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| author | ebotcazou <ebotcazou@138bc75d-0d04-0410-961f-82ee72b054a4> | 2016-11-13 18:20:25 +0000 |
|---|---|---|
| committer | ebotcazou <ebotcazou@138bc75d-0d04-0410-961f-82ee72b054a4> | 2016-11-13 18:20:25 +0000 |
| commit | 963da3c6dd526c8c37d91b6e404b08598a001cf0 (patch) | |
| tree | b54385029fbc200a70eed0721cc800d5ee426c1d | |
| parent | 9ed6bb1c468f6858f694b316d2b217eab87d1bb5 (diff) | |
| download | gcc-963da3c6dd526c8c37d91b6e404b08598a001cf0.tar.gz | |
* gcc-interface/decl.c (annotate_value) <INTEGER_CST>: Deal specially
with negative constants.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@242360 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ada/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/ada/gcc-interface/decl.c | 8 |
2 files changed, 13 insertions, 0 deletions
diff --git a/gcc/ada/ChangeLog b/gcc/ada/ChangeLog index f896d14820f..b3ac97c67c8 100644 --- a/gcc/ada/ChangeLog +++ b/gcc/ada/ChangeLog @@ -1,5 +1,10 @@ 2016-11-13 Eric Botcazou <ebotcazou@adacore.com> + * gcc-interface/decl.c (annotate_value) <INTEGER_CST>: Deal specially + with negative constants. + +2016-11-13 Eric Botcazou <ebotcazou@adacore.com> + * gcc-interface/utils2.c (gnat_protect_expr): Also protect only the address if the expression is the component of a dereference. Do not use a reference type for the final temporary reference. diff --git a/gcc/ada/gcc-interface/decl.c b/gcc/ada/gcc-interface/decl.c index 3aaaaca73ed..b6fce3ecf35 100644 --- a/gcc/ada/gcc-interface/decl.c +++ b/gcc/ada/gcc-interface/decl.c @@ -8022,6 +8022,14 @@ annotate_value (tree gnu_size) switch (TREE_CODE (gnu_size)) { case INTEGER_CST: + /* For negative values, build NEGATE_EXPR of the opposite. Such values + can appear for discriminants in expressions for variants. */ + if (tree_int_cst_sgn (gnu_size) < 0) + { + tree t = wide_int_to_tree (sizetype, wi::neg (gnu_size)); + return annotate_value (build1 (NEGATE_EXPR, sizetype, t)); + } + return TREE_OVERFLOW (gnu_size) ? No_Uint : UI_From_gnu (gnu_size); case COMPONENT_REF: |