derek.holloway
7502bf64a4
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180 lines
6.4 KiB
LLVM
180 lines
6.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py UTC_ARGS: --version 5
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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:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64"
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define void @runtime_checks_with_symbolic_max_btc_neg_1(ptr %P, ptr %S, i32 %x, i32 %y) {
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; CHECK-LABEL: 'runtime_checks_with_symbolic_max_btc_neg_1'
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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.iv = getelementptr inbounds i32, ptr %P, i32 %iv
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; CHECK-NEXT: Against group GRP1:
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; CHECK-NEXT: ptr %S
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; CHECK-NEXT: Grouped accesses:
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; CHECK-NEXT: Group GRP0:
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; CHECK-NEXT: (Low: ((4 * %y) + %P) High: inttoptr (i32 -1 to ptr))
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; CHECK-NEXT: Member: {((4 * %y) + %P),+,4}<%loop>
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; CHECK-NEXT: Group GRP1:
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; CHECK-NEXT: (Low: %S High: (4 + %S))
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; CHECK-NEXT: Member: %S
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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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br label %loop
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loop:
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%iv = phi i32 [ %y, %entry ], [ %iv.next, %loop ]
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%gep.iv = getelementptr inbounds i32, ptr %P, i32 %iv
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%l = load i32, ptr %S
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store i32 %l, ptr %gep.iv, align 4
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%iv.next = add nsw i32 %iv, 1
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%c.2 = icmp slt i32 %iv.next, %l
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br i1 %c.2, label %loop, label %exit
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exit:
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ret void
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}
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define void @runtime_check_with_symbolic_max_btc_neg_2(ptr %P, ptr %S, i32 %x, i32 %y) {
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; CHECK-LABEL: 'runtime_check_with_symbolic_max_btc_neg_2'
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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.iv = getelementptr inbounds i32, ptr %P, i32 %iv
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; CHECK-NEXT: Against group GRP1:
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; CHECK-NEXT: ptr %S
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; CHECK-NEXT: Grouped accesses:
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; CHECK-NEXT: Group GRP0:
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; CHECK-NEXT: (Low: ((4 * %y) + %P) High: inttoptr (i32 -1 to ptr))
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; CHECK-NEXT: Member: {((4 * %y) + %P),+,4}<%loop>
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; CHECK-NEXT: Group GRP1:
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; CHECK-NEXT: (Low: %S High: (4 + %S))
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; CHECK-NEXT: Member: %S
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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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br label %loop
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loop:
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%iv = phi i32 [ %y, %entry ], [ %iv.next, %loop ]
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%gep.iv = getelementptr inbounds i32, ptr %P, i32 %iv
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%l = load i32, ptr %S
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store i32 %l, ptr %gep.iv, align 4
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%iv.next = add nsw i32 %iv, 1
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%a = and i32 %l, -2
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%c.2 = icmp slt i32 %iv.next, %a
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br i1 %c.2, label %loop, label %exit
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exit:
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ret void
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}
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define i32 @check_no_dep_via_bounds_compare_symbolic_max_btc_neg_1(ptr %P, i32 %x, i32 %y) {
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; CHECK-LABEL: 'check_no_dep_via_bounds_compare_symbolic_max_btc_neg_1'
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; CHECK-NEXT: loop:
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; CHECK-NEXT: Report: unsafe dependent memory operations in loop. Use #pragma clang loop distribute(enable) to allow loop distribution to attempt to isolate the offending operations into a separate loop
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; CHECK-NEXT: Unknown data dependence.
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; CHECK-NEXT: Dependences:
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; CHECK-NEXT: Unknown:
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; CHECK-NEXT: store i64 0, ptr %gep.iv, align 4 ->
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; CHECK-NEXT: %l.2 = load i32, ptr %gep.P.4, align 4
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; CHECK-EMPTY:
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; CHECK-NEXT: Unknown:
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; CHECK-NEXT: %l = load i32, ptr %gep.iv, align 4 ->
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; CHECK-NEXT: store i64 0, ptr %gep.iv, align 4
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; CHECK-EMPTY:
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; CHECK-NEXT: Run-time memory checks:
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; CHECK-NEXT: Grouped accesses:
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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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%gep.P.4 = getelementptr inbounds nuw i8, ptr %P, i32 4
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%gep.P.8 = getelementptr inbounds nuw i8, ptr %P, i32 8
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br label %loop
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loop:
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%1 = phi i32 [ %x, %entry ], [ %sel, %loop.latch ]
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%iv = phi i32 [ %y, %entry ], [ %iv.next, %loop.latch ]
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%gep.iv = getelementptr inbounds i64, ptr %gep.P.8, i32 %iv
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%l = load i32, ptr %gep.iv, align 4
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%c.1 = icmp eq i32 %l, 3
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br i1 %c.1, label %loop.latch, label %if.then
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if.then: ; preds = %for.body
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store i64 0, ptr %gep.iv, align 4
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%l.2 = load i32, ptr %gep.P.4
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br label %loop.latch
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loop.latch:
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%sel = phi i32 [ %l.2, %if.then ], [ %1, %loop ]
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%iv.next = add nsw i32 %iv, 1
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%c.2 = icmp slt i32 %iv.next, %sel
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br i1 %c.2, label %loop, label %exit
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exit:
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%res = phi i32 [ %iv.next, %loop.latch ]
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ret i32 %res
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}
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; Evaluating at symbolic max BTC wraps around to a positive
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; offset: (2 + (2 * %y) + %P).
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define void @runtime_check_with_symbolic_max_wraps_to_positive_offset(ptr %P, ptr %S, i32 %x, i32 %y) {
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; CHECK-LABEL: 'runtime_check_with_symbolic_max_wraps_to_positive_offset'
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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.iv = getelementptr inbounds i16, ptr %P, i32 %iv
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; CHECK-NEXT: Against group GRP1:
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; CHECK-NEXT: ptr %S
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; CHECK-NEXT: Grouped accesses:
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; CHECK-NEXT: Group GRP0:
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; CHECK-NEXT: (Low: ((2 * %y) + %P) High: inttoptr (i32 -1 to ptr))
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; CHECK-NEXT: Member: {((2 * %y) + %P),+,2}<%loop>
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; CHECK-NEXT: Group GRP1:
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; CHECK-NEXT: (Low: %S High: (4 + %S))
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; CHECK-NEXT: Member: %S
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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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br label %loop
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loop:
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%iv = phi i32 [ %y, %entry ], [ %iv.next, %loop ]
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%gep.iv = getelementptr inbounds i16 , ptr %P, i32 %iv
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%l = load i32, ptr %S
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store i16 0, ptr %gep.iv, align 4
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%iv.next = add nsw i32 %iv, 1
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%a = and i32 %l, 2147483648
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%c.2 = icmp slt i32 %iv.next, %a
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br i1 %c.2, label %loop, label %exit
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exit:
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ret void
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}
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