llvm-project/compiler-rt/lib/x86_64/floatundisf.S

30 lines
492 B
ArmAsm

// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// float __floatundisf(du_int a);
#ifdef __x86_64__
.literal4
two: .single 2.0
#define REL_ADDR(_a) (_a)(%rip)
.text
.align 4
.globl ___floatundisf
___floatundisf:
movq $1, %rsi
testq %rdi, %rdi
js 1f
cvtsi2ssq %rdi, %xmm0
ret
1: andq %rdi, %rsi
shrq %rdi
orq %rsi, %rdi
cvtsi2ssq %rdi, %xmm0
mulss REL_ADDR(two), %xmm0
ret
#endif // __x86_64__