diff options
| -rw-r--r-- | gcc/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/gcse.c | 3 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.c-torture/compile/20071118-1.c | 17 |
4 files changed, 28 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index e3b5f84..cf958d1 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,9 @@ 2007-11-18 Jakub Jelinek <jakub@redhat.com> + PR rtl-optimization/34132 + * gcse.c (try_replace_reg): Avoid rtx sharing between REG_EQUAL note + and insn. + PR middle-end/33335 * optabs.h (optab_table): Change type to struct optab from optab. (convert_optab_table): Similarly. @@ -2665,7 +2665,8 @@ try_replace_reg (rtx from, rtx to, rtx insn) with our replacement. */ if (note != 0 && REG_NOTE_KIND (note) == REG_EQUAL) set_unique_reg_note (insn, REG_EQUAL, - simplify_replace_rtx (XEXP (note, 0), from, to)); + simplify_replace_rtx (XEXP (note, 0), from, + copy_rtx (to))); if (!success && set && reg_mentioned_p (from, SET_SRC (set))) { /* If above failed and this is a single set, try to simplify the source of diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 6d3bd10..cf4759f 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2007-11-18 Jakub Jelinek <jakub@redhat.com> + + PR rtl-optimization/34132 + * gcc.c-torture/compile/20071118-1.c: New test. + 2007-11-18 Paul Thomas <pault@gcc.gnu.org> PR fortran/31608 diff --git a/gcc/testsuite/gcc.c-torture/compile/20071118-1.c b/gcc/testsuite/gcc.c-torture/compile/20071118-1.c new file mode 100644 index 0000000..d093d3f --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/compile/20071118-1.c @@ -0,0 +1,17 @@ +/* PR rtl-optimization/34132 */ +/* Testcase by Martin Michlmayr <tbm@cyrius.com> */ + +static char *m = "%s%u.msg"; +extern void bar (int, const char *); +void foo (short x, int y, int z) +{ + if (x == 0) + { + bar (y, m); + z = 1; + } + else if (x == 1) + z = 0; + bar (y, m); + bar (z, "%d"); +} |