if (BinaryOperator *BO = dyn_cast<BinaryOperator>(V))
if (BO->getOpcode() == Instruction::Add ||
BO->getOpcode() == Instruction::Sub)
- if (isa<Constant>(BO->getOperand(0)) ||
- isa<Constant>(BO->getOperand(1)))
+ if (match(BO, PatternMatch::m_c_BinOp(PatternMatch::m_Value(),
+ PatternMatch::m_ImmConstant())))
return WillInvertAllUses;
// Selects with invertible operands are freely invertible
%sub = sub nsw i32 %v3, %cond
ret i32 %sub
}
+
+@g = extern_weak global i32
+define void @pr50370(i32 %x) {
+; CHECK-LABEL: @pr50370(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[X:%.*]], 1
+; CHECK-NEXT: [[B15:%.*]] = srem i32 ashr (i32 65536, i32 or (i32 zext (i1 icmp eq (i32* @g, i32* null) to i32), i32 65537)), [[XOR]]
+; CHECK-NEXT: [[B22:%.*]] = add nsw i32 [[B15]], sdiv (i32 or (i32 zext (i1 icmp eq (i32* @g, i32* null) to i32), i32 65537), i32 2147483647)
+; CHECK-NEXT: [[B14:%.*]] = srem i32 ashr (i32 65536, i32 or (i32 zext (i1 icmp eq (i32* @g, i32* null) to i32), i32 65537)), [[B22]]
+; CHECK-NEXT: [[B12:%.*]] = add nuw nsw i32 [[B15]], ashr (i32 65536, i32 or (i32 zext (i1 icmp eq (i32* @g, i32* null) to i32), i32 65537))
+; CHECK-NEXT: [[B8:%.*]] = shl i32 sdiv (i32 or (i32 zext (i1 icmp eq (i32* @g, i32* null) to i32), i32 65537), i32 2147483647), [[B14]]
+; CHECK-NEXT: [[B2:%.*]] = xor i32 [[B12]], [[B8]]
+; CHECK-NEXT: [[B:%.*]] = xor i32 [[B2]], -1
+; CHECK-NEXT: store i32 [[B]], i32* undef, align 4
+; CHECK-NEXT: ret void
+;
+entry:
+ %xor = xor i32 %x, 1
+ %or4 = or i32 or (i32 zext (i1 icmp eq (i32* @g, i32* null) to i32), i32 1), 65536
+ %B6 = ashr i32 65536, %or4
+ %B15 = srem i32 %B6, %xor
+ %B20 = sdiv i32 %or4, 2147483647
+ %B22 = add i32 %B15, %B20
+ %B14 = srem i32 %B6, %B22
+ %B12 = add i32 %B15, %B6
+ %B8 = shl i32 %B20, %B14
+ %B2 = xor i32 %B12, %B8
+ %B3 = or i32 %B12, undef
+ %B = xor i32 %B2, %B3
+ store i32 %B, i32* undef, align 4
+ ret void
+}