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| author | aldyh <aldyh@138bc75d-0d04-0410-961f-82ee72b054a4> | 2008-08-06 10:25:22 +0000 |
|---|---|---|
| committer | aldyh <aldyh@138bc75d-0d04-0410-961f-82ee72b054a4> | 2008-08-06 10:25:22 +0000 |
| commit | a6090c119ec004ea2c30ebe04d13e8dd0c096199 (patch) | |
| tree | cc04e81d2999277fd0cae5ae1df5edc92d66f468 | |
| parent | 5552c69f5743132f0182d43b28643ce2accc61a7 (diff) | |
| download | ppe42-gcc-a6090c119ec004ea2c30ebe04d13e8dd0c096199.tar.gz ppe42-gcc-a6090c119ec004ea2c30ebe04d13e8dd0c096199.zip | |
PR middle-end/35432
* gimplify.c (gimplify_modify_expr): Do not optimize zero-sized types
if want_value.
testsuite/
* gcc.c-torture/compile/pr35432.c: New file.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@138793 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/gimplify.c | 2 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.c-torture/compile/pr35432.c | 11 |
4 files changed, 22 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 3facfdb125e..b38ccbb2896 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2008-08-06 Aldy Hernandez <aldyh@redhat.com> + + PR middle-end/35432 + * gimplify.c (gimplify_modify_expr): Do not optimize zero-sized types + if want_value. + 2008-08-06 Jan Hubicka <jh@suse.cz> * predict.c (maybe_hot_frequency_p): When profile is absent, all diff --git a/gcc/gimplify.c b/gcc/gimplify.c index e7fc1679aa3..555a5b64c7e 100644 --- a/gcc/gimplify.c +++ b/gcc/gimplify.c @@ -4217,7 +4217,7 @@ gimplify_modify_expr (tree *expr_p, gimple_seq *pre_p, gimple_seq *post_p, side as statements and throw away the assignment. Do this after gimplify_modify_expr_rhs so we handle TARGET_EXPRs of addressable types properly. */ - if (zero_sized_type (TREE_TYPE (*from_p))) + if (zero_sized_type (TREE_TYPE (*from_p)) && !want_value) { gimplify_stmt (from_p, pre_p); gimplify_stmt (to_p, pre_p); diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 7a1b82cd640..1e035f3bf93 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,7 @@ +2008-08-06 Aldy Hernandez <aldyh@redhat.com> + PR middle-end/35432 + * gcc.c-torture/compile/pr35432.c: New file. + 2008-08-06 Arnaud Charlet <charlet@adacore.com> * gnat.dg/iface_test.ad[s,b]: New test. diff --git a/gcc/testsuite/gcc.c-torture/compile/pr35432.c b/gcc/testsuite/gcc.c-torture/compile/pr35432.c new file mode 100644 index 00000000000..6a0c9217746 --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/compile/pr35432.c @@ -0,0 +1,11 @@ +/* PR middle-end/35432 */ + +struct A +{ + char c[0]; +}; + +void foo(struct A a) +{ + (a = a).c; +} |
