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| author | Ira Rosen <irar@il.ibm.com> | 2009-06-30 11:33:27 +0000 |
|---|---|---|
| committer | Ira Rosen <irar@gcc.gnu.org> | 2009-06-30 11:33:27 +0000 |
| commit | 1825a1f3cab46c55e7377ed50ab5bd1358b2b0ee (patch) | |
| tree | 1a3e1815802c814b678e40fab991cb4301007d6f /gcc | |
| parent | 0dca215363824df130e4a80b405baa4c7fbbe8a7 (diff) | |
| download | gcc-1825a1f3cab46c55e7377ed50ab5bd1358b2b0ee.zip gcc-1825a1f3cab46c55e7377ed50ab5bd1358b2b0ee.tar.gz gcc-1825a1f3cab46c55e7377ed50ab5bd1358b2b0ee.tar.bz2 | |
re PR tree-optimization/40542 (vectorizes access to volatile array)
PR tree-optimization/40542
* tree-vect-stmts.c (vect_analyze_stmt): Don't vectorize volatile
types.
From-SVN: r149090
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/vect/pr40542.c | 14 | ||||
| -rw-r--r-- | gcc/tree-vect-stmts.c | 8 |
4 files changed, 33 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 79637f0..644ef85 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2009-06-30 Ira Rosen <irar@il.ibm.com> + + PR tree-optimization/40542 + * tree-vect-stmts.c (vect_analyze_stmt): Don't vectorize volatile + types. + 2009-06-30 Martin Jambor <mjambor@suse.cz> PR tree-optimization/40582 diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 49ca9c1..7ab502e 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2009-06-30 Ira Rosen <irar@il.ibm.com> + + PR tree-optimization/40542 + * gcc.dg/vect/pr40542.c: New test. + 2009-06-30 Martin Jambor <mjambor@suse.cz> PR tree-optimization/40582 diff --git a/gcc/testsuite/gcc.dg/vect/pr40542.c b/gcc/testsuite/gcc.dg/vect/pr40542.c new file mode 100644 index 0000000..0a82772 --- /dev/null +++ b/gcc/testsuite/gcc.dg/vect/pr40542.c @@ -0,0 +1,14 @@ +/* { dg-do compile } */ + +void +volarr_cpy(char *d, volatile char *s) +{ + int i; + + for (i = 0; i < 16; i++) + d[i] = s[i]; +} + +/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { xfail *-*-* } } } */ +/* { dg-final { cleanup-tree-dump "vect" } } */ + diff --git a/gcc/tree-vect-stmts.c b/gcc/tree-vect-stmts.c index 586e906..1c9415b 100644 --- a/gcc/tree-vect-stmts.c +++ b/gcc/tree-vect-stmts.c @@ -3910,6 +3910,14 @@ vect_analyze_stmt (gimple stmt, bool *need_to_vectorize, slp_tree node) print_gimple_stmt (vect_dump, stmt, 0, TDF_SLIM); } + if (gimple_has_volatile_ops (stmt)) + { + if (vect_print_dump_info (REPORT_UNVECTORIZED_LOCATIONS)) + fprintf (vect_dump, "not vectorized: stmt has volatile operands"); + + return false; + } + /* Skip stmts that do not need to be vectorized. In loops this is expected to include: - the COND_EXPR which is the loop exit condition |