1; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py UTC_ARGS: --version 2 2; RUN: opt -passes='print<scalar-evolution>' -disable-output %s 2>&1 | FileCheck %s 3 4define i64 @alloca_non_null() { 5; CHECK-LABEL: 'alloca_non_null' 6; CHECK-NEXT: Classifying expressions for: @alloca_non_null 7; CHECK-NEXT: %alloca = alloca i32, align 4 8; CHECK-NEXT: --> %alloca U: [4,-7) S: [-9223372036854775808,9223372036854775805) 9; CHECK-NEXT: %int = ptrtoint ptr %alloca to i64 10; CHECK-NEXT: --> (ptrtoint ptr %alloca to i64) U: [4,-7) S: [-9223372036854775808,9223372036854775805) 11; CHECK-NEXT: Determining loop execution counts for: @alloca_non_null 12; 13 %alloca = alloca i32, align 4 14 %int = ptrtoint ptr %alloca to i64 15 ret i64 %int 16} 17 18define i64 @alloca_maybe_null() { 19; CHECK-LABEL: 'alloca_maybe_null' 20; CHECK-NEXT: Classifying expressions for: @alloca_maybe_null 21; CHECK-NEXT: %alloca = alloca i32, align 4, addrspace(1) 22; CHECK-NEXT: --> %alloca U: [0,-7) S: [-9223372036854775808,9223372036854775805) 23; CHECK-NEXT: %int = ptrtoint ptr addrspace(1) %alloca to i64 24; CHECK-NEXT: --> (ptrtoint ptr addrspace(1) %alloca to i64) U: [0,-7) S: [-9223372036854775808,9223372036854775805) 25; CHECK-NEXT: Determining loop execution counts for: @alloca_maybe_null 26; 27 %alloca = alloca i32, align 4, addrspace(1) 28 %int = ptrtoint ptr addrspace(1) %alloca to i64 29 ret i64 %int 30} 31 32define void @alloca_icmp_null_exit_count() { 33; CHECK-LABEL: 'alloca_icmp_null_exit_count' 34; CHECK-NEXT: Classifying expressions for: @alloca_icmp_null_exit_count 35; CHECK-NEXT: %alloca = alloca [3 x i32], align 4 36; CHECK-NEXT: --> %alloca U: [4,-15) S: [-9223372036854775808,9223372036854775805) 37; CHECK-NEXT: %alloca.end = getelementptr inbounds i32, ptr %alloca, i64 3 38; CHECK-NEXT: --> (12 + %alloca)<nuw> U: [16,-3) S: [-9223372036854775808,9223372036854775805) 39; CHECK-NEXT: %ptr = phi ptr [ %ptr.next, %loop ], [ %alloca, %entry ] 40; CHECK-NEXT: --> {%alloca,+,4}<nuw><%loop> U: [4,-7) S: [-9223372036854775808,9223372036854775805) Exits: (8 + %alloca)<nuw> LoopDispositions: { %loop: Computable } 41; CHECK-NEXT: %ptr.next = getelementptr i32, ptr %ptr, i64 1 42; CHECK-NEXT: --> {(4 + %alloca)<nuw>,+,4}<nuw><%loop> U: [8,-3) S: [-9223372036854775808,9223372036854775805) Exits: (12 + %alloca)<nuw> LoopDispositions: { %loop: Computable } 43; CHECK-NEXT: %and = and i1 %cmp1, %cmp2 44; CHECK-NEXT: --> (%cmp2 umin %cmp1) U: full-set S: full-set Exits: <<Unknown>> LoopDispositions: { %loop: Variant } 45; CHECK-NEXT: Determining loop execution counts for: @alloca_icmp_null_exit_count 46; CHECK-NEXT: Loop %loop: backedge-taken count is i64 2 47; CHECK-NEXT: Loop %loop: constant max backedge-taken count is i64 2 48; CHECK-NEXT: Loop %loop: symbolic max backedge-taken count is i64 2 49; CHECK-NEXT: Loop %loop: Trip multiple is 3 50; 51entry: 52 %alloca = alloca [3 x i32], align 4 53 %alloca.end = getelementptr inbounds i32, ptr %alloca, i64 3 54 br label %loop 55 56loop: 57 %ptr = phi ptr [ %ptr.next, %loop ], [ %alloca, %entry ] 58 %ptr.next = getelementptr i32, ptr %ptr, i64 1 59 %cmp1 = icmp ne ptr %ptr.next, %alloca.end 60 %cmp2 = icmp ne ptr %ptr.next, null 61 %and = and i1 %cmp1, %cmp2 62 br i1 %and, label %loop, label %exit 63 64exit: 65 ret void 66} 67