// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception #include "../assembly.h" // long double __floatdixf(di_int a); #ifdef __i386__ // This routine has some extra memory traffic, loading the 64-bit input via two // 32-bit loads, then immediately storing it back to the stack via a single 64-bit // store. This is to avoid a write-small, read-large stall. // However, if callers of this routine can be safely assumed to store the argument // via a 64-bt store, this is unnecessary memory traffic, and should be avoided. // It can be turned off by defining the TRUST_CALLERS_USE_64_BIT_STORES macro. .text .balign 4 DEFINE_COMPILERRT_FUNCTION(__floatdixf) #ifndef TRUST_CALLERS_USE_64_BIT_STORES movd 4(%esp), %xmm0 movd 8(%esp), %xmm1 punpckldq %xmm1, %xmm0 movq %xmm0, 4(%esp) #endif fildll 4(%esp) ret END_COMPILERRT_FUNCTION(__floatdixf) #endif // __i386__ NO_EXEC_STACK_DIRECTIVE |