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[AsmPrint] Dump raw frequencies in -mbb-profile-dump #66818

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Merged
merged 2 commits into from
Sep 19, 2023
Merged

[AsmPrint] Dump raw frequencies in -mbb-profile-dump #66818

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c3f694f
[AsmPrint] Dump raw frequencies in `-mbb-profile-dump`
mtrofin Sep 19, 2023
86cec34
address Snehasish's feedback
mtrofin Sep 19, 2023
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2 changes: 1 addition & 1 deletion llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1940,7 +1940,7 @@ void AsmPrinter::emitFunctionBody() {
for (const auto &MBB : *MF) {
*MBBProfileDumpFileOutput.get()
<< MF->getName() << "," << MBB.getBBID() << ","
<< MBFI.getBlockFreqRelativeToEntryBlock(&MBB) << "\n";
<< MBFI.getBlockFreq(&MBB).getFrequency() << "\n";
}
}
}
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9 changes: 5 additions & 4 deletions llvm/test/CodeGen/MLRegAlloc/bb-profile-dump.ll
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Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,8 @@ define i64 @f2(i64 %a, i64 %b) {
ret i64 %sum
}

; CHECK: f2,0,8

define i64 @f1() {
%sum = call i64 @f2(i64 2, i64 2)
%isEqual = icmp eq i64 %sum, 4
Expand All @@ -22,10 +24,9 @@ ifNotEqual:
ret i64 %sum
}

; CHECK: f2,0,1.000000e+00
; CHECK-NEXT: f1,0,1.000000e+00
; CHECK-NEXT: f1,1,5.000000e-01
; CHECK-NEXT: f1,2,1.000000e+00
; CHECK-NEXT: f1,0,16
; CHECK-NEXT: f1,1,8
; CHECK-NEXT: f1,2,16

; Check that if we pass -mbb-profile-dump but don't set -basic-block-sections,
; we get an appropriate error message
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