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* [Bug tree-optimization/36181] New: Simple for loop generates ICE with -ftree-parallelize-loops=2 @ 2008-05-08 17:04 runeerle at stud dot ntnu dot no 2008-05-09 9:11 ` [Bug tree-optimization/36181] " rguenth at gcc dot gnu dot org ` (3 more replies) 0 siblings, 4 replies; 5+ messages in thread From: runeerle at stud dot ntnu dot no @ 2008-05-08 17:04 UTC (permalink / raw) To: gcc-bugs [-- Warning: decoded text below may be mangled, UTF-8 assumed --] [-- Attachment #1: Type: text/plain, Size: 2296 bytes --] This simple test case fails: -------------------------- #include <stdio.h> int main(int argc, const char* argv[]) { int data[1024]; int sum = 0; int i = 0; for(; i<1024; i++) sum += data[i]; printf("%d", sum); return 0; } -------------------------- Options and output: $ gcc-4.3 -O3 -ftree-parallelize-loops=2 main2.c -v Using built-in specs. Target: x86_64-linux-gnu Configured with: ../src/configure linux gnu Thread model: posix gcc version 4.3.0 (Ubuntu 4.3.0-1ubuntu1) COLLECT_GCC_OPTIONS='-O3' '-ftree-parallelize-loops=2' '-v' '-mtune=generic' '-pthread' /usr/lib/gcc/x86_64-linux-gnu/4.3.0/cc1 -quiet -v -D_REENTRANT main2.c -quiet -dumpbase main2.c -mtune=generic -auxbase main2 -O3 -version -ftree-parallelize-loops=2 -fstack-protector -fstack-protector -o /tmp/cclHEQpb.s ignoring nonexistent directory "/usr/local/include/x86_64-linux-gnu" ignoring nonexistent directory "/usr/lib/gcc/x86_64-linux-gnu/4.3.0/../../../../x86_64-linux-gnu/include" ignoring nonexistent directory "/usr/include/x86_64-linux-gnu" #include "..." search starts here: #include <...> search starts here: /usr/local/include /usr/lib/gcc/x86_64-linux-gnu/4.3.0/include /usr/lib/gcc/x86_64-linux-gnu/4.3.0/include-fixed /usr/include End of search list. GNU C (Ubuntu 4.3.0-1ubuntu1) version 4.3.0 (x86_64-linux-gnu) compiled by GNU C version 4.3.0, GMP version 4.2.2, MPFR version 2.3.1. GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072 Compiler executable checksum: 1cbb7f16ebc5c81a75d8a2ed8f02da6b main2.c: In function main: main2.c:4: internal compiler error: in canonicalize_loop_ivs, at tree-parloops.c:1329 Please submit a full bug report, with preprocessed source if appropriate. -- Summary: Simple for loop generates ICE with -ftree-parallelize- loops=2 Product: gcc Version: 4.3.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: runeerle at stud dot ntnu dot no GCC host triplet: x86_64-linux-gnu GCC target triplet: x86_64-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36181 ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug tree-optimization/36181] Simple for loop generates ICE with -ftree-parallelize-loops=2 2008-05-08 17:04 [Bug tree-optimization/36181] New: Simple for loop generates ICE with -ftree-parallelize-loops=2 runeerle at stud dot ntnu dot no @ 2008-05-09 9:11 ` rguenth at gcc dot gnu dot org 2008-05-20 19:18 ` spop at gcc dot gnu dot org ` (2 subsequent siblings) 3 siblings, 0 replies; 5+ messages in thread From: rguenth at gcc dot gnu dot org @ 2008-05-09 9:11 UTC (permalink / raw) To: gcc-bugs ------- Comment #1 from rguenth at gcc dot gnu dot org 2008-05-09 09:10 ------- The integer vector operation (gdb) call debug_generic_expr (phi) vect_var_.32_20 = PHI <vect_var_.32_21(4), { 0, 0, 0, 0 }(9)> is not considered a simple iv. -- rguenth at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |rakdver at gcc dot gnu dot | |org Status|UNCONFIRMED |NEW Ever Confirmed|0 |1 Keywords| |ice-on-valid-code Known to fail| |4.3.0 4.4.0 Last reconfirmed|0000-00-00 00:00:00 |2008-05-09 09:10:34 date| | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36181 ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug tree-optimization/36181] Simple for loop generates ICE with -ftree-parallelize-loops=2 2008-05-08 17:04 [Bug tree-optimization/36181] New: Simple for loop