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| author | Andrey Belevantsev <abel@ispras.ru> | 2018-04-23 18:19:06 +0300 |
|---|---|---|
| committer | Andrey Belevantsev <abel@gcc.gnu.org> | 2018-04-23 18:19:06 +0300 |
| commit | 99219dba378cab4ad63a338eb9a48f8685940dda (patch) | |
| tree | 035b6d33491758fed68fc5f9b173f71a5a905eb4 | |
| parent | 0ef9f21d3c4de3a6af258338523d35ea6c4d492f (diff) | |
| download | gcc-99219dba378cab4ad63a338eb9a48f8685940dda.zip gcc-99219dba378cab4ad63a338eb9a48f8685940dda.tar.gz gcc-99219dba378cab4ad63a338eb9a48f8685940dda.tar.bz2 | |
re PR rtl-optimization/85423 (ICE in code_motion_process_successors, at sel-sched.c:6403)
PR rtl-optimization/85423
* sel-sched-ir.c (has_dependence_note_mem_dep): Only discard
dependencies to debug insns when the previous insn is non-debug.
* gcc.dg/pr85423.c: New test.
From-SVN: r259563
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/sel-sched-ir.c | 2 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/pr85423.c | 27 |
4 files changed, 40 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 4dcf45e..135ac88 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2018-04-23 Andrey Belevantsev <abel@ispras.ru> + + PR rtl-optimization/85423 + + * sel-sched-ir.c (has_dependence_note_mem_dep): Only discard + dependencies to debug insns when the previous insn is non-debug. + 2018-04-23 Claudiu Zissulescu <claziss@synopsys.com> * config/arc/arc.md ("vunspec"): Delete it, unify all the unspec diff --git a/gcc/sel-sched-ir.c b/gcc/sel-sched-ir.c index ee97052..85ff5bd 100644 --- a/gcc/sel-sched-ir.c +++ b/gcc/sel-sched-ir.c @@ -3308,7 +3308,7 @@ has_dependence_note_dep (insn_t pro, ds_t ds ATTRIBUTE_UNUSED) that a bookkeeping copy should be movable as the original insn. Detect that here and allow that movement if we allowed it before in the first place. */ - if (DEBUG_INSN_P (real_con) + if (DEBUG_INSN_P (real_con) && !DEBUG_INSN_P (real_pro) && INSN_UID (NEXT_INSN (pro)) == INSN_UID (real_con)) return; diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 947b974..0b34bec 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2018-04-23 Andrey Belevantsev <abel@ispras.ru> + + PR rtl-optimization/85423 + * gcc.dg/pr85423.c: New test. + 2018-04-20 Martin Sebor <msebor@redhat.com> PR c/85365 diff --git a/gcc/testsuite/gcc.dg/pr85423.c b/gcc/testsuite/gcc.dg/pr85423.c new file mode 100644 index 0000000..2650d86 --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr85423.c @@ -0,0 +1,27 @@ +/* { dg-do compile { target powerpc*-*-* ia64-*-* i?86-*-* x86_64-*-* } } */ +/* { dg-options "-O2 -fselective-scheduling2 -fvar-tracking-assignments -fno-guess-branch-probability -fno-peephole2 -fno-ssa-phiopt -fno-tree-pre --param max-jump-thread-duplication-stmts=8 -w" } */ +/* { dg-additional-options "-march=nano" { target i?86-*-* x86_64-*-* } } */ + +int vn, xm; + +void +i1 (int); + +void +mb (int *ap, int ev) +{ + while (vn < 1) + { + i1 (vn); + + ev += *ap && ++vn; + + while (xm < 1) + ++xm; + + if (*ap == 0) + *ap = ev; + + ++vn; + } +} |