1 // REQUIRES: powerpc-registered-target 2 // REQUIRES: asserts 3 // RUN: %clang_cc1 -triple powerpc64-unknown-linux-gnu -emit-llvm -o - %s | FileCheck %s 4 // RUN: %clang_cc1 -triple powerpc-unknown-linux-gnu -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-PPC 5 6 #include <stdarg.h> 7 8 struct x { 9 long a; 10 double b; 11 }; 12 13 void testva (int n, ...) 14 { 15 va_list ap; 16 17 struct x t = va_arg (ap, struct x); 18 // CHECK: bitcast i8* %{{[a-z.0-9]*}} to %struct.x* 19 // CHECK: bitcast %struct.x* %t to i8* 20 // CHECK: bitcast %struct.x* %{{[0-9]+}} to i8* 21 // CHECK: call void @llvm.memcpy 22 23 // CHECK-PPC: [[ARRAYDECAY:%.+]] = getelementptr inbounds [1 x %struct.__va_list_tag], [1 x %struct.__va_list_tag]* %ap, i32 0, i32 0 24 // CHECK-PPC-NEXT: [[GPRPTR:%.+]] = getelementptr inbounds %struct.__va_list_tag, %struct.__va_list_tag* [[ARRAYDECAY]], i32 0, i32 0 25 // CHECK-PPC-NEXT: [[GPR:%.+]] = load i8, i8* [[GPRPTR]], align 4 26 // CHECK-PPC-NEXT: [[COND:%.+]] = icmp ult i8 [[GPR]], 8 27 // CHECK-PPC-NEXT: br i1 [[COND]], label %[[USING_REGS:[a-z_0-9]+]], label %[[USING_OVERFLOW:[a-z_0-9]+]] 28 // 29 // CHECK-PPC:[[USING_REGS]] 30 // CHECK-PPC-NEXT: [[REGSAVE_AREA_P:%.+]] = getelementptr inbounds %struct.__va_list_tag, %struct.__va_list_tag* [[ARRAYDECAY]], i32 0, i32 4 31 // CHECK-PPC-NEXT: [[REGSAVE_AREA:%.+]] = load i8*, i8** [[REGSAVE_AREA_P]], align 4 32 // CHECK-PPC-NEXT: [[OFFSET:%.+]] = mul i8 [[GPR]], 4 33 // CHECK-PPC-NEXT: [[RAW_REGADDR:%.+]] = getelementptr inbounds i8, i8* [[REGSAVE_AREA]], i8 [[OFFSET]] 34 // CHECK-PPC-NEXT: [[REGADDR:%.+]] = bitcast i8* [[RAW_REGADDR]] to %struct.x** 35 // CHECK-PPC-NEXT: [[USED_GPR:%[0-9]+]] = add i8 [[GPR]], 1 36 // CHECK-PPC-NEXT: store i8 [[USED_GPR]], i8* [[GPRPTR]], align 4 37 // CHECK-PPC-NEXT: br label %[[CONT:[a-z0-9]+]] 38 // 39 // CHECK-PPC:[[USING_OVERFLOW]] 40 // CHECK-PPC-NEXT: [[OVERFLOW_AREA_P:%[0-9]+]] = getelementptr inbounds %struct.__va_list_tag, %struct.__va_list_tag* [[ARRAYDECAY]], i32 0, i32 3 41 // CHECK-PPC-NEXT: [[OVERFLOW_AREA:%.+]] = load i8*, i8** [[OVERFLOW_AREA_P]], align 4 42 // CHECK-PPC-NEXT: %{{[0-9]+}} = ptrtoint i8* %argp.cur to i32 43 // CHECK-PPC-NEXT: %{{[0-9]+}} = add i32 %{{[0-9]+}}, 7 44 // CHECK-PPC-NEXT: %{{[0-9]+}} = and i32 %{{[0-9]+}}, -8 45 // CHECK-PPC-NEXT: %argp.cur.aligned = inttoptr i32 %{{[0-9]+}} to i8* 46 // CHECK-PPC-NEXT: [[MEMADDR:%.+]] = bitcast i8* %argp.cur.aligned to %struct.x** 47 // CHECK-PPC-NEXT: [[NEW_OVERFLOW_AREA:%[0-9]+]] = getelementptr inbounds i8, i8* %argp.cur.aligned, i32 4 48 // CHECK-PPC-NEXT: store i8* [[NEW_OVERFLOW_AREA:%[0-9]+]], i8** [[OVERFLOW_AREA_P]], align 4 49 // CHECK-PPC-NEXT: br label %[[CONT]] 50 // 51 // CHECK-PPC:[[CONT]] 52 // CHECK-PPC-NEXT: [[VAARG_ADDR:%[a-z.0-9]+]] = phi %struct.x** [ [[REGADDR]], %[[USING_REGS]] ], [ [[MEMADDR]], %[[USING_OVERFLOW]] ] 53 // CHECK-PPC-NEXT: [[AGGR:%[a-z0-9]+]] = load %struct.x*, %struct.x** [[VAARG_ADDR]] 54 // CHECK-PPC-NEXT: [[DEST:%[0-9]+]] = bitcast %struct.x* %t to i8* 55 // CHECK-PPC-NEXT: [[SRC:%.