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Emit line numbers in asm comments when available.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76117 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Greene 2009-07-16 22:24:20 +00:00
parent aad3fb7362
commit 3ac1ab835c
2 changed files with 42 additions and 2 deletions
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17
lib/CodeGen/AsmPrinter/AsmPrinter.cpp
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@ -22,6 +22,7 @@
#include "llvm/CodeGen/MachineModuleInfo.h"
#include "llvm/CodeGen/DwarfWriter.h"
#include "llvm/Analysis/DebugInfo.h"
#include "llvm/MC/MCInst.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/FormattedStream.h"
@ -1731,11 +1732,23 @@ GCMetadataPrinter *AsmPrinter::GetOrCreateGCPrinter(GCStrategy *S) {
/// EmitComments - Pretty-print comments for instructions
void AsmPrinter::EmitComments(const MachineInstr &MI) const
{
// No comments in MachineInstr yet
if (!MI.getDebugLoc().isUnknown()) {
DebugLocTuple DLT = MF->getDebugLocTuple(MI.getDebugLoc());
// Print source line info
O.PadToColumn(TAI->getCommentColumn(), 1);
O << TAI->getCommentString() << " SrcLine " << DLT.Line << ":" << DLT.Col;
}
}
/// EmitComments - Pretty-print comments for instructions
void AsmPrinter::EmitComments(const MCInst &MI) const
{
// No comments in MCInst yet
if (!MI.getDebugLoc().isUnknown()) {
DebugLocTuple DLT = MF->getDebugLocTuple(MI.getDebugLoc());
// Print source line info
O.PadToColumn(TAI->getCommentColumn(), 1);
O << TAI->getCommentString() << " SrcLine " << DLT.Line << ":" << DLT.Col;
}
}

27
test/FrontendC++/2009-07-15-LineNumbers.cpp Normal file
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@ -0,0 +1,27 @@
// This is a regression test on debug info to make sure that we can
// print line numbers in asm.
// RUN: %llvmgcc -S -O0 -g %s -o - | llvm-as | \
// RUN: llc --disable-fp-elim -f -O0 -relocation-model=pic | grep {# SrcLine 25}
#include <stdlib.h>
class DeepStack {
int seedVal;
public:
DeepStack(int seed) : seedVal(seed) {}
int shallowest( int x ) { return shallower(x + 1); }
int shallower ( int x ) { return shallow(x + 2); }
int shallow ( int x ) { return deep(x + 3); }
int deep ( int x ) { return deeper(x + 4); }
int deeper ( int x ) { return deepest(x + 6); }
int deepest ( int x ) { return x + 7; }
int runit() { return shallowest(seedVal); }
};
int main ( int argc, char** argv) {
DeepStack DS9( (argc > 1 ? atoi(argv[1]) : 0) );
return DS9.runit();
}