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* optimization/10196: [3.3 regression] Compile time regression with inlining
@ 2003-03-23 22:56 rguenth
0 siblings, 0 replies; only message in thread
From: rguenth @ 2003-03-23 22:56 UTC (permalink / raw)
To: gcc-gnats
>Number: 10196
>Category: optimization
>Synopsis: [3.3 regression] Compile time regression with inlining
>Confidential: no
>Severity: critical
>Priority: medium
>Responsible: unassigned
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Sun Mar 23 22:16:00 UTC 2003
>Closed-Date:
>Last-Modified:
>Originator: POOMA library
>Release: g++-3.3 (GCC) 3.3 20030318 (prerelease)
>Organization:
>Environment:
ix86 linux
>Description:
The testcase at
http://www.tat.physik.uni-tuebingen.de/~rguenth/DynamicLayout2.ii.gz
experiences dramatically slowdown in compile-time compared from the 3.2 release. This is fixed with either specifying -fno-default-inline or --param max-inline-insns-single=200.
The problem was discussed on gcc list in this thread:
http://gcc.gnu.org/ml/gcc/2003-03/msg01174.html
>How-To-Repeat:
compile the testcase with optimization that turns inlining on (-O2).
>Fix:
Can be workarounded by limiting inlining.
>Release-Note:
>Audit-Trail:
>Unformatted:
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2003-03-23 22:56 optimization/10196: [3.3 regression] Compile time regression with inlining rguenth
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