clang14/mips crashes compiling qtlocations package on linux

[kraj]

Attached testcase crashes the compiler when using -O2 or -Ofast, it works ok with -O1, -Os

fatal error: error in backend: Cannot select: 0x559a37f85fe0: f64 = fabs nnan ninf nsz arcp contract afn reassoc 0x559a384adf98, git/src/3rdparty/clipper/clipper.cpp:3974:7
  0x559a384adf98: f64,ch = CopyFromReg 0x559a369e5068, Register:f64 %323, git/src/3rdparty/clipper/clipper.cpp:3974:7
    0x559a37f85ea8: f64 = Register %323
In function: _ZN12QtClipperLib13ClipperOffset8DoOffsetEd

clipper-c6fc58.tar.gz

[EugeneZelenko]

Could you please provide full message? Is it compiler or linker crash?

[kraj]

Could you please provide full message? Is it compiler or linker crash?

its compiler crash, the script to reproduce it and sample testcase it in tarball.

[atanasyan]

Duplicate of #53722.

[llvmbot]

@llvm/issue-subscribers-backend-mips