vsk planned changes to this revision.
vsk marked an inline comment as done.
vsk added a comment.
I'll write something up in the coverage mapping docs. Briefly, though, with
this change there should be a gap region that covers the entire switch body
(starting from the '{' in 'switch {', and terminating where the last case ends).
================
Comment at: clang/test/CoverageMapping/switch.cpp:32
switch (i) { // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+6]]:2 = #4
- nop(); // CHECK-NEXT: File 0, [[@LINE]]:5 -> [[@LINE+2]]:10 = 0
+ nop(); // CHECK-NEXT: Gap,File 0, [[@LINE-1]]:14 ->
[[@LINE+2]]:10 = 0
case 1: // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+1]]:10 = #7
----------------
efriedma wrote:
> I'm not sure I understand the effect here. Will we show that nop() never
> executes, or will we not show any coverage information for it?
The report will show an execution count of 0 for that call to nop(). In general
a gap region's count is selected as the line count when it's the only region
present in a line.
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D70571/new/
https://reviews.llvm.org/D70571
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