Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/test/Analysis/ScalarEvolution/SolveQuadraticEquation.ll

@@ -1,102 +0,0 @@
-; RUN: opt < %s -analyze -scalar-evolution -scalar-evolution-max-iterations=0 | FileCheck %s
-
-; PR1101
-
-@A = weak global [1000 x i32] zeroinitializer, align 32         
-
-define void @test1(i32 %N) {
-entry:
-        %"alloca point" = bitcast i32 0 to i32           ; <i32> [#uses=0]
-        br label %bb3
-
-bb:             ; preds = %bb3
-        %tmp = getelementptr [1000 x i32], [1000 x i32]* @A, i32 0, i32 %i.0          ; <i32*> [#uses=1]
-        store i32 123, i32* %tmp
-        %tmp2 = add i32 %i.0, 1         ; <i32> [#uses=1]
-        br label %bb3
-
-bb3:            ; preds = %bb, %entry
-        %i.0 = phi i32 [ 2, %entry ], [ %tmp2, %bb ]            ; <i32> [#uses=3]
-        %SQ = mul i32 %i.0, %i.0
-        %tmp4 = mul i32 %i.0, 2
-        %tmp5 = sub i32 %SQ, %tmp4
-        %tmp3 = icmp sle i32 %tmp5, 9999          ; <i1> [#uses=1]
-        br i1 %tmp3, label %bb, label %bb5
-
-bb5:            ; preds = %bb3
-        br label %return
-
-return:         ; preds = %bb5
-        ret void
-}
-; CHECK: Determining loop execution counts for: @test1
-; CHECK-NEXT: backedge-taken count is 100
-
-
-; PR10383
-; These next two used to crash.
-
-define void @test2(i1 %cmp, i64 %n) {
-entry:
-  br label %for.body1
-
-for.body1:
-  %a0.08 = phi i64 [ 0, %entry ], [ %inc512, %for.body1 ]
-  %inc512 = add i64 %a0.08, 1
-  br i1 %cmp, label %preheader, label %for.body1
-
-preheader:
-  br label %for.body2
-
-for.body2:
-  %indvar = phi i64 [ 0, %preheader ], [ %indvar.next, %for.body2 ]
-  %tmp111 = add i64 %n, %indvar
-  %tmp114 = mul i64 %a0.08, %indvar
-  %mul542 = mul i64 %tmp114, %tmp111
-  %indvar.next = add i64 %indvar, 1
-  br i1 undef, label %end, label %for.body2
-
-end:
-  ret void
-}
-; CHECK: Determining loop execution counts for: @test2
-
-define i32 @test3() {
-if.then466:
-  br i1 undef, label %for.cond539.preheader, label %for.inc479
-
-for.inc479:
-  %a2.07 = phi i32 [ %add495, %for.inc479 ], [ 0, %if.then466 ]
-  %j.36 = phi i32 [ %inc497, %for.inc479 ], [ undef, %if.then466 ]
-  %mul484 = mul nsw i32 %j.36, %j.36
-  %mul491 = mul i32 %j.36, %j.36
-  %mul493 = mul i32 %mul491, %mul484
-  %add495 = add nsw i32 %mul493, %a2.07
-  %inc497 = add nsw i32 %j.36, 1
-  br i1 undef, label %for.cond539.preheader, label %for.inc479
-
-for.cond539.preheader:
-  unreachable
-}
-; CHECK: Determining loop execution counts for: @test3
-
-; PR13489
-; We used to crash on this too.
-
-define void @test4() {
-entry:
-  br label %for.body
-
-for.body:                                         ; preds = %for.body, %entry
-  %v2.02 = phi i64 [ 2, %entry ], [ %phitmp, %for.body ]
-  %v1.01 = phi i64 [ -2, %entry ], [ %sub1, %for.body ]
-  %sub1 = sub i64 %v1.01, %v2.02
-  %phitmp = add i64 %v2.02, 2
-  %tobool = icmp eq i64 %sub1, %phitmp
-  br i1 %tobool, label %for.end, label %for.body
-
-for.end:                                          ; preds = %for.body
-  ret void
-}
-
-; CHECK: Determining loop execution counts for: @test4