// RUN: %clang++ -std=gnu++11 -O2 -g %s -o %t
// RUN: %dexter --fail-lt 1.0 -w \
// RUN: --binary %t --debugger 'lldb' -v -- %s
// RUN: %clang++ -std=gnu++11 -O0 -g %s -o %t
// RUN: %dexter --fail-lt 1.0 -w \
// RUN: --binary %t --debugger 'lldb' -- %s
// REQUIRES: lldb
// Currently getting intermittent failures on darwin.
// UNSUPPORTED: system-windows, system-darwin
//// Check that the debugging experience with __attribute__((optnone)) at O2
//// matches O0. Test simple template functions performing simple arithmetic
//// vector operations and trivial loops.
typedef int int4 __attribute__((ext_vector_type(4)));
template<typename T> struct TypeTraits {};
template<>
struct TypeTraits<int4> {
static const unsigned NumElements = 4;
static const unsigned UnusedField = 0xDEADBEEFU;
static unsigned MysteryNumber;
};
unsigned TypeTraits<int4>::MysteryNumber = 3U;
template<typename T>
__attribute__((optnone))
T test1(T x, T y) {
T tmp = x + y; // DexLabel('break_0')
T tmp2 = tmp + y;
return tmp; // DexLabel('break_1')
}
// DexLimitSteps('1', '1', from_line=ref('break_0'), to_line=ref('break_1'))
//// FIXME: gdb can print this but lldb cannot. Perhaps PR42920?
// \DexExpectWatchValue('TypeTraits<int __attribute__((ext_vector_type(4)))>::NumElements', 4, on_line=ref('break_0'))
// \DexExpectWatchValue('TypeTraits<int __attribute__((ext_vector_type(4)))>::UnusedField', 0xdeadbeef, on_line=ref('break_0'))
// DexExpectWatchValue('x[0]', 1, on_line=ref('break_0'))
// DexExpectWatchValue('x[1]', 2, on_line=ref('break_0'))
// DexExpectWatchValue('x[2]', 3, on_line=ref('break_0'))
// DexExpectWatchValue('x[3]', 4, on_line=ref('break_0'))
// DexExpectWatchValue('y[0]', 5, on_line=ref('break_0'))
// DexExpectWatchValue('y[1]', 6, on_line=ref('break_0'))
// DexExpectWatchValue('y[2]', 7, on_line=ref('break_0'))
// DexExpectWatchValue('y[3]', 8, on_line=ref('break_0'))
// DexExpectWatchValue('tmp[0]', 6, on_line=ref('break_1'))
// DexExpectWatchValue('tmp[1]', 8, on_line=ref('break_1'))
// DexExpectWatchValue('tmp[2]', 10, on_line=ref('break_1'))
// DexExpectWatchValue('tmp[3]', 12, on_line=ref('break_1'))
// DexExpectWatchValue('tmp2[0]', 11, on_line=ref('break_1'))
// DexExpectWatchValue('tmp2[1]', 14, on_line=ref('break_1'))
// DexExpectWatchValue('tmp2[2]', 17, on_line=ref('break_1'))
// DexExpectWatchValue('tmp2[3]', 20, on_line=ref('break_1'))
template<typename T>
__attribute__((optnone))
T test2(T x, T y) {
T tmp = x;
int break_2 = 0; // DexLabel('break_2')
for (unsigned i = 0; i != TypeTraits<T>::NumElements; ++i) {
tmp <<= 1; // DexLabel('break_3')
tmp |= y;
}
tmp[0] >>= TypeTraits<T>::MysteryNumber;
return tmp; // DexLabel('break_5')
}
// DexLimitSteps('1', '1', on_line=ref('break_2'))
// DexExpectWatchValue('x[0]', 6, on_line=ref('break_2'))
// DexExpectWatchValue('x[1]', 8, on_line=ref('break_2'))
// DexExpectWatchValue('x[2]', 10, on_line=ref('break_2'))
// DexExpectWatchValue('x[3]', 12, on_line=ref('break_2'))
// DexExpectWatchValue('y[0]', 5, on_line=ref('break_2'))
// DexExpectWatchValue('y[1]', 6, on_line=ref('break_2'))
// DexExpectWatchValue('y[2]', 7, on_line=ref('break_2'))
// DexExpectWatchValue('y[3]', 8, on_line=ref('break_2'))
