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| author | Richard Biener <rguenther@suse.de> | 2016-06-10 07:30:45 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2016-06-10 07:30:45 +0000 |
| commit | 200eafbfaeb8e4f9a14efa50c8427ab9004b6400 (patch) | |
| tree | 600e87459eef1037790c2b70bf4c9d5a7106f49a /gcc | |
| parent | 5eeb039f6ae9508caf0175cb6f2733aeb7f2c389 (diff) | |
| download | gcc-200eafbfaeb8e4f9a14efa50c8427ab9004b6400.zip gcc-200eafbfaeb8e4f9a14efa50c8427ab9004b6400.tar.gz gcc-200eafbfaeb8e4f9a14efa50c8427ab9004b6400.tar.bz2 | |
re PR tree-optimization/71477 (gcc ICE at -O3 on valid code on x86_64-linux-gnu with “seg fault”)
2016-06-10 Richard Biener <rguenther@suse.de>
PR middle-end/71477
* cfgloop.c (alloc_loop): Initialize nb_iterations_likely_upper_bound.
* gcc.dg/torture/pr71477.c: New testcase.
From-SVN: r237287
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/cfgloop.c | 1 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/torture/pr71477.c | 11 |
4 files changed, 22 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index d1fcd18..c589250 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2016-06-10 Richard Biener <rguenther@suse.de> + + PR middle-end/71477 + * cfgloop.c (alloc_loop): Initialize nb_iterations_likely_upper_bound. + 2016-06-09 Eric Botcazou <ebotcazou@adacore.com> * df-problems.c (df_note_bb_compute): Guard use of DF_INSN_INFO_GET. diff --git a/gcc/cfgloop.c b/gcc/cfgloop.c index 27ccfb2..5650f0d 100644 --- a/gcc/cfgloop.c +++ b/gcc/cfgloop.c @@ -331,6 +331,7 @@ alloc_loop (void) loop->exits->next = loop->exits->prev = loop->exits; loop->can_be_parallel = false; loop->nb_iterations_upper_bound = 0; + loop->nb_iterations_likely_upper_bound = 0; loop->nb_iterations_estimate = 0; return loop; } diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index d2f9a70..c93f6fa 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2016-06-10 Richard Biener <rguenther@suse.de> + + PR middle-end/71477 + * gcc.dg/torture/pr71477.c: New testcase. + 2016-06-09 Julia Koval <julia.koval@intel.com> * gcc.target/i386/interrupt-12.c: Fix test for -fpic and corei7. diff --git a/gcc/testsuite/gcc.dg/torture/pr71477.c b/gcc/testsuite/gcc.dg/torture/pr71477.c new file mode 100644 index 0000000..c6d0c31 --- /dev/null +++ b/gcc/testsuite/gcc.dg/torture/pr71477.c @@ -0,0 +1,11 @@ +/* { dg-do compile } */ + +#define N 6 +int a; +void fn1() +{ + int k = 0; + for (; k < N;) + for (a = 0; a < N; k++) + a = k + N; +} |