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1// RUN: %clang_cc1 -triple dxil-pc-shadermodel6.0-compute -emit-llvm -disable-llvm-passes -o - -std=hlsl202x %s | FileCheck %s2 3struct Pair {4 int First;5 int Second;6 int getFirst() {7 Pair Another = {5, 10};8 this = Another;9 return this.First;10 }11 int getSecond() {12 this = Pair();13 return Second;14 }15 void operator=(Pair P) {16 First = P.First;17 Second = 2;18 }19};20[numthreads(1, 1, 1)]21void main() {22 Pair Vals = {1, 2};23 Vals.First = Vals.getFirst();24 Vals.Second = Vals.getSecond();25}26 27// This test makes a probably safe assumption that HLSL 202x includes operator overloading for assignment operators.28// CHECK: define linkonce_odr hidden noundef i32 @_ZN4Pair8getFirstEv(ptr noundef nonnull align 1 dereferenceable(8) %this) #0 align 2 {29// CHECK-NEXT:entry:30// CHECK-NEXT:%this.addr = alloca ptr, align 431// CHECK-NEXT:%Another = alloca %struct.Pair, align 132// CHECK-NEXT:%agg.tmp = alloca %struct.Pair, align 133// CHECK-NEXT:store ptr %this, ptr %this.addr, align 434// CHECK-NEXT:%this1 = load ptr, ptr %this.addr, align 435// CHECK-NEXT:%First = getelementptr inbounds nuw %struct.Pair, ptr %Another, i32 0, i32 036// CHECK-NEXT:store i32 5, ptr %First, align 137// CHECK-NEXT:%Second = getelementptr inbounds nuw %struct.Pair, ptr %Another, i32 0, i32 138// CHECK-NEXT:store i32 10, ptr %Second, align 139// CHECK-NEXT:call void @llvm.memcpy.p0.p0.i32(ptr align 1 %agg.tmp, ptr align 1 %Another, i32 8, i1 false)40// CHECK-NEXT:call void @_ZN4PairaSES_(ptr noundef nonnull align 1 dereferenceable(8) %this1, ptr noundef byval(%struct.Pair) align 1 %agg.tmp)41// CHECK-NEXT:%First2 = getelementptr inbounds nuw %struct.Pair, ptr %this1, i32 0, i32 042// CHECK-NEXT:%0 = load i32, ptr %First2, align 143// CHECK-NEXT:ret i32 %044 45// CHECK: define linkonce_odr hidden noundef i32 @_ZN4Pair9getSecondEv(ptr noundef nonnull align 1 dereferenceable(8) %this) #0 align 2 {46// CHECK-NEXT:entry:47// CHECK-NEXT:%this.addr = alloca ptr, align 448// CHECK-NEXT:%agg.tmp = alloca %struct.Pair, align 149// CHECK-NEXT:store ptr %this, ptr %this.addr, align 450// CHECK-NEXT:%this1 = load ptr, ptr %this.addr, align 451// CHECK-NEXT:call void @llvm.memset.p0.i32(ptr align 1 %agg.tmp, i8 0, i32 8, i1 false)52// CHECK-NEXT:call void @_ZN4PairaSES_(ptr noundef nonnull align 1 dereferenceable(8) %this1, ptr noundef byval(%struct.Pair) align 1 %agg.tmp)53// CHECK-NEXT:%Second = getelementptr inbounds nuw %struct.Pair, ptr %this1, i32 0, i32 154// CHECK-NEXT:%0 = load i32, ptr %Second, align 155// CHECK-NEXT:ret i32 %056