[llvm] r183028 - [APFloat] Added a unittest for APFloat::getZero.

[Rafael Ávila De Espíndola]

Thanks!

Sent from my iPhone

On 2013-06-02, at 5:30, Benjamin Kramer <benny.kra at gmail.com> wrote:

> 
> On 01.06.2013, at 23:37, Rafael Espíndola <rafael.espindola at gmail.com> wrote:
> 
>> looks like an arm buildbot is not happy with this:
>> 
>> http://lab.llvm.org:8011/builders/llvm-armv5-linux/builds/352/steps/compile/logs/stdio
>> 
>> Xerxes, what is the host compiler. It looks like it thinks "long long"
>> is the same thing as "long" :-(
> 
> r183081 adds a workaround, the bot is back to green.
> 
> - Ben
> 
>> 
>> On 31 May 2013 14:43, Michael Gottesman <mgottesman at apple.com> wrote:
>>> Author: mgottesman
>>> Date: Fri May 31 13:43:34 2013
>>> New Revision: 183028
>>> 
>>> URL: http://llvm.org/viewvc/llvm-project?rev=183028&view=rev
>>> Log:
>>> [APFloat] Added a unittest for APFloat::getZero.
>>> 
>>> Modified:
>>>   llvm/trunk/unittests/ADT/APFloatTest.cpp
>>> 
>>> Modified: llvm/trunk/unittests/ADT/APFloatTest.cpp
>>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/unittests/ADT/APFloatTest.cpp?rev=183028&r1=183027&r2=183028&view=diff
>>> ==============================================================================
>>> --- llvm/trunk/unittests/ADT/APFloatTest.cpp (original)
>>> +++ llvm/trunk/unittests/ADT/APFloatTest.cpp Fri May 31 13:43:34 2013
>>> @@ -1274,6 +1274,43 @@ TEST(APFloatTest, getSmallestNormalized)
>>>  EXPECT_TRUE(test.bitwiseIsEqual(expected));
>>> }
>>> 
>>> +TEST(APFloatTest, getZero) {
>>> +  struct {
>>> +    const fltSemantics *semantics;
>>> +    const bool sign;
>>> +    const unsigned long long bitPattern[2];
>>> +    const unsigned bitPatternLength;
>>> +  } GetZeroTest[] = {
>>> +    { &APFloat::IEEEhalf, false, {0, 0}, 1},
>>> +    { &APFloat::IEEEhalf, true, {0x8000, 0}, 1},
>>> +    { &APFloat::IEEEsingle, false, {0, 0}, 1},
>>> +    { &APFloat::IEEEsingle, true, {0x80000000, 0}, 1},
>>> +    { &APFloat::IEEEdouble, false, {0, 0}, 1},
>>> +    { &APFloat::IEEEdouble, true, {0x8000000000000000, 0}, 1},
>>> +    { &APFloat::IEEEquad, false, {0, 0}, 2},
>>> +    { &APFloat::IEEEquad, true, {0, 0x8000000000000000}, 2},
>>> +    { &APFloat::PPCDoubleDouble, false, {0, 0}, 2},
>>> +    { &APFloat::PPCDoubleDouble, true, {0x8000000000000000, 0}, 2},
>>> +    { &APFloat::x87DoubleExtended, false, {0, 0}, 2},
>>> +    { &APFloat::x87DoubleExtended, true, {0, 0x8000}, 2},
>>> +  };
>>> +  const unsigned NumGetZeroTests = 12;
>>> +  for (unsigned i = 0; i < NumGetZeroTests; ++i) {
>>> +    APFloat test = APFloat::getZero(*GetZeroTest[i].semantics,
>>> +                                   GetZeroTest[i].sign);
>>> +    const char *pattern = GetZeroTest[i].sign? "-0x0p+0" : "0x0p+0";
>>> +    APFloat expected = APFloat(*GetZeroTest[i].semantics,
>>> +                              pattern);
>>> +    EXPECT_TRUE(test.isZero());
>>> +    EXPECT_TRUE(GetZeroTest[i].sign? test.isNegative() : !test.isNegative());
>>> +    EXPECT_TRUE(test.bitwiseIsEqual(expected));
>>> +    for (unsigned j = 0, je = GetZeroTest[i].bitPatternLength; j < je; ++j) {
>>> +      EXPECT_EQ(GetZeroTest[i].bitPattern[j],
>>> +               test.bitcastToAPInt().getRawData()[j]);
>>> +    }
>>> +  }
>>> +}
>>> +
>>> TEST(APFloatTest, convert) {
>>>  bool losesInfo;
>>>  APFloat test(APFloat::IEEEdouble, "1.0");
>>> 
>>> 
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