diff options
| author | Jakub Jelinek <jakub@redhat.com> | 2016-06-30 10:52:43 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2016-06-30 10:52:43 +0200 |
| commit | 205cccc7c8ed017684b946dbfef48b9b013c5c51 (patch) | |
| tree | b9c50c2ea116fc10568c7c63dc4c245ba9e28da1 /gcc | |
| parent | 1bcf319ef895a51ad95db857ff1a457485965689 (diff) | |
| download | gcc-205cccc7c8ed017684b946dbfef48b9b013c5c51.zip gcc-205cccc7c8ed017684b946dbfef48b9b013c5c51.tar.gz gcc-205cccc7c8ed017684b946dbfef48b9b013c5c51.tar.bz2 | |
re PR middle-end/71693 (ICE: verify_gimple failed (type mismatch in shift expression, -O0, -O1, -O2, -O3))
PR middle-end/71693
* fold-const.c (fold_binary_loc) <case RROTATE_EXPR>: Cast
TREE_OPERAND (arg0, 0) and TREE_OPERAND (arg0, 1) to type
first when permuting bitwise operation with rotate. Cast
TREE_OPERAND (arg0, 0) to type when cancelling two rotations.
* gcc.c-torture/compile/pr71693.c: New test.
From-SVN: r237875
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 8 | ||||
| -rw-r--r-- | gcc/fold-const.c | 16 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.c-torture/compile/pr71693.c | 10 |
4 files changed, 33 insertions, 6 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 308fcc8..8d00f72 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,11 @@ +2016-06-30 Jakub Jelinek <jakub@redhat.com> + + PR middle-end/71693 + * fold-const.c (fold_binary_loc) <case RROTATE_EXPR>: Cast + TREE_OPERAND (arg0, 0) and TREE_OPERAND (arg0, 1) to type + first when permuting bitwise operation with rotate. Cast + TREE_OPERAND (arg0, 0) to type when cancelling two rotations. + 2016-06-29 David Malcolm <dmalcolm@redhat.com> * opts.c (handle_param): Use find_param_fuzzy to offer suggestions diff --git a/gcc/fold-const.c b/gcc/fold-const.c index 3b9500d..f97b8bf 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -10294,11 +10294,15 @@ fold_binary_loc (location_t loc, || TREE_CODE (arg0) == BIT_IOR_EXPR || TREE_CODE (arg0) == BIT_XOR_EXPR) && TREE_CODE (TREE_OPERAND (arg0, 1)) == INTEGER_CST) - return fold_build2_loc (loc, TREE_CODE (arg0), type, - fold_build2_loc (loc, code, type, - TREE_OPERAND (arg0, 0), arg1), - fold_build2_loc (loc, code, type, - TREE_OPERAND (arg0, 1), arg1)); + { + tree arg00 = fold_convert_loc (loc, type, TREE_OPERAND (arg0, 0)); + tree arg01 = fold_convert_loc (loc, type, TREE_OPERAND (arg0, 1)); + return fold_build2_loc (loc, TREE_CODE (arg0), type, + fold_build2_loc (loc, code, type, + arg00, arg1), + fold_build2_loc (loc, code, type, + arg01, arg1)); + } /* Two consecutive rotates adding up to the some integer multiple of the precision of the type can be ignored. */ @@ -10307,7 +10311,7 @@ fold_binary_loc (location_t loc, && TREE_CODE (TREE_OPERAND (arg0, 1)) == INTEGER_CST && wi::umod_trunc (wi::add (arg1, TREE_OPERAND (arg0, 1)), prec) == 0) - return TREE_OPERAND (arg0, 0); + return fold_convert_loc (loc, type, TREE_OPERAND (arg0, 0)); return NULL_TREE; diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 8069c67..1828ca6 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2016-06-30 Jakub Jelinek <jakub@redhat.com> + + PR middle-end/71693 + * gcc.c-torture/compile/pr71693.c: New test. + 2016-06-29 David Malcolm <dmalcolm@redhat.com> * gcc.dg/spellcheck-params.c: New testcase. diff --git a/gcc/testsuite/gcc.c-torture/compile/pr71693.c b/gcc/testsuite/gcc.c-torture/compile/pr71693.c new file mode 100644 index 0000000..fc9249c --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/compile/pr71693.c @@ -0,0 +1,10 @@ +/* PR middle-end/71693 */ + +unsigned short v; + +void +foo (int x) +{ + v = ((((unsigned short) (0x0001 | (x & 0x0070) | 0x0100) & 0x00ffU) << 8) + | (((unsigned short) (0x0001 | (x & 0x0070) | 0x0100) >> 8) & 0x00ffU)); +} |