| Bug ID | 94445 |
|---|---|
| Summary | Tonga llvm assert since RegisterCoalescer: Need to check DstReg+SrcReg for missing undef flags |
| Product | Mesa |
| Version | git |
| Hardware | x86-64 (AMD64) |
| OS | Linux (All) |
| Status | NEW |
| Severity | normal |
| Priority | medium |
| Component | Drivers/Gallium/radeonsi |
| Assignee | dri-devel@lists.freedesktop.org |
| Reporter | adf.lists@gmail.com |
| QA Contact | dri-devel@lists.freedesktop.org |
R9285 since llvm commit commit 817178adc78bbd36ba635d3147cca53070558def Author: Matthias Braun <matze@braunis.de> Date: Sat Mar 5 04:36:10 2016 +0000 RegisterCoalescer: Need to check DstReg+SrcReg for missing undef flags copy coalescing with enabled subregister liveness can reveal undef uses, previously this was only checked for the SrcReg in updateRegDefsUses() but we need to check DstReg as well. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@262767 91177308-0d34-0410-b5e6-96231b3b80d8 Unigine Valley will assert at start of rendering. valley_x64: /mnt/sdb1/Gits/llvm/lib/CodeGen/MachineScheduler.cpp:1046: void llvm::ScheduleDAGMILive::updatePressureDiffs(llvm::ArrayRef<llvm::RegisterMaskPair>): Assertion `VNI && "No live value at use."' failed. Other demos don't trigger this. Valley is running 1920x1080 fullscreen ultra quality + 8x AA.
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