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Side by Side Diff: crosstest/test_cast.cpp

Issue 1273153002: Subzero. Native 64-bit int arithmetic on x86-64. (Closed) Base URL: https://chromium.googlesource.com/native_client/pnacl-subzero.git@master
Patch Set: Fixes tests & make format Created 5 years, 4 months ago
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1 //===- subzero/crosstest/test_cast.cpp - Cast operator tests --------------===// 1 //===- subzero/crosstest/test_cast.cpp - Cast operator tests --------------===//
2 // 2 //
3 // The Subzero Code Generator 3 // The Subzero Code Generator
4 // 4 //
5 // This file is distributed under the University of Illinois Open Source 5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details. 6 // License. See LICENSE.TXT for details.
7 // 7 //
8 //===----------------------------------------------------------------------===// 8 //===----------------------------------------------------------------------===//
9 // 9 //
10 // Implementation for crosstesting cast operations. 10 // Implementation for crosstesting cast operations.
11 // 11 //
12 //===----------------------------------------------------------------------===// 12 //===----------------------------------------------------------------------===//
13 13
14 // This aims to test all the conversion bitcode instructions across 14 // This aims to test all the conversion bitcode instructions across
15 // all PNaCl primitive data types. 15 // all PNaCl primitive data types.
16 16
17 #include <stdint.h> 17 #include <stdint.h>
18 #include "test_cast.h" 18 #include "test_cast.h"
19 #include "xdefs.h"
19 20
20 template <typename FromType, typename ToType> 21 template <typename FromType, typename ToType>
21 ToType __attribute__((noinline)) cast(FromType a) { 22 ToType __attribute__((noinline)) cast(FromType a) {
22 return (ToType)a; 23 return (ToType)a;
23 } 24 }
24 25
25 template <typename FromType, typename ToType> 26 template <typename FromType, typename ToType>
26 ToType __attribute__((noinline)) castBits(FromType a) { 27 ToType __attribute__((noinline)) castBits(FromType a) {
27 return *(ToType *)&a; 28 return *(ToType *)&a;
28 } 29 }
29 30
30 // The purpose of the following sets of templates is to force 31 // The purpose of the following sets of templates is to force
31 // cast<A,B>() to be instantiated in the resulting bitcode file for 32 // cast<A,B>() to be instantiated in the resulting bitcode file for
32 // all <A,B>, so that they can be called from the driver. 33 // all <A,B>, so that they can be called from the driver.
33 template <typename ToType> class Caster { 34 template <typename ToType> class Caster {
34 static ToType f(bool a) { return cast<bool, ToType>(a); } 35 static ToType f(bool a) { return cast<bool, ToType>(a); }
35 static ToType f(myint8_t a) { return cast<myint8_t, ToType>(a); } 36 static ToType f(myint8_t a) { return cast<myint8_t, ToType>(a); }
36 static ToType f(uint8_t a) { return cast<uint8_t, ToType>(a); } 37 static ToType f(uint8_t a) { return cast<uint8_t, ToType>(a); }
37 static ToType f(int16_t a) { return cast<int16_t, ToType>(a); } 38 static ToType f(int16_t a) { return cast<int16_t, ToType>(a); }
38 static ToType f(uint16_t a) { return cast<uint16_t, ToType>(a); } 39 static ToType f(uint16_t a) { return cast<uint16_t, ToType>(a); }
39 static ToType f(int32_t a) { return cast<int32_t, ToType>(a); } 40 static ToType f(int32_t a) { return cast<int32_t, ToType>(a); }
40 static ToType f(uint32_t a) { return cast<uint32_t, ToType>(a); } 41 static ToType f(uint32_t a) { return cast<uint32_t, ToType>(a); }
41 static ToType f(int64_t a) { return cast<int64_t, ToType>(a); } 42 static ToType f(int64 a) { return cast<int64, ToType>(a); }
42 static ToType f(uint64_t a) { return cast<uint64_t, ToType>(a); } 43 static ToType f(uint64 a) { return cast<uint64, ToType>(a); }
43 static ToType f(float a) { return cast<float, ToType>(a); } 44 static ToType f(float a) { return cast<float, ToType>(a); }
44 static ToType f(double a) { return cast<double, ToType>(a); } 45 static ToType f(double a) { return cast<double, ToType>(a); }
45 }; 46 };
46 47
47 // Comment out the definition of Caster<bool> because clang compiles 48 // Comment out the definition of Caster<bool> because clang compiles
48 // casts to bool using icmp instead of the desired cast instruction. 49 // casts to bool using icmp instead of the desired cast instruction.
49 // The corrected definitions are in test_cast_to_u1.ll. 50 // The corrected definitions are in test_cast_to_u1.ll.
50 51
51 // template class Caster<bool>; 52 // template class Caster<bool>;
52 53
53 template class Caster<myint8_t>; 54 template class Caster<myint8_t>;
54 template class Caster<uint8_t>; 55 template class Caster<uint8_t>;
55 template class Caster<int16_t>; 56 template class Caster<int16_t>;
56 template class Caster<uint16_t>; 57 template class Caster<uint16_t>;
57 template class Caster<int32_t>; 58 template class Caster<int32_t>;
58 template class Caster<uint32_t>; 59 template class Caster<uint32_t>;
59 template class Caster<int64_t>; 60 template class Caster<int64>;
60 template class Caster<uint64_t>; 61 template class Caster<uint64>;
61 template class Caster<float>; 62 template class Caster<float>;
62 template class Caster<double>; 63 template class Caster<double>;
63 64
64 // This function definition forces castBits<A,B>() to be instantiated 65 // This function definition forces castBits<A,B>() to be instantiated
65 // in the resulting bitcode file for the 4 relevant <A,B> 66 // in the resulting bitcode file for the 4 relevant <A,B>
66 // combinations, so that they can be called from the driver. 67 // combinations, so that they can be called from the driver.
67 double makeBitCasters() { 68 double makeBitCasters() {
68 double Result = 0; 69 double Result = 0;
69 Result += castBits<uint32_t, float>(0); 70 Result += castBits<uint32_t, float>(0);
70 Result += castBits<uint64_t, double>(0); 71 Result += castBits<uint64, double>(0);
71 Result += castBits<float, uint32_t>(0); 72 Result += castBits<float, uint32_t>(0);
72 Result += castBits<double, uint64_t>(0); 73 Result += castBits<double, uint64>(0);
73 return Result; 74 return Result;
74 } 75 }
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