derek.holloway
7502bf64a4
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127 lines
5.2 KiB
LLVM
127 lines
5.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py UTC_ARGS: --version 4
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; RUN: opt -passes='print<access-info>' -disable-output %s 2>&1 | FileCheck %s
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target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
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declare void @llvm.assume(i1)
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; FIXME: Currently we check all accesses to the same underlying objects, but
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; it is sufficient to check the accesses to %A.
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define void @test_dependence_with_non_constant_offset_and_other_accesses_to_noalias_pointers(ptr %A, ptr noalias %B, i64 %off) {
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; CHECK-LABEL: 'test_dependence_with_non_constant_offset_and_other_accesses_to_noalias_pointers'
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; CHECK-NEXT: loop:
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; CHECK-NEXT: Memory dependences are safe with run-time checks
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; CHECK-NEXT: Dependences:
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; CHECK-NEXT: Run-time memory checks:
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; CHECK-NEXT: Check 0:
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; CHECK-NEXT: Comparing group GRP0:
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; CHECK-NEXT: %gep.A.400 = getelementptr inbounds i32, ptr %A.off, i64 %iv
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; CHECK-NEXT: Against group GRP1:
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; CHECK-NEXT: %gep.A = getelementptr inbounds i8, ptr %A, i64 %iv
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; CHECK-NEXT: Grouped accesses:
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; CHECK-NEXT: Group GRP0:
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; CHECK-NEXT: (Low: (%off + %A) High: (404 + %off + %A))
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; CHECK-NEXT: Member: {(%off + %A),+,4}<nw><%loop>
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; CHECK-NEXT: Group GRP1:
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; CHECK-NEXT: (Low: %A High: (101 + %A))
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; CHECK-NEXT: Member: {%A,+,1}<nuw><%loop>
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; CHECK-NEXT: Group GRP2:
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; CHECK-NEXT: (Low: %B High: (102 + %B))
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; CHECK-NEXT: Member: {(1 + %B)<nuw>,+,1}<nuw><%loop>
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; CHECK-NEXT: Member: {%B,+,1}<nuw><%loop>
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; CHECK-EMPTY:
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; CHECK-NEXT: Non vectorizable stores to invariant address were not found in loop.
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; CHECK-NEXT: SCEV assumptions:
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; CHECK-EMPTY:
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; CHECK-NEXT: Expressions re-written:
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;
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entry:
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%c = icmp sgt i64 %off, 0
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call void @llvm.assume(i1 %c)
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%A.off = getelementptr inbounds i8, ptr %A, i64 %off
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br label %loop
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loop:
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%iv = phi i64 [ 0, %entry ], [ %iv.next, %loop ]
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%gep.A.400 = getelementptr inbounds i32, ptr %A.off, i64 %iv
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%gep.A = getelementptr inbounds i8, ptr %A, i64 %iv
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%l = load i8, ptr %gep.A, align 1
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%ext = zext i8 %l to i32
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store i32 %ext, ptr %gep.A.400, align 4
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%iv.next = add nuw nsw i64 %iv, 1
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%gep.B.1 = getelementptr inbounds i8, ptr %B, i64 %iv.next
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%l.2 = load i8, ptr %gep.B.1
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%gep.B = getelementptr inbounds i8, ptr %B, i64 %iv
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store i8 %l.2, ptr %gep.B
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%ec = icmp eq i64 %iv, 100
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br i1 %ec, label %exit, label %loop
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exit:
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ret void
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}
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define void @test_dependence_with_non_constant_offset_and_other_accesses_to_mayalias_pointers(ptr %A, ptr %B, i64 %off) {
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; CHECK-LABEL: 'test_dependence_with_non_constant_offset_and_other_accesses_to_mayalias_pointers'
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; CHECK-NEXT: loop:
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; CHECK-NEXT: Memory dependences are safe with run-time checks
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; CHECK-NEXT: Dependences:
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; CHECK-NEXT: Run-time memory checks:
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; CHECK-NEXT: Check 0:
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; CHECK-NEXT: Comparing group GRP0:
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; CHECK-NEXT: %gep.A.400 = getelementptr inbounds i32, ptr %A.off, i64 %iv
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; CHECK-NEXT: Against group GRP1:
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; CHECK-NEXT: %gep.B.1 = getelementptr inbounds i8, ptr %B, i64 %iv.next
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; CHECK-NEXT: %gep.B = getelementptr inbounds i8, ptr %B, i64 %iv
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; CHECK-NEXT: Check 1:
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; CHECK-NEXT: Comparing group GRP0:
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; CHECK-NEXT: %gep.A.400 = getelementptr inbounds i32, ptr %A.off, i64 %iv
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; CHECK-NEXT: Against group GRP2:
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; CHECK-NEXT: %gep.A = getelementptr inbounds i8, ptr %A, i64 %iv
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; CHECK-NEXT: Check 2:
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; CHECK-NEXT: Comparing group GRP1:
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; CHECK-NEXT: %gep.B.1 = getelementptr inbounds i8, ptr %B, i64 %iv.next
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; CHECK-NEXT: %gep.B = getelementptr inbounds i8, ptr %B, i64 %iv
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; CHECK-NEXT: Against group GRP2:
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; CHECK-NEXT: %gep.A = getelementptr inbounds i8, ptr %A, i64 %iv
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; CHECK-NEXT: Grouped accesses:
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; CHECK-NEXT: Group GRP0:
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; CHECK-NEXT: (Low: (%off + %A) High: (404 + %off + %A))
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; CHECK-NEXT: Member: {(%off + %A),+,4}<nw><%loop>
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; CHECK-NEXT: Group GRP1:
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; CHECK-NEXT: (Low: %B High: (102 + %B))
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; CHECK-NEXT: Member: {(1 + %B)<nuw>,+,1}<nuw><%loop>
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; CHECK-NEXT: Member: {%B,+,1}<nuw><%loop>
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; CHECK-NEXT: Group GRP2:
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; CHECK-NEXT: (Low: %A High: (101 + %A))
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; CHECK-NEXT: Member: {%A,+,1}<nuw><%loop>
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; CHECK-EMPTY:
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; CHECK-NEXT: Non vectorizable stores to invariant address were not found in loop.
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; CHECK-NEXT: SCEV assumptions:
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; CHECK-EMPTY:
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; CHECK-NEXT: Expressions re-written:
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;
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entry:
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%c = icmp sgt i64 %off, 0
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call void @llvm.assume(i1 %c)
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%A.off = getelementptr inbounds i8, ptr %A, i64 %off
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br label %loop
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loop:
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%iv = phi i64 [ 0, %entry ], [ %iv.next, %loop ]
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%gep.A.400 = getelementptr inbounds i32, ptr %A.off, i64 %iv
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%gep.A = getelementptr inbounds i8, ptr %A, i64 %iv
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%l = load i8, ptr %gep.A, align 1
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%ext = zext i8 %l to i32
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store i32 %ext, ptr %gep.A.400, align 4
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%iv.next = add nuw nsw i64 %iv, 1
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%gep.B.1 = getelementptr inbounds i8, ptr %B, i64 %iv.next
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%l.2 = load i8, ptr %gep.B.1
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%gep.B = getelementptr inbounds i8, ptr %B, i64 %iv
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store i8 %l.2, ptr %gep.B
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%ec = icmp eq i64 %iv, 100
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br i1 %ec, label %exit, label %loop
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exit:
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ret void
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}
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