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| author | Martin Jambor <mjambor@suse.cz> | 2011-11-18 16:13:54 +0100 |
|---|---|---|
| committer | Martin Jambor <jamborm@gcc.gnu.org> | 2011-11-18 16:13:54 +0100 |
| commit | 39cc8c3d6bc5bd2d202a368bec2770c86497a408 (patch) | |
| tree | ac6d85de16d80fdad124ecf877b09fc745dc5d89 /gcc | |
| parent | f252165363acf536369823939446bf1459862852 (diff) | |
| download | gcc-39cc8c3d6bc5bd2d202a368bec2770c86497a408.zip gcc-39cc8c3d6bc5bd2d202a368bec2770c86497a408.tar.gz gcc-39cc8c3d6bc5bd2d202a368bec2770c86497a408.tar.bz2 | |
re PR tree-optimization/50605 (ice in ipa_get_jf_pass_through_result with -O3)
2011-11-18 Martin Jambor <mjambor@suse.cz>
PR tree-optimization/50605
* gimple.c (is_gimple_ip_invariant_address): Also handle MEM_REFs
of IPA invariant decls.
* testsuite/g++.dg/ipa/pr50605.C: New test.
From-SVN: r181477
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/gimple.c | 12 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/g++.dg/ipa/pr50605.C | 40 |
4 files changed, 62 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 16272e4..6fb03fa 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2011-11-18 Martin Jambor <mjambor@suse.cz> + + PR tree-optimization/50605 + * gimple.c (is_gimple_ip_invariant_address): Also handle MEM_REFs + of IPA invariant decls. + 2011-11-18 Bill Schmidt <wschmidt@linux.vnet.ibm.com> * tree-outof-ssa.c (insert_back_edge_copies): Add call to diff --git a/gcc/gimple.c b/gcc/gimple.c index 6168d33..071c651 100644 --- a/gcc/gimple.c +++ b/gcc/gimple.c @@ -2858,8 +2858,18 @@ is_gimple_ip_invariant_address (const_tree t) return false; op = strip_invariant_refs (TREE_OPERAND (t, 0)); + if (!op) + return false; + + if (TREE_CODE (op) == MEM_REF) + { + const_tree op0 = TREE_OPERAND (op, 0); + return (TREE_CODE (op0) == ADDR_EXPR + && (CONSTANT_CLASS_P (TREE_OPERAND (op0, 0)) + || decl_address_ip_invariant_p (TREE_OPERAND (op0, 0)))); + } - return op && (CONSTANT_CLASS_P (op) || decl_address_ip_invariant_p (op)); + return CONSTANT_CLASS_P (op) || decl_address_ip_invariant_p (op); } /* Return true if T is a GIMPLE minimal invariant. It's a restricted diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index f3157fc..1edc46c 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2011-11-18 Martin Jambor <mjambor@suse.cz> + + PR tree-optimization/50605 + * g++.dg/ipa/pr50605.C: New test. + 2011-11-18 Dodji Seketeli <dodji@redhat.com> PR c++/51191 diff --git a/gcc/testsuite/g++.dg/ipa/pr50605.C b/gcc/testsuite/g++.dg/ipa/pr50605.C new file mode 100644 index 0000000..4910a37 --- /dev/null +++ b/gcc/testsuite/g++.dg/ipa/pr50605.C @@ -0,0 +1,40 @@ +/* { dg-do compile } */ +/* { dg-options "-O3 -fno-early-inlining" } */ + +class A +{ +public: + int a; + void *stuff; +}; + +class B +{ +public: + int b; + void *other_stuff; + A array[50]; +}; + +extern B gb; + +int process_A (A *a) +{ + return a->a; +} + +int process_A_complex (A *a) +{ + return process_A (a+3); +} + +int process_B (B *b) +{ + return process_A_complex (&b->array[0]); +} + +int foo (void) +{ + return process_B (&gb); +} + |