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| author | Richard Guenther <rguenther@suse.de> | 2008-02-27 13:17:17 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2008-02-27 13:17:17 +0000 |
| commit | 7fb52af2ec381cc0f02219f0221042786c1f2cbd (patch) | |
| tree | 31e4bf7768f1626b8eaf53fa5ed4d19b28cb9f34 /gcc | |
| parent | 47d430229389f7c10cdd18317192eb448e2ed989 (diff) | |
| download | gcc-7fb52af2ec381cc0f02219f0221042786c1f2cbd.zip gcc-7fb52af2ec381cc0f02219f0221042786c1f2cbd.tar.gz gcc-7fb52af2ec381cc0f02219f0221042786c1f2cbd.tar.bz2 | |
re PR tree-optimization/25290 (PHI-OPT could be rewritten so that is uses fold)
2008-02-27 Richard Guenther <rguenther@suse.de>
PR middle-end/25290
* fold-const.c (fold_unary): Return the correct argument,
converted to the result type.
* gcc.c-torture/execute/pr35390.c: New testcase.
From-SVN: r132710
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/fold-const.c | 2 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.c-torture/execute/pr35390.c | 13 |
4 files changed, 25 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index c8e74f5..aff90b8 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,11 @@ 2008-02-27 Richard Guenther <rguenther@suse.de> + PR middle-end/25290 + * fold-const.c (fold_unary): Return the correct argument, + converted to the result type. + +2008-02-27 Richard Guenther <rguenther@suse.de> + PR middle-end/34971 * expr.c (expand_expr_real_1): Assert on rotates that operate on partial modes. diff --git a/gcc/fold-const.c b/gcc/fold-const.c index f6a73ef..987acf1 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -8340,7 +8340,7 @@ fold_unary (enum tree_code code, tree type, tree op0) if (TREE_CODE (arg0) == INTEGER_CST) return fold_not_const (arg0, type); else if (TREE_CODE (arg0) == BIT_NOT_EXPR) - return TREE_OPERAND (op0, 0); + return fold_convert (type, TREE_OPERAND (arg0, 0)); /* Convert ~ (-A) to A - 1. */ else if (INTEGRAL_TYPE_P (type) && TREE_CODE (arg0) == NEGATE_EXPR) return fold_build2 (MINUS_EXPR, type, diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 8d5fff7..51196bb 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2008-02-27 Richard Guenther <rguenther@suse.de> + + PR middle-end/25290 + * gcc.c-torture/execute/pr35390.c: New testcase. + 2008-02-27 Samuel Tardieu <sam@rfc1149.net> PR ada/22255 diff --git a/gcc/testsuite/gcc.c-torture/execute/pr35390.c b/gcc/testsuite/gcc.c-torture/execute/pr35390.c new file mode 100644 index 0000000..7103a9b --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/execute/pr35390.c @@ -0,0 +1,13 @@ +extern void abort (void); + +unsigned int foo (int n) +{ + return ~((unsigned int)~n); +} + +int main() +{ + if (foo(0) != 0) + abort (); + return 0; +} |