We currently don't handle tail calls in fast-isel but we continue with the lowering when -mlongcall is specified and lower the calls normally. We should defer to SDISel for this so that it is lowered correctly.
- Group Reviewers
- rG56e41fcf5028: [PowerPC] Bail out of FISel when lowering long calls
The unit test failure should be unrelated. A change in code generation for PowerPC should not cause a sanitizer failure on X86.