diff options
| -rw-r--r-- | gcc/match.pd | 4 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/fold-convlshift-3.c | 8 |
2 files changed, 11 insertions, 1 deletions
diff --git a/gcc/match.pd b/gcc/match.pd index 978a1b0..e5bbb12 100644 --- a/gcc/match.pd +++ b/gcc/match.pd @@ -3389,7 +3389,9 @@ DEFINE_INT_AND_FLOAT_ROUND_FN (RINT) the form that minimizes the number of conversions. */ (simplify (convert (lshift:s@0 (convert:s@1 @2) INTEGER_CST@3)) - (if (tree_nop_conversion_p (type, TREE_TYPE (@0)) + (if (INTEGRAL_TYPE_P (type) + && !POINTER_TYPE_P (type) + && tree_nop_conversion_p (type, TREE_TYPE (@0)) && INTEGRAL_TYPE_P (TREE_TYPE (@2)) && TYPE_PRECISION (TREE_TYPE (@2)) <= TYPE_PRECISION (type)) (lshift (convert @2) @3))) diff --git a/gcc/testsuite/gcc.dg/fold-convlshift-3.c b/gcc/testsuite/gcc.dg/fold-convlshift-3.c new file mode 100644 index 0000000..8d01191 --- /dev/null +++ b/gcc/testsuite/gcc.dg/fold-convlshift-3.c @@ -0,0 +1,8 @@ +/* PR middle-end/102029 */ +/* { dg-do compile } */ +/* { dg-options "-O2" } */ +int * +foo (const __PTRDIFF_TYPE__ l) +{ + return (int *) (l << 2); +} |