mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-01-31 11:37:35 +00:00
e75ffde09e
You can now build Cosmopolitan with Clang:
make -j8 MODE=llvm
o/llvm/examples/hello.com
The assembler and linker code is now friendly to LLVM too.
So it's not needed to configure Clang to use binutils under
the hood. If you love LLVM then you can now use pure LLVM.
42 lines
708 B
ArmAsm
42 lines
708 B
ArmAsm
// 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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#include "third_party/compiler_rt/assembly.h"
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// float __floatundisf(du_int a);
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#ifdef __x86_64__
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.section .yoink
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nopl huge_compiler_rt_license(%rip)
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.previous
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CONST_SECTION
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.balign 16
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two:
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.single 2.0
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#define REL_ADDR(_a) (_a)(%rip)
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.text
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.balign 4
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DEFINE_COMPILERRT_FUNCTION(__floatundisf)
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movq $1, %rsi
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testq %rdi, %rdi
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js 1f
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cvtsi2ssq %rdi, %xmm0
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ret
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1: andq %rdi, %rsi
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shrq %rdi
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orq %rsi, %rdi
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cvtsi2ssq %rdi, %xmm0
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mulss REL_ADDR(two), %xmm0
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ret
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END_COMPILERRT_FUNCTION(__floatundisf)
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#endif // __x86_64__
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NO_EXEC_STACK_DIRECTIVE
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