36f57fbc66
Summary:
This aims to add support for __cpu_model and address Bug 25510. It uses
the code from lib/Support/Host.cpp for cpu detection, and creates
__cpu_model with that info.
Tested on OSX and built on Linux as well (though libgcc is the default).
The use of "asm" required -std=gnu99, hence the cmake change. Corrections
on better addressing this are welcome.
Previously reverted, up for review again to iron out outstanding issues.
Reviewers: llvm-commits, joerg, echristo, mehdi_amini
Subscribers: mehdi_amini
Differential Revision: http://reviews.llvm.org/D22181
llvm-svn: 275484
20 lines
618 B
C
20 lines
618 B
C
//===-- cpu_model_test.c - Test __builtin_cpu_supports -------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file tests __builtin_cpu_supports for the compiler_rt library.
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//
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//===----------------------------------------------------------------------===//
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int main (void) {
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if(__builtin_cpu_supports("avx2"))
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return 4;
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else
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return 3;
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}
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