+]] = bitcast %struct.x* [[AGGR]] to i8* 56 // CHECK-PPC-NEXT: call void @llvm.memcpy.p0i8.p0i8.i32(i8* [[DEST]], i8* [[SRC]], i32 16, i32 8, i1 false) 57 58 int v = va_arg (ap, int); 59 60 // CHECK: getelementptr inbounds i8, i8* %{{[a-z.0-9]*}}, i64 4 61 // CHECK: bitcast i8* %{{[0-9]+}} to i32* 62 // 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 63 // CHECK-PPC-NEXT: [[GPRPTR:%.+]] = getelementptr inbounds %struct.__va_list_tag, %struct.__va_list_tag* [[ARRAYDECAY]], i32 0, i32 0 64 // CHECK-PPC-NEXT: [[GPR:%.+]] = load i8, i8* [[GPRPTR]], align 4 65 // CHECK-PPC-NEXT: [[COND:%.+]] = icmp ult i8 [[GPR]], 8 66 // CHECK-PPC-NEXT: br i1 [[COND]], label %[[USING_REGS:.+]], label %[[USING_OVERFLOW:.+]]{{$}} 67 // 68 // CHECK-PPC:[[USING_REGS]] 69 // CHECK-PPC-NEXT: [[REGSAVE_AREA_P:%.+]] = getelementptr inbounds %struct.__va_list_tag, %struct.__va_list_tag* [[ARRAYDECAY]], i32 0, i32 4 70 // CHECK-PPC-NEXT: [[REGSAVE_AREA:%.+]] = load i8*, i8** [[REGSAVE_AREA_P]], align 4 71 // CHECK-PPC-NEXT: [[OFFSET:%.+]] = mul i8 [[GPR]], 4 72 // CHECK-PPC-NEXT: [[RAW_REGADDR:%.+]] = getelementptr inbounds i8, i8* [[REGSAVE_AREA]], i8 [[OFFSET]] 73 // CHECK-PPC-NEXT: [[REGADDR:%.+]] = bitcast i8* [[RAW_REGADDR]] to i32* 74 // CHECK-PPC-NEXT: [[USED_GPR:%[0-9]+]] = add i8 [[GPR]], 1 75 // CHECK-PPC-NEXT: store i8 [[USED_GPR]], i8* [[GPRPTR]], align 4 76 // CHECK-PPC-NEXT: br label %[[CONT:[a-z0-9]+]] 77 // 78 // CHECK-PPC:[[USING_OVERFLOW]] 79 // CHECK-PPC-NEXT: [[OVERFLOW_AREA_P:%[0-9]+]] = getelementptr inbounds %struct.__va_list_tag, %struct.__va_list_tag* [[ARRAYDECAY]], i32 0, i32 3 80 // CHECK-PPC-NEXT: [[OVERFLOW_AREA:%.+]] = load i8*, i8** [[OVERFLOW_AREA_P]], align 4 81 // CHECK-PPC-NEXT: [[MEMADDR:%.+]] = bitcast i8* [[OVERFLOW_AREA]] to i32* 82 // CHECK-PPC-NEXT: [[NEW_OVERFLOW_AREA:%[0-9]+]] = getelementptr inbounds i8, i8* [[OVERFLOW_AREA]], i32 4 83 // CHECK-PPC-NEXT: store i8* [[NEW_OVERFLOW_AREA]], i8** [[OVERFLOW_AREA_P]] 84 // CHECK-PPC-NEXT: br label %[[CONT]] 85 // 86 // CHECK-PPC:[[CONT]] 87 // CHECK-PPC-NEXT: [[VAARG_ADDR:%[a-z.0-9]+]] = phi i32* [ [[REGADDR]], %[[USING_REGS]] ], [ [[MEMADDR]], %[[USING_OVERFLOW]] ] 88 // CHECK-PPC-NEXT: [[THIRTYFIVE:%[0-9]+]] = load i32, i32* [[VAARG_ADDR]] 89 // CHECK-PPC-NEXT: store i32 [[THIRTYFIVE]], i32* %v, align 4 90 91 #ifdef __powerpc64__ 92 __int128_t u = va_arg (ap, __int128_t); 93 #endif 94 // CHECK: bitcast i8* %{{[a-z.0-9]+}} to i128* 95 // CHECK-NEXT: load i128, i128* %{{[0-9]+}} 96 } 97
