diff options
| author | Nathan Sidwell <nathan@codesourcery.com> | 2002-09-16 20:13:07 +0000 |
|---|---|---|
| committer | Nathan Sidwell <nathan@gcc.gnu.org> | 2002-09-16 20:13:07 +0000 |
| commit | 85341ddd99c46d8fcc85c1cebc6902310c4f02a7 (patch) | |
| tree | 28595a498cea666dc9365125cb358fc6b2ed65e7 /gcc | |
| parent | 3ec83083bf1e0fa4a923a4aa1269375893afac7b (diff) | |
| download | gcc-85341ddd99c46d8fcc85c1cebc6902310c4f02a7.zip gcc-85341ddd99c46d8fcc85c1cebc6902310c4f02a7.tar.gz gcc-85341ddd99c46d8fcc85c1cebc6902310c4f02a7.tar.bz2 | |
re PR c++/7640 (g++ 3.3 ICE: SEGV in integer_zerop)
.: PR c++/7640
* c-semantics.c (genrtl_do_stmt): Cope with NULL cond.
testsuite:
* g++.dg/other/do1.C: New test.
From-SVN: r57212
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/c-semantics.c | 5 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 2 | ||||
| -rw-r--r-- | gcc/testsuite/g++.dg/other/do1.C | 12 |
4 files changed, 21 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index aafdefb..7aaf2c7 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +2002-09-16 Nathan Sidwell <nathan@codesourcery.com> + + * c-semantics.c (genrtl_do_stmt): Cope with NULL cond. + 2002-09-16 Geoffrey Keating <geoffk@redhat.com> * config/rs6000/rs6000.c (build_mask64_2_operands): Suppress diff --git a/gcc/c-semantics.c b/gcc/c-semantics.c index 35cb559..a4d11f8 100644 --- a/gcc/c-semantics.c +++ b/gcc/c-semantics.c @@ -447,8 +447,9 @@ genrtl_do_stmt (t) /* Recognize the common special-case of do { ... } while (0) and do not emit the loop widgetry in this case. In particular this avoids cluttering the rtl with dummy loop notes, which can affect - alignment of adjacent labels. */ - if (integer_zerop (cond)) + alignment of adjacent labels. COND can be NULL due to parse + errors. */ + if (!cond || integer_zerop (cond)) { expand_start_null_loop (); expand_stmt (DO_BODY (t)); diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 63b882f..b2e49b0 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,5 +1,7 @@ 2002-09-16 Nathan Sidwell <nathan@codesourcery.com> + * g++.dg/other/do1.C: New test. + * g++.dg/template/subst1.C: New test. 2002-09-16 Steve Ellcey <sje@cup.hp.com> diff --git a/gcc/testsuite/g++.dg/other/do1.C b/gcc/testsuite/g++.dg/other/do1.C new file mode 100644 index 0000000..79e55c0 --- /dev/null +++ b/gcc/testsuite/g++.dg/other/do1.C @@ -0,0 +1,12 @@ +// { dg-do compile } + +// Copyright (C) 2002 Free Software Foundation, Inc. +// Contributed by Nathan Sidwell 16 Sep 2002 <nathan@codesourcery.com> + +// PR 7640. ICE. + +void init () +{ + do { } while (0) + obj = 0; +} |