From d7e4f0dbffc772e8f40d2d91ccd517727cfb2267 Mon Sep 17 00:00:00 2001 From: jakub Date: Mon, 17 May 2010 17:24:32 +0000 Subject: [PATCH] PR c++/44108 * decl.c (compute_array_index_type): Call mark_rvalue_use. * c-c++-common/Wunused-var-8.c: New test. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@159497 138bc75d-0d04-0410-961f-82ee72b054a4 --- gcc/cp/ChangeLog | 6 ++++++ gcc/cp/decl.c | 2 ++ gcc/testsuite/ChangeLog | 6 ++++++ gcc/testsuite/c-c++-common/Wunused-var-8.c | 19 +++++++++++++++++++ 4 files changed, 33 insertions(+) create mode 100644 gcc/testsuite/c-c++-common/Wunused-var-8.c diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog index 84b8ae533508..acc111f75696 100644 --- a/gcc/cp/ChangeLog +++ b/gcc/cp/ChangeLog @@ -1,3 +1,9 @@ +2010-05-17 Dodji Seketeli + Jason Merrill + + PR c++/44108 + * decl.c (compute_array_index_type): Call mark_rvalue_use. + 2010-05-15 Jason Merrill * cp-tree.h (TYPE_NOEXCEPT_P): New macro. diff --git a/gcc/cp/decl.c b/gcc/cp/decl.c index 148bcf5d55a0..0636aba01e26 100644 --- a/gcc/cp/decl.c +++ b/gcc/cp/decl.c @@ -7369,6 +7369,8 @@ compute_array_index_type (tree name, tree size) /* The size might be the result of a cast. */ STRIP_TYPE_NOPS (size); + size = mark_rvalue_use (size); + /* It might be a const variable or enumeration constant. */ size = integral_constant_value (size); if (error_operand_p (size)) diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index fcc6968b19db..2d31000e6bf0 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,9 @@ +2010-05-17 Dodji Seketeli + Jason Merrill + + PR c++/44108 + * c-c++-common/Wunused-var-8.c: New test. + 2010-05-17 Jakub Jelinek PR bootstrap/42347 diff --git a/gcc/testsuite/c-c++-common/Wunused-var-8.c b/gcc/testsuite/c-c++-common/Wunused-var-8.c new file mode 100644 index 000000000000..0923b3556625 --- /dev/null +++ b/gcc/testsuite/c-c++-common/Wunused-var-8.c @@ -0,0 +1,19 @@ +/* Origin: PR c++/44108 */ +/* { dg-options "-Wunused" } */ +/* { dg-do compile } */ + +int +foo () +{ + unsigned int M = 2; + const unsigned int M_CONST = 2; + static unsigned int M_STATIC = 2; + static const unsigned int M_STATIC_CONST = 2; + + char n1[M]; + char n2[M_CONST]; + char n3[M_STATIC]; + char n4[M_STATIC_CONST]; + + return sizeof (n1) + sizeof (n2) + sizeof (n3) + sizeof (n4); +} -- 2.47.2