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https://github.com/Gericom/teak-llvm.git
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104 lines
2.8 KiB
C
104 lines
2.8 KiB
C
//===-- main.c --------------------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include <stdint.h>
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#include <stdio.h>
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#include <string.h>
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int main (int argc, char const *argv[])
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{
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struct Bits
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{
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uint32_t : 1, // Unnamed bitfield
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b1 : 1,
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b2 : 2,
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: 2, // Unnamed bitfield
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b3 : 3,
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: 2, // Unnamed bitfield (this will get removed)
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b4 __attribute__ ((aligned(16))),
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b5 : 5,
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b6 : 6,
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b7 : 7,
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four : 4;
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};
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printf("%lu", sizeof(struct Bits));
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struct Bits bits;
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int i;
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for (i=0; i<(1<<1); i++)
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bits.b1 = i; //// break $source:$line
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for (i=0; i<(1<<2); i++)
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bits.b2 = i; //// break $source:$line
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for (i=0; i<(1<<3); i++)
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bits.b3 = i; //// break $source:$line
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for (i=0; i<(1<<4); i++)
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bits.b4 = i; //// break $source:$line
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for (i=0; i<(1<<5); i++)
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bits.b5 = i; //// break $source:$line
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for (i=0; i<(1<<6); i++)
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bits.b6 = i; //// break $source:$line
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for (i=0; i<(1<<7); i++)
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bits.b7 = i; //// break $source:$line
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for (i=0; i<(1<<4); i++)
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bits.four = i; //// break $source:$line
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struct MoreBits
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{
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uint32_t a : 3;
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uint8_t : 1;
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uint8_t b : 1;
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uint8_t c : 1;
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uint8_t d : 1;
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};
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struct MoreBits more_bits;
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more_bits.a = 3;
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more_bits.b = 0;
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more_bits.c = 1;
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more_bits.d = 0;
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struct EvenMoreBits
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{
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uint8_t b1 : 1, b2 : 1, b3 : 1, b4 : 1, b5 : 1, b6 : 1,
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b7 : 1, b8 : 1, b9 : 1, b10 : 1, b11 : 1, b12 : 1,
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b13 : 1, b14 : 1, b15 : 1, b16 : 1, b17 : 1;
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};
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struct EvenMoreBits even_more_bits;
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memset(&even_more_bits, 0, sizeof(even_more_bits));
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even_more_bits.b1 = 1;
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even_more_bits.b5 = 1;
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even_more_bits.b7 = 1;
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even_more_bits.b13 = 1;
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#pragma pack(1)
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struct PackedBits
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{
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char a;
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uint32_t b : 5,
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c : 27;
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};
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#pragma pack()
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struct PackedBits packed;
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packed.a = 'a';
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packed.b = 10;
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packed.c = 0x7112233;
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struct LargePackedBits {
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uint64_t a: 36;
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uint64_t b: 36;
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} __attribute__((packed));
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struct LargePackedBits large_packed =
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(struct LargePackedBits){ 0xcbbbbaaaa, 0xdffffeeee };
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return 0; //// Set break point at this line.
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}
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