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a55b68a75e
(Recommit of r266002, with r266011, r266016, and not accidentally including an extra unused/uninitialized element in LibcallRoutineNames) AtomicExpandPass can now lower atomic load, atomic store, atomicrmw, and cmpxchg instructions to __atomic_* library calls, when the target doesn't support atomics of a given size. This is the first step towards moving all atomic lowering from clang into llvm. When all is done, the behavior of __sync_* builtins, __atomic_* builtins, and C11 atomics will be unified. Previously LLVM would pass everything through to the ISelLowering code. There, unsupported atomic instructions would turn into __sync_* library calls. Because of that behavior, Clang currently avoids emitting llvm IR atomic instructions when this would happen, and emits __atomic_* library functions itself, in the frontend. This change makes LLVM able to emit __atomic_* libcalls, and thus will eventually allow clang to depend on LLVM to do the right thing. It is advantageous to do the new lowering to atomic libcalls in AtomicExpandPass, before ISel time, because it's important that all atomic operations for a given size either lower to __atomic_* libcalls (which may use locks), or native instructions which won't. No mixing and matching. At the moment, this code is enabled only for SPARC, as a demonstration. The next commit will expand support to all of the other targets. Differential Revision: http://reviews.llvm.org/D18200 llvm-svn: 266115
510 lines
10 KiB
C++
510 lines
10 KiB
C++
//===-- CodeGen/RuntimeLibcalls.h - Runtime Library Calls -------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines the enum representing the list of runtime library calls
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// the backend may emit during code generation, and also some helper functions.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CODEGEN_RUNTIMELIBCALLS_H
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#define LLVM_CODEGEN_RUNTIMELIBCALLS_H
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#include "llvm/CodeGen/ValueTypes.h"
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namespace llvm {
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namespace RTLIB {
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/// RTLIB::Libcall enum - This enum defines all of the runtime library calls
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/// the backend can emit. The various long double types cannot be merged,
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/// because 80-bit library functions use "xf" and 128-bit use "tf".
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///
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/// When adding PPCF128 functions here, note that their names generally need
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/// to be overridden for Darwin with the xxx$LDBL128 form. See
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/// PPCISelLowering.cpp.
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///
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enum Libcall {
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// Integer
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SHL_I16,
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SHL_I32,
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SHL_I64,
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SHL_I128,
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SRL_I16,
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SRL_I32,
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SRL_I64,
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SRL_I128,
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SRA_I16,
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SRA_I32,
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SRA_I64,
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SRA_I128,
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MUL_I8,
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MUL_I16,
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MUL_I32,
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MUL_I64,
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MUL_I128,
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MULO_I32,
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MULO_I64,
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MULO_I128,
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SDIV_I8,
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SDIV_I16,
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SDIV_I32,
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SDIV_I64,
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SDIV_I128,
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UDIV_I8,
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UDIV_I16,
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UDIV_I32,
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UDIV_I64,
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UDIV_I128,
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SREM_I8,
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SREM_I16,
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SREM_I32,
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SREM_I64,
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SREM_I128,
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UREM_I8,
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UREM_I16,
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UREM_I32,
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UREM_I64,
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UREM_I128,
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SDIVREM_I8,
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SDIVREM_I16,
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SDIVREM_I32,
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SDIVREM_I64,
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SDIVREM_I128,
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UDIVREM_I8,
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UDIVREM_I16,
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UDIVREM_I32,
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UDIVREM_I64,
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UDIVREM_I128,
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NEG_I32,
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NEG_I64,
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// FLOATING POINT
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ADD_F32,
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ADD_F64,
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ADD_F80,
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ADD_F128,
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ADD_PPCF128,
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SUB_F32,
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SUB_F64,
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SUB_F80,
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SUB_F128,
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SUB_PPCF128,
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MUL_F32,
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MUL_F64,
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MUL_F80,
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MUL_F128,
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MUL_PPCF128,
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DIV_F32,
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DIV_F64,
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DIV_F80,
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DIV_F128,
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DIV_PPCF128,
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REM_F32,
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REM_F64,
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REM_F80,
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REM_F128,
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REM_PPCF128,
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FMA_F32,
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FMA_F64,
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FMA_F80,
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FMA_F128,
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FMA_PPCF128,
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POWI_F32,
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POWI_F64,
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POWI_F80,
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POWI_F128,
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POWI_PPCF128,
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SQRT_F32,
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SQRT_F64,
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SQRT_F80,
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SQRT_F128,
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SQRT_PPCF128,
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LOG_F32,
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LOG_F64,
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LOG_F80,
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LOG_F128,
