6e938effaa
Summary: Upstream LLVM is changing the the prototypes of the @llvm.memcpy/memmove/memset intrinsics. This change updates the Clang tests for this change. The @llvm.memcpy/memmove/memset intrinsics currently have an explicit argument which is required to be a constant integer. It represents the alignment of the dest (and source), and so must be the minimum of the actual alignment of the two. This change removes the alignment argument in favour of placing the alignment attribute on the source and destination pointers of the memory intrinsic call. For example, code which used to read: call void @llvm.memcpy.p0i8.p0i8.i32(i8* %dest, i8* %src, i32 100, i32 4, i1 false) will now read call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 4 %dest, i8* align 4 %src, i32 100, i1 false) At this time the source and destination alignments must be the same (Step 1). Step 2 of the change, to be landed shortly, will relax that contraint and allow the source and destination to have different alignments. llvm-svn: 322964
194 lines
4.8 KiB
C++
194 lines
4.8 KiB
C++
// RUN: %clang_cc1 -triple x86_64-apple-darwin -emit-llvm -o - %s | FileCheck %s
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extern "C" int printf(...);
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int init = 100;
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struct M {
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int iM;
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M() : iM(init++) {}
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};
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struct N {
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int iN;
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N() : iN(200) {}
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N(N const & arg){this->iN = arg.iN; }
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};
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struct P {
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int iP;
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P() : iP(init++) {}
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};
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// CHECK-LABEL: define linkonce_odr void @_ZN1XC1ERKS_(%struct.X* %this, %struct.X* dereferenceable({{[0-9]+}})) unnamed_addr
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struct X : M, N, P { // ...
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X() : f1(1.0), d1(2.0), i1(3), name("HELLO"), bf1(0xff), bf2(0xabcd),
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au_i1(1234), au1_4("MASKED") {}
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P p0;
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void pr() {
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printf("iM = %d iN = %d, m1.iM = %d\n", iM, iN, m1.iM);
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printf("im = %d p0.iP = %d, p1.iP = %d\n", iP, p0.iP, p1.iP);
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printf("f1 = %f d1 = %f i1 = %d name(%s) \n", f1, d1, i1, name);
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printf("bf1 = %x bf2 = %x\n", bf1, bf2);
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printf("au_i2 = %d\n", au_i2);
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printf("au1_1 = %s\n", au1_1);
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}
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M m1;
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P p1;
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float f1;
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double d1;
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int i1;
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const char *name;
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unsigned bf1 : 8;
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unsigned bf2 : 16;
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int arr[2];
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_Complex float complex;
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union {
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int au_i1;
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int au_i2;
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};
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union {
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const char * au1_1;
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float au1_2;
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int au1_3;
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const char * au1_4;
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};
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};
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static int ix = 1;
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// class with user-defined copy constructor.
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struct S {
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S() : iS(ix++) { }
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S(const S& arg) { *this = arg; }
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int iS;
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};
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// class with trivial copy constructor.
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struct I {
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I() : iI(ix++) { }
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int iI;
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};
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struct XM {
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XM() { }
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double dXM;
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S ARR_S[3][4][2];
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void pr() {
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for (unsigned i = 0; i < 3; i++)
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for (unsigned j = 0; j < 4; j++)
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for (unsigned k = 0; k < 2; k++)
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printf("ARR_S[%d][%d][%d] = %d\n", i,j,k, ARR_S[i][j][k].iS);
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for (unsigned i = 0; i < 3; i++)
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for (unsigned k = 0; k < 2; k++)
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printf("ARR_I[%d][%d] = %d\n", i,k, ARR_I[i][k].iI);
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}
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I ARR_I[3][2];
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};
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int main() {
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X a;
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X b(a);
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b.pr();
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X x;
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X c(x);
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c.pr();
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XM m0;
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XM m1 = m0;
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m1.pr();
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}
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struct A {
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};
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struct B : A {
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A &a;
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};
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void f(const B &b1) {
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B b2(b1);
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}
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// PR6628
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namespace PR6628 {
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struct T {
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T();
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~T();
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double d;
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};
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struct A {
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A(const A &other, const T &t = T(), const T& t2 = T());
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};
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struct B : A {
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A a1;
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A a2;
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A a[10];
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};
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// Force the copy constructor to be synthesized.
