[Bug rtl-optimization/79125] [7 Regression] ICE in rtl_verify_bb_insns, at cfgrtl.c:2661 (error: flow control insn inside a basic block)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79125 Jeffrey A. Law changed: What|Removed |Added Status|NEW |RESOLVED Resolution|--- |FIXED --- Comment #6 from Jeffrey A. Law --- Fixed by Bernd's patch on the trunk.
[Bug rtl-optimization/79125] [7 Regression] ICE in rtl_verify_bb_insns, at cfgrtl.c:2661 (error: flow control insn inside a basic block)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79125 --- Comment #5 from Jeffrey A. Law --- Author: law Date: Sat Jan 21 07:23:47 2017 New Revision: 244741 URL: https://gcc.gnu.org/viewcvs?rev=244741&root=gcc&view=rev Log: 2017-01-21 Bernd Schmidt rtl-optimization/79125 * cprop.c (local_cprop_pass): Handle cases where we make an unconditional trap. PR rtl-optimization/79125 * gcc.dg/torture/pr79125.c: New test. Added: trunk/gcc/testsuite/gcc.dg/torture/pr79125.c Modified: trunk/gcc/ChangeLog trunk/gcc/cprop.c trunk/gcc/testsuite/ChangeLog
[Bug rtl-optimization/79125] [7 Regression] ICE in rtl_verify_bb_insns, at cfgrtl.c:2661 (error: flow control insn inside a basic block)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79125 Bernd Schmidt changed: What|Removed |Added CC||bernds at gcc dot gnu.org Assignee|unassigned at gcc dot gnu.org |bernds at gcc dot gnu.org --- Comment #4 from Bernd Schmidt --- Actually just the same approach we used for the global pass ought to just work. Watch for conditional traps turning into unconditional ones, put those in a vec, split basic blocks later for every element in the vec.
[Bug rtl-optimization/79125] [7 Regression] ICE in rtl_verify_bb_insns, at cfgrtl.c:2661 (error: flow control insn inside a basic block)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79125 Jeffrey A. Law changed: What|Removed |Added CC||bernds at redhat dot com --- Comment #3 from Jeffrey A. Law --- Forgot to CC Bernd. Bernd, this might be an easy one for you to pick up.
[Bug rtl-optimization/79125] [7 Regression] ICE in rtl_verify_bb_insns, at cfgrtl.c:2661 (error: flow control insn inside a basic block)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79125 Jeffrey A. Law changed: What|Removed |Added Priority|P3 |P2 Status|UNCONFIRMED |NEW Last reconfirmed||2017-01-19 CC||law at redhat dot com Ever confirmed|0 |1 --- Comment #2 from Jeffrey A. Law --- So in this case the conditional trap is in BB2 and is turned into an unconditional trap by local cprop. Note the code that currently scans for traps skips BB2 (no global cprop can happen in that block). It also ignores insns that are unconditional traps at the start of the global pass. local_cprop_pass ought to be able to see every possible conditional during its scan. Put those onto a worklist. After the global pass is done, walk the worklist. If the entry on the list is an unconditional trap and its containing block has any successors, then we need to split after the trap and insert the barrier. It means a bit more worklist scanning, since we'll put all traps (conditional or unconditional) on the list. But that ought to be in the noise relative to everything else going on. Bernd, you want to take this one? I've got a ppc64 beaker box handy for additional testing once you've got a patch.
[Bug rtl-optimization/79125] [7 Regression] ICE in rtl_verify_bb_insns, at cfgrtl.c:2661 (error: flow control insn inside a basic block)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79125 Richard Biener changed: What|Removed |Added Target Milestone|--- |7.0
[Bug rtl-optimization/79125] [7 Regression] ICE in rtl_verify_bb_insns, at cfgrtl.c:2661 (error: flow control insn inside a basic block)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79125
Arseny Solokha changed:
What|Removed |Added
Keywords||ice-on-valid-code
--- Comment #1 from Arseny Solokha ---
aqluuplt.c: In function 'hl':
aqluuplt.c:32:1: error: in basic block 2:
}
^
aqluuplt.c:32:1: error: flow control insn inside a basic block
(insn 79 22 78 2 (trap_if (const_int 1 [0x1])
(const_int 0 [0])) 824 {trap}
(nil))
aqluuplt.c:32:1: internal compiler error: in rtl_verify_bb_insns, at
cfgrtl.c:2661
0x3174763ed05 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-7.0.0_alpha20170115/work/gcc-7-20170115/gcc/rtl-error.c:108
0x317472018c7 rtl_verify_bb_insns
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-7.0.0_alpha20170115/work/gcc-7-20170115/gcc/cfgrtl.c:2661
0x317472018c7 rtl_verify_flow_info_1
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-7.0.0_alpha20170115/work/gcc-7-20170115/gcc/cfgrtl.c:2747
0x317471eda1d verify_flow_info()
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-7.0.0_alpha20170115/work/gcc-7-20170115/gcc/cfghooks.c:258
0x317475c8161 execute_function_todo
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-7.0.0_alpha20170115/work/gcc-7-20170115/gcc/passes.c:1977
0x317475c8fab execute_todo
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-7.0.0_alpha20170115/work/gcc-7-20170115/gcc/passes.c:2015
