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
224 lines
6.1 KiB
Plaintext
224 lines
6.1 KiB
Plaintext
// RUN: %clang_cc1 %s -triple=x86_64-apple-darwin10 -std=c++11 -emit-llvm -debug-info-kind=limited -o - | FileCheck %s
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class S {
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public:
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S& operator = (const S&);
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S (const S&);
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S ();
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};
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struct CGRect {
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CGRect & operator = (const CGRect &);
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};
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@interface I {
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S position;
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CGRect bounds;
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}
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@property(assign, nonatomic) S position;
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@property CGRect bounds;
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@property CGRect frame;
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- (void)setFrame:(CGRect)frameRect;
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- (CGRect)frame;
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- (void) initWithOwner;
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- (CGRect)extent;
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- (void)dealloc;
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@end
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@implementation I
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@synthesize position;
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@synthesize bounds;
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@synthesize frame;
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// CHECK: define internal void @"\01-[I setPosition:]"
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// CHECK: call dereferenceable({{[0-9]+}}) %class.S* @_ZN1SaSERKS_
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// CHECK-NEXT: ret void
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// Don't attach debug locations to the prologue instructions. These were
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// leaking over from the previous function emission by accident.
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// CHECK: define internal void @"\01-[I setBounds:]"({{.*}} {
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// CHECK-NOT: !dbg
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// CHECK: call void @llvm.dbg.declare
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- (void)setFrame:(CGRect)frameRect {}
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- (CGRect)frame {return bounds;}
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- (void)initWithOwner {
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I* _labelLayer;
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CGRect labelLayerFrame = self.bounds;
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labelLayerFrame = self.bounds;
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_labelLayer.frame = labelLayerFrame;
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}
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// rdar://8366604
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- (void)dealloc
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{
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CGRect cgrect = self.extent;
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}
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- (struct CGRect)extent {return bounds;}
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@end
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// CHECK-LABEL: define i32 @main
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// CHECK: call void @_ZN1SC1ERKS_(%class.S* [[AGGTMP:%[a-zA-Z0-9\.]+]], %class.S* dereferenceable({{[0-9]+}}) {{%[a-zA-Z0-9\.]+}})
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// CHECK: call void bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to void (i8*, i8*, %class.S*)*)(i8* {{%[a-zA-Z0-9\.]+}}, i8* {{%[a-zA-Z0-9\.]+}}, %class.S* [[AGGTMP]])
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// CHECK-NEXT: ret i32 0
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int main() {
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I *i;
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S s1;
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i.position = s1;
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return 0;
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}
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// rdar://8379892
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// CHECK-LABEL: define void @_Z1fP1A
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// CHECK: call void @_ZN1XC1Ev(%struct.X* [[LVTEMP:%[a-zA-Z0-9\.]+]])
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// CHECK: call void @_ZN1XC1ERKS_(%struct.X* [[AGGTMP:%[a-zA-Z0-9\.]+]], %struct.X* dereferenceable({{[0-9]+}}) [[LVTEMP]])
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// CHECK: call void bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to void (i8*, i8*, %struct.X*)*)({{.*}} %struct.X* [[AGGTMP]])
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struct X {
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X();
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X(const X&);
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~X();
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};
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@interface A {
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X xval;
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}
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- (X)x;
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- (void)setX:(X)x;
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@end
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void f(A* a) {
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a.x = X();
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}
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// rdar://21801088
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// Ensure that pseudo-objecet expressions that require the RHS to be
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// rewritten don't result in crashes or redundant emission of code.
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struct B0 { long long x; };
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struct B1 { long long x; }; B1 operator+(B1, B1);
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struct B2 { B1 x; };
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struct B3 { B3(); B1 x; operator B1(); };
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@interface B
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@property B0 b0;
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@property B1 b1;
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@property B2 b2;
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@property B3 b3;
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@end
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int b_makeInt();
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// Note that there's a promotion from int to long long, so
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// the syntactic form of the RHS will be bogus.
