Imported Upstream version 5.18.0.207

Former-commit-id: 3b152f462918d427ce18620a2cbe4f8b79650449

external/llvm/test/Transforms/SimplifyCFG/branch-fold.ll

@@ -1,70 +0,0 @@
-; 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:
-        br i1 %B, label %b, label %c
-b:
-        store i32 123, i32* %P
-        ret void
-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
-}