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Add default initialization. Add unit test. 

llvm-svn: 274867
This commit is contained in:
Alina Sbirlea 2016-07-08 16:18:38 +00:00
parent 05241bfe7a
commit 7847598113
2 changed files with 20 additions and 1 deletions
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2
compiler-rt/lib/builtins/cpu_model.c
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@ -706,7 +706,7 @@ struct __processor_model {
unsigned int __cpu_type;
unsigned int __cpu_subtype;
unsigned int __cpu_features[1];
} __cpu_model;
} __cpu_model = { 0, 0, 0, { 0 } };
/* A constructor function that is sets __cpu_model and __cpu_features with
the right values. This needs to run only once. This constructor is

19
compiler-rt/test/builtins/Unit/cpu_model_test.c Normal file
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@ -0,0 +1,19 @@
//===-- cpu_model_test.c - Test __builtin_cpu_supports -------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file tests __builtin_cpu_supports for the compiler_rt library.
//
//===----------------------------------------------------------------------===//
int main (void) {
if(__builtin_cpu_supports("avx2"))
return 4;
else
return 3;
}