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void testB0(B *b) {
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b.b0 = { b_makeInt() };
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}
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void testB1(B *b) {
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b.b1 += { b_makeInt() };
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}
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// CHECK: define void @_Z6testB0P1B([[B:%.*]]*
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// CHECK: [[BVAR:%.*]] = alloca [[B]]*, align 8
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// CHECK: [[TEMP:%.*]] = alloca [[B0:%.*]], align 8
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// CHECK: [[X:%.*]] = getelementptr inbounds [[B0]], [[B0]]* [[TEMP]], i32 0, i32 0
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// CHECK-NEXT: [[T0:%.*]] = call i32 @_Z9b_makeIntv()
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// CHECK-NEXT: [[T1:%.*]] = sext i32 [[T0]] to i64
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// CHECK-NEXT: store i64 [[T1]], i64* [[X]], align 8
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// CHECK: load [[B]]*, [[B]]** [[BVAR]]
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// CHECK-NOT: call
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// CHECK: call void @llvm.memcpy
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// CHECK-NOT: call
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// CHECK: call void bitcast {{.*}} @objc_msgSend
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// CHECK-NOT: call
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// CHECK: ret void
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// CHECK: define void @_Z6testB1P1B([[B]]*
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// CHECK: [[BVAR:%.*]] = alloca [[B]]*, align 8
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// CHECK: load [[B]]*, [[B]]** [[BVAR]]
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// CHECK-NOT: call
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// CHECK: [[T0:%.*]] = call i64 bitcast {{.*}} @objc_msgSend
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// CHECK-NOT: call
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// CHECK: store i64 [[T0]],
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// CHECK-NOT: call
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// CHECK: [[T0:%.*]] = call i32 @_Z9b_makeIntv()
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// CHECK-NEXT: [[T1:%.*]] = sext i32 [[T0]] to i64
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// CHECK-NEXT: store i64 [[T1]], i64* {{.*}}, align 8
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// CHECK-NOT: call
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// CHECK: [[T0:%.*]] = call i64 @_Zpl2B1S_
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// CHECK-NOT: call
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// CHECK: store i64 [[T0]],
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// CHECK-NOT: call
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// CHECK: call void @llvm.memcpy
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// CHECK-NOT: call
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// CHECK: call void bitcast {{.*}} @objc_msgSend
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// CHECK-NOT: call
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// CHECK: ret void
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// Another example of a conversion that needs to be applied
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// in the semantic form.
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void testB2(B *b) {
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b.b2 = { B3() };
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}
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// CHECK: define void @_Z6testB2P1B([[B]]*
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// CHECK: [[BVAR:%.*]] = alloca [[B]]*, align 8
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// CHECK: call void @llvm.dbg.declare(
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// CHECK: call void @_ZN2B3C1Ev(
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// CHECK-NEXT: [[T0:%.*]] = call i64 @_ZN2B3cv2B1Ev(
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// CHECK-NOT: call
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// CHECK: store i64 [[T0]],
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// CHECK: load [[B]]*, [[B]]** [[BVAR]]
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// CHECK-NOT: call
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// CHECK: call void @llvm.memcpy
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// CHECK-NOT: call
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// CHECK: call void bitcast {{.*}} @objc_msgSend
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// CHECK-NOT: call
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// CHECK: ret void
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// A similar test to B, but using overloaded function references.
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struct C1 {
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int x;
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friend C1 operator+(C1, void(&)());
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};
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@interface C
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@property void (*c0)();
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@property C1 c1;
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@end
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void c_helper();
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void c_helper(int);
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void testC0(C *c) {
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c.c0 = c_helper;
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c.c0 = &c_helper;
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}
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// CHECK: define void @_Z6testC0P1C([[C:%.*]]*
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// CHECK: [[CVAR:%.*]] = alloca [[C]]*, align 8
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// CHECK: load [[C]]*, [[C]]** [[CVAR]]
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// CHECK-NOT: call
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// CHECK: call void bitcast {{.*}} @objc_msgSend {{.*}} @_Z8c_helperv
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// CHECK-NOT: call
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// CHECK: call void bitcast {{.*}} @objc_msgSend {{.*}} @_Z8c_helperv
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// CHECK-NOT: call
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// CHECK: ret void
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void testC1(C *c) {
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c.c1 += c_helper;
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}
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// CHECK: define void @_Z6testC1P1C([[C]]*
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// CHECK: [[CVAR:%.*]] = alloca [[C]]*, align 8
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// CHECK: load [[C]]*, [[C]]** [[CVAR]]
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// CHECK-NOT: call
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// CHECK: [[T0:%.*]] = call i32 bitcast {{.*}} @objc_msgSend
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// CHECK-NOT: call
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// CHECK: store i32 [[T0]],
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// CHECK-NOT: call
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// CHECK: [[T0:%.*]] = call i32 @_Zpl2C1RFvvE({{.*}} @_Z8c_helperv
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// CHECK-NOT: call
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// CHECK: store i32 [[T0]],
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// CHECK-NOT: call
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// CHECK: call void @llvm.memcpy
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// CHECK-NOT: call
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// CHECK: call void bitcast {{.*}} @objc_msgSend
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// CHECK-NOT: call
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// CHECK: ret void
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