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author | Patrick Palka <ppalka@gcc.gnu.org> | 2015-12-18 23:16:33 +0000 |
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committer | Patrick Palka <ppalka@gcc.gnu.org> | 2015-12-18 23:16:33 +0000 |
commit | 46ab17dbae559b0823d43f6f8ffb12f9dc0d10d5 (patch) | |
tree | d70634f8a7d6de99b9abe294ea742c5f7f0cd04b /gcc | |
parent | a49de7a463519e8e3c7e903caef9e78604fd637d (diff) | |
download | gcc-46ab17dbae559b0823d43f6f8ffb12f9dc0d10d5.zip gcc-46ab17dbae559b0823d43f6f8ffb12f9dc0d10d5.tar.gz gcc-46ab17dbae559b0823d43f6f8ffb12f9dc0d10d5.tar.bz2 |
Fix PR c++/68978 (bogus error: lvalue required as left operand of assignment)
gcc/cp/ChangeLog:
PR c++/68978
* tree.c (lvalue_kind) [MODOP_EXPR]: New case.
gcc/testsuite/ChangeLog:
PR c++/68978
* g++.dg/template/pr68978.C: New test.
From-SVN: r231841
Diffstat (limited to 'gcc')
-rw-r--r-- | gcc/cp/ChangeLog | 5 | ||||
-rw-r--r-- | gcc/cp/tree.c | 6 | ||||
-rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
-rw-r--r-- | gcc/testsuite/g++.dg/template/pr68978.C | 39 |
4 files changed, 55 insertions, 0 deletions
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog index d471721..9b8c2ff 100644 --- a/gcc/cp/ChangeLog +++ b/gcc/cp/ChangeLog @@ -1,3 +1,8 @@ +2015-12-18 Patrick Palka <ppalka@gcc.gnu.org> + + PR c++/68978 + * tree.c (lvalue_kind) [MODOP_EXPR]: New case. + 2015-12-18 Paolo Carlini <paolo.carlini@oracle.com> PR c++/67592 diff --git a/gcc/cp/tree.c b/gcc/cp/tree.c index ae176d0..250fe27 100644 --- a/gcc/cp/tree.c +++ b/gcc/cp/tree.c @@ -185,6 +185,12 @@ lvalue_kind (const_tree ref) op2_lvalue_kind = lvalue_kind (TREE_OPERAND (ref, 2)); break; + case MODOP_EXPR: + /* We expect to see unlowered MODOP_EXPRs only during + template processing. */ + gcc_assert (processing_template_decl); + return clk_ordinary; + case MODIFY_EXPR: case TYPEID_EXPR: return clk_ordinary; diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index ceba598..20ac322 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2015-12-18 Patrick Palka <ppalka@gcc.gnu.org> + + PR c++/68978 + * g++.dg/template/pr68978.C: New test. + 2015-12-18 Jakub Jelinek <jakub@redhat.com> PR debug/68860 diff --git a/gcc/testsuite/g++.dg/template/pr68978.C b/gcc/testsuite/g++.dg/template/pr68978.C new file mode 100644 index 0000000..1904532 --- /dev/null +++ b/gcc/testsuite/g++.dg/template/pr68978.C @@ -0,0 +1,39 @@ +// PR c++/68978 + +int i = 0, c = 0, radix = 10, max = 0x7fffffff; + +template <typename T> int toi_1() { + if (max < ((i *= radix) += c)) + return 0; + return i; +} + +template <typename T> int toi_2() { + if (max < ((i = radix) = c)) + return 0; + return i; +} + +template <typename T> int toi_3() { + if (max < ((i = radix) += c)) + return 0; + return i; +} + +template <typename T> int toi_4() { + if (max < ((i += radix) = c)) + return 0; + return i; +} + +template <typename T> int toi_5() { + if (max < (((i = radix) += (c += 5)) *= 30)) + return 0; + return i; +} + +int x = toi_1<int> (); +int y = toi_2<int> (); +int z = toi_3<int> (); +int w = toi_4<int> (); +int r = toi_5<int> (); |