1 files changed, 188 insertions, 0 deletions
diff --git a/test/CodeGenCXX/cxx2a-compare.cpp b/test/CodeGenCXX/cxx2a-compare.cpp
new file mode 100644
index 000000000000..ef6bb5556e22
--- /dev/null
+++ b/test/CodeGenCXX/cxx2a-compare.cpp
@@ -0,0 +1,188 @@
+// RUN: %clang_cc1 -std=c++2a -emit-llvm %s -o - -triple %itanium_abi_triple | \
+// RUN:    FileCheck %s \
+// RUN:          '-DWE="class.std::__1::weak_equality"' \
+// RUN:          '-DSO="class.std::__1::strong_ordering"' \
+// RUN:          '-DSE="class.std::__1::strong_equality"' \
+// RUN:          '-DPO="class.std::__1::partial_ordering"' \
+// RUN:           -DEQ=0 -DLT=-1 -DGT=1 -DUNORD=-127 -DNE=1
+
+#include "Inputs/std-compare.h"
+
+// Ensure we don't emit definitions for the global variables
+// since the builtins shouldn't ODR use them.
+// CHECK-NOT: constant %[[SO]]
+// CHECK-NOT: constant %[[SE]]
+// CHECK-NOT: constant %[[WE]]
+// CHECK-NOT: constant %[[PO]]
+
+// CHECK-LABEL: @_Z11test_signedii
+auto test_signed(int x, int y) {
+  // CHECK: %[[DEST:retval|agg.result]]
+  // CHECK: %cmp.lt = icmp slt i32 %0, %1
+  // CHECK: %sel.lt = select i1 %cmp.lt, i8 [[LT]], i8 [[GT]]
+  // CHECK: %cmp.eq = icmp eq i32 %0, %1
+  // CHECK: %sel.eq = select i1 %cmp.eq, i8 [[EQ]], i8 %sel.lt
+  // CHECK: %__value_ = getelementptr inbounds %[[SO]], %[[SO]]* %[[DEST]]
+  // CHECK: store i8 %sel.eq, i8* %__value_, align 1
+  // CHECK: ret
+  return x <=> y;
+}
+
+// CHECK-LABEL: @_Z13test_unsignedjj
+auto test_unsigned(unsigned x, unsigned y) {
+  // CHECK: %[[DEST:retval|agg.result]]
+  // CHECK: %cmp.lt = icmp ult i32 %0, %1
+  // CHECK: %sel.lt = select i1 %cmp.lt, i8 [[LT]], i8 [[GT]]
+  // CHECK: %cmp.eq = icmp eq i32 %0, %1
+  // CHECK: %sel.eq = select i1 %cmp.eq, i8 [[EQ]], i8 %sel.lt
+  // CHECK: %__value_ = getelementptr inbounds %[[SO]], %[[SO]]* %[[DEST]]
+  // CHECK: store i8 %sel.eq, i8* %__value_
+  // CHECK: ret
+  return x <=> y;
+}
+
+// CHECK-LABEL: @_Z10float_testdd
+auto float_test(double x, double y) {
+  // CHECK: %[[DEST:retval|agg.result]]
+  // CHECK: %cmp.eq = fcmp oeq double %0, %1
+  // CHECK: %sel.eq = select i1 %cmp.eq, i8 [[EQ]], i8 [[UNORD]]
+  // CHECK: %cmp.gt = fcmp ogt double %0, %1
+  // CHECK: %sel.gt = select i1 %cmp.gt, i8 [[GT]], i8 %sel.eq
+  // CHECK: %cmp.lt = fcmp olt double %0, %1
+  // CHECK: %sel.lt = select i1 %cmp.lt, i8 [[LT]], i8 %sel.gt
+  // CHECK: %__value_ = getelementptr inbounds %[[PO]], %[[PO]]* %[[DEST]]
+  // CHECK: store i8 %sel.lt, i8* %__value_
+  // CHECK: ret
+  return x <=> y;
+}
+
+// CHECK-LABEL: @_Z8ptr_testPiS_
+auto ptr_test(int *x, int *y) {
+  // CHECK: %[[DEST:retval|agg.result]]
+  // CHECK: %cmp.lt = icmp ult i32* %0, %1
+  // CHECK: %sel.lt = select i1 %cmp.lt, i8 [[LT]], i8 [[GT]]
+  // CHECK: %cmp.eq = icmp eq i32* %0, %1
+  // CHECK: %sel.eq = select i1 %cmp.eq, i8 [[EQ]], i8 %sel.lt
+  // CHECK: %__value_ = getelementptr inbounds %[[SO]], %[[SO]]* %[[DEST]]
+  // CHECK: store i8 %sel.eq, i8* %__value_, align 1
+  // CHECK: ret
+  return x <=> y;
+}
+
+struct MemPtr {};
+using MemPtrT = void (MemPtr::*)();
+using MemDataT = int(MemPtr::*);
+
+// CHECK-LABEL: @_Z12mem_ptr_testM6MemPtrFvvES1_
+auto mem_ptr_test(MemPtrT x, MemPtrT y) {
+  // CHECK: %[[DEST:retval|agg.result]]
+  // CHECK: %cmp.ptr = icmp eq [[TY:i[0-9]+]] %lhs.memptr.ptr, %rhs.memptr.ptr
+  // CHECK: %cmp.ptr.null = icmp eq [[TY]] %lhs.memptr.ptr, 0
+  // CHECK: %cmp.adj = icmp eq [[TY]] %lhs.memptr.adj, %rhs.memptr.adj
+  // CHECK: %[[OR:.*]] = or i1
+  // CHECK-SAME %cmp.adj
+  // CHECK: %memptr.eq = and i1 %cmp.ptr, %[[OR]]
