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[JumpThreading] compilation hang with -jump-threading-across-loop-headers #43226

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[JumpThreading] compilation hang with -jump-threading-across-loop-headers#43226
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backend:SystemZbugzillaIssues migrated from bugzillahangCompiler hang (infinite loop)
@JonPsson

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@JonPsson
JonPsson
opened on Nov 2, 2019
Bugzilla Link 43881
Version trunk
OS Linux
Attachments reduced testcase
CC @JonPsson

Extended Description

clang -cc1 -triple s390x-ibm-linux -S -O3 -w -mllvm -jump-threading-across-loop-headers -o - -x ir tc_jumphtreadloopheaders.bc -emit-llvm

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    backend:SystemZbugzillaIssues migrated from bugzillahangCompiler hang (infinite loop)

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