[PATCH] D91734: [FastISel] Flush local value map on every instruction

[Paul Robinson via Phabricator via llvm-commits]

probinson added a comment.

Just for grins, change the `&&` to `||` and see what happens...
The xorl becomes a movb $1 (no surprise there).  But, that instruction no longer has line-0, instead it becomes part of the prologue.
This tells me that the xorl had an explicit line 0, while the 'movb $1' has no location (a subtle but important difference).

There are also curious differences between the CGExprScalar.cpp methods VisitBinLAnd() and VisitBinLOr(); the former is more attentive to line attributions than the latter, which seems likely to be an oversight dating back a decade or so.

Onward into the breach.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D91734/new/

https://reviews.llvm.org/D91734