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 // 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 23 // CHECK-PPC-NEXT: [[GPRPTR:%[a-z0-9]+]] = bitcast %struct.__va_list_tag* [[ARRAYDECAY]] to i8* 24 // CHECK-PPC-NEXT: [[ZERO:%[0-9]+]] = ptrtoint i8* [[GPRPTR]] to i32 25 // CHECK-PPC-NEXT: [[ONE:%[0-9]+]] = add i32 [[ZERO]], 1 26 // CHECK-PPC-NEXT: [[TWO:%[0-9]+]] = inttoptr i32 [[ONE]] to i8* 27 // CHECK-PPC-NEXT: [[THREE:%[0-9]+]] = add i32 [[ONE]], 3 28 // CHECK-PPC-NEXT: [[FOUR:%[0-9]+]] = inttoptr i32 [[THREE]] to i8** 29 // CHECK-PPC-NEXT: [[FIVE:%[0-9]+]] = add i32 [[THREE]], 4 30 // CHECK-PPC-NEXT: [[SIX:%[0-9]+]] = inttoptr i32 [[FIVE]] to i8** 31 // CHECK-PPC-NEXT: [[GPR:%[a-z0-9]+]] = load i8, i8* [[GPRPTR]] 32 // CHECK-PPC-NEXT: [[FPR:%[a-z0-9]+]] = load i8, i8* [[TWO]] 33 // CHECK-PPC-NEXT: [[OVERFLOW_AREA:%[a-z_0-9]+]] = load i8*, i8** [[FOUR]] 34 // CHECK-PPC-NEXT: [[SEVEN:%[0-9]+]] = ptrtoint i8* [[OVERFLOW_AREA]] to i32 35 // CHECK-PPC-NEXT: [[REGSAVE_AREA:%[a-z_0-9]+]] = load i8*, i8** [[SIX]] 36 // CHECK-PPC-NEXT: [[EIGHT:%[0-9]+]] = ptrtoint i8* [[REGSAVE_AREA]] to i32 37 // CHECK-PPC-NEXT: [[COND:%[a-z0-9]+]] = icmp ult i8 [[GPR]], 8 38 // CHECK-PPC-NEXT: [[NINE:%[0-9]+]] = mul i8 [[GPR]], 4 39 // CHECK-PPC-NEXT: [[TEN:%[0-9]+]] = sext i8 [[NINE]] to i32 40 // CHECK-PPC-NEXT: [[ELEVEN:%[0-9]+]] = add i32 [[EIGHT]], [[TEN]] 41 // CHECK-PPC-NEXT: br i1 [[COND]], label [[USING_REGS:%[a-z_0-9]+]], label [[USING_OVERFLOW:%[a-z_0-9]+]] 42 // 43 // CHECK-PPC1:[[USING_REGS]] 44 // CHECK-PPC: [[TWELVE:%[0-9]+]] = inttoptr i32 [[ELEVEN]] to %struct.x* 45 // CHECK-PPC-NEXT: [[THIRTEEN:%[0-9]+]] = add i8 [[GPR]], 1 46 // CHECK-PPC-NEXT: store i8 [[THIRTEEN]], i8* [[GPRPTR]] 47 // CHECK-PPC-NEXT: br label [[CONT:%[a-z0-9]+]] 48 // 49 // CHECK-PPC1:[[USING_OVERFLOW]] 50 // CHECK-PPC: [[FOURTEEN:%[0-9]+]] = inttoptr i32 [[SEVEN]] to %struct.x* 51 // CHECK-PPC-NEXT: [[FIFTEEN:%[0-9]+]] = add i32 [[SEVEN]], 4 52 // CHECK-PPC-NEXT: [[SIXTEEN:%[0-9]+]] = inttoptr i32 [[FIFTEEN]] to i8* 53 // CHECK-PPC-NEXT: store i8* [[SIXTEEN]], i8** [[FOUR]] 54 // CHECK-PPC-NEXT: br label [[CONT]] 55 // 56 // CHECK-PPC1:[[CONT]] 57 // CHECK-PPC: [[VAARG_ADDR:%[a-z.0-9]+]] = phi %struct.x* [ [[TWELVE]], [[USING_REGS]] ], [ [[FOURTEEN]], [[USING_OVERFLOW]] ] 58 // CHECK-PPC-NEXT: [[AGGRPTR:%[a-z0-9]+]] = bitcast %struct.x* [[VAARG_ADDR]] to i8** 59 // CHECK-PPC-NEXT: [[AGGR:%[a-z0-9]+]] = load i8*, i8** [[AGGRPTR]] 60 // CHECK-PPC-NEXT: [[SEVENTEEN:%[0-9]+]] = bitcast %struct.x* %t to i8* 61 // CHECK-PPC-NEXT: call void @llvm.memcpy.p0i8.p0i8.i32(i8* [[SEVENTEEN]], i8* [[AGGR]], i32 16, i32 8, i1 false) 62 63 int v = va_arg (ap, int); 64 // CHECK: ptrtoint i8* %{{[a-z.0-9]*}} to i64 65 // CHECK: add i64 %{{[0-9]+}}, 4 66 // CHECK: inttoptr i64 %{{[0-9]+}} to i8* 67 // CHECK: bitcast i8* %{{[0-9]+}} to i32* 68 // CHECK-PPC: [[ARRAYDECAY1:%[a-z0-9]+]] = getelementptr inbounds [1 x %struct.