// DexExpectWatchValue('tmp[0]', 6, on_line=ref('break_2'))
// DexExpectWatchValue('tmp[1]', 8, on_line=ref('break_2'))
// DexExpectWatchValue('tmp[2]', 10, on_line=ref('break_2'))
// DexExpectWatchValue('tmp[3]', 12, on_line=ref('break_2'))
// DexLimitSteps('i', 3, from_line=ref('break_3'), to_line=ref('break_5'))
// DexExpectWatchValue('tmp[0]', 63, on_line=ref('break_3'))
// DexExpectWatchValue('tmp[1]', 94, on_line=ref('break_3'))
// DexExpectWatchValue('tmp[2]', 95, on_line=ref('break_3'))
// DexExpectWatchValue('tmp[3]', 120, on_line=ref('break_3'))
// DexExpectWatchValue('tmp[0]', 15, on_line=ref('break_5'))
template<typename T>
__attribute__((optnone))
T test3(T InVec) {
T result;
for (unsigned i=0; i != TypeTraits<T>::NumElements; ++i)
result[i] = InVec[i]; // DexLabel('break_6')
return result; // DexLabel('break_7')
}
// DexLimitSteps('i', '3', from_line=ref('break_6'), to_line=ref('break_7'))
// DexExpectWatchValue('InVec[0]', 15, from_line=ref('break_6'), to_line=ref('break_7'))
// DexExpectWatchValue('InVec[1]', 190, from_line=ref('break_6'), to_line=ref('break_7'))
// DexExpectWatchValue('InVec[2]', 191, from_line=ref('break_6'), to_line=ref('break_7'))
// DexExpectWatchValue('InVec[3]', 248, from_line=ref('break_6'), to_line=ref('break_7'))
// DexExpectWatchValue('result[0]', 15, from_line=ref('break_6'), to_line=ref('break_7'))
// DexExpectWatchValue('result[1]', 190, from_line=ref('break_6'), to_line=ref('break_7'))
// DexExpectWatchValue('result[2]', 191, from_line=ref('break_6'), to_line=ref('break_7'))
// DexExpectWatchValue('result[3]', 248, on_line=ref('break_7'))
template<typename T>
__attribute__((optnone))
T test4(T x, T y) {
for (unsigned i=0; i != TypeTraits<T>::NumElements; ++i)
x[i] = (x[i] > y[i])? x[i] : y[i] + TypeTraits<T>::MysteryNumber; // DexLabel('break_11')
return x; // DexLabel('break_12')
}
// DexLimitSteps('1', '1', from_line=ref('break_11'), to_line=ref('break_12'))
//// FIXME: lldb won't print this but gdb unexpectedly says it's optimized out, even at O0.
// \DexExpectWatchValue('TypeTraits<int __attribute__((ext_vector_type(4)))>::MysteryNumber', 3, on_line=ref('break_11'))
// DexExpectWatchValue('i', 0, 1, 2, 3, on_line=ref('break_11'))
// DexExpectWatchValue('x[0]', 1, 8, from_line=ref('break_11'), to_line=ref('break_12'))
// DexExpectWatchValue('x[1]', 2, 9, from_line=ref('break_11'), to_line=ref('break_12'))
// DexExpectWatchValue('x[2]', 3, 10, from_line=ref('break_11'), to_line=ref('break_12'))
// DexExpectWatchValue('x[3]', 4, 11, from_line=ref('break_11'), to_line=ref('break_12'))
// DexExpectWatchValue('y[0]', 5, from_line=ref('break_11'), to_line=ref('break_12'))
// DexExpectWatchValue('y[1]', 6, from_line=ref('break_11'), to_line=ref('break_12'))
// DexExpectWatchValue('y[2]', 7, from_line=ref('break_11'), to_line=ref('break_12'))
// DexExpectWatchValue('y[3]', 8, from_line=ref('break_11'), to_line=ref('break_12'))
int main() {
int4 a = (int4){1,2,3,4};
int4 b = (int4){5,6,7,8};
int4 tmp = test1(a,b);
tmp = test2(tmp,b);
tmp = test3(tmp);
tmp += test4(a,b);
return tmp[0];
}
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