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| author | Jakub Jelinek <jakub@redhat.com> | 2009-12-16 13:47:40 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2009-12-16 13:47:40 +0100 |
| commit | dc01fed16871b371d076f086d087b07ac3ac28cb (patch) | |
| tree | 5789822efe7fb747e4a9fe7b9270d1ab9afe0c66 | |
| parent | 9245e113af292e105fa4448020342c7efe00bbb8 (diff) | |
| download | gcc-dc01fed16871b371d076f086d087b07ac3ac28cb.zip gcc-dc01fed16871b371d076f086d087b07ac3ac28cb.tar.gz gcc-dc01fed16871b371d076f086d087b07ac3ac28cb.tar.bz2 | |
tree-chrec.c (chrec_convert_1): Only fold (T2)(t +- x) to (T2)t +- (T2)x if only integer types are involved.
* tree-chrec.c (chrec_convert_1): Only fold (T2)(t +- x) to
(T2)t +- (T2)x if only integer types are involved.
* gcc.c-torture/compile/20091215-1.c: New test.
From-SVN: r155288
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 2 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.c-torture/compile/20091215-1.c | 15 | ||||
| -rw-r--r-- | gcc/tree-chrec.c | 2 |
4 files changed, 24 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index f3958e6..b774fa3 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2009-12-16 Jakub Jelinek <jakub@redhat.com> + + * tree-chrec.c (chrec_convert_1): Only fold (T2)(t +- x) to + (T2)t +- (T2)x if only integer types are involved. + 2009-12-16 Ben Elliston <bje@au.ibm.com> * tree-data-ref.h (dot_rdg): Remove prototype. diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 7f650de..d0c0985 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,5 +1,7 @@ 2009-12-16 Jakub Jelinek <jakub@redhat.com> + * gcc.c-torture/compile/20091215-1.c: New test. + * gcc.dg/debug/tls-1.c: New test. 2009-12-15 Jason Merrill <jason@redhat.com> diff --git a/gcc/testsuite/gcc.c-torture/compile/20091215-1.c b/gcc/testsuite/gcc.c-torture/compile/20091215-1.c new file mode 100644 index 0000000..7862e2f --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/compile/20091215-1.c @@ -0,0 +1,15 @@ +void bar (); + +void +foo (void *x, short y) +{ + bar (x, y + 1); +} + +void +bar (x, y) + void *x; + char *y; +{ + baz (y); +} diff --git a/gcc/tree-chrec.c b/gcc/tree-chrec.c index 9711e20..18ed4ed 100644 --- a/gcc/tree-chrec.c +++ b/gcc/tree-chrec.c @@ -1293,6 +1293,8 @@ keep_cast: if (use_overflow_semantics && (TREE_CODE (chrec) == PLUS_EXPR || TREE_CODE (chrec) == MINUS_EXPR) + && TREE_CODE (type) == INTEGER_TYPE + && TREE_CODE (ct) == INTEGER_TYPE && TYPE_PRECISION (type) > TYPE_PRECISION (ct) && TYPE_OVERFLOW_UNDEFINED (ct)) res = fold_build2 (TREE_CODE (chrec), type, |