86 lines
4.6 KiB
C
86 lines
4.6 KiB
C
// REQUIRES: powerpc-registered-target
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// REQUIRES: asserts
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// RUN: %clang_cc1 -triple powerpc64-unknown-linux-gnu -emit-llvm -o - %s | FileCheck %s
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// RUN: %clang_cc1 -triple powerpc-unknown-linux-gnu -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-PPC
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// RUN: %clang_cc1 -triple powerpc64-ibm-aix-xcoff -emit-llvm -o - %s | FileCheck %s
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#include <stdarg.h>
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struct x {
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long a;
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double b;
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};
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void testva (int n, ...)
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{
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va_list ap;
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struct x t = va_arg (ap, struct x);
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// CHECK: call void @llvm.memcpy
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// CHECK-PPC: [[ARRAYDECAY:%.+]] = getelementptr inbounds [1 x %struct.__va_list_tag], ptr %ap, i32 0, i32 0
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// CHECK-PPC-NEXT: [[GPRPTR:%.+]] = getelementptr inbounds %struct.__va_list_tag, ptr [[ARRAYDECAY]], i32 0, i32 0
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// CHECK-PPC-NEXT: [[GPR:%.+]] = load i8, ptr [[GPRPTR]], align 4
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// CHECK-PPC-NEXT: [[COND:%.+]] = icmp ult i8 [[GPR]], 8
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// CHECK-PPC-NEXT: br i1 [[COND]], label %[[USING_REGS:[a-z_0-9]+]], label %[[USING_OVERFLOW:[a-z_0-9]+]]
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//
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// CHECK-PPC:[[USING_REGS]]
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// CHECK-PPC-NEXT: [[REGSAVE_AREA_P:%.+]] = getelementptr inbounds %struct.__va_list_tag, ptr [[ARRAYDECAY]], i32 0, i32 4
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// CHECK-PPC-NEXT: [[REGSAVE_AREA:%.+]] = load ptr, ptr [[REGSAVE_AREA_P]], align 4
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// CHECK-PPC-NEXT: [[OFFSET:%.+]] = mul i8 [[GPR]], 4
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// CHECK-PPC-NEXT: [[RAW_REGADDR:%.+]] = getelementptr inbounds i8, ptr [[REGSAVE_AREA]], i8 [[OFFSET]]
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// CHECK-PPC-NEXT: [[USED_GPR:%[0-9]+]] = add i8 [[GPR]], 1
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// CHECK-PPC-NEXT: store i8 [[USED_GPR]], ptr [[GPRPTR]], align 4
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// CHECK-PPC-NEXT: br label %[[CONT:[a-z0-9]+]]
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//
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// CHECK-PPC:[[USING_OVERFLOW]]
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// CHECK-PPC-NEXT: store i8 8, ptr [[GPRPTR]], align 4
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// CHECK-PPC-NEXT: [[OVERFLOW_AREA_P:%[0-9]+]] = getelementptr inbounds %struct.__va_list_tag, ptr [[ARRAYDECAY]], i32 0, i32 3
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// CHECK-PPC-NEXT: [[OVERFLOW_AREA:%.+]] = load ptr, ptr [[OVERFLOW_AREA_P]], align 4
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// CHECK-PPC-NEXT: [[GEP_ALIGN:%[0-9]+]] = getelementptr inbounds i8, ptr %argp.cur, i32 7
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// CHECK-PPC-NEXT: %argp.cur.aligned = call ptr @llvm.ptrmask.p0.i32(ptr [[GEP_ALIGN]], i32 -8)
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// CHECK-PPC-NEXT: [[NEW_OVERFLOW_AREA:%[0-9]+]] = getelementptr inbounds i8, ptr %argp.cur.aligned, i32 4
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// CHECK-PPC-NEXT: store ptr [[NEW_OVERFLOW_AREA:%[0-9]+]], ptr [[OVERFLOW_AREA_P]], align 4
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// CHECK-PPC-NEXT: br label %[[CONT]]
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//