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LOG_PPCF128,
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LOG2_F32,
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LOG2_F64,
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LOG2_F80,
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LOG2_F128,
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LOG2_PPCF128,
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LOG10_F32,
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LOG10_F64,
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LOG10_F80,
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LOG10_F128,
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LOG10_PPCF128,
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EXP_F32,
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EXP_F64,
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EXP_F80,
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EXP_F128,
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EXP_PPCF128,
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EXP2_F32,
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EXP2_F64,
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EXP2_F80,
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EXP2_F128,
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EXP2_PPCF128,
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SIN_F32,
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SIN_F64,
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SIN_F80,
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SIN_F128,
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SIN_PPCF128,
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COS_F32,
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COS_F64,
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COS_F80,
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COS_F128,
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COS_PPCF128,
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SINCOS_F32,
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SINCOS_F64,
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SINCOS_F80,
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SINCOS_F128,
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SINCOS_PPCF128,
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POW_F32,
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POW_F64,
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POW_F80,
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POW_F128,
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POW_PPCF128,
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CEIL_F32,
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CEIL_F64,
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CEIL_F80,
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CEIL_F128,
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CEIL_PPCF128,
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TRUNC_F32,
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TRUNC_F64,
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TRUNC_F80,
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TRUNC_F128,
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TRUNC_PPCF128,
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RINT_F32,
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RINT_F64,
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RINT_F80,
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RINT_F128,
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RINT_PPCF128,
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NEARBYINT_F32,
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NEARBYINT_F64,
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NEARBYINT_F80,
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NEARBYINT_F128,
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NEARBYINT_PPCF128,
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ROUND_F32,
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ROUND_F64,
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ROUND_F80,
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ROUND_F128,
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ROUND_PPCF128,
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FLOOR_F32,
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FLOOR_F64,
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FLOOR_F80,
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FLOOR_F128,
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FLOOR_PPCF128,
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COPYSIGN_F32,
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COPYSIGN_F64,
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COPYSIGN_F80,
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COPYSIGN_F128,
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COPYSIGN_PPCF128,
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FMIN_F32,
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FMIN_F64,
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FMIN_F80,
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FMIN_F128,
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FMIN_PPCF128,
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FMAX_F32,
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FMAX_F64,
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FMAX_F80,
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FMAX_F128,
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FMAX_PPCF128,
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// CONVERSION
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FPEXT_F32_PPCF128,
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FPEXT_F64_PPCF128,
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FPEXT_F64_F128,
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FPEXT_F32_F128,
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FPEXT_F32_F64,
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FPEXT_F16_F32,
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FPROUND_F32_F16,
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FPROUND_F64_F16,
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FPROUND_F80_F16,
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FPROUND_F128_F16,
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FPROUND_PPCF128_F16,
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FPROUND_F64_F32,
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FPROUND_F80_F32,
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FPROUND_F128_F32,
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FPROUND_PPCF128_F32,
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FPROUND_F80_F64,
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FPROUND_F128_F64,
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FPROUND_PPCF128_F64,
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FPTOSINT_F32_I32,
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FPTOSINT_F32_I64,
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FPTOSINT_F32_I128,
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FPTOSINT_F64_I32,
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FPTOSINT_F64_I64,
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FPTOSINT_F64_I128,
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FPTOSINT_F80_I32,
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FPTOSINT_F80_I64,
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FPTOSINT_F80_I128,
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FPTOSINT_F128_I32,
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FPTOSINT_F128_I64,
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FPTOSINT_F128_I128,
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FPTOSINT_PPCF128_I32,
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FPTOSINT_PPCF128_I64,
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FPTOSINT_PPCF128_I128,
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FPTOUINT_F32_I32,
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FPTOUINT_F32_I64,
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FPTOUINT_F32_I128,
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FPTOUINT_F64_I32,
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FPTOUINT_F64_I64,
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FPTOUINT_F64_I128,
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FPTOUINT_F80_I32,
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FPTOUINT_F80_I64,
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FPTOUINT_F80_I128,
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FPTOUINT_F128_I32,
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FPTOUINT_F128_I64,
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FPTOUINT_F128_I128,
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FPTOUINT_PPCF128_I32,
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FPTOUINT_PPCF128_I64,
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FPTOUINT_PPCF128_I128,
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SINTTOFP_I32_F32,
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SINTTOFP_I32_F64,
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SINTTOFP_I32_F80,
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SINTTOFP_I32_F128,
