diff options
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/tree-ssa-ccp.c | 14 |
2 files changed, 16 insertions, 3 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 2842a7f..5785081 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,10 @@ 2019-09-18 Richard Sandiford <richard.sandiford@arm.com> + * tree-ssa-ccp.c (get_value_for_expr): Check whether CONSTANTs + are INTEGER_CSTs. + +2019-09-18 Richard Sandiford <richard.sandiford@arm.com> + * gimplify.c (gimplify_decl_expr): Use poly_int_tree_p instead of checking specifically for INTEGER_CST. diff --git a/gcc/tree-ssa-ccp.c b/gcc/tree-ssa-ccp.c index 5af3810..311918b 100644 --- a/gcc/tree-ssa-ccp.c +++ b/gcc/tree-ssa-ccp.c @@ -615,9 +615,17 @@ get_value_for_expr (tree expr, bool for_bits_p) val.mask = -1; } if (for_bits_p - && val.lattice_val == CONSTANT - && TREE_CODE (val.value) == ADDR_EXPR) - val = get_value_from_alignment (val.value); + && val.lattice_val == CONSTANT) + { + if (TREE_CODE (val.value) == ADDR_EXPR) + val = get_value_from_alignment (val.value); + else if (TREE_CODE (val.value) != INTEGER_CST) + { + val.lattice_val = VARYING; + val.value = NULL_TREE; + val.mask = -1; + } + } /* Fall back to a copy value. */ if (!for_bits_p && val.lattice_val == VARYING |