1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
// RUN: %clang++ -std=c++11 -fno-exceptions -ffast-math -O0 %s -S -emit-llvm -o - | %opt - %OPloadEnzyme %enzyme -S
// RUN: %clang++ -std=c++11 -fno-exceptions -ffast-math -O1 %s -S -emit-llvm -o - | %opt - %OPloadEnzyme %enzyme -S
// RUN: %clang++ -std=c++11 -fno-exceptions -ffast-math -O2 %s -S -emit-llvm -o - | %opt - %OPloadEnzyme %enzyme -S
// RUN: %clang++ -std=c++11 -fno-exceptions -ffast-math -O3 %s -S -emit-llvm -o - | %opt - %OPloadEnzyme %enzyme -S
// RUN: %clang++ -std=c++11 -fno-exceptions -ffast-math -O0 %s -S -emit-llvm -o - | %opt - %OPloadEnzyme %enzyme -enzyme-inline=1 -S
// RUN: %clang++ -std=c++11 -fno-exceptions -ffast-math -O1 %s -S -emit-llvm -o - | %opt - %OPloadEnzyme %enzyme -enzyme-inline=1 -S
// RUN: %clang++ -std=c++11 -fno-exceptions -ffast-math -O2 %s -S -emit-llvm -o - | %opt - %OPloadEnzyme %enzyme -enzyme-inline=1 -S
// RUN: %clang++ -std=c++11 -fno-exceptions -ffast-math -O3 %s -S -emit-llvm -o - | %opt - %OPloadEnzyme %enzyme -enzyme-inline=1 -S
#include "../test_utils.h"
#include <iostream>
#include <sstream>
#include <utility>
extern double __enzyme_autodiff(void*, double);
double fn(double vec) {
std::stringstream testInput("14 1.5 somerandomextrachars");
double in;
float in2;
testInput >> in >> in2;
testInput.ignore();
char ch;
testInput.get(ch);
char foo[5];
const char fdelim = '\t';
testInput.get(foo, 3, fdelim);
// The following two lines cause a segfault with Enzyme
// char bar[5];
// testInput.getline(bar, 3);
return vec * vec * in * in2;
}
int main() {
double x = 2.1;
double dsq = __enzyme_autodiff((void*)fn, x);
APPROX_EQ(dsq, 14 * 1.5 * 2 * x, 1e-7);
}