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List: gcc-bugs
Subject: [Bug rtl-optimization/79405] [7 Regression] Compile-time hog w/ -O2 (-Os, -O3) on 32-bit BE powerpc
From: "law at gcc dot gnu.org" <gcc-bugzilla () gcc ! gnu ! org>
Date: 2017-03-31 22:50:25
Message-ID: bug-79405-4-LmrlJS2Cx9 () http ! gcc ! gnu ! org/bugzilla/
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79405
--- Comment #8 from Jeffrey A. Law <law at gcc dot gnu.org> ---
Author: law
Date: Fri Mar 31 22:49:53 2017
New Revision: 246627
URL: https://gcc.gnu.org/viewcvs?rev=246627&root=gcc&view=rev
Log:
PR rtl-optimization/79405
* fwprop.c (propagations_left): New variable.
(forward_propagate_into): Decrement it.
(fwprop_init): Initialize it.
(fw_prop): If the variable has reached zero, stop propagating.
(fwprop_addr): Ditto.
gcc/testsuite/
PR rtl-optimization/79405
gcc.dg/pr79405.c: New testcase.
Added:
trunk/gcc/testsuite/gcc.dg/pr79405.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/fwprop.c
trunk/gcc/testsuite/ChangeLog=
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