[llvm-commits] [llvm] r106792 - in /llvm/trunk: lib/CodeGen/AsmPrinter/DwarfDebug.cpp test/FrontendC/2010-06-24-DbgInlinedFnParameter.c

Devang Patel dpatel at apple.com
Fri Jun 25 11:42:48 PDT 2010


Is it possible for some to send me generated 2010-06-24-DbgInlinedFnParameter.c.tmp.s ?

Thanks,
-
Devang
On Jun 25, 2010, at 7:21 AM, Daniel Dunbar wrote:

> Hi Devang,
> 
> This test is failing on a two-stage llvm-gcc bootstrap. See here:
>  http://google1.osuosl.org:8011/builders/llvm-gcc-i686-darwin10-selfhost/builds/5139/steps/test.llvm.stage2/logs/2010-06-24-dbginlinedfnparameter.c
> 
> - Daniel
> 
> On Thu, Jun 24, 2010 at 2:51 PM, Devang Patel <dpatel at apple.com> wrote:
>> Author: dpatel
>> Date: Thu Jun 24 16:51:19 2010
>> New Revision: 106792
>> 
>> URL: http://llvm.org/viewvc/llvm-project?rev=106792&view=rev
>> Log:
>> DBG_VALUE machine instruction pointing to undefined register for a variable justify a separate scope if the variable is inlined function's argument.
>> Radar 8122864.
>> 
>> Added:
>>    llvm/trunk/test/FrontendC/2010-06-24-DbgInlinedFnParameter.c
>> Modified:
>>    llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
>> 
>> Modified: llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp?rev=106792&r1=106791&r2=106792&view=diff
>> ==============================================================================
>> --- llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp (original)
>> +++ llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp Thu Jun 24 16:51:19 2010
>> @@ -2390,8 +2390,6 @@
>>  static bool hasValidLocation(LLVMContext &Ctx,
>>                              const MachineInstr *MInsn,
>>                              const MDNode *&Scope, const MDNode *&InlinedAt) {
>> -  if (MInsn->isDebugValue())
>> -    return false;
>>   DebugLoc DL = MInsn->getDebugLoc();
>>   if (DL.isUnknown()) return false;
>> 
>> @@ -2655,7 +2653,6 @@
>>         assert (MI->getNumOperands() > 1 && "Invalid machine instruction!");
>>         DIVariable DV(MI->getOperand(MI->getNumOperands() - 1).getMetadata());
>>         if (!DV.Verify()) continue;
>> -        if (isDbgValueInUndefinedReg(MI)) continue;
>>         // If DBG_VALUE is for a local variable then it needs a label.
>>         if (DV.getTag() != dwarf::DW_TAG_arg_variable)
>>           InsnNeedsLabel.insert(MI);
>> @@ -2663,7 +2660,7 @@
>>         else if (!DISubprogram(DV.getContext()).describes(MF->getFunction()))
>>           InsnNeedsLabel.insert(MI);
>>         // DBG_VALUE indicating argument location change needs a label.
>> -        else if (!ProcessedArgs.insert(DV))
>> +        else if (isDbgValueInUndefinedReg(MI) == false && !ProcessedArgs.insert(DV))
>>           InsnNeedsLabel.insert(MI);
>>       } else {
>>         // If location is unknown then instruction needs a location only if
>> 
>> Added: llvm/trunk/test/FrontendC/2010-06-24-DbgInlinedFnParameter.c
>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/FrontendC/2010-06-24-DbgInlinedFnParameter.c?rev=106792&view=auto
>> ==============================================================================
>> --- llvm/trunk/test/FrontendC/2010-06-24-DbgInlinedFnParameter.c (added)
>> +++ llvm/trunk/test/FrontendC/2010-06-24-DbgInlinedFnParameter.c Thu Jun 24 16:51:19 2010
>> @@ -0,0 +1,15 @@
>> +// RUN: %llvmgcc -S -O2 -g %s -o - | llc -O2 -o %t.s
>> +// RUN: grep  "# DW_TAG_formal_parameter" %t.s | count 4
>> +// Radar 8122864
>> +static int foo(int a, int j) {
>> +  int k = 0;
>> +  if (a)
>> +    k = a + j;
>> +  else
>> +    k = j;
>> +  return k;
>> +}
>> +int bar(int o, int p) {
>> +
>> +  return foo(o, p);
>> +}
>> 
>> 
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>> 

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