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      1 //===- subzero/runtime/szrt.c - Subzero runtime source ----------*- C++ -*-===//
      2 //
      3 //                        The Subzero Code Generator
      4 //
      5 // This file is distributed under the University of Illinois Open Source
      6 // License. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 //
     10 // This file implements wrappers for particular bitcode instructions
     11 // that are too uncommon and complex for a particular target to bother
     12 // implementing directly in Subzero target lowering.  This needs to be
     13 // compiled by some non-Subzero compiler.
     14 //
     15 //===----------------------------------------------------------------------===//
     16 
     17 #include <stdint.h>
     18 
     19 uint32_t __Sz_fptoui_f32_i32(float value) { return (uint32_t)value; }
     20 
     21 uint32_t __Sz_fptoui_f64_i32(double value) { return (uint32_t)value; }
     22 
     23 uint64_t __Sz_fptoui_f32_i64(float Value) { return (uint64_t)Value; }
     24 
     25 uint64_t __Sz_fptoui_f64_i64(double Value) { return (uint64_t)Value; }
     26 
     27 int64_t __Sz_fptosi_f32_i64(float Value) { return (int64_t)Value; }
     28 
     29 int64_t __Sz_fptosi_f64_i64(double Value) { return (int64_t)Value; }
     30 
     31 float __Sz_uitofp_i32_f32(uint32_t Value) { return (float)Value; }
     32 
     33 float __Sz_uitofp_i64_f32(uint64_t Value) { return (float)Value; }
     34 
     35 double __Sz_uitofp_i32_f64(uint32_t Value) { return (double)Value; }
     36 
     37 double __Sz_uitofp_i64_f64(uint64_t Value) { return (double)Value; }
     38 
     39 float __Sz_sitofp_i64_f32(int64_t Value) { return (float)Value; }
     40 
     41 double __Sz_sitofp_i64_f64(int64_t Value) { return (double)Value; }
     42 
     43 // Other helper calls emitted by Subzero but not implemented here:
     44 // Compiler-rt:
     45 //   __udivsi3     - udiv i32
     46 //   __divsi3      - sdiv i32
     47 //   __umodsi3     - urem i32
     48 //   __modsi3      - srem i32
     49 //   __udivdi3     - udiv i64
     50 //   __divdi3      - sdiv i64
     51 //   __umoddi3     - urem i64
     52 //   __moddi3      - srem i64
     53 //   __popcountsi2 - call @llvm.ctpop.i32
     54 //   __popcountdi2 - call @llvm.ctpop.i64
     55 // libm:
     56 //   fmodf - frem f32
     57 //   fmod  - frem f64
     58 // libc:
     59 //   setjmp  - call @llvm.nacl.setjmp
     60 //   longjmp - call @llvm.nacl.longjmp
     61 //   memcpy  - call @llvm.memcpy.p0i8.p0i8.i32
     62 //   memmove - call @llvm.memmove.p0i8.p0i8.i32
     63 //   memset  - call @llvm.memset.p0i8.i32
     64 // unsandboxed_irt:
     65 //   __nacl_read_tp
     66 //   __aeabi_read_tp [arm32 only]
     67 // MIPS runtime library:
     68 // __sync_fetch_and_add_8
     69 // __sync_fetch_and_and_8
     70 // __sync_fetch_and_or_8
     71 // __sync_fetch_and_sub_8
     72 // __sync_fetch_and_xor_8
     73 // __sync_lock_test_and_set_8
     74 // __sync_val_compare_and_swap_8
     75