diff options
Diffstat (limited to 'compiler/optimizing/instruction_simplifier.h')
| -rw-r--r-- | compiler/optimizing/instruction_simplifier.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/compiler/optimizing/instruction_simplifier.h b/compiler/optimizing/instruction_simplifier.h index 98ebaafebc..6f9e1f334e 100644 --- a/compiler/optimizing/instruction_simplifier.h +++ b/compiler/optimizing/instruction_simplifier.h @@ -60,6 +60,19 @@ class InstructionSimplifier : public HOptimization { DISALLOW_COPY_AND_ASSIGN(InstructionSimplifier); }; +// For bitwise operations (And/Or/Xor) with a negated input, try to use +// a negated bitwise instruction. +bool TryMergeNegatedInput(HBinaryOperation* op); + +// Convert +// i1: AND a, b +// SUB a, i1 +// into: +// BIC a, a, b +// +// It also works if `i1` is AND b, a +bool TryMergeWithAnd(HSub* instruction); + } // namespace art #endif // ART_COMPILER_OPTIMIZING_INSTRUCTION_SIMPLIFIER_H_ |