68 lines
3.3 KiB
LLVM
68 lines
3.3 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py UTC_ARGS: --version 2
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; RUN: opt -passes='print<scalar-evolution>' -disable-output %s 2>&1 | FileCheck %s
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define i64 @alloca_non_null() {
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; CHECK-LABEL: 'alloca_non_null'
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; CHECK-NEXT: Classifying expressions for: @alloca_non_null
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; CHECK-NEXT: %alloca = alloca i32, align 4
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; CHECK-NEXT: --> %alloca U: [4,-7) S: [-9223372036854775808,9223372036854775805)
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; CHECK-NEXT: %int = ptrtoint ptr %alloca to i64
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; CHECK-NEXT: --> (ptrtoint ptr %alloca to i64) U: [4,-7) S: [-9223372036854775808,9223372036854775805)
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; CHECK-NEXT: Determining loop execution counts for: @alloca_non_null
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;
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%alloca = alloca i32, align 4
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%int = ptrtoint ptr %alloca to i64
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ret i64 %int
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}
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define i64 @alloca_maybe_null() {
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; CHECK-LABEL: 'alloca_maybe_null'
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; CHECK-NEXT: Classifying expressions for: @alloca_maybe_null
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; CHECK-NEXT: %alloca = alloca i32, align 4, addrspace(1)
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; CHECK-NEXT: --> %alloca U: [0,-7) S: [-9223372036854775808,9223372036854775805)
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; CHECK-NEXT: %int = ptrtoint ptr addrspace(1) %alloca to i64
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; CHECK-NEXT: --> (ptrtoint ptr addrspace(1) %alloca to i64) U: [0,-7) S: [-9223372036854775808,9223372036854775805)
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; CHECK-NEXT: Determining loop execution counts for: @alloca_maybe_null
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;
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%alloca = alloca i32, align 4, addrspace(1)
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%int = ptrtoint ptr addrspace(1) %alloca to i64
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ret i64 %int
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}
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define void @alloca_icmp_null_exit_count() {
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; CHECK-LABEL: 'alloca_icmp_null_exit_count'
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; CHECK-NEXT: Classifying expressions for: @alloca_icmp_null_exit_count
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; CHECK-NEXT: %alloca = alloca [3 x i32], align 4
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; CHECK-NEXT: --> %alloca U: [4,-15) S: [-9223372036854775808,9223372036854775805)
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; CHECK-NEXT: %alloca.end = getelementptr inbounds i32, ptr %alloca, i64 3
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; CHECK-NEXT: --> (12 + %alloca)<nuw> U: [16,-3) S: [-9223372036854775808,9223372036854775805)
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; CHECK-NEXT: %ptr = phi ptr [ %ptr.next, %loop ], [ %alloca, %entry ]
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; CHECK-NEXT: --> {%alloca,+,4}<nuw><%loop> U: [4,-7) S: [-9223372036854775808,9223372036854775805) Exits: (8 + %alloca)<nuw> LoopDispositions: { %loop: Computable }
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; CHECK-NEXT: %ptr.next = getelementptr i32, ptr %ptr, i64 1
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; CHECK-NEXT: --> {(4 + %alloca)<nuw>,+,4}<nuw><%loop> U: [8,-3) S: [-9223372036854775808,9223372036854775805) Exits: (12 + %alloca)<nuw> LoopDispositions: { %loop: Computable }
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; CHECK-NEXT: %and = and i1 %cmp1, %cmp2
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; CHECK-NEXT: --> (%cmp2 umin %cmp1) U: full-set S: full-set Exits: <<Unknown>> LoopDispositions: { %loop: Variant }
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; CHECK-NEXT: Determining loop execution counts for: @alloca_icmp_null_exit_count
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; CHECK-NEXT: Loop %loop: backedge-taken count is 2
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; CHECK-NEXT: Loop %loop: constant max backedge-taken count is 2
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; CHECK-NEXT: Loop %loop: symbolic max backedge-taken count is 2
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; CHECK-NEXT: Loop %loop: Predicated backedge-taken count is 2
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; CHECK-NEXT: Predicates:
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; CHECK-NEXT: Loop %loop: Trip multiple is 3
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;
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entry:
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%alloca = alloca [3 x i32], align 4
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%alloca.end = getelementptr inbounds i32, ptr %alloca, i64 3
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br label %loop
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loop:
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%ptr = phi ptr [ %ptr.next, %loop ], [ %alloca, %entry ]
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%ptr.next = getelementptr i32, ptr %ptr, i64 1
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%cmp1 = icmp ne ptr %ptr.next, %alloca.end
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%cmp2 = icmp ne ptr %ptr.next, null
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%and = and i1 %cmp1, %cmp2
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br i1 %and, label %loop, label %exit
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exit:
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ret void
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}
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