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| author | Alexandre Oliva <aoliva@redhat.com> | 2010-12-13 03:08:06 +0000 |
|---|---|---|
| committer | Alexandre Oliva <aoliva@gcc.gnu.org> | 2010-12-13 03:08:06 +0000 |
| commit | 11321111221bd6f8ce17c254452132a6fbd5abd7 (patch) | |
| tree | 9003b88e1c055be42fd5dbdcc718b461c42629c0 /gcc | |
| parent | 6930a9f664805681ba354af8378cef2ed9d661a1 (diff) | |
| download | gcc-11321111221bd6f8ce17c254452132a6fbd5abd7.zip gcc-11321111221bd6f8ce17c254452132a6fbd5abd7.tar.gz gcc-11321111221bd6f8ce17c254452132a6fbd5abd7.tar.bz2 | |
re PR debug/46782 (-fcompare-debug failure (length) with -fvar-tracking)
gcc/ChangeLog:
PR debug/46782
* cfgcleanup.c (try_forward_edges): Skip debug insns.
gcc/testsuite/ChangeLog:
PR debug/46782
* gcc.dg/debug/pr46782.c: New.
From-SVN: r167737
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/cfgcleanup.c | 10 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/debug/pr46782.c | 11 |
4 files changed, 29 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 73329a8..92397f1 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2010-12-13 Alexandre Oliva <aoliva@redhat.com> + + PR debug/46782 + * cfgcleanup.c (try_forward_edges): Skip debug insns. + 2010-12-12 Jan Hubicka <jh@suse.cz> Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE> diff --git a/gcc/cfgcleanup.c b/gcc/cfgcleanup.c index c365b5e..78635d2 100644 --- a/gcc/cfgcleanup.c +++ b/gcc/cfgcleanup.c @@ -487,11 +487,17 @@ try_forward_edges (int mode, basic_block b) new_target = NULL; else { + rtx last; + if (new_locus) locus = new_locus; - new_locus = INSN_P (BB_END (target)) - ? INSN_LOCATOR (BB_END (target)) : 0; + last = BB_END (target); + if (DEBUG_INSN_P (last)) + last = prev_nondebug_insn (last); + + new_locus = last && INSN_P (last) + ? INSN_LOCATOR (last) : 0; if (new_locus && locus && !locator_eq (new_locus, locus)) new_target = NULL; diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 5cf2c03..05a4341 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2010-12-13 Alexandre Oliva <aoliva@redhat.com> + + PR debug/46782 + * gcc.dg/debug/pr46782.c: New. + 2010-12-12 Janus Weil <janus@gcc.gnu.org> PR fortran/46809 diff --git a/gcc/testsuite/gcc.dg/debug/pr46782.c b/gcc/testsuite/gcc.dg/debug/pr46782.c new file mode 100644 index 0000000..1603b09 --- /dev/null +++ b/gcc/testsuite/gcc.dg/debug/pr46782.c @@ -0,0 +1,11 @@ +/* PR debug/46782 */ +/* { dg-do compile } */ +/* { dg-options "-w -O0 -fvar-tracking -fcompare-debug" } */ + +void foo (int i) +{ + if (i) + i++; + while (i) + ; +} |