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| author | Steven Bosscher <steven@gcc.gnu.org> | 2010-12-21 14:55:41 +0000 |
|---|---|---|
| committer | Steven Bosscher <steven@gcc.gnu.org> | 2010-12-21 14:55:41 +0000 |
| commit | 59db109afd1513b2fa26ef4adcf85ba80d5eab59 (patch) | |
| tree | a2e3888767a472fd1e3d9b75c9dcbcaa19f33cbe /gcc | |
| parent | 96676a5df76b1fe038fde93107ef7107c17e7ee6 (diff) | |
| download | gcc-59db109afd1513b2fa26ef4adcf85ba80d5eab59.zip gcc-59db109afd1513b2fa26ef4adcf85ba80d5eab59.tar.gz gcc-59db109afd1513b2fa26ef4adcf85ba80d5eab59.tar.bz2 | |
re PR rtl-optimization/46755 (ICE: in calc_dfs_tree, at dominance.c:395 with -O)
gcc/
PR rtl-optimization/46755
* ira.c (ira): If some dead edges were removed, find and delete
any blocks that might have become unreachable.
testsuite/
PR rtl-optimization/46755
* gfortran.dg/pr46755.f: New test
From-SVN: r168118
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/ira.c | 3 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gfortran.dg/pr46755.f | 23 |
4 files changed, 36 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 2b47e8e..bfdad2f 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2010-12-21 Steven Bosscher <steven@gcc.gnu.org> + + PR rtl-optimization/46755 + * ira.c (ira): If some dead edges were removed, find and delete + any blocks that might have become unreachable. + 2010-12-21 Jakub Jelinek <jakub@redhat.com> PR rtl-optimization/47008 @@ -3158,7 +3158,8 @@ ira (FILE *f) { timevar_push (TV_JUMP); rebuild_jump_labels (get_insns ()); - purge_all_dead_edges (); + if (purge_all_dead_edges ()) + delete_unreachable_blocks (); timevar_pop (TV_JUMP); } } diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 3a66f1c..d66df22 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2010-12-21 Steven Bosscher <steven@gcc.gnu.org> + + PR rtl-optimization/46755 + * gfortran.dg/pr46755.f: New test. + 2010-12-21 Jakub Jelinek <jakub@redhat.com> PR rtl-optimization/47008 diff --git a/gcc/testsuite/gfortran.dg/pr46755.f b/gcc/testsuite/gfortran.dg/pr46755.f new file mode 100644 index 0000000..ff764a7 --- /dev/null +++ b/gcc/testsuite/gfortran.dg/pr46755.f @@ -0,0 +1,23 @@ +C { dg-do compile } +C { dg-options "-O" } + IMPLICIT NONE + INTEGER I640,I760,I800 + INTEGER I,ITER,ITMX,LENCM + LOGICAL QDISK,QDW + ASSIGN 801 TO I800 + GOTO I800 + 801 CONTINUE + ASSIGN 761 TO I760 + 761 CONTINUE + DO I=1,LENCM + ENDDO + DO WHILE(ITER.LT.ITMX) + IF(QDW) THEN + ASSIGN 641 to I640 + GOTO I760 + 641 CONTINUE + ENDIF + ENDDO + RETURN + END + |