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comparison gcc/testsuite/g++.dg/torture/pr92152.C @ 152:2b5abeee2509

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update gcc11
author anatofuz
date Mon, 25 May 2020 07:50:57 +0900
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145:1830386684a0 152:2b5abeee2509
1 /* { dg-do run } */
2 using size_t = decltype (sizeof (0));
3 using uint64_t = unsigned long long;
4
5 namespace HPHP {
6
7 inline void bitvec_set(uint64_t* bits, size_t index) {
8 bits[index / 64] |= 1ull << (index % 64);
9 }
10
11 namespace jit {
12 ///////////////////////////////////////////////////////////////////////////////
13
14 struct VregSet {
15 struct Block;
16
17 VregSet() : blocks{} { blocks.data[1] = 1LL << 0x30; };
18
19 VregSet(const VregSet& o)
20 : blocks{o.blocks}
21 {
22 }
23
24 bool any() const {
25 if (!isExtended()) return blocks.any();
26 return true;
27 }
28 void removePhys() {
29 auto const b = !isExtended() ? &blocks : extended.blocks;
30 b->data[0] = 0;
31 b->data[1] = 0;
32 }
33 static constexpr size_t kBitsPerBlock = 256;
34 bool isExtended() const {
35 return extended.data[1] & (1ULL << (kExtendedBit % 64));
36 }
37
38 static constexpr size_t kExtendedBit = 127;
39
40 struct Block {
41 bool any() const {
42 return data[0] | data[1];
43 }
44 uint64_t data[2];
45 };
46 struct Extended {
47 uint64_t data[2];
48 Block* blocks;
49 };
50
51 union {
52 Block blocks{};
53 Extended extended;
54 };
55 };
56
57 //////////////////////////////////////////////////////////////////////
58
59
60 __attribute__((noinline))
61 bool test(VregSet&& c) {
62 auto copy = c;
63 copy.removePhys();
64 return copy.any();
65 }
66 ///////////////////////////////////////////////////////////////////////////////
67 }}
68 ///////////////////////////////////////////////////////////////////////////////
69
70 int main() {
71 if (HPHP::jit::test(HPHP::jit::VregSet{}))
72 __builtin_abort ();
73 return 0;
74 }