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Side by Side Diff: crosstest/test_cast.cpp

Issue 435353002: Subzero: Fix and clean up some cross tests. (Closed) Base URL: https://gerrit.chromium.org/gerrit/p/native_client/pnacl-subzero.git@master
Patch Set: Fix newlines and filename Created 6 years, 4 months ago
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1 //===- subzero/crosstest/test_cast.cpp - Cast operator tests --------------===//
2 //
3 // The Subzero Code Generator
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // Implementation for crosstesting cast operations.
11 //
12 //===----------------------------------------------------------------------===//
13
1 // This aims to test all the conversion bitcode instructions across 14 // This aims to test all the conversion bitcode instructions across
2 // all PNaCl primitive data types. 15 // all PNaCl primitive data types.
3 16
4 #include <stdint.h> 17 #include <stdint.h>
5 #include "test_cast.h" 18 #include "test_cast.h"
6 19
7 template <typename FromType, typename ToType> 20 template <typename FromType, typename ToType>
8 ToType __attribute__((noinline)) cast(FromType a) { 21 ToType __attribute__((noinline)) cast(FromType a) {
9 return (ToType)a; 22 return (ToType)a;
10 } 23 }
11 24
12 template <typename FromType, typename ToType> 25 template <typename FromType, typename ToType>
13 ToType __attribute__((noinline)) castBits(FromType a) { 26 ToType __attribute__((noinline)) castBits(FromType a) {
14 return *(ToType *)&a; 27 return *(ToType *)&a;
15 } 28 }
16 29
17 // The purpose of the following sets of templates is to force 30 // The purpose of the following sets of templates is to force
18 // cast<A,B>() to be instantiated in the resulting bitcode file for 31 // cast<A,B>() to be instantiated in the resulting bitcode file for
19 // all <A,B>, so that they can be called from the driver. 32 // all <A,B>, so that they can be called from the driver.
20 template <typename ToType> class Caster { 33 template <typename ToType> class Caster {
21 static ToType f(bool a) { return cast<bool, ToType>(a); } 34 static ToType f(bool a) { return cast<bool, ToType>(a); }
22 static ToType f(int8_t a) { return cast<int8_t, ToType>(a); } 35 static ToType f(myint8_t a) { return cast<myint8_t, ToType>(a); }
23 static ToType f(uint8_t a) { return cast<uint8_t, ToType>(a); } 36 static ToType f(uint8_t a) { return cast<uint8_t, ToType>(a); }
24 static ToType f(int16_t a) { return cast<int16_t, ToType>(a); } 37 static ToType f(int16_t a) { return cast<int16_t, ToType>(a); }
25 static ToType f(uint16_t a) { return cast<uint16_t, ToType>(a); } 38 static ToType f(uint16_t a) { return cast<uint16_t, ToType>(a); }
26 static ToType f(int32_t a) { return cast<int32_t, ToType>(a); } 39 static ToType f(int32_t a) { return cast<int32_t, ToType>(a); }
27 static ToType f(uint32_t a) { return cast<uint32_t, ToType>(a); } 40 static ToType f(uint32_t a) { return cast<uint32_t, ToType>(a); }
28 static ToType f(int64_t a) { return cast<int64_t, ToType>(a); } 41 static ToType f(int64_t a) { return cast<int64_t, ToType>(a); }
29 static ToType f(uint64_t a) { return cast<uint64_t, ToType>(a); } 42 static ToType f(uint64_t a) { return cast<uint64_t, ToType>(a); }
30 static ToType f(float a) { return cast<float, ToType>(a); } 43 static ToType f(float a) { return cast<float, ToType>(a); }
31 static ToType f(double a) { return cast<double, ToType>(a); } 44 static ToType f(double a) { return cast<double, ToType>(a); }
32 }; 45 };
33 46
34 // Comment out the definition of Caster<bool> because clang compiles 47 // Comment out the definition of Caster<bool> because clang compiles
35 // casts to bool using icmp instead of the desired cast instruction. 48 // casts to bool using icmp instead of the desired cast instruction.
36 // The corrected definitions are in test_cast_to_u1.ll. 49 // The corrected definitions are in test_cast_to_u1.ll.
37 50
38 // template class Caster<bool>; 51 // template class Caster<bool>;
39 52
40 template class Caster<int8_t>; 53 template class Caster<myint8_t>;
41 template class Caster<uint8_t>; 54 template class Caster<uint8_t>;
42 template class Caster<int16_t>; 55 template class Caster<int16_t>;
43 template class Caster<uint16_t>; 56 template class Caster<uint16_t>;
44 template class Caster<int32_t>; 57 template class Caster<int32_t>;
45 template class Caster<uint32_t>; 58 template class Caster<uint32_t>;
46 template class Caster<int64_t>; 59 template class Caster<int64_t>;
47 template class Caster<uint64_t>; 60 template class Caster<uint64_t>;
48 template class Caster<float>; 61 template class Caster<float>;
49 template class Caster<double>; 62 template class Caster<double>;
50 63
51 // This function definition forces castBits<A,B>() to be instantiated 64 // This function definition forces castBits<A,B>() to be instantiated
52 // in the resulting bitcode file for the 4 relevant <A,B> 65 // in the resulting bitcode file for the 4 relevant <A,B>
53 // combinations, so that they can be called from the driver. 66 // combinations, so that they can be called from the driver.
54 double makeBitCasters() { 67 double makeBitCasters() {
55 double Result = 0; 68 double Result = 0;
56 Result += castBits<uint32_t, float>(0); 69 Result += castBits<uint32_t, float>(0);
57 Result += castBits<uint64_t, double>(0); 70 Result += castBits<uint64_t, double>(0);
58 Result += castBits<float, uint32_t>(0); 71 Result += castBits<float, uint32_t>(0);
59 Result += castBits<double, uint64_t>(0); 72 Result += castBits<double, uint64_t>(0);
60 return Result; 73 return Result;
61 } 74 }
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