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| author | Richard Sandiford <richard.sandiford@linaro.org> | 2017-08-13 20:28:12 +0100 |
|---|---|---|
| committer | Richard Sandiford <richard.sandiford@linaro.org> | 2017-11-20 11:42:55 +0000 |
| commit | c1802e041d9b69f83ff072a323840bb0deaa5a60 (patch) | |
| tree | 85206e008adce16875efb582671748d8553a282a | |
| parent | 5469f7dda621b93d195ed0b8d770a89021b99414 (diff) | |
| download | gcc-c1802e041d9b69f83ff072a323840bb0deaa5a60.tar.gz | |
Work around PR81082
| -rw-r--r-- | gcc/fold-const.c | 2 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/loop-15.c | 2 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/pr23294.c | 6 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/pr63586-2.c | 2 |
4 files changed, 7 insertions, 5 deletions
diff --git a/gcc/fold-const.c b/gcc/fold-const.c index cd278756b14..912411f820f 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -7187,6 +7187,8 @@ fold_plusminus_mult_expr (location_t loc, enum tree_code code, tree type, fold_convert_loc (loc, type, alt1)), fold_convert_loc (loc, type, same)); + return NULL_TREE; + /* Same may be zero and thus the operation 'code' may overflow. Likewise same may be minus one and thus the multiplication may overflow. Perform the operations in an unsigned type. */ diff --git a/gcc/testsuite/gcc.dg/tree-ssa/loop-15.c b/gcc/testsuite/gcc.dg/tree-ssa/loop-15.c index dce6ad57a04..b437518487d 100644 --- a/gcc/testsuite/gcc.dg/tree-ssa/loop-15.c +++ b/gcc/testsuite/gcc.dg/tree-ssa/loop-15.c @@ -19,7 +19,7 @@ int bla(void) } /* Since the loop is removed, there should be no addition. */ -/* { dg-final { scan-tree-dump-times " \\+ " 0 "optimized" } } */ +/* { dg-final { scan-tree-dump-times " \\+ " 0 "optimized" { xfail *-*-* } } } */ /* { dg-final { scan-tree-dump-times " \\* " 1 "optimized" } } */ /* The if from the loop header copying remains in the code. */ diff --git a/gcc/testsuite/gcc.dg/tree-ssa/pr23294.c b/gcc/testsuite/gcc.dg/tree-ssa/pr23294.c index 8f9fffb1647..f6b51907d6c 100644 --- a/gcc/testsuite/gcc.dg/tree-ssa/pr23294.c +++ b/gcc/testsuite/gcc.dg/tree-ssa/pr23294.c @@ -31,6 +31,6 @@ int f6(int a, int b) return 6*a - 2*b; } -/* { dg-final { scan-tree-dump-times "a_..D. \\\* 5" 3 "optimized" } } */ -/* { dg-final { scan-tree-dump-times " \\\* 2" 3 "optimized" } } */ -/* { dg-final { scan-tree-dump-not "\\\* 6" "optimized" } } */ +/* { dg-final { scan-tree-dump-times "a_..D. \\\* 5" 3 "optimized" { xfail *-*-* } } } */ +/* { dg-final { scan-tree-dump-times " \\\* 2" 3 "optimized" { xfail *-*-* } } } */ +/* { dg-final { scan-tree-dump-not "\\\* 6" "optimized" { xfail *-*-* } } } */ diff --git a/gcc/testsuite/gcc.dg/tree-ssa/pr63586-2.c b/gcc/testsuite/gcc.dg/tree-ssa/pr63586-2.c index 0dcfe327358..578ca10fb38 100644 --- a/gcc/testsuite/gcc.dg/tree-ssa/pr63586-2.c +++ b/gcc/testsuite/gcc.dg/tree-ssa/pr63586-2.c @@ -28,5 +28,5 @@ int f1_int (int x) /* { dg-final { scan-tree-dump-times "\\\* 8\\\.0e\\\+0" 1 "reassoc1" } } */ /* { dg-final { scan-tree-dump-times "\\\* 5\\\.0e\\\+0" 1 "reassoc1" } } */ -/* { dg-final { scan-tree-dump-times "\\\* 6" 1 "reassoc1" } } */ +/* { dg-final { scan-tree-dump-times "\\\* 6" 1 "reassoc1" { xfail *-*-* } } } */ |