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llvm-project/clang/test/CodeGenCXX/pr20897.cpp

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__declspec is not a core Clang language extension. Instead, require -fms-extensions or -fborland to enable the language extension. Note: __declspec is also temporarily enabled when compiling for a CUDA target because there are implementation details relying on __declspec(property) support currently. When those details change, __declspec should be disabled for CUDA targets. llvm-svn: 238238
2015-05-27 03:44:52 +08:00
// RUN: %clang_cc1 -triple i686-windows-msvc -fms-extensions -emit-llvm -std=c++1y -O0 -o - %s | FileCheck %s
MS ABI: Use the correct this arg when generating implict copy ctor We assumed that the incoming this argument would be the last argument. However, this is not true under the MS ABI. This fixes PR20897. llvm-svn: 217642
2014-09-12 07:05:02 +08:00
struct Base {};
// __declspec(dllexport) causes us to export the implicit constructor.
struct __declspec(dllexport) Derived : virtual Base {
[MS] Don't escape MS C++ names with \01 It is not needed after LLVM r327734. Now it will be easier to copy-paste IR symbol names from Clang. llvm-svn: 327738
2018-03-17 04:36:49 +08:00
// CHECK-LABEL: define weak_odr dso_local dllexport x86_thiscallcc %struct.Derived* @"??0Derived@@QAE@ABU0@@Z"
Update Clang tests to handle explicitly typed load changes in LLVM. llvm-svn: 230795
2015-02-28 05:19:58 +08:00
// CHECK: %[[this:.*]] = load %struct.Derived*, %struct.Derived** {{.*}}
MS ABI: Use the correct this arg when generating implict copy ctor We assumed that the incoming this argument would be the last argument. However, this is not true under the MS ABI. This fixes PR20897. llvm-svn: 217642
2014-09-12 07:05:02 +08:00
// CHECK-NEXT: store %struct.Derived* %[[this]], %struct.Derived** %[[retval:.*]]
Update Clang tests to handle explicitly typed gep changes in LLVM. llvm-svn: 230783
2015-02-28 03:18:17 +08:00
// CHECK: %[[dest_a_gep:.*]] = getelementptr inbounds %struct.Derived, %struct.Derived* %[[this]], i32 0, i32 1
Update Clang tests to handle explicitly typed load changes in LLVM. llvm-svn: 230795
2015-02-28 05:19:58 +08:00
// CHECK-NEXT: %[[src_load:.*]] = load %struct.Derived*, %struct.Derived** {{.*}}
Update Clang tests to handle explicitly typed gep changes in LLVM. llvm-svn: 230783
2015-02-28 03:18:17 +08:00
// CHECK-NEXT: %[[src_a_gep:.*]] = getelementptr inbounds %struct.Derived, %struct.Derived* %[[src_load:.*]], i32 0, i32 1
Change memcpy/memove/memset to have dest and source alignment attributes (Step 1). 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
2018-01-20 01:12:54 +08:00
// CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 4 %[[dest_a_gep]], i8* align 4 %[[src_a_gep]], i64 1, i1 false)
Update Clang tests to handle explicitly typed load changes in LLVM. llvm-svn: 230795
2015-02-28 05:19:58 +08:00
// CHECK-NEXT: %[[dest_this:.*]] = load %struct.Derived*, %struct.Derived** %[[retval]]
MS ABI: Use the correct this arg when generating implict copy ctor We assumed that the incoming this argument would be the last argument. However, this is not true under the MS ABI. This fixes PR20897. llvm-svn: 217642
2014-09-12 07:05:02 +08:00
// CHECK-NEXT: ret %struct.Derived* %[[dest_this]]
bool a : 1;
bool b : 1;
};
MS ABI: Use the correct this arg when generating implicit array copy ctor We assumed the last argument of the copy constructor was the this pointer. However, this is not the case under the MS ABI. llvm-svn: 219775
2014-10-15 12:54:54 +08:00
// __declspec(dllexport) causes us to export the implicit copy constructor.
struct __declspec(dllexport) Derived2 : virtual Base {
[MS] Don't escape MS C++ names with \01 It is not needed after LLVM r327734. Now it will be easier to copy-paste IR symbol names from Clang. llvm-svn: 327738
2018-03-17 04:36:49 +08:00
// CHECK-LABEL: define weak_odr dso_local dllexport x86_thiscallcc %struct.Derived2* @"??0Derived2@@QAE@ABU0@@Z"
Update Clang tests to handle explicitly typed load changes in LLVM. llvm-svn: 230795
2015-02-28 05:19:58 +08:00
// CHECK: %[[this:.*]] = load %struct.Derived2*, %struct.Derived2** {{.*}}
MS ABI: Use the correct this arg when generating implicit array copy ctor We assumed the last argument of the copy constructor was the this pointer. However, this is not the case under the MS ABI. llvm-svn: 219775
2014-10-15 12:54:54 +08:00
// CHECK-NEXT: store %struct.Derived2* %[[this]], %struct.Derived2** %[[retval:.*]]
Update Clang tests to handle explicitly typed gep changes in LLVM. llvm-svn: 230783
2015-02-28 03:18:17 +08:00
// CHECK: %[[dest_a_gep:.*]] = getelementptr inbounds %struct.Derived2, %struct.Derived2* %[[this]], i32 0, i32 1
Update Clang tests to handle explicitly typed load changes in LLVM. llvm-svn: 230795
2015-02-28 05:19:58 +08:00
// CHECK-NEXT: %[[src_load:.*]] = load %struct.Derived2*, %struct.Derived2** {{.*}}
Update Clang tests to handle explicitly typed gep changes in LLVM. llvm-svn: 230783
2015-02-28 03:18:17 +08:00
// CHECK-NEXT: %[[src_a_gep:.*]] = getelementptr inbounds %struct.Derived2, %struct.Derived2* %[[src_load:.*]], i32 0, i32 1
MS ABI: Use the correct this arg when generating implicit array copy ctor We assumed the last argument of the copy constructor was the this pointer. However, this is not the case under the MS ABI. llvm-svn: 219775
2014-10-15 12:54:54 +08:00
// CHECK-NEXT: %[[dest_a_bitcast:.*]] = bitcast [1 x i32]* %[[dest_a_gep]] to i8*
// CHECK-NEXT: %[[src_a_bitcast:.*]] = bitcast [1 x i32]* %[[src_a_gep]] to i8*
Change memcpy/memove/memset to have dest and source alignment attributes (Step 1). 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
2018-01-20 01:12:54 +08:00
// CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 4 %[[dest_a_bitcast]], i8* align 4 %[[src_a_bitcast]], i32 4, i1 false)
Update Clang tests to handle explicitly typed load changes in LLVM. llvm-svn: 230795
2015-02-28 05:19:58 +08:00
// CHECK-NEXT: %[[dest_this:.*]] = load %struct.Derived2*, %struct.Derived2** %[[retval]]
MS ABI: Use the correct this arg when generating implicit array copy ctor We assumed the last argument of the copy constructor was the this pointer. However, this is not the case under the MS ABI. llvm-svn: 219775
2014-10-15 12:54:54 +08:00
// CHECK-NEXT: ret %struct.Derived2* %[[dest_this]]
int Array[1];
};