dafffbe2be
if an ivar offset load is invariant iff inside an instance method and ivar belongs to instance method's class and one of its super class. // rdar://16095748 llvm-svn: 202872
65 lines
1.7 KiB
Objective-C
65 lines
1.7 KiB
Objective-C
// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -Os -emit-llvm %s -o - | FileCheck %s
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// rdar://16095748
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@interface NSObject
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@end
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@interface SampleClass : NSObject {
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@public
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int _value;
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}
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+ (SampleClass*) new;
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@end
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@interface AppDelegate : NSObject
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@end
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extern void foo(int);
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@implementation AppDelegate
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- (void)application
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{
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// Create set of objects in loop
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for(int i = 0; i < 2; i++) {
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SampleClass *sample = [SampleClass new];
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foo (sample->_value);
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}
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}
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@end
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// CHECK: [[IVAR:%.*]] = load i64* @"OBJC_IVAR_$_SampleClass._value", align 8
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// CHECK: [[THREE:%.*]] = bitcast [[ONE:%.*]]* [[CALL:%.*]] to i8*
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// CHECK: [[ADDPTR:%.*]] = getelementptr inbounds i8* [[THREE]], i64 [[IVAR]]
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// CHECK: [[FOUR:%.*]] = bitcast i8* [[ADDPTR]] to i32*
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// CHECK: [[FIVE:%.*]] = load i32* [[FOUR]], align 4
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// CHECK: tail call void @foo(i32 [[FIVE]])
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@implementation SampleClass
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+ (SampleClass*) new { return 0; }
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- (void) SampleClassApplication
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{
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// Create set of objects in loop
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for(int i = 0; i < 2; i++) {
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SampleClass *sample = [SampleClass new];
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foo (sample->_value);
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}
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}
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@end
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// CHECK: [[ZERO:%.*]] = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_", align 8, !invariant.load
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// CHECK: [[IVAR:%.*]] = load i64* @"OBJC_IVAR_$_SampleClass._value", align 8, !invariant.load
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@interface Sample : SampleClass @end
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@implementation Sample
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- (void) SampleApplication
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{
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// Create set of objects in loop
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for(int i = 0; i < 2; i++) {
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SampleClass *sample = [SampleClass new];
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foo (sample->_value);
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}
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}
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@end
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// CHECK: [[ZERO:%.*]] = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_", align 8, !invariant.load
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// CHECK: [[IVAR:%.*]] = load i64* @"OBJC_IVAR_$_SampleClass._value", align 8, !invariant.load
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