return SDValue();
// Find all FDIV users of the same divisor.
- SmallVector<SDNode *, 4> Users;
- for (auto *U : N1->uses()) {
+ // Use a set because duplicates may be present in the user list.
+ SetVector<SDNode *> Users;
+ for (auto *U : N1->uses())
if (U->getOpcode() == ISD::FDIV && U->getOperand(1) == N1)
- Users.push_back(U);
- }
+ Users.insert(U);
// Now that we have the actual number of divisor uses, make sure it meets
// the minimum threshold specified by the target.
ret double %ret
}
+define void @PR24141() #0 {
+; CHECK-LABEL: PR24141:
+; CHECK: callq
+; CHECK-NEXT: divsd
+; CHECK-NEXT: jmp
+entry:
+ br label %while.body
+
+while.body:
+ %x.0 = phi double [ undef, %entry ], [ %div, %while.body ]
+ %call = call { double, double } @g(double %x.0)
+ %xv0 = extractvalue { double, double } %call, 0
+ %xv1 = extractvalue { double, double } %call, 1
+ %div = fdiv double %xv0, %xv1
+ br label %while.body
+}
+
+declare { double, double } @g(double)
+
; FIXME: If the backend understands 'arcp', then this attribute is unnecessary.
attributes #0 = { "unsafe-fp-math"="true" }