jfb added a comment.
Why have `.c` and `.cpp` tests?
================
Comment at: test/Sema/warn-xor-as-pow.c:43
+ res = TWO_ULL ^ 16;
+ res = 2 ^ 32; // expected-warning {{result of '2 ^ 32' is 34; maybe you mean
'1<<32', but shift count >= width of type}}
+ // expected-note@-1 {{replace expression with '(2) ^ 32' to silence this
warning}}
----------------
I think we want to suggest `1LL << 32` or something like that. Whatever we
usually do with this type of suggestion.
================
Comment at: test/Sema/warn-xor-as-pow.c:45
+ // expected-note@-1 {{replace expression with '(2) ^ 32' to silence this
warning}}
+ res = 2 ^ 64; // expected-warning {{result of '2 ^ 64' is 66; maybe you mean
'1<<64', but shift count >= width of type}}
+ // expected-note@-1 {{replace expression with '(2) ^ 64' to silence this
warning}}
----------------
This one hits a ceiling, we can't really suggest anything for this value IMO.
Maybe we need to see if the user is doing `2^64 - 1`? In that case we can offer
a suggestion.
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D63423/new/
https://reviews.llvm.org/D63423
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