7dc0ba949c
The legacy pass manager printed the function name when printing
loop info (via -analyze option). Like this:
Printing analysis 'Natural Loop Information' for function 'func':
Loop at depth 1 containing: ...
Loop at depth 2 containing: ...
Make sure we print such a first line including the function name
also when using the new pass manager version of LoopPrinterPass.
The format of the string is changed slightly, so now we say:
Loop info for function 'func':
Loop at depth 1 containing: ...
Loop at depth 2 containing: ...
This was originally requested in
https://discourse.llvm.org/t/need-usage-help-w-new-pass-manager-for-opt-analysis-natural-loop-information/75874/7
and also mentioned in
https://github.com/llvm/llvm-project/issues/76762
38 lines
981 B
LLVM
38 lines
981 B
LLVM
; RUN: opt -passes='print<loops>' -disable-output %s 2>&1 | FileCheck %s
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;
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; void func(long n, double A[static const restrict n]) {
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; for (long i = 0; i < n; i += 1)
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; A[i] = 21;
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; }
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;
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; Check that isAnnotatedParallel is working as expected.
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;
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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define void @func(i64 %n, double* noalias nonnull %A) {
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entry:
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br label %for.cond
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for.cond:
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%i.0 = phi i64 [ 0, %entry ], [ %add, %for.body ]
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%cmp = icmp slt i64 %i.0, %n
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br i1 %cmp, label %for.body, label %for.end
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for.body:
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%arrayidx = getelementptr inbounds double, double* %A, i64 %i.0
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store double 2.100000e+01, double* %arrayidx, align 8, !llvm.access.group !6
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%add = add nuw nsw i64 %i.0, 1
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br label %for.cond, !llvm.loop !7
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for.end:
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ret void
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}
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!6 = distinct !{} ; access group
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!7 = distinct !{!7, !9} ; LoopID
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!9 = !{!"llvm.loop.parallel_accesses", !6}
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; CHECK: Loop info for function 'func':
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; CHECK: Parallel Loop at depth 1 containing:
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