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| author | Bill Schmidt <wschmidt@linux.vnet.ibm.com> | 2017-08-08 12:52:22 +0000 |
|---|---|---|
| committer | William Schmidt <wschmidt@gcc.gnu.org> | 2017-08-08 12:52:22 +0000 |
| commit | b115e80367277d58bc5476c3c748cf7ec2432a10 (patch) | |
| tree | ee1285d136d13ca5a855ccee90ea0165ff209691 /gcc/testsuite | |
| parent | 51bd28edcbf49844d696c38af4945ce5fc25ba15 (diff) | |
| download | gcc-b115e80367277d58bc5476c3c748cf7ec2432a10.zip gcc-b115e80367277d58bc5476c3c748cf7ec2432a10.tar.gz gcc-b115e80367277d58bc5476c3c748cf7ec2432a10.tar.bz2 | |
re PR tree-optimization/81354 (Segmentation fault in SSA Strength Reduction using -O3)
[gcc]
2017-08-08 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
PR tree-optimization/81354
* gimple-ssa-strength-reduction.c (create_add_on_incoming_edge):
Insert on edges rather than explicitly creating landing pads.
(analyze_candidates_and_replace): Commit edge inserts.
[gcc/testsuite]
2017-08-08 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
PR tree-optimization/81354
* g++.dg/torture/pr81354.C: New file.
From-SVN: r250955
Diffstat (limited to 'gcc/testsuite')
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/g++.dg/torture/pr81354.C | 24 |
2 files changed, 29 insertions, 0 deletions
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 1fec0ec..e2d081d 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2017-08-08 Bill Schmidt <wschmidt@linux.vnet.ibm.com> + + PR tree-optimization/81354 + * g++.dg/torture/pr81354.C: New file. + 2017-08-08 Richard Biener <rguenther@suse.de> PR middle-end/81719 diff --git a/gcc/testsuite/g++.dg/torture/pr81354.C b/gcc/testsuite/g++.dg/torture/pr81354.C new file mode 100644 index 0000000..b3ba8f0 --- /dev/null +++ b/gcc/testsuite/g++.dg/torture/pr81354.C @@ -0,0 +1,24 @@ +// PR81354 reported this test as crashing in a limited range of revisions. +// { dg-do compile } + +struct T { double a; double b; }; + +void foo(T Ad[], int As[2]) +{ + int j; + int i; + int Bs[2] = {0,0}; + T Bd[16]; + + for (j = 0; j < 4; j++) { + for (i = 0; i + 1 <= j + 1; i++) { + Ad[i + As[0] * j] = Bd[i + Bs[0] * j]; + } + + i = j + 1; // <- comment out this line and it does not crash + for (; i + 1 < 5; i++) { + Ad[i + As[0] * j].a = 0.0; + Ad[i + As[0] * j].b = 0.0; + } + } +} |