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SINTTOFP_I32_PPCF128,
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SINTTOFP_I64_F32,
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SINTTOFP_I64_F64,
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SINTTOFP_I64_F80,
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SINTTOFP_I64_F128,
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SINTTOFP_I64_PPCF128,
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SINTTOFP_I128_F32,
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SINTTOFP_I128_F64,
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SINTTOFP_I128_F80,
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SINTTOFP_I128_F128,
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SINTTOFP_I128_PPCF128,
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UINTTOFP_I32_F32,
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UINTTOFP_I32_F64,
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UINTTOFP_I32_F80,
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UINTTOFP_I32_F128,
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UINTTOFP_I32_PPCF128,
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UINTTOFP_I64_F32,
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UINTTOFP_I64_F64,
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UINTTOFP_I64_F80,
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UINTTOFP_I64_F128,
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UINTTOFP_I64_PPCF128,
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UINTTOFP_I128_F32,
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UINTTOFP_I128_F64,
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UINTTOFP_I128_F80,
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UINTTOFP_I128_F128,
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UINTTOFP_I128_PPCF128,
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// COMPARISON
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OEQ_F32,
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OEQ_F64,
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OEQ_F128,
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OEQ_PPCF128,
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UNE_F32,
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UNE_F64,
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UNE_F128,
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UNE_PPCF128,
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OGE_F32,
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OGE_F64,
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OGE_F128,
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OGE_PPCF128,
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OLT_F32,
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OLT_F64,
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OLT_F128,
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OLT_PPCF128,
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OLE_F32,
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OLE_F64,
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OLE_F128,
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OLE_PPCF128,
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OGT_F32,
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OGT_F64,
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OGT_F128,
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OGT_PPCF128,
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UO_F32,
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UO_F64,
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UO_F128,
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UO_PPCF128,
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O_F32,
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O_F64,
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O_F128,
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O_PPCF128,
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// MEMORY
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MEMCPY,
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MEMSET,
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MEMMOVE,
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// EXCEPTION HANDLING
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UNWIND_RESUME,
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// Note: there's two sets of atomics libcalls; see
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// <http://llvm.org/docs/Atomics.html> for more info on the
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// difference between them.
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// Atomic '__sync_*' libcalls.
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SYNC_VAL_COMPARE_AND_SWAP_1,
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SYNC_VAL_COMPARE_AND_SWAP_2,
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SYNC_VAL_COMPARE_AND_SWAP_4,
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SYNC_VAL_COMPARE_AND_SWAP_8,
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SYNC_VAL_COMPARE_AND_SWAP_16,
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SYNC_LOCK_TEST_AND_SET_1,
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SYNC_LOCK_TEST_AND_SET_2,
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SYNC_LOCK_TEST_AND_SET_4,
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SYNC_LOCK_TEST_AND_SET_8,
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SYNC_LOCK_TEST_AND_SET_16,
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SYNC_FETCH_AND_ADD_1,
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SYNC_FETCH_AND_ADD_2,
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SYNC_FETCH_AND_ADD_4,
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SYNC_FETCH_AND_ADD_8,
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SYNC_FETCH_AND_ADD_16,
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SYNC_FETCH_AND_SUB_1,
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SYNC_FETCH_AND_SUB_2,
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SYNC_FETCH_AND_SUB_4,
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SYNC_FETCH_AND_SUB_8,
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SYNC_FETCH_AND_SUB_16,
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SYNC_FETCH_AND_AND_1,
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SYNC_FETCH_AND_AND_2,
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SYNC_FETCH_AND_AND_4,
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SYNC_FETCH_AND_AND_8,
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SYNC_FETCH_AND_AND_16,
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SYNC_FETCH_AND_OR_1,
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SYNC_FETCH_AND_OR_2,
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SYNC_FETCH_AND_OR_4,
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SYNC_FETCH_AND_OR_8,
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SYNC_FETCH_AND_OR_16,
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SYNC_FETCH_AND_XOR_1,
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SYNC_FETCH_AND_XOR_2,
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SYNC_FETCH_AND_XOR_4,
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SYNC_FETCH_AND_XOR_8,
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SYNC_FETCH_AND_XOR_16,
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SYNC_FETCH_AND_NAND_1,
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SYNC_FETCH_AND_NAND_2,
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SYNC_FETCH_AND_NAND_4,
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SYNC_FETCH_AND_NAND_8,
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SYNC_FETCH_AND_NAND_16,
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SYNC_FETCH_AND_MAX_1,
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SYNC_FETCH_AND_MAX_2,
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SYNC_FETCH_AND_MAX_4,
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SYNC_FETCH_AND_MAX_8,
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SYNC_FETCH_AND_MAX_16,
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SYNC_FETCH_AND_UMAX_1,
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SYNC_FETCH_AND_UMAX_2,
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SYNC_FETCH_AND_UMAX_4,
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SYNC_FETCH_AND_UMAX_8,
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SYNC_FETCH_AND_UMAX_16,
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SYNC_FETCH_AND_MIN_1,
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SYNC_FETCH_AND_MIN_2,
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SYNC_FETCH_AND_MIN_4,
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SYNC_FETCH_AND_MIN_8,
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SYNC_FETCH_AND_MIN_16,
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SYNC_FETCH_AND_UMIN_1,
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SYNC_FETCH_AND_UMIN_2,
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SYNC_FETCH_AND_UMIN_4,
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SYNC_FETCH_AND_UMIN_8,
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SYNC_FETCH_AND_UMIN_16,
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// Atomic '__atomic_*' libcalls.
