(In reply to Aaron Puchert from comment #10) > (In reply to Fabian Vogt from comment #9) > > So the missing "instcombine" pass causes the "Cannot select" error and the > > pass is missing > > because Mesa passes an invalid list of passes to LLVMRunPasses and ignores > > the error. > > Would it be possible to improve error handling here? At least some tracing > would be nice. From your analysis it looks like this might affect more > platforms and not just armv7, and we wouldn't have noticed anything were it > not for the backend bug.
Correct. The code is unfortunately not ready for handling errors (even logging isn't really possible FWICT), so all I could do is ask for some ideas on the MR. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to mesa in Ubuntu. https://bugs.launchpad.net/bugs/1993800 Title: LLVM ERROR: Cannot select: 0x2f689c8: v4i32 = ARMISD::VCMPZ 0x2f696b8, Constant:i32<2> Status in LLVM: New Status in llvm-toolchain-15 package in Ubuntu: Confirmed Status in mesa package in Ubuntu: Confirmed Status in llvm-toolchain-15 package in openSUSE: Unknown Bug description: LLVM ERROR: Cannot select: 0x2f689c8: v4i32 = ARMISD::VCMPZ 0x2f696b8, Constant:i32<2> 0x2f696b8: v4i32,ch = ARMISD::VLD1DUP<(load (s32) from %ir.212)> 0x2aad434, 0x2f84090:1, Constant:i32<4> 0x2f84090: i32,i32,ch = load<(load (s32) from %ir.209, align 8), <post-inc>> 0x2aad434, 0x2f63a30, Constant:i32<64> 0x2f63a30: i32,ch = CopyFromReg 0x2aad434, Register:i32 %23 0x2f51c10: i32 = Register %23 0x2f82500: i32 = Constant<64> 0x2f81b28: i32 = Constant<4> 0x2f81e40: i32 = Constant<2> In function: fs_variant_partial [https://launchpadlibrarian.net/629171689/buildlog_ubuntu-kinetic- armhf.mutter_43.0-1ubuntu3_BUILDING.txt.gz] Although "LLVM ERROR: Cannot select" seems to be from LLVM, I can't determine what project "fs_variant_partial" is in. Sounds like it might be in some old version of Mesa? The start of the log suggests it's running on focal. To manage notifications about this bug go to: https://bugs.launchpad.net/llvm/+bug/1993800/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
