/// \brief Invert the given condition
Value *StructurizeCFG::invert(Value *Condition) {
// First: Check if it's a constant
- if (Condition == BoolTrue)
- return BoolFalse;
-
- if (Condition == BoolFalse)
- return BoolTrue;
-
- if (Condition == BoolUndef)
- return BoolUndef;
+ if (Constant *C = dyn_cast<Constant>(Condition))
+ return ConstantExpr::getNot(C);
// Second: If the condition is already inverted, return the original value
if (match(Condition, m_Not(m_Value(Condition))))
--- /dev/null
+; RUN: opt -S -o - -structurizecfg < %s | FileCheck %s
+
+; CHECK-LABEL: @invert_constantexpr_condition(
+; CHECK: %tmp5 = or i1 %tmp4, icmp eq (i32 bitcast (float fadd (float undef, float undef) to i32), i32 0)
+; CHECK: [ icmp ne (i32 bitcast (float fadd (float undef, float undef) to i32), i32 0), %bb ]
+define void @invert_constantexpr_condition(i32 %arg, i32 %arg1) #0 {
+bb:
+ %tmp = icmp eq i32 %arg, 0
+ br i1 icmp eq (i32 bitcast (float fadd (float undef, float undef) to i32), i32 0), label %bb2, label %bb6
+
+bb2:
+ br i1 %tmp, label %bb3, label %bb6
+
+bb3:
+ %tmp4 = phi i1 [ %tmp7, %bb6 ], [ undef, %bb2 ]
+ %tmp5 = or i1 %tmp4, icmp eq (i32 bitcast (float fadd (float undef, float undef) to i32), i32 0)
+ br i1 %tmp5, label %bb8, label %bb8
+
+bb6:
+ %tmp7 = icmp slt i32 %arg, %arg1
+ br label %bb3
+
+bb8:
+ ret void
+}
+
+declare i32 @llvm.amdgcn.workitem.id.x() #1
+
+attributes #0 = { nounwind }
+attributes #1 = { nounwind readnone }