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New tests for Packed structs.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35686 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel 2007-04-05 17:14:21 +00:00
parent 13eb4c6587
commit f1bc4ad1e5
5 changed files with 123 additions and 0 deletions
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23
test/C++Frontend/2007-04-05-PackedBitFields-1.cpp Normal file
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// RUN: %llvmgxx -S %s -o - | llvm-as -f -o /dev/null
#ifdef PACKED
#define P __attribute__((packed))
#else
#define P
#endif
struct P M_Packed {
unsigned int l_Packed;
unsigned short k_Packed : 6,
i_Packed : 15,
j_Packed : 11;
};
struct M_Packed sM_Packed;
int testM_Packed (void) {
struct M_Packed x;
return (x.i_Packed != 0);
}

24
test/C++Frontend/2007-04-05-PackedBitFieldsOverlap-2.cpp Normal file
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// RUN: %llvmgxx -S %s -o - | llvm-as -f -o /dev/null
#ifdef PACKED
#define P __attribute__((packed))
#else
#define P
#endif
struct P M_Packed {
unsigned long sorted : 1;
unsigned long from_array : 1;
unsigned long mixed_encoding : 1;
unsigned long encoding : 8;
unsigned long count : 21;
};
struct M_Packed sM_Packed;
int testM_Packed (void) {
struct M_Packed x;
return (x.count != 0);
}

24
test/C++Frontend/2007-04-05-PackedBitFieldsOverlap.cpp Normal file
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// RUN: %llvmgxx -S %s -o - | llvm-as -f -o /dev/null
#ifdef PACKED
#define P __attribute__((packed))
#else
#define P
#endif
struct P M_Packed {
unsigned int l_Packed;
unsigned short k_Packed : 6,
i_Packed : 15;
char c;
};
struct M_Packed sM_Packed;
int testM_Packed (void) {
struct M_Packed x;
return (x.i_Packed != 0);
}

27
test/C++Frontend/2007-04-05-PackedBitFieldsSmall.cpp Normal file
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// RUN: %llvmgxx -S %s -o - | llvm-as -f -o /dev/null
#ifdef PACKED
// This is an example where size of Packed struct is smaller then
// the size of bit field type.
#define P __attribute__((packed))
#else
#define P
#endif
struct P M_Packed {
unsigned long long X:50;
unsigned Y:2;
};
struct M_Packed sM_Packed;
int testM_Packed (void) {
struct M_Packed x;
return (0 != x.Y);
}
int testM_Packed2 (void) {
struct M_Packed x;
return (0 != x.X);
}

25
test/C++Frontend/2007-04-05-StructPackedFieldUnpacked.cpp Normal file
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// RUN: %llvmgxx -S %s -o - | llvm-as -f -o /dev/null
#ifdef PACKED
#define P __attribute__((packed))
#else
#define P
#endif
struct UnPacked {
int X;
int Y;
};
struct P M_Packed {
unsigned char A;
struct UnPacked B;
};
struct M_Packed sM_Packed;
int testM_Packed (void) {
struct M_Packed x;
return (x.B.Y != 0);
}