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// CHECK-PPC:[[CONT]]
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// CHECK-PPC-NEXT: [[VAARG_ADDR:%[a-z.0-9]+]] = phi ptr [ [[RAW_REGADDR]], %[[USING_REGS]] ], [ %argp.cur.aligned, %[[USING_OVERFLOW]] ]
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// CHECK-PPC-NEXT: [[AGGR:%[a-z0-9]+]] = load ptr, ptr [[VAARG_ADDR]]
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// CHECK-PPC-NEXT: call void @llvm.memcpy.p0.p0.i32(ptr align 8 %t, ptr align 8 [[AGGR]], i32 16, i1 false)
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int v = va_arg (ap, int);
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// CHECK: getelementptr inbounds i8, ptr %{{[a-z.0-9]*}}, i64 4
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// CHECK-PPC: [[ARRAYDECAY:%[a-z0-9]+]] = getelementptr inbounds [1 x %struct.__va_list_tag], ptr %ap, i32 0, i32 0
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// CHECK-PPC-NEXT: [[GPRPTR:%.+]] = getelementptr inbounds %struct.__va_list_tag, ptr [[ARRAYDECAY]], i32 0, i32 0
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// CHECK-PPC-NEXT: [[GPR:%.+]] = load i8, ptr [[GPRPTR]], align 4
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// CHECK-PPC-NEXT: [[COND:%.+]] = icmp ult i8 [[GPR]], 8
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// CHECK-PPC-NEXT: br i1 [[COND]], label %[[USING_REGS:.+]], label %[[USING_OVERFLOW:.+]]{{$}}
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//
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// CHECK-PPC:[[USING_REGS]]
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// CHECK-PPC-NEXT: [[REGSAVE_AREA_P:%.+]] = getelementptr inbounds %struct.__va_list_tag, ptr [[ARRAYDECAY]], i32 0, i32 4
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// CHECK-PPC-NEXT: [[REGSAVE_AREA:%.+]] = load ptr, ptr [[REGSAVE_AREA_P]], align 4
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// CHECK-PPC-NEXT: [[OFFSET:%.+]] = mul i8 [[GPR]], 4
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// CHECK-PPC-NEXT: [[RAW_REGADDR:%.+]] = getelementptr inbounds i8, ptr [[REGSAVE_AREA]], i8 [[OFFSET]]
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// CHECK-PPC-NEXT: [[USED_GPR:%[0-9]+]] = add i8 [[GPR]], 1
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// CHECK-PPC-NEXT: store i8 [[USED_GPR]], ptr [[GPRPTR]], align 4
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// CHECK-PPC-NEXT: br label %[[CONT:[a-z0-9]+]]
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//
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// CHECK-PPC:[[USING_OVERFLOW]]
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// CHECK-PPC-NEXT: store i8 8, ptr [[GPRPTR]], align 4
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// CHECK-PPC-NEXT: [[OVERFLOW_AREA_P:%[0-9]+]] = getelementptr inbounds %struct.__va_list_tag, ptr [[ARRAYDECAY]], i32 0, i32 3
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// CHECK-PPC-NEXT: [[OVERFLOW_AREA:%.+]] = load ptr, ptr [[OVERFLOW_AREA_P]], align 4
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// CHECK-PPC-NEXT: [[NEW_OVERFLOW_AREA:%[0-9]+]] = getelementptr inbounds i8, ptr [[OVERFLOW_AREA]], i32 4
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// CHECK-PPC-NEXT: store ptr [[NEW_OVERFLOW_AREA]], ptr [[OVERFLOW_AREA_P]]
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// CHECK-PPC-NEXT: br label %[[CONT]]
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//
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// CHECK-PPC:[[CONT]]
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// CHECK-PPC-NEXT: [[VAARG_ADDR:%[a-z.0-9]+]] = phi ptr [ [[RAW_REGADDR]], %[[USING_REGS]] ], [ [[OVERFLOW_AREA]], %[[USING_OVERFLOW]] ]
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// CHECK-PPC-NEXT: [[THIRTYFIVE:%[0-9]+]] = load i32, ptr [[VAARG_ADDR]]
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// CHECK-PPC-NEXT: store i32 [[THIRTYFIVE]], ptr %v, align 4
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#ifdef __powerpc64__
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__int128_t u = va_arg (ap, __int128_t);
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#endif
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// CHECK: load i128, ptr %argp.cur3
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}
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