[llvm-bugs] [Bug 35618] New: Instcombine hangs because of '[InstCombine] PR35354: Convert store...' (r320157)
llvm-bugs at lists.llvm.org
Mon Dec 11 02:14:20 PST 2017
Bug ID: 35618
Summary: Instcombine hangs because of '[InstCombine] PR35354:
Convert store...' (r320157)
Component: Scalar Optimizations
Assignee: unassignedbugs at nondot.org
Reporter: paulsson at linux.vnet.ibm.com
CC: llvm-bugs at lists.llvm.org
Created attachment 19534
While building SystemZ benchmarks (SPEC), I discovered that one clang process
got stuck which I bisected to r320157. When I reverted it locally, things
worked again as normal.
Attached reduced test case, run with
bin/opt -mtriple=s390x-ibm-linux -S -mcpu=z13 -O3 tc_instcomb_hang.ll
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