maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
llvm-project/llvm/lib/Target/X86/Utils/X86ShuffleDecode.cpp

178 lines
5.5 KiB
C++
Raw Normal View History

[AVX] Add decode support for VUNPCKLPS/D instructions, both 128-bit and 256-bit forms. Because the number of elements in a vector does not determine the vector type (4 elements could be v4f32 or v4f64), pass the full type of the vector to decode routines. llvm-svn: 126664
2011-03-01 03:06:56 +08:00
//===-- X86ShuffleDecode.cpp - X86 shuffle decode logic -------------------===//
Move x86 specific shuffle mask decoding to its own header, it's also going to be used elsewhere. Also trim trailing whitespaces llvm-svn: 112846
2010-09-03 02:40:13 +08:00
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// Define several functions to decode x86 specific shuffle semantics into a
// generic vector mask.
//
//===----------------------------------------------------------------------===//
[AVX] Recorganize X86ShuffleDecode into its own library (LLVMX86Utils.a) to break cyclic library dependencies between LLVMX86CodeGen.a and LLVMX86AsmParser.a. Previously this code was in a header file and marked static but AVX requires some additional functionality here that won't be used by all clients. Since including unused static functions causes a gcc compiler warning, keeping it as a header would break builds that use -Werror. Putting this in its own library solves both problems at once. llvm-svn: 125765
2011-02-18 03:18:59 +08:00
#include "X86ShuffleDecode.h"
Move x86 specific shuffle mask decoding to its own header, it's also going to be used elsewhere. Also trim trailing whitespaces llvm-svn: 112846
2010-09-03 02:40:13 +08:00
//===----------------------------------------------------------------------===//
// Vector Mask Decoding
//===----------------------------------------------------------------------===//
[AVX] Recorganize X86ShuffleDecode into its own library (LLVMX86Utils.a) to break cyclic library dependencies between LLVMX86CodeGen.a and LLVMX86AsmParser.a. Previously this code was in a header file and marked static but AVX requires some additional functionality here that won't be used by all clients. Since including unused static functions causes a gcc compiler warning, keeping it as a header would break builds that use -Werror. Putting this in its own library solves both problems at once. llvm-svn: 125765
2011-02-18 03:18:59 +08:00
namespace llvm {
Move x86 specific shuffle mask decoding to its own header, it's also going to be used elsewhere. Also trim trailing whitespaces llvm-svn: 112846
2010-09-03 02:40:13 +08:00
Move insertps mask decoding to header file llvm-svn: 112896
2010-09-03 06:43:39 +08:00
void DecodeINSERTPSMask(unsigned Imm, SmallVectorImpl<unsigned> &ShuffleMask) {
// Defaults the copying the dest value.
ShuffleMask.push_back(0);
ShuffleMask.push_back(1);
ShuffleMask.push_back(2);
ShuffleMask.push_back(3);
// Decode the immediate.
unsigned ZMask = Imm & 15;
unsigned CountD = (Imm >> 4) & 3;
unsigned CountS = (Imm >> 6) & 3;
// CountS selects which input element to use.
unsigned InVal = 4+CountS;
// CountD specifies which element of destination to update.
ShuffleMask[CountD] = InVal;
// ZMask zaps values, potentially overriding the CountD elt.
