Fix <rdar://problem/6261178> clang-on-xcode: [sema] multiple method warning is over enthusiastic.

Fix <rdar://problem/6265257> warnings for ambiguous message send swamp other warnings.

Reworked Sema::MatchTwoMethodDeclarations() to optionally match based on method size and alignment (the default in GCC). Changed Sema::LookupInstanceMethodInGlobalPool() to use this feature.

Added -Wno-struct-selector-match to driver, however didn't hook it up yet. Added a FIXME that says this.

llvm-svn: 57898

1 files changed, 6 insertions, 6 deletions

diff --git a/clang/test/SemaObjC/method-lookup-3.m b/clang/test/SemaObjC/method-lookup-3.m
index a1815fa386e..25299ca6d3b 100644
--- a/clang/test/SemaObjC/method-lookup-3.m
+++ b/clang/test/SemaObjC/method-lookup-3.m
@@ -22,9 +22,9 @@ typedef struct { int x; } Alternate;
 -(void) x; // expected-warning{{also found}}
 -(void) y; // expected-warning{{also found}}
 -(void) z; // expected-warning{{also found}}
--(void) setX: (INTERFERE_TYPE) arg; // expected-warning{{also found}}
--(void) setY: (INTERFERE_TYPE) arg; // expected-warning{{also found}}
--(void) setZ: (INTERFERE_TYPE) arg; // expected-warning{{also found}}
+-(void) setX: (INTERFERE_TYPE) arg; 
+-(void) setY: (INTERFERE_TYPE) arg;
+-(void) setZ: (INTERFERE_TYPE) arg;
 @end
 
 void f0(id a0) {
@@ -40,13 +40,13 @@ void f2(id a0) {
 }
 
 void f3(id a0, Abstract *a1) { 
-  [ a0 setX: a1]; // expected-warning {{multiple methods named 'setX:' found}}
+  [ a0 setX: a1];
 }
 
 void f4(id a0, Abstract *a1) { 
-  [ a0 setY: a1]; // expected-warning {{multiple methods named 'setY:' found}}
+  [ a0 setY: a1];
 }
 
 void f5(id a0, Abstract *a1) { 
-  [ a0 setZ: a1]; // expected-warning {{multiple methods named 'setZ:' found}}
+  [ a0 setZ: a1];
 }