+  // CHECK: %sel.eq = select i1 %memptr.eq, i8 [[EQ]], i8 [[NE]]
+  // CHECK: %__value_ = getelementptr inbounds %[[SE]], %[[SE]]* %[[DEST]]
+  // CHECK: store i8 %sel.eq, i8* %__value_, align 1
+  // CHECK: ret
+  return x <=> y;
+}
+
+// CHECK-LABEL: @_Z13mem_data_testM6MemPtriS0_
+auto mem_data_test(MemDataT x, MemDataT y) {
+  // CHECK: %[[DEST:retval|agg.result]]
+  // CHECK: %[[CMP:.*]] = icmp eq i{{[0-9]+}} %0, %1
+  // CHECK: %sel.eq = select i1 %[[CMP]], i8 [[EQ]], i8 [[NE]]
+  // CHECK: %__value_ = getelementptr inbounds %[[SE]], %[[SE]]* %[[DEST]]
+  // CHECK: store i8 %sel.eq, i8* %__value_, align 1
+  return x <=> y;
+}
+
+// CHECK-LABEL: @_Z13test_constantv
+auto test_constant() {
+  // CHECK: %[[DEST:retval|agg.result]]
+  // CHECK-NOT: icmp
+  // CHECK: %__value_ = getelementptr inbounds %[[SO]], %[[SO]]* %[[DEST]]
+  // CHECK-NEXT: store i8 -1, i8* %__value_
+  // CHECK: ret
+  const int x = 42;
+  const int y = 101;
+  return x <=> y;
+}
+
+// CHECK-LABEL: @_Z16test_nullptr_objPiDn
+auto test_nullptr_obj(int* x, decltype(nullptr) y) {
+  // CHECK: %[[DEST:retval|agg.result]]
+  // CHECK: %cmp.eq = icmp eq i32* %0, null
+  // CHECK: %sel.eq = select i1 %cmp.eq, i8 [[EQ]], i8 [[NE]]
+  // CHECK: %__value_ = getelementptr inbounds %[[SE]], %[[SE]]* %[[DEST]]
+  // CHECK: store i8 %sel.eq, i8* %__value_, align 1
+  return x <=> y;
+}
+
+// CHECK-LABEL: @_Z18unscoped_enum_testijxy
+void unscoped_enum_test(int i, unsigned u, long long l, unsigned long long ul) {
+  enum EnumA : int { A };
+  enum EnumB : unsigned { B };
+  // CHECK: %[[I:.*]] = load {{.*}} %i.addr
+  // CHECK: icmp slt i32 {{.*}} %[[I]]
+  (void)(A <=> i);
+
+  // CHECK: %[[U:.*]] = load {{.*}} %u.addr
+  // CHECK: icmp ult i32 {{.*}} %[[U]]
+  (void)(A <=> u);
+
+  // CHECK: %[[L:.*]] = load {{.*}} %l.addr
+  // CHECK: icmp slt i64 {{.*}} %[[L]]
+  (void)(A <=> l);
+
+  // CHECK: %[[U2:.*]] = load {{.*}} %u.addr
+  // CHECK: icmp ult i32 {{.*}} %[[U2]]
+  (void)(B <=> u);
+
+  // CHECK: %[[UL:.*]] = load {{.*}} %ul.addr
+  // CHECK: icmp ult i64 {{.*}} %[[UL]]
+  (void)(B <=> ul);
+}
+
+namespace NullptrTest {
+using nullptr_t = decltype(nullptr);
+
+// CHECK-LABEL: @_ZN11NullptrTest4testEDnDn(
+auto test(nullptr_t x, nullptr_t y) {
+  // CHECK: %[[DEST:retval|agg.result]]
+  // CHECK-NOT: select
+  // CHECK: %__value_ = getelementptr inbounds %[[SE]], %[[SE]]* %[[DEST]]
+  // CHECK-NEXT: store i8 [[EQ]], i8* %__value_
+  // CHECK: ret
+  return x <=> y;
+}
+} // namespace NullptrTest
+
+namespace ComplexTest {
+
+auto test_float(_Complex float x, _Complex float y) {
+  // CHECK: %[[DEST:retval|agg.result]]
+  // CHECK: %cmp.eq.r = fcmp oeq float %x.real, %y.real
+  // CHECK: %cmp.eq.i = fcmp oeq float %x.imag, %y.imag
+  // CHECK: %and.eq = and i1 %cmp.eq.r, %cmp.eq.i
+  // CHECK: %sel.eq = select i1 %and.eq, i8 [[EQ]], i8 [[NE]]
+  // CHECK: %__value_ = getelementptr inbounds %[[WE]], %[[WE]]* %[[DEST]]
+  // CHECK: store i8 %sel.eq, i8* %__value_, align 1
+  return x <=> y;
+}
+
+// CHECK-LABEL: @_ZN11ComplexTest8test_intECiS0_(
+auto test_int(_Complex int x, _Complex int y) {
+  // CHECK: %[[DEST:retval|agg.result]]
+  // CHECK: %cmp.eq.r = icmp eq i32 %x.real, %y.real
+  // CHECK: %cmp.eq.i = icmp eq i32 %x.imag, %y.imag
+  // CHECK: %and.eq = and i1 %cmp.eq.r, %cmp.eq.i
+  // CHECK: %sel.eq = select i1 %and.eq, i8 [[EQ]], i8 [[NE]]
+  // CHECK: %__value_ = getelementptr inbounds %[[SE]], %[[SE]]* %[[DEST]]
+  // CHECK: store i8 %sel.eq, i8* %__value_, align 1
+  return x <=> y;
+}
+
+} // namespace ComplexTest