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
testva(int n,...)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]* %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* [[GPRPTR]]
32 // CHECK-PPC-NEXT: [[FPR:%[a-z0-9]+]] = load i8* [[TWO]]
33 // CHECK-PPC-NEXT: [[OVERFLOW_AREA:%[a-z_0-9]+]] = load 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** [[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** [[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]* %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* [[GPRPTR1]]
78 // CHECK-PPC-NEXT: [[FPR1:%[a-z0-9]+]] = load i8* [[TWENTY]]
79 // CHECK-PPC-NEXT: [[OVERFLOW_AREA1:%[a-z_0-9]+]] = load 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** [[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* [[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* %{{[0-9]+}}
112 }
113