generates ICE with -ftree-parallelize-loops=2 runeerle at stud dot ntnu dot no 2008-05-09 9:11 ` [Bug tree-optimization/36181] " rguenth at gcc dot gnu dot org @ 2008-05-20 19:18 ` spop at gcc dot gnu dot org 2008-05-20 19:24 ` spop at gcc dot gnu dot org 2008-05-21 15:58 ` spop at gcc dot gnu dot org 3 siblings, 0 replies; 5+ messages in thread From: spop at gcc dot gnu dot org @ 2008-05-20 19:18 UTC (permalink / raw) To: gcc-bugs ------- Comment #2 from spop at gcc dot gnu dot org 2008-05-20 19:17 ------- Subject: Bug 36181 Author: spop Date: Tue May 20 19:17:12 2008 New Revision: 135673 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=135673 Log: 2008-05-20 Sebastian Pop <sebastian.pop@amd.com> Jan Sjodin <jan.sjodin@amd.com> PR tree-optimization/36181 * tree-parloops.c (loop_has_vector_phi_nodes): New. (parallelize_loops): Don't parallelize when the loop has vector phi nodes. * gcc.dg/tree-ssa/pr36181.c: New. Added: trunk/gcc/testsuite/gcc.dg/tree-ssa/pr36181.c Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-parloops.c -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36181 ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug tree-optimization/36181] Simple for loop generates ICE with -ftree-parallelize-loops=2 2008-05-08 17:04 [Bug tree-optimization/36181] New: Simple for loop generates ICE with -ftree-parallelize-loops=2 runeerle at stud dot ntnu dot no 2008-05-09 9:11 ` [Bug tree-optimization/36181] " rguenth at gcc dot gnu dot org 2008-05-20 19:18 ` spop at gcc dot gnu dot org @ 2008-05-20 19:24 ` spop at gcc dot gnu dot org 2008-05-21 15:58 ` spop at gcc dot gnu dot org 3 siblings, 0 replies; 5+ messages in thread From: spop at gcc dot gnu dot org @ 2008-05-20 19:24 UTC (permalink / raw) To: gcc-bugs ------- Comment #3 from spop at gcc dot gnu dot org 2008-05-20 19:23 ------- Fixed. -- spop at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution| |FIXED http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36181 ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug tree-optimization/36181] Simple for loop generates ICE with -ftree-parallelize-loops=2 2008-05-08 17:04 [Bug tree-optimization/36181] New: Simple for loop generates ICE with -ftree-parallelize-loops=2 runeerle at stud dot ntnu dot no ` (2 preceding siblings ...) 2008-05-20 19:24 ` spop at gcc dot gnu dot org @ 2008-05-21 15:58 ` spop at gcc dot gnu dot org 3 siblings, 0 replies; 5+ messages in thread From: spop at gcc dot gnu dot org @ 2008-05-21 15:58 UTC (permalink / raw) To: gcc-bugs ------- Comment #4 from spop at gcc dot gnu dot org 2008-05-21 15:57 ------- Subject: Bug 36181 Author: spop Date: Wed May 21 15:56:57 2008 New Revision: 135722 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=135722 Log: 2008-05-15 Sebastian Pop <sebastian.pop@amd.com> Jan Sjodin <jan.sjodin@amd.com> PR tree-optimization/36181 Backport from mainline: * tree-parloops.c (loop_has_vector_phi_nodes): New. (parallelize_loops): Don't parallelize when the loop has vector phi nodes. * gcc.dg/tree-ssa/pr36181.c: New. Added: branches/gcc-4_3-branch/gcc/testsuite/gcc.dg/tree-ssa/pr36181.c Modified: branches/gcc-4_3-branch/gcc/ChangeLog branches/gcc-4_3-branch/gcc/testsuite/ChangeLog branches/gcc-4_3-branch/gcc/tree-parloops.c -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36181 ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2008-05-21 15:58 UTC | newest] Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2008-05-08 17:04 [Bug tree-optimization/36181] New: Simple for loop generates ICE with -ftree-parallelize-loops=2 runeerle at stud dot ntnu dot no 2008-05-09 9:11 ` [Bug tree-optimization/36181] " rguenth at gcc dot gnu dot org 2008-05-20 19:18 ` spop at gcc dot gnu dot org 2008-05-20 19:24 ` spop at gcc dot gnu dot org 2008-05-21 15:58 ` spop at gcc dot gnu dot org
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