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| author | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-09-04 23:29:58 +0000 |
|---|---|---|
| committer | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-09-04 23:29:58 +0000 |
| commit | 1497cc76cfade712c1489186c30bd21eb095ee8d (patch) | |
| tree | 47fa3e7b4caef2ebb6aed121cfd5527f9d330763 | |
| parent | 587cc80fe7c26b61fa2484443dbf5b46cc186d55 (diff) | |
| download | ppe42-gcc-1497cc76cfade712c1489186c30bd21eb095ee8d.tar.gz ppe42-gcc-1497cc76cfade712c1489186c30bd21eb095ee8d.zip | |
PR tree-optimization/33017
* tree-data-ref.c (split_constant_offset) <case SSA_NAME>: Don't
recurse for pure or const function calls.
* gcc.dg/pr33017.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@128107 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/pr33017.c | 30 | ||||
| -rw-r--r-- | gcc/tree-data-ref.c | 3 |
4 files changed, 41 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 8cbaeaa3d92..7f83513aeb5 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -3,6 +3,10 @@ * config/rs6000/tramp.asm: Include config.h. Check __PIC__ or __pic__ macro instead of SHARED. + PR tree-optimization/33017 + * tree-data-ref.c (split_constant_offset) <case SSA_NAME>: Don't + recurse for pure or const function calls. + 2007-09-04 Laurynas Biveinis <laurynas.biveinis@gmail.com> * c-format.c: Include alloc-pool.h. diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index b68ba679f74..b191442349e 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2007-09-05 Jakub Jelinek <jakub@redhat.com> + + PR tree-optimization/33017 + * gcc.dg/pr33017.c: New test. + 2007-09-05 Ben Elliston <bje@au.ibm.com> * gcc.target/powerpc/ppu-intrinsics.c: Add test cases for the diff --git a/gcc/testsuite/gcc.dg/pr33017.c b/gcc/testsuite/gcc.dg/pr33017.c new file mode 100644 index 00000000000..851fe71f860 --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr33017.c @@ -0,0 +1,30 @@ +/* PR tree-optimization/33017 */ +/* { dg-do run } */ +/* { dg-options "-O2 -ftree-vectorize" } */ + +extern __SIZE_TYPE__ strlen (const char *); +extern void abort (void); + +char * +__attribute__((noinline)) +foo (const char *string) +{ + int len; + static char var[0x104]; + int off; + len = strlen (string); + for (off = 0; off < 64; off++) + var[len + off + 2] = 0x57; + return var; +} + +int +main (void) +{ + char *p = foo ("abcd"); + int i; + for (i = 0; i < 0x104; i++) + if (p[i] != ((i >= 6 && i < 70) ? 0x57 : 0)) + abort (); + return 0; +} diff --git a/gcc/tree-data-ref.c b/gcc/tree-data-ref.c index 6ad2e96bea5..720c94d5998 100644 --- a/gcc/tree-data-ref.c +++ b/gcc/tree-data-ref.c @@ -574,7 +574,8 @@ split_constant_offset (tree exp, tree *var, tree *off) if (!TREE_SIDE_EFFECTS (def_stmt_rhs) && EXPR_P (def_stmt_rhs) - && !REFERENCE_CLASS_P (def_stmt_rhs)) + && !REFERENCE_CLASS_P (def_stmt_rhs) + && !get_call_expr_in (def_stmt_rhs)) { split_constant_offset (def_stmt_rhs, &var0, &off0); var0 = fold_convert (type, var0); |
