| // REQUIRES: powerpc-registered-target |
| // REQUIRES: asserts |
| // RUN: %clang_cc1 -triple powerpc64-unknown-linux-gnu -emit-llvm -o - %s | FileCheck %s |
| // RUN: %clang_cc1 -triple powerpc-unknown-linux-gnu -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-PPC |
| |
| #include <stdarg.h> |
| |
| struct x { |
| long a; |
| double b; |
| }; |
| |
| void testva (int n, ...) |
| { |
| va_list ap; |
| |
| struct x t = va_arg (ap, struct x); |
| // CHECK: bitcast i8* %{{[a-z.0-9]*}} to %struct.x* |
| // CHECK: bitcast %struct.x* %t to i8* |
| // CHECK: bitcast %struct.x* %{{[0-9]+}} to i8* |
| // CHECK: call void @llvm.memcpy |
| |
| // CHECK-PPC: [[ARRAYDECAY:%.+]] = getelementptr inbounds [1 x %struct.__va_list_tag], [1 x %struct.__va_list_tag]* %ap, i32 0, i32 0 |
| // CHECK-PPC-NEXT: [[GPRPTR:%.+]] = getelementptr inbounds %struct.__va_list_tag, %struct.__va_list_tag* [[ARRAYDECAY]], i32 0, i32 0 |
| // CHECK-PPC-NEXT: [[GPR:%.+]] = load i8, i8* [[GPRPTR]], align 4 |
| // CHECK-PPC-NEXT: [[COND:%.+]] = icmp ult i8 [[GPR]], 8 |
| // CHECK-PPC-NEXT: br i1 [[COND]], label %[[USING_REGS:[a-z_0-9]+]], label %[[USING_OVERFLOW:[a-z_0-9]+]] |
| // |
| // CHECK-PPC:[[USING_REGS]] |
| // CHECK-PPC-NEXT: [[REGSAVE_AREA_P:%.+]] = getelementptr inbounds %struct.__va_list_tag, %struct.__va_list_tag* [[ARRAYDECAY]], i32 0, i32 4 |
| // CHECK-PPC-NEXT: [[REGSAVE_AREA:%.+]] = load i8*, i8** [[REGSAVE_AREA_P]], align 4 |
| // CHECK-PPC-NEXT: [[OFFSET:%.+]] = mul i8 [[GPR]], 4 |
| // CHECK-PPC-NEXT: [[RAW_REGADDR:%.+]] = getelementptr inbounds i8, i8* [[REGSAVE_AREA]], i8 [[OFFSET]] |
| // CHECK-PPC-NEXT: [[REGADDR:%.+]] = bitcast i8* [[RAW_REGADDR]] to %struct.x** |
| // CHECK-PPC-NEXT: [[USED_GPR:%[0-9]+]] = add i8 [[GPR]], 1 |
| // CHECK-PPC-NEXT: store i8 [[USED_GPR]], i8* [[GPRPTR]], align 4 |
| // CHECK-PPC-NEXT: br label %[[CONT:[a-z0-9]+]] |
| // |
| // CHECK-PPC:[[USING_OVERFLOW]] |
| // CHECK-PPC-NEXT: [[OVERFLOW_AREA_P:%[0-9]+]] = getelementptr inbounds %struct.__va_list_tag, %struct.__va_list_tag* [[ARRAYDECAY]], i32 0, i32 3 |
| // CHECK-PPC-NEXT: [[OVERFLOW_AREA:%.+]] = load i8*, i8** [[OVERFLOW_AREA_P]], align 4 |
| // CHECK-PPC-NEXT: [[MEMADDR:%.+]] = bitcast i8* [[OVERFLOW_AREA]] to %struct.x** |
| // CHECK-PPC-NEXT: [[NEW_OVERFLOW_AREA:%[0-9]+]] = getelementptr inbounds i8, i8* [[OVERFLOW_AREA]], i32 4 |
| // CHECK-PPC-NEXT: store i8* [[NEW_OVERFLOW_AREA]], i8** [[OVERFLOW_AREA_P]] |
| // CHECK-PPC-NEXT: br label %[[CONT]] |
| // |
| // CHECK-PPC:[[CONT]] |
| // CHECK-PPC-NEXT: [[VAARG_ADDR:%[a-z.0-9]+]] = phi %struct.x** [ [[REGADDR]], %[[USING_REGS]] ], [ [[MEMADDR]], %[[USING_OVERFLOW]] ] |
| // CHECK-PPC-NEXT: [[AGGR:%[a-z0-9]+]] = load %struct.x*, %struct.x** [[VAARG_ADDR]] |
