[Bug]: NDK r29: hangs forever when compiling file with `-O3` on arm

[licy183]

Description

Compiling the following file with the following command will make clang hang forever.

~/lib/android-ndk-r29/toolchains/llvm/prebuilt/linux-x86_64/bin/armv7a-linux-androideabi24-clang -DMLIB_HAVE_STRINGS_H -DMLIB_USER -march=armv7-a -mfpu=neon -mfloat-abi=softfp -mthumb -fstack-protector-strong -O3 -DNDEBUG -std=gnu99 -fPIE -Werror=implicit -Werror=return-type -Werror=incompatible-pointer-types -Werror=int-conversion -Werror=ignored-qualifiers -Werror=uninitialized -o path.test.c.o -c path.test.c

path.test.c.zip

Upstream bug

No response

Commit to cherry-pick

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I am using a supported NDK

• I have checked and the NDK I'm using is currently supported

Affected versions

r29

Host OS

Linux

Host OS version

Ubuntu 24.04.3

Affected ABIs

armeabi-v7a