[25/77] Use is_a <scalar_int_mode> for bitmask optimisations
Explicitly check for scalar_int_mode in code that maps arithmetic
to full-mode bit operations. These operations wouldn't work correctly
for vector modes, for example. In many cases this is enforced also by
checking whether an operand is CONST_INT_P, but there were other cases
where the condition is more indirect.
2017-08-30 Richard Sandiford <richard.sandiford@linaro.org>
Alan Hayward <alan.hayward@arm.com>
David Sherwood <david.sherwood@arm.com>
gcc/
* combine.c (combine_simplify_rtx): Add checks for
is_a <scalar_int_mode>.
(simplify_if_then_else): Likewise.
(make_field_assignment): Likewise.
(simplify_comparison): Likewise.
* ifcvt.c (noce_try_bitop): Likewise.
* loop-invariant.c (canonicalize_address_mult): Likewise.
* simplify-rtx.c (simplify_unary_operation_1): Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@251477 138bc75d-0d04-0410-961f-82ee72b054a4