[llvm-commits] [llvm] r71410 - /llvm/trunk/lib/CodeGen/AsmPrinter/DwarfWriter.cpp

[Dale Johannesen]

On May 11, 2009, at 1:53 PMPDT, Chris Lattner wrote:

>
> On May 10, 2009, at 4:14 PM, Bill Wendling wrote:
>
>> This doesn't take care of all of the problems with debug info for
>> inlined
>> functions, but it's a step in the right direction. For one thing,
>> llvm-gcc
>> generates wrong IR (it's missing some llvm.dbg intrinsics at the
>> point where the
>> function's inlined) for this example:
>>
>> #include <stdio.h>
>> static __inline__ __attribute__((always_inline))  int bar(int x)
>> { return 4; }
>> void foo() {
>> long long b = 1;
>> int Y = bar(4);
>> printf("%d\n", Y);
>> }
>
> The body for "bar" is gone by the time llvm_asm_file_end is called: I
> think the tree inliner is still being used???

Yeah, looks like it's not disabled fully at -O0 (no-unit-at-a-time  
seems to be the relevant setting).  A significantly different high- 
level code path, implemented by having  if(flag_unit_at_a_time)   all  
over the place in common code....