797afe3a4e
source expressions when iterating over a PseudoObjectExpr's semantic subexpression list. Previously the loop in emitPseudoObjectExpr would emit the IR for each OpaqueValueExpr that was in a PseudoObjectExpr's semantic-form expression list and use the result when the OpaqueValueExpr later appeared in other expressions. This caused an assertion failure when AggExprEmitter tried to copy the result of an OpaqueValueExpr and the copied type didn't have trivial copy/move constructors or assignment operators. This patch adds flag IsUnique to OpaqueValueExpr which indicates it is a unique reference to its source expression (it is not used in multiple places). The loop in emitPseudoObjectExpr ignores OpaqueValueExprs that are unique and CodeGen visitors simply traverse the source expressions of such OpaqueValueExprs. rdar://problem/34363596 Differential Revision: https://reviews.llvm.org/D39562 llvm-svn: 327939
57 lines
2.6 KiB
Objective-C
57 lines
2.6 KiB
Objective-C
// RUN: %clang_cc1 -emit-llvm -triple x86_64-apple-darwin -o - %s | FileCheck %s
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typedef unsigned int size_t;
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@protocol P @end
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@interface NSMutableArray
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- (id)objectAtIndexedSubscript:(size_t)index;
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- (void)setObject:(id)object atIndexedSubscript:(size_t)index;
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@end
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@interface NSMutableDictionary
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- (id)objectForKeyedSubscript:(id)key;
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- (void)setObject:(id)object forKeyedSubscript:(id)key;
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@end
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int main() {
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NSMutableArray *array;
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id val;
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id oldObject = array[10];
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// CHECK: [[ARR:%.*]] = load {{%.*}} [[array:%.*]], align 8
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// CHECK-NEXT: [[SEL:%.*]] = load i8*, i8** @OBJC_SELECTOR_REFERENCES_
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// CHECK-NEXT: [[ARRC:%.*]] = bitcast {{%.*}} [[ARR]] to i8*
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// CHECK-NEXT: [[CALL:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i8* (i8*, i8*, i32)*)(i8* [[ARRC]], i8* [[SEL]], i32 10)
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// CHECK-NEXT: store i8* [[CALL]], i8** [[OLDOBJ:%.*]], align 8
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val = (array[10] = oldObject);
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// CHECK: [[FOUR:%.*]] = load i8*, i8** [[oldObject:%.*]], align 8
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// CHECK-NEXT: [[THREE:%.*]] = load {{%.*}} [[array:%.*]], align 8
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// CHECK-NEXT: [[FIVE:%.*]] = load i8*, i8** @OBJC_SELECTOR_REFERENCES_.2
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// CHECK-NEXT: [[SIX:%.*]] = bitcast {{%.*}} [[THREE]] to i8*
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// CHECK-NEXT: call void bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to void (i8*, i8*, i8*, i32)*)(i8* [[SIX]], i8* [[FIVE]], i8* [[FOUR]], i32 10)
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// CHECK-NEXT: store i8* [[FOUR]], i8** [[val:%.*]]
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NSMutableDictionary *dictionary;
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id key;
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id newObject;
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oldObject = dictionary[key];
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// CHECK: [[SEVEN:%.*]] = load {{%.*}} [[DICTIONARY:%.*]], align 8
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// CHECK-NEXT: [[EIGHT:%.*]] = load i8*, i8** [[KEY:%.*]], align 8
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// CHECK-NEXT: [[TEN:%.*]] = load i8*, i8** @OBJC_SELECTOR_REFERENCES_.4
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// CHECK-NEXT: [[ELEVEN:%.*]] = bitcast {{%.*}} [[SEVEN]] to i8*
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// CHECK-NEXT: [[CALL1:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i8* (i8*, i8*, i8*)*)(i8* [[ELEVEN]], i8* [[TEN]], i8* [[EIGHT]])
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// CHECK-NEXT: store i8* [[CALL1]], i8** [[oldObject:%.*]], align 8
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val = (dictionary[key] = newObject);
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// CHECK: [[FOURTEEN:%.*]] = load i8*, i8** [[NEWOBJECT:%.*]], align 8
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// CHECK-NEXT: [[TWELVE:%.*]] = load {{%.*}} [[DICTIONARY]], align 8
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// CHECK-NEXT: [[THIRTEEN:%.*]] = load i8*, i8** [[KEY]], align 8
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// CHECK-NEXT: [[SIXTEEN:%.*]] = load i8*, i8** @OBJC_SELECTOR_REFERENCES_.6
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// CHECK-NEXT: [[SEVENTEEN:%.*]] = bitcast {{%.*}} [[TWELVE]] to i8*
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// CHECK-NEXT: call void bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to void (i8*, i8*, i8*, i8*)*)(i8* [[SEVENTEEN]], i8* [[SIXTEEN]], i8* [[FOURTEEN]], i8* [[THIRTEEN]])
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// CHECK-NEXT: store i8* [[FOURTEEN]], i8** [[val:%.*]]
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}
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