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4 Commits

Author SHA1 Message Date
Erik Pilkington 2f71cf6d77 [SemaObjC] Fix a -Wobjc-signed-char-bool false-positive with binary conditional operator 
We were previously bypassing the conditional expression special case for binary
conditional expressions.

rdar://64134411

Differential revision: https://reviews.llvm.org/D81751
 2020-07-07 13:29:54 -04:00
Erik Pilkington e392dcd570 [Sema] Look through OpaqueValueExpr when checking implicit conversions 
Specifically, this fixes a false-positive in -Wobjc-signed-char-bool.
rdar://57372317

Differential revision: https://reviews.llvm.org/D75387
 2020-03-02 11:24:36 -08:00
Erik Pilkington 8bfb353bb3 [Sema] Fix a -Wobjc-signed-char-bool false-positive 
Unsigned bit-field flags can only have boolean values, so handle that case in
Expr::isKnownToHaveBooleanValue.

rdar://56256999
 2019-11-18 12:15:20 -08:00
Erik Pilkington 5c62152275 [Sema] Split of versions of -Wimplicit-{float,int}-conversion for Objective-C BOOL 
Also, add a diagnostic group, -Wobjc-signed-char-bool, to control all these
related diagnostics.

rdar://51954400

Differential revision: https://reviews.llvm.org/D67559

llvm-svn: 372183
 2019-09-17 21:11:51 +00:00