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ATOMIC_LOAD,
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ATOMIC_LOAD_1,
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ATOMIC_LOAD_2,
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ATOMIC_LOAD_4,
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ATOMIC_LOAD_8,
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ATOMIC_LOAD_16,
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ATOMIC_STORE,
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ATOMIC_STORE_1,
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ATOMIC_STORE_2,
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ATOMIC_STORE_4,
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ATOMIC_STORE_8,
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ATOMIC_STORE_16,
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ATOMIC_EXCHANGE,
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ATOMIC_EXCHANGE_1,
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ATOMIC_EXCHANGE_2,
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ATOMIC_EXCHANGE_4,
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ATOMIC_EXCHANGE_8,
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ATOMIC_EXCHANGE_16,
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ATOMIC_COMPARE_EXCHANGE,
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ATOMIC_COMPARE_EXCHANGE_1,
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ATOMIC_COMPARE_EXCHANGE_2,
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ATOMIC_COMPARE_EXCHANGE_4,
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ATOMIC_COMPARE_EXCHANGE_8,
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ATOMIC_COMPARE_EXCHANGE_16,
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ATOMIC_FETCH_ADD_1,
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ATOMIC_FETCH_ADD_2,
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ATOMIC_FETCH_ADD_4,
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ATOMIC_FETCH_ADD_8,
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ATOMIC_FETCH_ADD_16,
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ATOMIC_FETCH_SUB_1,
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ATOMIC_FETCH_SUB_2,
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ATOMIC_FETCH_SUB_4,
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ATOMIC_FETCH_SUB_8,
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ATOMIC_FETCH_SUB_16,
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ATOMIC_FETCH_AND_1,
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ATOMIC_FETCH_AND_2,
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ATOMIC_FETCH_AND_4,
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ATOMIC_FETCH_AND_8,
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ATOMIC_FETCH_AND_16,
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ATOMIC_FETCH_OR_1,
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ATOMIC_FETCH_OR_2,
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ATOMIC_FETCH_OR_4,
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ATOMIC_FETCH_OR_8,
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ATOMIC_FETCH_OR_16,
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ATOMIC_FETCH_XOR_1,
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ATOMIC_FETCH_XOR_2,
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ATOMIC_FETCH_XOR_4,
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ATOMIC_FETCH_XOR_8,
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ATOMIC_FETCH_XOR_16,
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ATOMIC_FETCH_NAND_1,
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ATOMIC_FETCH_NAND_2,
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ATOMIC_FETCH_NAND_4,
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ATOMIC_FETCH_NAND_8,
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ATOMIC_FETCH_NAND_16,
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// Stack Protector Fail.
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STACKPROTECTOR_CHECK_FAIL,
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// Deoptimization.
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DEOPTIMIZE,
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UNKNOWN_LIBCALL
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};
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/// getFPEXT - Return the FPEXT_*_* value for the given types, or
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/// UNKNOWN_LIBCALL if there is none.
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Libcall getFPEXT(EVT OpVT, EVT RetVT);
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/// getFPROUND - Return the FPROUND_*_* value for the given types, or
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/// UNKNOWN_LIBCALL if there is none.
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Libcall getFPROUND(EVT OpVT, EVT RetVT);
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/// getFPTOSINT - Return the FPTOSINT_*_* value for the given types, or
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/// UNKNOWN_LIBCALL if there is none.
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Libcall getFPTOSINT(EVT OpVT, EVT RetVT);
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/// getFPTOUINT - Return the FPTOUINT_*_* value for the given types, or
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/// UNKNOWN_LIBCALL if there is none.
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Libcall getFPTOUINT(EVT OpVT, EVT RetVT);
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/// getSINTTOFP - Return the SINTTOFP_*_* value for the given types, or
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/// UNKNOWN_LIBCALL if there is none.
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Libcall getSINTTOFP(EVT OpVT, EVT RetVT);
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/// getUINTTOFP - Return the UINTTOFP_*_* value for the given types, or
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/// UNKNOWN_LIBCALL if there is none.
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Libcall getUINTTOFP(EVT OpVT, EVT RetVT);
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/// Return the SYNC_FETCH_AND_* value for the given opcode and type, or
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/// UNKNOWN_LIBCALL if there is none.
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Libcall getSYNC(unsigned Opc, MVT VT);
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}
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}
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#endif
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