[PATCH] D62650: [DebugInfo] DBG_VALUE instruction generated for loop counter is placed incorrectly.

[Alexey Lapshin via Phabricator via llvm-commits]

avl added a comment.

following performance results with and without this patch. they are equal :

if this patch applied:

time clang foo.c -O2 -c -g -mllvm -stats 2>&1 | grep livedebug
 15074 livedebugvars         - Number of DBG_VALUEs inserted

real	0m4,819s
user	0m4,799s
sys	0m0,022s

if this patch is not applied:

time clang foo.c -O2 -c -g -mllvm -stats 2>&1 | grep livedebug
 15074 livedebugvars         - Number of DBG_VALUEs inserted

real	0m4,838s
user	0m4,808s
sys	0m0,032s

Before D35953 <https://reviews.llvm.org/D35953> that time was over 40min.


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https://reviews.llvm.org/D62650