if (ZMask & 1) ShuffleMask[0] = SM_SentinelZero;
if (ZMask & 2) ShuffleMask[1] = SM_SentinelZero;
if (ZMask & 4) ShuffleMask[2] = SM_SentinelZero;
if (ZMask & 8) ShuffleMask[3] = SM_SentinelZero;
}
Move decoding of insertps back to avoid unused warnings in x86 isel lowering, and fix movlhps/movhlps to decode 4 elements shuffles llvm-svn: 112869
2010-09-03 05:51:11 +08:00
// <3,1> or <6,7,2,3>
[AVX] Recorganize X86ShuffleDecode into its own library (LLVMX86Utils.a) to break cyclic library dependencies between LLVMX86CodeGen.a and LLVMX86AsmParser.a. Previously this code was in a header file and marked static but AVX requires some additional functionality here that won't be used by all clients. Since including unused static functions causes a gcc compiler warning, keeping it as a header would break builds that use -Werror. Putting this in its own library solves both problems at once. llvm-svn: 125765
2011-02-18 03:18:59 +08:00
void DecodeMOVHLPSMask(unsigned NElts,
SmallVectorImpl<unsigned> &ShuffleMask) {
Move decoding of insertps back to avoid unused warnings in x86 isel lowering, and fix movlhps/movhlps to decode 4 elements shuffles llvm-svn: 112869
2010-09-03 05:51:11 +08:00
for (unsigned i = NElts/2; i != NElts; ++i)
ShuffleMask.push_back(NElts+i);
Move x86 specific shuffle mask decoding to its own header, it's also going to be used elsewhere. Also trim trailing whitespaces llvm-svn: 112846
2010-09-03 02:40:13 +08:00
Move decoding of insertps back to avoid unused warnings in x86 isel lowering, and fix movlhps/movhlps to decode 4 elements shuffles llvm-svn: 112869
2010-09-03 05:51:11 +08:00
for (unsigned i = NElts/2; i != NElts; ++i)
ShuffleMask.push_back(i);
Move x86 specific shuffle mask decoding to its own header, it's also going to be used elsewhere. Also trim trailing whitespaces llvm-svn: 112846
2010-09-03 02:40:13 +08:00
}
Move decoding of insertps back to avoid unused warnings in x86 isel lowering, and fix movlhps/movhlps to decode 4 elements shuffles llvm-svn: 112869
2010-09-03 05:51:11 +08:00
// <0,2> or <0,1,4,5>
[AVX] Recorganize X86ShuffleDecode into its own library (LLVMX86Utils.a) to break cyclic library dependencies between LLVMX86CodeGen.a and LLVMX86AsmParser.a. Previously this code was in a header file and marked static but AVX requires some additional functionality here that won't be used by all clients. Since including unused static functions causes a gcc compiler warning, keeping it as a header would break builds that use -Werror. Putting this in its own library solves both problems at once. llvm-svn: 125765
2011-02-18 03:18:59 +08:00
void DecodeMOVLHPSMask(unsigned NElts,
SmallVectorImpl<unsigned> &ShuffleMask) {
Move decoding of insertps back to avoid unused warnings in x86 isel lowering, and fix movlhps/movhlps to decode 4 elements shuffles llvm-svn: 112869
2010-09-03 05:51:11 +08:00
for (unsigned i = 0; i != NElts/2; ++i)
ShuffleMask.push_back(i);
Move x86 specific shuffle mask decoding to its own header, it's also going to be used elsewhere. Also trim trailing whitespaces llvm-svn: 112846
2010-09-03 02:40:13 +08:00
Move decoding of insertps back to avoid unused warnings in x86 isel lowering, and fix movlhps/movhlps to decode 4 elements shuffles llvm-svn: 112869
2010-09-03 05:51:11 +08:00
for (unsigned i = 0; i != NElts/2; ++i)
ShuffleMask.push_back(NElts+i);
Move x86 specific shuffle mask decoding to its own header, it's also going to be used elsewhere. Also trim trailing whitespaces llvm-svn: 112846
2010-09-03 02:40:13 +08:00
}
