derek.holloway
7502bf64a4
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93 lines
4.1 KiB
LLVM
93 lines
4.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py UTC_ARGS: --version 5
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; RUN: opt < %s -disable-output "-passes=print<scalar-evolution>" 2>&1 | FileCheck %s
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define void @test1(ptr %x, ptr %y) {
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; CHECK-LABEL: 'test1'
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; CHECK-NEXT: Classifying expressions for: @test1
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; CHECK-NEXT: %v1.0 = phi i32 [ 0, %entry ], [ %k.0, %if.end ]
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; CHECK-NEXT: --> {0,+,1}<nuw><nsw><%for.cond> U: [0,7) S: [0,7) Exits: 6 LoopDispositions: { %for.cond: Computable }
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; CHECK-NEXT: %add = add nsw i32 %v1.0, 1
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; CHECK-NEXT: --> {1,+,1}<nuw><nsw><%for.cond> U: [1,8) S: [1,8) Exits: 7 LoopDispositions: { %for.cond: Computable }
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; CHECK-NEXT: %add6 = add nsw i32 %v1.0, 1
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; CHECK-NEXT: --> {1,+,1}<nuw><nsw><%for.cond> U: [1,8) S: [1,8) Exits: 7 LoopDispositions: { %for.cond: Computable }
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; CHECK-NEXT: %k.0 = phi i32 [ %add, %if.then ], [ %add6, %if.else ]
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; CHECK-NEXT: --> {1,+,1}<nuw><nsw><%for.cond> U: [1,8) S: [1,8) Exits: 7 LoopDispositions: { %for.cond: Computable }
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; CHECK-NEXT: Determining loop execution counts for: @test1
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; CHECK-NEXT: Loop %for.cond: backedge-taken count is i32 6
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; CHECK-NEXT: Loop %for.cond: constant max backedge-taken count is i32 6
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; CHECK-NEXT: Loop %for.cond: symbolic max backedge-taken count is i32 6
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; CHECK-NEXT: Loop %for.cond: Trip multiple is 7
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;
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entry:
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br label %for.cond
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for.cond: ; preds = %6, %0
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%v1.0 = phi i32 [ 0, %entry ], [ %k.0, %if.end ]
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%cmp = icmp slt i32 %v1.0, 6
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br i1 %cmp, label %for.body, label %exit
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for.body: ; preds = %1
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%cmp3 = icmp slt i32 %v1.0, 2
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br i1 %cmp3, label %if.then, label %if.else
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if.then: ; preds = %2
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%add = add nsw i32 %v1.0, 1
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br label %if.end
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if.else: ; preds = %2
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%add6 = add nsw i32 %v1.0, 1
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br label %if.end
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if.end: ; preds = %4, %3
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%k.0 = phi i32 [ %add, %if.then ], [ %add6, %if.else ]
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br label %for.cond
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exit: ; preds = %5
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ret void
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}
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define void @test2(ptr %x, ptr %y) {
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; CHECK-LABEL: 'test2'
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; CHECK-NEXT: Classifying expressions for: @test2
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; CHECK-NEXT: %v1.0 = phi i32 [ 0, %entry ], [ %k.0, %if.end ]
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; CHECK-NEXT: --> {0,+,1}<nuw><nsw><%for.cond> U: [0,7) S: [0,7) Exits: 6 LoopDispositions: { %for.cond: Computable }
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; CHECK-NEXT: %add = add nuw i32 %v1.0, 1
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; CHECK-NEXT: --> {1,+,1}<nuw><nsw><%for.cond> U: [1,8) S: [1,8) Exits: 7 LoopDispositions: { %for.cond: Computable }
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; CHECK-NEXT: %add6 = add nsw i32 %v1.0, 1
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; CHECK-NEXT: --> {1,+,1}<nuw><nsw><%for.cond> U: [1,8) S: [1,8) Exits: 7 LoopDispositions: { %for.cond: Computable }
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; CHECK-NEXT: %k.0 = phi i32 [ %add, %if.then ], [ %add6, %if.else ]
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; CHECK-NEXT: --> {1,+,1}<nuw><nsw><%for.cond> U: [1,8) S: [1,8) Exits: 7 LoopDispositions: { %for.cond: Computable }
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; CHECK-NEXT: Determining loop execution counts for: @test2
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; CHECK-NEXT: Loop %for.cond: backedge-taken count is i32 6
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; CHECK-NEXT: Loop %for.cond: constant max backedge-taken count is i32 6
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; CHECK-NEXT: Loop %for.cond: symbolic max backedge-taken count is i32 6
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; CHECK-NEXT: Loop %for.cond: Trip multiple is 7
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;
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entry:
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br label %for.cond
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for.cond: ; preds = %6, %0
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%v1.0 = phi i32 [ 0, %entry ], [ %k.0, %if.end ]
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%cmp = icmp slt i32 %v1.0, 6
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br i1 %cmp, label %for.body, label %exit
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for.body: ; preds = %1
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%cmp3 = icmp slt i32 %v1.0, 2
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br i1 %cmp3, label %if.then, label %if.else
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if.then: ; preds = %2
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%add = add nuw i32 %v1.0, 1
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br label %if.end
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if.else: ; preds = %2
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%add6 = add nsw i32 %v1.0, 1
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br label %if.end
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if.end: ; preds = %4, %3
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%k.0 = phi i32 [ %add, %if.then ], [ %add6, %if.else ]
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br label %for.cond
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exit: ; preds = %5
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ret void
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}
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