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| author | Ben Cheng <bccheng@google.com> | 2013-08-05 15:18:29 -0700 |
|---|---|---|
| committer | Ben Cheng <bccheng@google.com> | 2013-08-05 16:03:48 -0700 |
| commit | 32fce3edda831e36ee484406c39dffbe0230f257 (patch) | |
| tree | 733b1b5398304b260a4ee3d5d9b17da5038c5486 /gcc-4.8/gcc/tree-vrp.c | |
| parent | e85b9ca2afe8edbb9fa99c6ce2cc4e52dce18c21 (diff) | |
| download | toolchain_gcc-32fce3edda831e36ee484406c39dffbe0230f257.tar.gz toolchain_gcc-32fce3edda831e36ee484406c39dffbe0230f257.tar.bz2 toolchain_gcc-32fce3edda831e36ee484406c39dffbe0230f257.zip | |
[4.8] Merge GCC 4.8.1
Change-Id: Ic8a60b7563f5172440fd40788605163a0cca6e30
Diffstat (limited to 'gcc-4.8/gcc/tree-vrp.c')
| -rw-r--r-- | gcc-4.8/gcc/tree-vrp.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/gcc-4.8/gcc/tree-vrp.c b/gcc-4.8/gcc/tree-vrp.c index a38b14d49..0b8fdf988 100644 --- a/gcc-4.8/gcc/tree-vrp.c +++ b/gcc-4.8/gcc/tree-vrp.c @@ -2837,7 +2837,7 @@ extract_range_from_binary_expr_1 (value_range_t *vr, if (uns) { - low_bound = bound; + low_bound = bound.zext (prec); high_bound = complement.zext (prec); if (tree_to_double_int (vr0.max).ult (low_bound)) { @@ -4895,7 +4895,13 @@ register_edge_assert_for_2 (tree name, edge e, gimple_stmt_iterator bsi, new_comp_code = comp_code == EQ_EXPR ? LE_EXPR : GT_EXPR; } else if (comp_code == LT_EXPR || comp_code == GE_EXPR) - new_val = val2; + { + double_int minval + = double_int::min_value (prec, TYPE_UNSIGNED (TREE_TYPE (val))); + new_val = val2; + if (minval == tree_to_double_int (new_val)) + new_val = NULL_TREE; + } else { double_int maxval |