[AVX] Recorganize X86ShuffleDecode into its own library (LLVMX86Utils.a) to break cyclic library dependencies between LLVMX86CodeGen.a and LLVMX86AsmParser.a. Previously this code was in a header file and marked static but AVX requires some additional functionality here that won't be used by all clients. Since including unused static functions causes a gcc compiler warning, keeping it as a header would break builds that use -Werror. Putting this in its own library solves both problems at once. llvm-svn: 125765
2011-02-18 03:18:59 +08:00
void DecodePSHUFMask(unsigned NElts, unsigned Imm,
SmallVectorImpl<unsigned> &ShuffleMask) {
Move x86 specific shuffle mask decoding to its own header, it's also going to be used elsewhere. Also trim trailing whitespaces llvm-svn: 112846
2010-09-03 02:40:13 +08:00
for (unsigned i = 0; i != NElts; ++i) {
ShuffleMask.push_back(Imm % NElts);
Imm /= NElts;
}
}
[AVX] Recorganize X86ShuffleDecode into its own library (LLVMX86Utils.a) to break cyclic library dependencies between LLVMX86CodeGen.a and LLVMX86AsmParser.a. Previously this code was in a header file and marked static but AVX requires some additional functionality here that won't be used by all clients. Since including unused static functions causes a gcc compiler warning, keeping it as a header would break builds that use -Werror. Putting this in its own library solves both problems at once. llvm-svn: 125765
2011-02-18 03:18:59 +08:00
void DecodePSHUFHWMask(unsigned Imm,
SmallVectorImpl<unsigned> &ShuffleMask) {
Move x86 specific shuffle mask decoding to its own header, it's also going to be used elsewhere. Also trim trailing whitespaces llvm-svn: 112846
2010-09-03 02:40:13 +08:00
ShuffleMask.push_back(0);
ShuffleMask.push_back(1);
ShuffleMask.push_back(2);
ShuffleMask.push_back(3);
for (unsigned i = 0; i != 4; ++i) {
ShuffleMask.push_back(4+(Imm & 3));
Imm >>= 2;
}
}
[AVX] Recorganize X86ShuffleDecode into its own library (LLVMX86Utils.a) to break cyclic library dependencies between LLVMX86CodeGen.a and LLVMX86AsmParser.a. Previously this code was in a header file and marked static but AVX requires some additional functionality here that won't be used by all clients. Since including unused static functions causes a gcc compiler warning, keeping it as a header would break builds that use -Werror. Putting this in its own library solves both problems at once. llvm-svn: 125765
2011-02-18 03:18:59 +08:00
void DecodePSHUFLWMask(unsigned Imm,
SmallVectorImpl<unsigned> &ShuffleMask) {
Move x86 specific shuffle mask decoding to its own header, it's also going to be used elsewhere. Also trim trailing whitespaces llvm-svn: 112846
2010-09-03 02:40:13 +08:00
for (unsigned i = 0; i != 4; ++i) {
ShuffleMask.push_back((Imm & 3));
Imm >>= 2;
}
ShuffleMask.push_back(4);
ShuffleMask.push_back(5);
ShuffleMask.push_back(6);
ShuffleMask.push_back(7);
}
[AVX] Add decode support for VUNPCKLPS/D instructions, both 128-bit and 256-bit forms. Because the number of elements in a vector does not determine the vector type (4 elements could be v4f32 or v4f64), pass the full type of the vector to decode routines. llvm-svn: 126664
2011-03-01 03:06:56 +08:00
void DecodePUNPCKLBWMask(unsigned NElts,
SmallVectorImpl<unsigned> &ShuffleMask) {
DecodeUNPCKLPMask(MVT::getVectorVT(MVT::i8, NElts), ShuffleMask);
}
void DecodePUNPCKLWDMask(unsigned NElts,
SmallVectorImpl<unsigned> &ShuffleMask) {
DecodeUNPCKLPMask(MVT::getVectorVT(MVT::i16, NElts), ShuffleMask);
}
void DecodePUNPCKLDQMask(unsigned NElts,
SmallVectorImpl<unsigned> &ShuffleMask) {
DecodeUNPCKLPMask(MVT::getVectorVT(MVT::i32, NElts), ShuffleMask);
}
void DecodePUNPCKLQDQMask(unsigned NElts,
SmallVectorImpl<unsigned> &ShuffleMask) {
DecodeUNPCKLPMask(MVT::getVectorVT(MVT::i64, NElts), ShuffleMask);
