[llvm-bugs] [Bug 30257] New: Nary Reassociate pass takes too long on simple programs
via llvm-bugs
llvm-bugs at lists.llvm.org
Fri Sep 2 07:22:53 PDT 2016
https://llvm.org/bugs/show_bug.cgi?id=30257
Bug ID: 30257
Summary: Nary Reassociate pass takes too long on simple
programs
Product: libraries
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: Scalar Optimizations
Assignee: unassignedbugs at nondot.org
Reporter: tstellar at gmail.com
CC: llvm-bugs at lists.llvm.org
Classification: Unclassified
Created attachment 17209
--> https://llvm.org/bugs/attachment.cgi?id=17209&action=edit
Reduced Tetst Case
The reduced tests cases is from the same larger test case as
https://llvm.org/bugs/show_bug.cgi?id=28721. I suspect they have the same root
cause.
To reproduce:
opt -nary-reassociate -mtriple=amdgcn--amdhsa -mcpu=fiji -debug-pass=Executions
nary-reassociate-long-compile.ll -o - -S
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