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void f(B b1) {
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B b2 = b1;
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}
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// CHECK: define linkonce_odr dereferenceable({{[0-9]+}}) [[A:%.*]]* @_ZN12rdar138169401AaSERKS0_(
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// CHECK: [[THIS:%.*]] = load [[A]]*, [[A]]**
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// CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[A]], [[A]]* [[THIS]], i32 0, i32 1
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// CHECK-NEXT: [[OTHER:%.*]] = load [[A]]*, [[A]]**
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// CHECK-NEXT: [[T2:%.*]] = getelementptr inbounds [[A]], [[A]]* [[OTHER]], i32 0, i32 1
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// CHECK-NEXT: [[T4:%.*]] = bitcast i16* [[T0]] to i8*
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// CHECK-NEXT: [[T5:%.*]] = bitcast i16* [[T2]] to i8*
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// CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 8 [[T4]], i8* align 8 [[T5]], i64 8, i1 false)
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// CHECK-NEXT: ret [[A]]* [[THIS]]
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// CHECK-LABEL: define linkonce_odr void @_ZN6PR66281BC2ERKS0_(%"struct.PR6628::B"* %this, %"struct.PR6628::B"* dereferenceable({{[0-9]+}})) unnamed_addr
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// CHECK: call void @_ZN6PR66281TC1Ev
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// CHECK: call void @_ZN6PR66281TC1Ev
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// CHECK: call void @_ZN6PR66281AC2ERKS0_RKNS_1TES5_
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// CHECK: call void @_ZN6PR66281TD1Ev
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// CHECK: call void @_ZN6PR66281TD1Ev
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// CHECK: call void @_ZN6PR66281TC1Ev
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// CHECK: call void @_ZN6PR66281TC1Ev
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// CHECK: call void @_ZN6PR66281AC1ERKS0_RKNS_1TES5_
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// CHECK: call void @_ZN6PR66281TD1Ev
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// CHECK: call void @_ZN6PR66281TD1Ev
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// CHECK: call void @_ZN6PR66281TC1Ev
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// CHECK: call void @_ZN6PR66281TC1Ev
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// CHECK: call void @_ZN6PR66281AC1ERKS0_RKNS_1TES5_
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// CHECK: call void @_ZN6PR66281TD1Ev
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// CHECK: call void @_ZN6PR66281TD1Ev
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// CHECK-LABEL: define linkonce_odr void @_ZN12rdar138169401AC2ERKS0_(
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// CHECK: [[THIS:%.*]] = load [[A]]*, [[A]]**
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// CHECK-NEXT: [[T0:%.*]] = bitcast [[A]]* [[THIS]] to i32 (...)***
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// CHECK-NEXT: store i32 (...)** bitcast (i8** getelementptr inbounds ({ [4 x i8*] }, { [4 x i8*] }* @_ZTVN12rdar138169401AE, i32 0, inrange i32 0, i32 2) to i32 (...)**), i32 (...)*** [[T0]]
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// CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[A]], [[A]]* [[THIS]], i32 0, i32 1
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// CHECK-NEXT: [[OTHER:%.*]] = load [[A]]*, [[A]]**
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// CHECK-NEXT: [[T2:%.*]] = getelementptr inbounds [[A]], [[A]]* [[OTHER]], i32 0, i32 1
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// CHECK-NEXT: [[T4:%.*]] = bitcast i16* [[T0]] to i8*
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// CHECK-NEXT: [[T5:%.*]] = bitcast i16* [[T2]] to i8*
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// CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 8 [[T4]], i8* align 8 [[T5]], i64 8, i1 false)
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// CHECK-NEXT: ret void
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}
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// rdar://13816940
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// Test above because things get weirdly re-ordered.
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namespace rdar13816940 {
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struct A {
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virtual ~A();
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unsigned short a : 1;
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unsigned short : 15;
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unsigned other;
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};
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void test(A &a) {
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A x = a; // force copy constructor into existence
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x = a; // also force the copy assignment operator
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}
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}
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