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author | Sebastian Pop <s.pop@samsung.com> | 2015-08-28 15:51:12 -0500 |
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committer | Sebastian Pop <s.pop@samsung.com> | 2015-08-28 16:47:05 -0500 |
commit | 65f8bbbcc74a4777f0629190ea9121fc94a79257 (patch) | |
tree | 4fff0a4fcd02fcdc01c0fbc0b0435b4be334a002 /gcc-4.9/gcc/testsuite/gcc.c-torture | |
parent | aa65e2d1e40e4dd0d936a275683c4aadfe8aa20f (diff) | |
download | toolchain_gcc-65f8bbbcc74a4777f0629190ea9121fc94a79257.tar.gz toolchain_gcc-65f8bbbcc74a4777f0629190ea9121fc94a79257.tar.bz2 toolchain_gcc-65f8bbbcc74a4777f0629190ea9121fc94a79257.zip |
backport fix for PR65735
PR tree-optimization/65735
* tree-ssa-threadedge.c (fsm_find_control_statement_thread_paths):
Remove visited_phis argument, add visited_bbs, avoid recursing into the
same bb rather than just into the same phi node.
(thread_through_normal_block): Adjust caller.
* gcc.c-torture/compile/pr65735.c: New test.
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.c-torture')
-rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.c-torture/compile/pr65735.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.c-torture/compile/pr65735.c b/gcc-4.9/gcc/testsuite/gcc.c-torture/compile/pr65735.c new file mode 100644 index 000000000..c30de8ea3 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.c-torture/compile/pr65735.c @@ -0,0 +1,21 @@ +/* PR tree-optimization/65735 */ + +int foo (void); + +void +bar (int a, int b, int c) +{ + while (!a) + { + c = foo (); + if (c == 7) + c = b; + switch (c) + { + case 1: + a = b++; + if (b) + b = 1; + } + } +} |