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| author | Kugan Vivekanandarajah <kuganv@linaro.org> | 2016-05-30 10:45:19 +0000 |
|---|---|---|
| committer | Kugan Vivekanandarajah <kugan@gcc.gnu.org> | 2016-05-30 10:45:19 +0000 |
| commit | db5447cad85ddee2973bc95cb5d4890b8c3d847b (patch) | |
| tree | 32ce00e2bcfd9fa901b79d69966b3b9c1446ac01 /gcc | |
| parent | 98bdbb39a6676776c528f3b51ce740669c06d708 (diff) | |
| download | gcc-db5447cad85ddee2973bc95cb5d4890b8c3d847b.zip gcc-db5447cad85ddee2973bc95cb5d4890b8c3d847b.tar.gz gcc-db5447cad85ddee2973bc95cb5d4890b8c3d847b.tar.bz2 | |
re PR tree-optimization/71252 (ICE: verify_ssa failed : definition in block 7 does not dominate use in block 6)
gcc/ChangeLog:
2016-05-30 Kugan Vivekanandarajah <kuganv@linaro.org>
PR middle-end/71252
* tree-ssa-reassoc.c (swap_ops_for_binary_stmt): Fix swap such that
all fields including stmt_to_insert are swapped.
gcc/testsuite/ChangeLog:
2016-05-30 Kugan Vivekanandarajah <kuganv@linaro.org>
PR middle-end/71252
* gcc.dg/tree-ssa/pr71252-2.c: New test.
From-SVN: r236875
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/pr71252-2.c | 9 | ||||
| -rw-r--r-- | gcc/tree-ssa-reassoc.c | 16 |
4 files changed, 22 insertions, 14 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 815a43d..c88748f 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2016-05-30 Kugan Vivekanandarajah <kuganv@linaro.org> + + PR middle-end/71252 + * tree-ssa-reassoc.c (swap_ops_for_binary_stmt): Fix swap such that + all fields including stmt_to_insert are swapped. + 2016-05-30 Jan Hubicka <hubicka@ucw.cz> * predict.h (force_edge_cold): Declare. diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 8b989b4..37f06b7 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2016-05-30 Kugan Vivekanandarajah <kuganv@linaro.org> + + PR middle-end/71252 + * gcc.dg/tree-ssa/pr71252-2.c: New test. + 2016-05-30 Jan Hubicka <hubicka@ucw.cz> * gcc.dg/tree-ssa/cunroll-12.c: New testcase. diff --git a/gcc/testsuite/gcc.dg/tree-ssa/pr71252-2.c b/gcc/testsuite/gcc.dg/tree-ssa/pr71252-2.c new file mode 100644 index 0000000..e621d3e --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/pr71252-2.c @@ -0,0 +1,9 @@ +/* PR middle-end/71252 */ +/* { dg-do compile } */ +/* { dg-options "-O2" } */ +unsigned a; +int b, c; +void fn1 () +{ + b = a + c + 3 + c; +} diff --git a/gcc/tree-ssa-reassoc.c b/gcc/tree-ssa-reassoc.c index c9ed679..d13be29 100644 --- a/gcc/tree-ssa-reassoc.c +++ b/gcc/tree-ssa-reassoc.c @@ -3763,25 +3763,13 @@ swap_ops_for_binary_stmt (vec<operand_entry *> ops, || (stmt && is_phi_for_stmt (stmt, oe3->op) && !is_phi_for_stmt (stmt, oe1->op) && !is_phi_for_stmt (stmt, oe2->op))) - { - operand_entry temp = *oe3; - oe3->op = oe1->op; - oe3->rank = oe1->rank; - oe1->op = temp.op; - oe1->rank= temp.rank; - } + std::swap (*oe1, *oe3); else if ((oe1->rank == oe3->rank && oe2->rank != oe3->rank) || (stmt && is_phi_for_stmt (stmt, oe2->op) && !is_phi_for_stmt (stmt, oe1->op) && !is_phi_for_stmt (stmt, oe3->op))) - { - operand_entry temp = *oe2; - oe2->op = oe1->op; - oe2->rank = oe1->rank; - oe1->op = temp.op; - oe1->rank = temp.rank; - } + std::swap (*oe1, *oe3); } /* If definition of RHS1 or RHS2 dominates STMT, return the later of those |