[llvm-bugs] [Bug 34502] New: Regalloc assert fails: Unexpected VNI
llvm-bugs at lists.llvm.org
Wed Sep 6 06:24:11 PDT 2017
Bug ID: 34502
Summary: Regalloc assert fails: Unexpected VNI
Component: Register Allocator
Assignee: unassignedbugs at nondot.org
Reporter: paulsson at linux.vnet.ibm.com
CC: llvm-bugs at lists.llvm.org
Created attachment 19112
This is actually a bug that may have kept the SystemZ build bots red for some
time now, but due to vacations this has not been reported yet. So this is quite
I have done a git bisect, and found that it seems that commit 463fa38
(trunk at 311401) is the cause for this.
The attached reduced test case fails with that commit, but compiles if it's
bin/llc -mcpu=z13 -O3 hoistspills_crash.ll
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