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When emitting .set directives, make sure the EH and Debug labels can't conflict.

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llvm-svn: 42257
This commit is contained in:
Chris Lattner 2007-09-24 03:35:37 +00:00
parent 02c6c6bba7
commit 0fc154af3d
1 changed files with 20 additions and 10 deletions
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30
lib/CodeGen/DwarfWriter.cpp
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@ -798,9 +798,14 @@ protected:
/// SubprogramCount - The running count of functions being compiled.
///
unsigned SubprogramCount;
/// Flavor - A unique string indicating what dwarf producer this is, used to
/// unique labels.
const char * const Flavor;
unsigned SetCounter;
Dwarf(std::ostream &OS, AsmPrinter *A, const TargetAsmInfo *T)
Dwarf(std::ostream &OS, AsmPrinter *A, const TargetAsmInfo *T,
const char *flavor)
: O(OS)
, Asm(A)
, TAI(T)
@ -810,6 +815,7 @@ protected:
, MF(NULL)
, MMI(NULL)
, SubprogramCount(0)
, Flavor(flavor)
, SetCounter(1)
{
}
@ -839,11 +845,17 @@ public:
PrintLabelName(Label.Tag, Label.Number);
}
void PrintLabelName(const char *Tag, unsigned Number) const {
O << TAI->getPrivateGlobalPrefix() << Tag;
if (Number) O << Number;
}
void PrintLabelName(const char *Tag, unsigned Number,
const char *Suffix) const {
O << TAI->getPrivateGlobalPrefix() << Tag;
if (Number) O << Number;
O << Suffix;
}
/// EmitLabel - Emit location label for internal use by Dwarf.
///
void EmitLabel(DWLabel Label) const {
@ -888,7 +900,7 @@ public:
bool IsSmall = false) {
if (TAI->needsSet()) {
O << "\t.set\t";
PrintLabelName("set", SetCounter);
PrintLabelName("set", SetCounter, Flavor);
O << ",";
PrintLabelName(TagHi, NumberHi);
O << "-";
@ -896,9 +908,7 @@ public:
O << "\n";
PrintRelDirective(IsSmall);
PrintLabelName("set", SetCounter);
PrintLabelName("set", SetCounter, Flavor);
++SetCounter;
} else {
PrintRelDirective(IsSmall);
@ -915,7 +925,7 @@ public:
bool printAbsolute = false;
if (TAI->needsSet()) {
O << "\t.set\t";
PrintLabelName("set", SetCounter);
PrintLabelName("set", SetCounter, Flavor);
O << ",";
PrintLabelName(Label, LabelNumber);
@ -932,7 +942,7 @@ public:
PrintRelDirective(IsSmall);
PrintLabelName("set", SetCounter);
PrintLabelName("set", SetCounter, Flavor);
++SetCounter;
} else {
PrintRelDirective(IsSmall, true);
@ -2565,7 +2575,7 @@ public:
// Main entry points.
//
DwarfDebug(std::ostream &OS, AsmPrinter *A, const TargetAsmInfo *T)
: Dwarf(OS, A, T)
: Dwarf(OS, A, T, "dbg")
, CompileUnits()
, AbbreviationsSet(InitAbbreviationsSetSize)
, Abbreviations()
@ -3268,7 +3278,7 @@ public:
// Main entry points.
//
DwarfException(std::ostream &OS, AsmPrinter *A, const TargetAsmInfo *T)
: Dwarf(OS, A, T)
: Dwarf(OS, A, T, "eh")
, shouldEmit(false)
{}