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...e debugging experience for optimized code. The problem that I see with this approach is that DEBUG_VALUEs are only valid until the next DEBUG_VALUE that describes the same variable. How does your pass handle: BB0: DEBUG_VALUE “x”, vreg0 | | | BB1: | DEBUG_VALUE “x”, vreg1 | | \_____BB2: | | |____/ BB2: vreg0 // still not clobbered here. Does it insert a DEBUG_VALUE “x”, vreg0 into BB2? -- adrian

...The problem that I see with this approach is that DEBUG_VALUEs are only valid until the next DEBUG_VALUE that describes the same variable. How does your pass handle: > > BB0: > DEBUG_VALUE “x”, vreg0 > > | | > | BB1: > | DEBUG_VALUE “x”, vreg1 > | | > \_____BB2: > | | > |____/ > BB2: > vreg0 // still not clobbered here. > > Does it insert a DEBUG_VALUE “x”, vreg0 into BB2? > > -- adrian > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail...

...proach is that DEBUG_VALUEs are only valid until the next DEBUG_VALUE that describes the same variable. How does your pass handle: >> >> BB0: >> DEBUG_VALUE “x”, vreg0 >> >> | | >> | BB1: >> | DEBUG_VALUE “x”, vreg1 >> | | >> \_____BB2: >> | | >> |____/ >> BB2: >> vreg0 // still not clobbered here. >> >> Does it insert a DEBUG_VALUE “x”, vreg0 into BB2? >> >> -- adrian >> >> > > -------------- next part -------------- An HTML attachment was...

...valid until the next DEBUG_VALUE that describes the same variable. How does your pass handle: >>> >>> BB0: >>> DEBUG_VALUE “x”, vreg0 >>> >>> | | >>> | BB1: >>> | DEBUG_VALUE “x”, vreg1 >>> | | >>> \_____BB2: >>> | | >>> |____/ >>> BB2: >>> vreg0 // still not clobbered here. >>> >>> Does it insert a DEBUG_VALUE “x”, vreg0 into BB2? >>> >>> -- adrian >>> >>> >> >> > > ---...

Hi all, An early implementation of extending debug ranges and providing multiple location support is done here: http://reviews.llvm.org/D11933 Design document: https://docs.google.com/document/d/1noDVWTvTWBdYdweICPBwvwyt8QvX4KHl7j3XKNSg1nE/edit?usp=sharing On Jun 24, 2015, at 12:12 PM, Alexey Samsonov <vonosmas at gmail.com> wrote: Hi Adrian, You might want to take a look at abandoned