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| author | Andrew Stubbs <ams@baylibre.com> | 2024-02-22 15:41:00 +0000 |
|---|---|---|
| committer | Andrew Stubbs <ams@baylibre.com> | 2024-03-04 15:39:02 +0000 |
| commit | 77eb86be8841989651b3150a020dd1a95910cc00 (patch) | |
| tree | 224f200a1925178ff144b02b4119a17e24fc76ab /gcc/expr.cc | |
| parent | 71244316cf714725930c2de61c79d635238595bf (diff) | |
| download | gcc-77eb86be8841989651b3150a020dd1a95910cc00.zip gcc-77eb86be8841989651b3150a020dd1a95910cc00.tar.gz gcc-77eb86be8841989651b3150a020dd1a95910cc00.tar.bz2 | |
vect: Fix integer overflow calculating mask
The masks and bitvectors were broken when nunits==32 on hosts where int is
32-bit.
gcc/ChangeLog:
* dojump.cc (do_compare_and_jump): Use full-width integers for shifts.
* expr.cc (store_constructor): Likewise.
(do_store_flag): Likewise.
Diffstat (limited to 'gcc/expr.cc')
| -rw-r--r-- | gcc/expr.cc | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/gcc/expr.cc b/gcc/expr.cc index 8d34d02..f7d7452 100644 --- a/gcc/expr.cc +++ b/gcc/expr.cc @@ -7879,8 +7879,8 @@ store_constructor (tree exp, rtx target, int cleared, poly_int64 size, auto nunits = TYPE_VECTOR_SUBPARTS (type).to_constant (); if (maybe_ne (GET_MODE_PRECISION (mode), nunits)) tmp = expand_binop (mode, and_optab, tmp, - GEN_INT ((1 << nunits) - 1), target, - true, OPTAB_WIDEN); + GEN_INT ((HOST_WIDE_INT_1U << nunits) - 1), + target, true, OPTAB_WIDEN); if (tmp != target) emit_move_insn (target, tmp); break; @@ -13707,11 +13707,11 @@ do_store_flag (sepops ops, rtx target, machine_mode mode) { gcc_assert (code == EQ || code == NE); op0 = expand_binop (mode, and_optab, op0, - GEN_INT ((1 << nunits) - 1), NULL_RTX, - true, OPTAB_WIDEN); + GEN_INT ((HOST_WIDE_INT_1U << nunits) - 1), + NULL_RTX, true, OPTAB_WIDEN); op1 = expand_binop (mode, and_optab, op1, - GEN_INT ((1 << nunits) - 1), NULL_RTX, - true, OPTAB_WIDEN); + GEN_INT ((HOST_WIDE_INT_1U << nunits) - 1), + NULL_RTX, true, OPTAB_WIDEN); } if (target == 0) |