| // CHECK-PPC-NEXT: [[DEST:%[0-9]+]] = bitcast %struct.x* %t to i8* |
| // CHECK-PPC-NEXT: [[SRC:%.+]] = bitcast %struct.x* [[AGGR]] to i8* |
| // CHECK-PPC-NEXT: call void @llvm.memcpy.p0i8.p0i8.i32(i8* [[DEST]], i8* [[SRC]], i32 16, i32 8, i1 false) |
| |
| int v = va_arg (ap, int); |
| |
| // CHECK: getelementptr inbounds i8, i8* %{{[a-z.0-9]*}}, i64 4 |
| // CHECK: bitcast i8* %{{[0-9]+}} to i32* |
| // CHECK-PPC: [[ARRAYDECAY:%[a-z0-9]+]] = getelementptr inbounds [1 x %struct.__va_list_tag], [1 x %struct.__va_list_tag]* %ap, i32 0, i32 0 |
| // CHECK-PPC-NEXT: [[GPRPTR:%.+]] = getelementptr inbounds %struct.__va_list_tag, %struct.__va_list_tag* [[ARRAYDECAY]], i32 0, i32 0 |
| // CHECK-PPC-NEXT: [[GPR:%.+]] = load i8, i8* [[GPRPTR]], align 4 |
| // CHECK-PPC-NEXT: [[COND:%.+]] = icmp ult i8 [[GPR]], 8 |
| // CHECK-PPC-NEXT: br i1 [[COND]], label %[[USING_REGS:.+]], label %[[USING_OVERFLOW:.+]]{{$}} |
| // |
| // CHECK-PPC:[[USING_REGS]] |
| // CHECK-PPC-NEXT: [[REGSAVE_AREA_P:%.+]] = getelementptr inbounds %struct.__va_list_tag, %struct.__va_list_tag* [[ARRAYDECAY]], i32 0, i32 4 |
| // CHECK-PPC-NEXT: [[REGSAVE_AREA:%.+]] = load i8*, i8** [[REGSAVE_AREA_P]], align 4 |
| // CHECK-PPC-NEXT: [[OFFSET:%.+]] = mul i8 [[GPR]], 4 |
| // CHECK-PPC-NEXT: [[RAW_REGADDR:%.+]] = getelementptr inbounds i8, i8* [[REGSAVE_AREA]], i8 [[OFFSET]] |
| // CHECK-PPC-NEXT: [[REGADDR:%.+]] = bitcast i8* [[RAW_REGADDR]] to i32* |
| // CHECK-PPC-NEXT: [[USED_GPR:%[0-9]+]] = add i8 [[GPR]], 1 |
| // CHECK-PPC-NEXT: store i8 [[USED_GPR]], i8* [[GPRPTR]], align 4 |
| // CHECK-PPC-NEXT: br label %[[CONT:[a-z0-9]+]] |
| // |
| // CHECK-PPC:[[USING_OVERFLOW]] |
| // CHECK-PPC-NEXT: [[OVERFLOW_AREA_P:%[0-9]+]] = getelementptr inbounds %struct.__va_list_tag, %struct.__va_list_tag* [[ARRAYDECAY]], i32 0, i32 3 |
| // CHECK-PPC-NEXT: [[OVERFLOW_AREA:%.+]] = load i8*, i8** [[OVERFLOW_AREA_P]], align 4 |
| // CHECK-PPC-NEXT: [[MEMADDR:%.+]] = bitcast i8* [[OVERFLOW_AREA]] to i32* |
| // CHECK-PPC-NEXT: [[NEW_OVERFLOW_AREA:%[0-9]+]] = getelementptr inbounds i8, i8* [[OVERFLOW_AREA]], i32 4 |
| // CHECK-PPC-NEXT: store i8* [[NEW_OVERFLOW_AREA]], i8** [[OVERFLOW_AREA_P]] |
| // CHECK-PPC-NEXT: br label %[[CONT]] |
| // |
| // CHECK-PPC:[[CONT]] |
| // CHECK-PPC-NEXT: [[VAARG_ADDR:%[a-z.0-9]+]] = phi i32* [ [[REGADDR]], %[[USING_REGS]] ], [ [[MEMADDR]], %[[USING_OVERFLOW]] ] |
| // CHECK-PPC-NEXT: [[THIRTYFIVE:%[0-9]+]] = load i32, i32* [[VAARG_ADDR]] |
| // CHECK-PPC-NEXT: store i32 [[THIRTYFIVE]], i32* %v, align 4 |
| |
| #ifdef __powerpc64__ |
| __int128_t u = va_arg (ap, __int128_t); |
| #endif |
| // CHECK: bitcast i8* %{{[a-z.0-9]+}} to i128* |
| // CHECK-NEXT: load i128, i128* %{{[0-9]+}} |
| } |