-; RUN: llvm-as < %s | opt -simplifycfg | llvm-dis | grep {br i1} | count 1
+; RUN: opt < %s -simplifycfg -S | FileCheck %s
define void @test(i32* %P, i32* %Q, i1 %A, i1 %B) {
+; CHECK: test
+; CHECK: br i1
+; CHECK-NOT: br i1
+; CHECK: ret
+; CHECK: ret
+
+entry:
br i1 %A, label %a, label %b
-a: ; preds = %0
+a:
br i1 %B, label %b, label %c
-b: ; preds = %a, %0
+b:
store i32 123, i32* %P
ret void
-c: ; preds = %a
+c:
ret void
}
+; rdar://10554090
+define zeroext i1 @test2(i64 %i0, i64 %i1) nounwind uwtable readonly ssp {
+entry:
+; CHECK: test2
+; CHECK: br i1
+ %and.i.i = and i64 %i0, 281474976710655
+ %and.i11.i = and i64 %i1, 281474976710655
+ %or.cond = icmp eq i64 %and.i.i, %and.i11.i
+ br i1 %or.cond, label %c, label %a
+
+a:
+; CHECK: br
+ %shr.i4.i = lshr i64 %i0, 48
+ %and.i5.i = and i64 %shr.i4.i, 32767
+ %shr.i.i = lshr i64 %i1, 48
+ %and.i2.i = and i64 %shr.i.i, 32767
+ %cmp9.i = icmp ult i64 %and.i5.i, %and.i2.i
+ br i1 %cmp9.i, label %c, label %b
+
+b:
+; CHECK-NOT: br
+ %shr.i13.i9 = lshr i64 %i1, 48
+ %and.i14.i10 = and i64 %shr.i13.i9, 32767
+ %shr.i.i11 = lshr i64 %i0, 48
+ %and.i11.i12 = and i64 %shr.i.i11, 32767
+ %phitmp = icmp uge i64 %and.i14.i10, %and.i11.i12
+ br label %c
+
+c:
+ %o2 = phi i1 [ false, %a ], [ %phitmp, %b ], [ false, %entry ]
+ ret i1 %o2
+}
+
+; PR13180
+define void @pr13180(i8 %p) {
+entry:
+ %tobool = icmp eq i8 %p, 0
+ br i1 %tobool, label %cond.false, label %cond.true
+
+cond.true: ; preds = %entry
+ br label %cond.end
+
+cond.false: ; preds = %entry
+ %phitmp = icmp eq i8 %p, 0
+ br label %cond.end
+
+cond.end: ; preds = %cond.false, %cond.true
+ %cond = phi i1 [ undef, %cond.true ], [ %phitmp, %cond.false ]
+ unreachable
+}