i386-Linux/Linux/Output/soft_rss_limit_mb_test.cpp.tmp 2>&1 | FileCheck /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/sanitizer_common/TestCases/Linux/soft_rss_limit_mb_test.cpp -check-prefix=CHECK_MAY_RETURN_1
+ env LSAN_OPTIONS=soft_rss_limit_mb=220:quarantine_size=1:allocator_may_return_null=1 /home/b/sanitizer-x86_64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/test/sanitizer_common/lsan-i386-Linux/Linux/Output/soft_rss_limit_mb_test.cpp.tmp
+ FileCheck /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/sanitizer_common/TestCases/Linux/soft_rss_limit_mb_test.cpp -check-prefix=CHECK_MAY_RETURN_1
/home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/sanitizer_common/TestCases/Linux/soft_rss_limit_mb_test.cpp:68:24: error: CHECK_MAY_RETURN_1: expected string not found in input
// CHECK_MAY_RETURN_1: allocating 512 times
                       ^
<stdin>:52:44: note: scanning from here
Some of the malloc calls returned non-null: 256
                                           ^
<stdin>:52:45: note: possible intended match here
Some of the malloc calls returned non-null: 256
                                            ^

Input file: <stdin>
Check file: /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/sanitizer_common/TestCases/Linux/soft_rss_limit_mb_test.cpp

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

Input was:
<<<<<<
            .
            .
            .
           47:  [256] 
           48:  [320] 
           49:  [384] 
           50:  [448] 
           51: Some of the malloc calls returned null: 256 
           52: Some of the malloc calls returned non-null: 256 
check:68'0                                                X~~~~ error: no match found
check:68'1                                                 ?    possible intended match

```

</details>

https://github.com/llvm/llvm-project/pull/105999

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