diff options
| -rw-r--r-- | gcc/expr.cc | 9 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.c-torture/execute/pr111863-1.c | 16 |
2 files changed, 21 insertions, 4 deletions
diff --git a/gcc/expr.cc b/gcc/expr.cc index 8aed3fc..763bd82 100644 --- a/gcc/expr.cc +++ b/gcc/expr.cc @@ -13206,14 +13206,15 @@ do_store_flag (sepops ops, rtx target, machine_mode mode) || integer_pow2p (arg1)) && (TYPE_PRECISION (ops->type) != 1 || TYPE_UNSIGNED (ops->type))) { - wide_int nz = tree_nonzero_bits (arg0); - gimple *srcstmt = get_def_for_expr (arg0, BIT_AND_EXPR); + tree narg0 = arg0; + wide_int nz = tree_nonzero_bits (narg0); + gimple *srcstmt = get_def_for_expr (narg0, BIT_AND_EXPR); /* If the defining statement was (x & POW2), then use that instead of the non-zero bits. */ if (srcstmt && integer_pow2p (gimple_assign_rhs2 (srcstmt))) { nz = wi::to_wide (gimple_assign_rhs2 (srcstmt)); - arg0 = gimple_assign_rhs1 (srcstmt); + narg0 = gimple_assign_rhs1 (srcstmt); } if (wi::popcount (nz) == 1 @@ -13227,7 +13228,7 @@ do_store_flag (sepops ops, rtx target, machine_mode mode) type = lang_hooks.types.type_for_mode (mode, unsignedp); return expand_single_bit_test (loc, tcode, - arg0, + narg0, bitnum, type, target, mode); } } diff --git a/gcc/testsuite/gcc.c-torture/execute/pr111863-1.c b/gcc/testsuite/gcc.c-torture/execute/pr111863-1.c new file mode 100644 index 0000000..4e27fe6 --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/execute/pr111863-1.c @@ -0,0 +1,16 @@ +/* { dg-options " -fno-tree-ccp -fno-tree-dominator-opts -fno-tree-vrp" } */ + +__attribute__((noipa)) +int f(int a) +{ + a &= 2; + return a != 1; +} +int main(void) +{ + int t = f(1); + if (!t) + __builtin_abort(); + __builtin_printf("%d\n",t); + return 0; +} |