[Bug rtl-optimization/47992] ICE: SIGSEGV in ira_reuse_stack_slot (ira-color.c:2887) with -fweb
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=47992 --- Comment #10 from Alan Modra --- Author: amodra Date: Tue Mar 15 22:05:22 2016 New Revision: 234237 URL: https://gcc.gnu.org/viewcvs?rev=234237=gcc=rev Log: Fix thinko in indirect_jump_optimize PR rtl-optimization/69195 PR rtl-optimization/47992 * ira.c (indirect_jump_optimize): Ignore artificial defs. Add comments. Modified: branches/gcc-4_9-branch/gcc/ChangeLog branches/gcc-4_9-branch/gcc/ira.c
[Bug rtl-optimization/47992] ICE: SIGSEGV in ira_reuse_stack_slot (ira-color.c:2887) with -fweb
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=47992 --- Comment #9 from Alan Modra --- Author: amodra Date: Tue Mar 15 22:04:54 2016 New Revision: 234236 URL: https://gcc.gnu.org/viewcvs?rev=234236=gcc=rev Log: Fix thinko in indirect_jump_optimize PR rtl-optimization/69195 PR rtl-optimization/47992 * ira.c (indirect_jump_optimize): Ignore artificial defs. Add comments. Modified: branches/gcc-5-branch/gcc/ChangeLog branches/gcc-5-branch/gcc/ira.c
[Bug rtl-optimization/47992] ICE: SIGSEGV in ira_reuse_stack_slot (ira-color.c:2887) with -fweb
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=47992 --- Comment #8 from Alan Modra --- Author: amodra Date: Tue Mar 15 22:04:42 2016 New Revision: 234235 URL: https://gcc.gnu.org/viewcvs?rev=234235=gcc=rev Log: Fix thinko in indirect_jump_optimize PR rtl-optimization/69195 PR rtl-optimization/47992 * ira.c (indirect_jump_optimize): Ignore artificial defs. Add comments. Modified: trunk/gcc/ChangeLog trunk/gcc/ira.c
[Bug rtl-optimization/47992] ICE: SIGSEGV in ira_reuse_stack_slot (ira-color.c:2887) with -fweb
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=47992 --- Comment #7 from Alan Modra --- Author: amodra Date: Thu Mar 10 10:48:58 2016 New Revision: 234103 URL: https://gcc.gnu.org/viewcvs?rev=234103=gcc=rev Log: PR69195, Reload confused by invalid reg_equiv Optimizing indirect jumps to direct jumps, and deleting dead insns can lead to changes in register lifetimes, which in turn can result in bad reg_equiv info being passed to reload. So do these tasks before calculating reg_equiv info. gcc/ PR rtl-optimization/69195 PR rtl-optimization/47992 * ira.c (recorded_label_ref): Delete. (update_equiv_regs): Return void. (indirect_jump_optimize): New function. (ira): Call indirect_jump_optimize and delete_trivially_dead_insns before regstat_compute_ri. Don't rebuild_jump_labels here. gcc/testsuite/ * gcc.dg/pr69195.c: New. * gcc.dg/pr69238.c: New. Added: branches/gcc-4_9-branch/gcc/testsuite/gcc.dg/pr69195.c branches/gcc-4_9-branch/gcc/testsuite/gcc.dg/pr69238.c Modified: branches/gcc-4_9-branch/gcc/ChangeLog branches/gcc-4_9-branch/gcc/ira.c branches/gcc-4_9-branch/gcc/testsuite/ChangeLog
[Bug rtl-optimization/47992] ICE: SIGSEGV in ira_reuse_stack_slot (ira-color.c:2887) with -fweb
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=47992 --- Comment #6 from Alan Modra --- Author: amodra Date: Thu Mar 10 10:48:14 2016 New Revision: 234102 URL: https://gcc.gnu.org/viewcvs?rev=234102=gcc=rev Log: PR69195, Reload confused by invalid reg_equiv Optimizing indirect jumps to direct jumps, and deleting dead insns can lead to changes in register lifetimes, which in turn can result in bad reg_equiv info being passed to reload. So do these tasks before calculating reg_equiv info. gcc/ PR rtl-optimization/69195 PR rtl-optimization/47992 * ira.c (recorded_label_ref): Delete. (update_equiv_regs): Return void. (indirect_jump_optimize): New function. (ira): Call indirect_jump_optimize and delete_trivially_dead_insns before regstat_compute_ri. Don't rebuild_jump_labels here. gcc/testsuite/ * gcc.dg/pr69195.c: New. * gcc.dg/pr69238.c: New. Added: branches/gcc-5-branch/gcc/testsuite/gcc.dg/pr69195.c branches/gcc-5-branch/gcc/testsuite/gcc.dg/pr69238.c Modified: branches/gcc-5-branch/gcc/ChangeLog branches/gcc-5-branch/gcc/ira.c branches/gcc-5-branch/gcc/testsuite/ChangeLog
[Bug rtl-optimization/47992] ICE: SIGSEGV in ira_reuse_stack_slot (ira-color.c:2887) with -fweb
