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| author | David Daney <ddaney@caviumnetworks.com> | 2009-06-17 19:27:35 +0000 |
|---|---|---|
| committer | David Daney <daney@gcc.gnu.org> | 2009-06-17 19:27:35 +0000 |
| commit | 2cb0a60da1e179e012a43c23c4c1a7e875fd9504 (patch) | |
| tree | 0ee9c88e716310a821d02281dcf3c8aa315aa9b9 | |
| parent | f9c3538320c5f1a6dee5d5ee26c88a90761aab2f (diff) | |
| download | gcc-2cb0a60da1e179e012a43c23c4c1a7e875fd9504.zip gcc-2cb0a60da1e179e012a43c23c4c1a7e875fd9504.tar.gz gcc-2cb0a60da1e179e012a43c23c4c1a7e875fd9504.tar.bz2 | |
jump.c (cleanup_barriers): Handle case of no insns before a barrier.
2009-06-17 David Daney <ddaney@caviumnetworks.com>
* jump.c (cleanup_barriers): Handle case of no insns before a
barrier.
2009-06-17 David Daney <ddaney@caviumnetworks.com>
* gcc.dg/builtin-unreachable-3.c: New test.
From-SVN: r148624
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/jump.c | 2 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/builtin-unreachable-3.c | 9 |
4 files changed, 20 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 1a5a9a6..9776a81 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2009-06-17 David Daney <ddaney@caviumnetworks.com> + + * jump.c (cleanup_barriers): Handle case of no insns before a + barrier. + 2009-06-17 David Edelsohn <edelsohn@gnu.org> * config/rs6000/dfp.md (nabsdd2_fpr): Correct mode. @@ -113,6 +113,8 @@ cleanup_barriers (void) if (BARRIER_P (insn)) { prev = prev_nonnote_insn (insn); + if (!prev) + continue; if (BARRIER_P (prev)) delete_insn (insn); else if (prev != PREV_INSN (insn)) diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 873ec27..5b7b369 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,5 +1,9 @@ 2009-06-17 David Daney <ddaney@caviumnetworks.com> + * gcc.dg/builtin-unreachable-3.c: New test. + +2009-06-17 David Daney <ddaney@caviumnetworks.com> + * gcc.target/i386/builtin-unreachable.c: New test. 2009-06-17 Ian Lance Taylor <iant@google.com> diff --git a/gcc/testsuite/gcc.dg/builtin-unreachable-3.c b/gcc/testsuite/gcc.dg/builtin-unreachable-3.c new file mode 100644 index 0000000..6ad6926 --- /dev/null +++ b/gcc/testsuite/gcc.dg/builtin-unreachable-3.c @@ -0,0 +1,9 @@ +/* Check that a function containing only __builtin_unreachable() + doesn't ICE. */ +/* { dg-do compile } */ +/* { dg-options "-O2" } */ +const char * +f (void) +{ + __builtin_unreachable (); +} |