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| author | Bernd Schmidt <bernds@codesourcery.com> | 2011-08-05 18:22:36 +0000 |
|---|---|---|
| committer | Bernd Schmidt <bernds@gcc.gnu.org> | 2011-08-05 18:22:36 +0000 |
| commit | 2c331232e9ae426fc338928650355ecfab176290 (patch) | |
| tree | 3b0691811f79a6103d1c1443b06988b05ff378a8 /gcc | |
| parent | 44e9520681e7911fd6af8c180a1435a74c340a03 (diff) | |
| download | gcc-2c331232e9ae426fc338928650355ecfab176290.zip gcc-2c331232e9ae426fc338928650355ecfab176290.tar.gz gcc-2c331232e9ae426fc338928650355ecfab176290.tar.bz2 | |
re PR rtl-optimization/49900 (ICE in advance_target_bb, at sched-ebb.c:691)
PR rtl-optimization/49900
* sched-ebb.c (add_deps_for_risky_insns): Also add dependencies to
ensure basic blocks stay in the same order.
From-SVN: r177475
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/sched-ebb.c | 3 |
2 files changed, 9 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 2e897ae..ba172aa 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2011-08-05 Bernd Schmidt <bernds@codesourcery.com> + + PR rtl-optimization/49900 + * sched-ebb.c (add_deps_for_risky_insns): Also add dependencies to + ensure basic blocks stay in the same order. + 2011-08-05 Aldy Hernandez <aldyh@redhat.com> * config/s390/s390.c (s390_expand_cs_hqi): Add new arguments to diff --git a/gcc/sched-ebb.c b/gcc/sched-ebb.c index 726c7c6..ca0e144 100644 --- a/gcc/sched-ebb.c +++ b/gcc/sched-ebb.c @@ -397,6 +397,9 @@ add_deps_for_risky_insns (rtx head, rtx tail) bb = BLOCK_FOR_INSN (insn); bb->aux = last_block; last_block = bb; + /* Ensure blocks stay in the same order. */ + if (last_jump) + add_dependence (insn, last_jump, REG_DEP_ANTI); last_jump = insn; } else if (INSN_P (insn) && last_jump != NULL_RTX) |