diff options
| -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 aafdefb730a..7aaf2c76cf2 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 35cb559e6f8..a4d11f8e606 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 63b882ffbae..b2e49b01abc 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 00000000000..79e55c0cd51 --- /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; +} |