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=47992 --- Comment #5 from Alan Modra --- Author: amodra Date: Thu Mar 10 10:47:13 2016 New Revision: 234101 URL: https://gcc.gnu.org/viewcvs?rev=234101=gcc=rev Log: PR69195, Reload confused by invalid reg_equiv Optimizing indirect jumps to direct jumps, and deleting dead insns can lead to changes in register lifetimes, which in turn can result in bad reg_equiv info being passed to reload. So do these tasks before calculating reg_equiv info. gcc/ PR rtl-optimization/69195 PR rtl-optimization/47992 * ira.c (recorded_label_ref): Delete. (update_equiv_regs): Return void. (indirect_jump_optimize): New function. (ira): Call indirect_jump_optimize and delete_trivially_dead_insns before regstat_compute_ri. Don't rebuild_jump_labels here. Delete update_regstat. gcc/testsuite/ * gcc.dg/pr69195.c: New. * gcc.dg/pr69238.c: New. Added: trunk/gcc/testsuite/gcc.dg/pr69195.c trunk/gcc/testsuite/gcc.dg/pr69238.c Modified: trunk/gcc/ChangeLog trunk/gcc/ira.c trunk/gcc/testsuite/ChangeLog
[Bug rtl-optimization/47992] ICE: SIGSEGV in ira_reuse_stack_slot (ira-color.c:2887) with -fweb
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=47992 Bernd Schmidt changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution|--- |FIXED --- Comment #4 from Bernd Schmidt --- Patch committed as r232556.
[Bug rtl-optimization/47992] ICE: SIGSEGV in ira_reuse_stack_slot (ira-color.c:2887) with -fweb
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=47992 Bernd Schmidt changed: What|Removed |Added Status|UNCONFIRMED |ASSIGNED Last reconfirmed||2016-01-13 CC||bernds at gcc dot gnu.org Assignee|unassigned at gcc dot gnu.org |bernds at gcc dot gnu.org Ever confirmed|0 |1 --- Comment #3 from Bernd Schmidt --- No longer reproduces, but I think not fixed yet. Testing a patch.
[Bug rtl-optimization/47992] ICE: SIGSEGV in ira_reuse_stack_slot (ira-color.c:2887) with -fweb
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47992 --- Comment #2 from Andrew Pinski pinskia at gcc dot gnu.org 2012-02-02 08:33:32 UTC --- This works for me on the trunk.
[Bug rtl-optimization/47992] ICE: SIGSEGV in ira_reuse_stack_slot (ira-color.c:2887) with -fweb
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47992
--- Comment #1 from Zdenek Sojka zsojka at seznam dot cz 2011-03-04 20:02:03
UTC ---
Seems I forgot to paste the compiler output:
$ gcc -O -fno-dce -fgcse -fno-tree-ccp -fno-tree-dominator-opts
-funroll-all-loops -wrapper valgrind,-q,--num-callers=40 testcase.f
testcase.f:2.72:
ASSIGN 20 TO M !{ dg-warning Deleted feature: ASSIGN
1
Warning: Deleted feature: ASSIGN statement at (1)
testcase.f:6.72:
30 ASSIGN 10 TO M !{ dg-warning Deleted feature: ASSIGN
1
Warning: Deleted feature: ASSIGN statement at (1)
testcase.f:7.12:
40 GOTO M,(10,20,30)!{ dg-warning Deleted feature: Assigned
1
Warning: Deleted feature: Assigned GOTO statement at (1)
==1357== Invalid read of size 4
==1357==at 0x8027D1: ira_reuse_stack_slot (ira-color.c:2887)
==1357==by 0x8B54A6: alter_reg (reload1.c:2180)
==1357==by 0x8C00E1: reload (reload1.c:795)
==1357==by 0x7EDF78: ira (ira.c:3273)
==1357==by 0x7EFD8F: rest_of_handle_ira (ira.c:3343)
==1357==by 0x857895: execute_one_pass (passes.c:1556)
==1357==by 0x857B94: execute_pass_list (passes.c:1611)
==1357==by 0x857BA6: execute_pass_list (passes.c:1612)
==1357==by 0x99AAF5: tree_rest_of_compilation (tree-optimize.c:422)
==1357==by 0xB62B41: cgraph_expand_function (cgraphunit.c:1576)
==1357==by 0xB65289: cgraph_optimize (cgraphunit.c:1635)
==1357==by 0xB65809: cgraph_finalize_compilation_unit (cgraphunit.c:1096)
==1357==by 0x810D3C: write_global_declarations (langhooks.c:303)
==1357==by 0x943A87: toplev_main (toplev.c:591)
==1357==by 0x64AABBC: (below main) (in /lib64/libc-2.11.2.so)
==1357== Address 0xc is not stack'd, malloc'd or (recently) free'd
==1357==
testcase.f: In function 'MAIN__':
testcase.f:8:0: internal compiler error: Segmentation fault
Please submit a full bug report,
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See http://gcc.gnu.org/bugs.html for instructions.
