diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/match.pd | 22 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.c-torture/execute/pr103417.c | 11 |
2 files changed, 20 insertions, 13 deletions
diff --git a/gcc/match.pd b/gcc/match.pd index 5adcd6b..39fd77d 100644 --- a/gcc/match.pd +++ b/gcc/match.pd @@ -5214,20 +5214,16 @@ DEFINE_INT_AND_FLOAT_ROUND_FN (RINT) /* Transform comparisons of the form (X & Y) CMP 0 to X CMP2 Z where ~Y + 1 == pow2 and Z = ~Y. */ (for cst (VECTOR_CST INTEGER_CST) - (for cmp (le eq ne ge gt) - icmp (le le gt le gt) - (simplify - (cmp (bit_and:c@2 @0 cst@1) integer_zerop) - (with { tree csts = bitmask_inv_cst_vector_p (@1); } - (switch - (if (csts && TYPE_UNSIGNED (TREE_TYPE (@1)) - && (VECTOR_TYPE_P (TREE_TYPE (@1)) || single_use (@2))) - (icmp @0 { csts; })) - (if (csts && !TYPE_UNSIGNED (TREE_TYPE (@1)) - && (cmp == EQ_EXPR || cmp == NE_EXPR) - && (VECTOR_TYPE_P (TREE_TYPE (@1)) || single_use (@2))) + (for cmp (eq ne) + icmp (le gt) + (simplify + (cmp (bit_and:c@2 @0 cst@1) integer_zerop) + (with { tree csts = bitmask_inv_cst_vector_p (@1); } + (if (csts && (VECTOR_TYPE_P (TREE_TYPE (@1)) || single_use (@2))) + (if (TYPE_UNSIGNED (TREE_TYPE (@1))) + (icmp @0 { csts; }) (with { tree utype = unsigned_type_for (TREE_TYPE (@1)); } - (icmp (convert:utype @0) { csts; })))))))) + (icmp (convert:utype @0) { csts; })))))))) /* -A CMP -B -> B CMP A. */ (for cmp (tcc_comparison) diff --git a/gcc/testsuite/gcc.c-torture/execute/pr103417.c b/gcc/testsuite/gcc.c-torture/execute/pr103417.c new file mode 100644 index 0000000..0fef890 --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/execute/pr103417.c @@ -0,0 +1,11 @@ +/* PR tree-optimization/103417 */ + +struct { int a : 8; int b : 24; } c = { 0, 1 }; + +int +main () +{ + if (c.b && !c.b) + __builtin_abort (); + return 0; +} |