__va_list_tag], [1 x %struct.__va_list_tag]* %ap, i32 0, i32 0 69 // CHECK-PPC-NEXT: [[GPRPTR1:%[a-z0-9]+]] = bitcast %struct.__va_list_tag* [[ARRAYDECAY1]] to i8* 70 // CHECK-PPC-NEXT: [[EIGHTEEN:%[0-9]+]] = ptrtoint i8* [[GPRPTR1]] to i32 71 // CHECK-PPC-NEXT: [[NINETEEN:%[0-9]+]] = add i32 [[EIGHTEEN]], 1 72 // CHECK-PPC-NEXT: [[TWENTY:%[0-9]+]] = inttoptr i32 [[NINETEEN]] to i8* 73 // CHECK-PPC-NEXT: [[TWENTYONE:%[0-9]+]] = add i32 [[NINETEEN]], 3 74 // CHECK-PPC-NEXT: [[TWENTYTWO:%[0-9]+]] = inttoptr i32 [[TWENTYONE]] to i8** 75 // CHECK-PPC-NEXT: [[TWENTYTHREE:%[0-9]+]] = add i32 [[TWENTYONE]], 4 76 // CHECK-PPC-NEXT: [[TWENTYFOUR:%[0-9]+]] = inttoptr i32 [[TWENTYTHREE]] to i8** 77 // CHECK-PPC-NEXT: [[GPR1:%[a-z0-9]+]] = load i8, i8* [[GPRPTR1]] 78 // CHECK-PPC-NEXT: [[FPR1:%[a-z0-9]+]] = load i8, i8* [[TWENTY]] 79 // CHECK-PPC-NEXT: [[OVERFLOW_AREA1:%[a-z_0-9]+]] = load i8*, i8** [[TWENTYTWO]] 80 // CHECK-PPC-NEXT: [[TWENTYFIVE:%[0-9]+]] = ptrtoint i8* [[OVERFLOW_AREA1]] to i32 81 // CHECK-PPC-NEXT: [[REGSAVE_AREA1:%[a-z_0-9]+]] = load i8*, i8** [[TWENTYFOUR]] 82 // CHECK-PPC-NEXT: [[TWENTYSIX:%[0-9]+]] = ptrtoint i8* [[REGSAVE_AREA1]] to i32 83 // CHECK-PPC-NEXT: [[COND1:%[a-z0-9]+]] = icmp ult i8 [[GPR1]], 8 84 // CHECK-PPC-NEXT: [[TWENTYSEVEN:%[0-9]+]] = mul i8 [[GPR1]], 4 85 // CHECK-PPC-NEXT: [[TWENTYEIGHT:%[0-9]+]] = sext i8 [[TWENTYSEVEN]] to i32 86 // CHECK-PPC-NEXT: [[TWENTYNINE:%[0-9]+]] = add i32 [[TWENTYSIX]], [[TWENTYEIGHT]] 87 // CHECK-PPC-NEXT: br i1 [[COND1]], label [[USING_REGS1:%[a-z_0-9]+]], label [[USING_OVERFLOW1:%[a-z_0-9]+]] 88 // 89 // CHECK-PPC1:[[USING_REGS1]]: 90 // CHECK-PPC: [[THIRTY:%[0-9]+]] = inttoptr i32 [[TWENTYNINE]] to i32* 91 // CHECK-PPC-NEXT: [[THIRTYONE:%[0-9]+]] = add i8 [[GPR1]], 1 92 // CHECK-PPC-NEXT: store i8 [[THIRTYONE]], i8* [[GPRPTR1]] 93 // CHECK-PPC-NEXT: br label [[CONT1:%[a-z0-9]+]] 94 // 95 // CHECK-PPC1:[[USING_OVERFLOW1]]: 96 // CHECK-PPC: [[THIRTYTWO:%[0-9]+]] = inttoptr i32 [[TWENTYFIVE]] to i32* 97 // CHECK-PPC-NEXT: [[THIRTYTHREE:%[0-9]+]] = add i32 [[TWENTYFIVE]], 4 98 // CHECK-PPC-NEXT: [[THIRTYFOUR:%[0-9]+]] = inttoptr i32 [[THIRTYTHREE]] to i8* 99 // CHECK-PPC-NEXT: store i8* [[THIRTYFOUR]], i8** [[TWENTYTWO]] 100 // CHECK-PPC-NEXT: br label [[CONT1]] 101 // 102 // CHECK-PPC1:[[CONT1]]: 103 // CHECK-PPC: [[VAARG_ADDR1:%[a-z.0-9]+]] = phi i32* [ [[THIRTY]], [[USING_REGS1]] ], [ [[THIRTYTWO]], [[USING_OVERFLOW1]] ] 104 // CHECK-PPC-NEXT: [[THIRTYFIVE:%[0-9]+]] = load i32, i32* [[VAARG_ADDR1]] 105 // CHECK-PPC-NEXT: store i32 [[THIRTYFIVE]], i32* %v, align 4 106 107 #ifdef __powerpc64__ 108 __int128_t u = va_arg (ap, __int128_t); 109 #endif 110 // CHECK: bitcast i8* %{{[a-z.0-9]+}} to i128* 111 // CHECK-NEXT: load i128, i128* %{{[0-9]+}} 112 } 113
