| commit | 47d2cd73185a207ecc90970a73f5b38b114c48c2 | |
| author | msebor <msebor@138bc75d-0d04-0410-961f-82ee72b054a4> | |
| Mon, 9 Jul 2018 20:33:48 +0000 (9 20:33 +0000) | ||
| committer | msebor <msebor@138bc75d-0d04-0410-961f-82ee72b054a4> | |
| Mon, 9 Jul 2018 20:33:48 +0000 (9 20:33 +0000) | ||
| tree | a540d226c0eeee38bd5ea06483ae688c1e0c070e | treesnapshot (tar.gz zip) |
| parent | 449d9e9b812f615dcb5b2a665663f4991c29e697 | commitdiff |
PR middle-end/77357 - strlen of constant strings not folded
gcc/ChangeLog:
PR middle-end/77357
PR middle-end/86428
* builtins.c (c_strlen): Avoid out-of-bounds warnings when
accessing implicitly initialized array elements.
* expr.c (string_constant): Handle string initializers of
character arrays within aggregates.
* gimple-fold.c (fold_array_ctor_reference): Add argument.
Store element offset. As a special case, handle zero size.
(fold_nonarray_ctor_reference): Same.
(fold_ctor_reference): Add argument. Store subobject offset.
* gimple-fold.h (fold_ctor_reference): Add argument.
gcc/testsuite/ChangeLog:
PR middle-end/77357
* gcc.dg/strlenopt-49.c: New test.
* gcc.dg/strlenopt-50.c: New test.
* gcc.dg/strlenopt-51.c: New test.
* gcc.dg/strlenopt-52.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@262522 138bc75d-0d04-0410-961f-82ee72b054a4
gcc/ChangeLog:
PR middle-end/77357
PR middle-end/86428
* builtins.c (c_strlen): Avoid out-of-bounds warnings when
accessing implicitly initialized array elements.
* expr.c (string_constant): Handle string initializers of
character arrays within aggregates.
* gimple-fold.c (fold_array_ctor_reference): Add argument.
Store element offset. As a special case, handle zero size.
(fold_nonarray_ctor_reference): Same.
(fold_ctor_reference): Add argument. Store subobject offset.
* gimple-fold.h (fold_ctor_reference): Add argument.
gcc/testsuite/ChangeLog:
PR middle-end/77357
* gcc.dg/strlenopt-49.c: New test.
* gcc.dg/strlenopt-50.c: New test.
* gcc.dg/strlenopt-51.c: New test.
* gcc.dg/strlenopt-52.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@262522 138bc75d-0d04-0410-961f-82ee72b054a4
13 files changed:
| gcc/ChangeLog | diffblobblamehistory | |
| gcc/builtins.c | diffblobblamehistory | |
| gcc/expr.c | diffblobblamehistory | |
| gcc/fold-const.c | diffblobblamehistory | |
| gcc/fold-const.h | diffblobblamehistory | |
| gcc/gimple-fold.c | diffblobblamehistory | |
| gcc/gimple-fold.h | diffblobblamehistory | |
| gcc/testsuite/ChangeLog | diffblobblamehistory | |
| gcc/testsuite/gcc.c-torture/execute/builtins/strlen-3.c | diffblobblamehistory | |
| gcc/testsuite/gcc.dg/strlenopt-49.c | [new file with mode: 0644] | blob |
| gcc/testsuite/gcc.dg/strlenopt-50.c | [new file with mode: 0644] | blob |
| gcc/testsuite/gcc.dg/strlenopt-51.c | [new file with mode: 0644] | blob |
| gcc/testsuite/gcc.dg/strlenopt-52.c | [new file with mode: 0644] | blob |