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.
39 lines
1.1 KiB
LLVM
39 lines
1.1 KiB
LLVM
; RUN: opt -passes='print<access-info>' -disable-output < %s 2>&1 | FileCheck %s
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; Handle memchecks involving loop-invariant addresses:
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;
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; extern int *A, *b;
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; for (i = 0; i < N; ++i) {
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; A[i] = b;
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; }
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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; CHECK: Memory dependences are safe with run-time checks
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; CHECK: Run-time memory checks:
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; CHECK-NEXT: Check 0:
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; CHECK-NEXT: Comparing group
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; CHECK-NEXT: %arrayidxA = getelementptr inbounds i32, ptr %a, i64 %ind
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; CHECK-NEXT: Against group
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; CHECK-NEXT: ptr %b
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define void @f(ptr %a, ptr %b) {
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entry:
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br label %for.body
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for.body: ; preds = %for.body, %entry
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%ind = phi i64 [ 0, %entry ], [ %inc, %for.body ]
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%arrayidxA = getelementptr inbounds i32, ptr %a, i64 %ind
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%loadB = load i32, ptr %b, align 4
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store i32 %loadB, ptr %arrayidxA, align 4
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%inc = add nuw nsw i64 %ind, 1
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%exitcond = icmp eq i64 %inc, 20
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br i1 %exitcond, label %for.end, label %for.body
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for.end: ; preds = %for.body
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ret void
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}
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