bb2791609d
UpdateTestChecks has a make_analyzer_generalizer to replace pointer addressess from the debug output of LAA with a pattern, which is an acceptable solution when there is one RUN line. However, when there are multiple RUN lines with a common pattern, UTC fails to recognize common output due to mismatched pointer addresses. Instead of hacking UTC scrub the output before comparing the outputs from the different RUN lines, fix the issue once and for all by making LAA not output unstable pointer addresses in the first place. The removal of the now-dead make_analyzer_generalizer is left as a non-trivial exercise for a follow-up.
47 lines
1.6 KiB
LLVM
47 lines
1.6 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 = "p:16:16"
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define void @geps_may_wrap(ptr %a, ptr %b, i64 %N) {
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; CHECK-LABEL: 'geps_may_wrap'
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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: ptr %b
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; CHECK-NEXT: Against group GRP1:
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; CHECK-NEXT: %gep.iv = getelementptr i32, 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: %b High: (4 + %b))
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; CHECK-NEXT: Member: %b
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; CHECK-NEXT: Group GRP1:
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; CHECK-NEXT: (Low: %a High: (16 + (12 * (trunc i128 ((zext i64 %N to i128) /u 3) to i16)) + %a))
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; CHECK-NEXT: Member: {%a,+,12}<%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-NEXT: {0,+,3}<%loop> Added Flags: <nusw>
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; CHECK-NEXT: {%a,+,12}<%loop> Added Flags: <nusw>
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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 i64 [ 0, %entry ], [ %iv.next, %loop ]
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%gep.iv = getelementptr i32, ptr %a, i64 %iv
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store i32 0, ptr %gep.iv, align 1
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store i32 0, ptr %b, align 1
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%iv.next = add i64 %iv, 3
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%.not = icmp ult i64 %N, %iv
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br i1 %.not, label %exit, label %loop
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exit:
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ret void
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}
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