}
void DecodePUNPCKLMask(EVT VT,
[AVX] Recorganize X86ShuffleDecode into its own library (LLVMX86Utils.a) to break cyclic library dependencies between LLVMX86CodeGen.a and LLVMX86AsmParser.a. Previously this code was in a header file and marked static but AVX requires some additional functionality here that won't be used by all clients. Since including unused static functions causes a gcc compiler warning, keeping it as a header would break builds that use -Werror. Putting this in its own library solves both problems at once. llvm-svn: 125765
2011-02-18 03:18:59 +08:00
SmallVectorImpl<unsigned> &ShuffleMask) {
[AVX] Add decode support for VUNPCKLPS/D instructions, both 128-bit and 256-bit forms. Because the number of elements in a vector does not determine the vector type (4 elements could be v4f32 or v4f64), pass the full type of the vector to decode routines. llvm-svn: 126664
2011-03-01 03:06:56 +08:00
DecodeUNPCKLPMask(VT, ShuffleMask);
Move x86 specific shuffle mask decoding to its own header, it's also going to be used elsewhere. Also trim trailing whitespaces llvm-svn: 112846
2010-09-03 02:40:13 +08:00
}
[AVX] Recorganize X86ShuffleDecode into its own library (LLVMX86Utils.a) to break cyclic library dependencies between LLVMX86CodeGen.a and LLVMX86AsmParser.a. Previously this code was in a header file and marked static but AVX requires some additional functionality here that won't be used by all clients. Since including unused static functions causes a gcc compiler warning, keeping it as a header would break builds that use -Werror. Putting this in its own library solves both problems at once. llvm-svn: 125765
2011-02-18 03:18:59 +08:00
void DecodePUNPCKHMask(unsigned NElts,
SmallVectorImpl<unsigned> &ShuffleMask) {
Move x86 specific shuffle mask decoding to its own header, it's also going to be used elsewhere. Also trim trailing whitespaces llvm-svn: 112846
2010-09-03 02:40:13 +08:00
for (unsigned i = 0; i != NElts/2; ++i) {
ShuffleMask.push_back(i+NElts/2);
ShuffleMask.push_back(i+NElts+NElts/2);
}
}
[AVX] Recorganize X86ShuffleDecode into its own library (LLVMX86Utils.a) to break cyclic library dependencies between LLVMX86CodeGen.a and LLVMX86AsmParser.a. Previously this code was in a header file and marked static but AVX requires some additional functionality here that won't be used by all clients. Since including unused static functions causes a gcc compiler warning, keeping it as a header would break builds that use -Werror. Putting this in its own library solves both problems at once. llvm-svn: 125765
2011-02-18 03:18:59 +08:00
void DecodeSHUFPSMask(unsigned NElts, unsigned Imm,
SmallVectorImpl<unsigned> &ShuffleMask) {
Move x86 specific shuffle mask decoding to its own header, it's also going to be used elsewhere. Also trim trailing whitespaces llvm-svn: 112846
2010-09-03 02:40:13 +08:00
// Part that reads from dest.
for (unsigned i = 0; i != NElts/2; ++i) {
ShuffleMask.push_back(Imm % NElts);
Imm /= NElts;
}
// Part that reads from src.
for (unsigned i = 0; i != NElts/2; ++i) {
ShuffleMask.push_back(Imm % NElts + NElts);
Imm /= NElts;
}
}
[AVX] Recorganize X86ShuffleDecode into its own library (LLVMX86Utils.a) to break cyclic library dependencies between LLVMX86CodeGen.a and LLVMX86AsmParser.a. Previously this code was in a header file and marked static but AVX requires some additional functionality here that won't be used by all clients. Since including unused static functions causes a gcc compiler warning, keeping it as a header would break builds that use -Werror. Putting this in its own library solves both problems at once. llvm-svn: 125765
2011-02-18 03:18:59 +08:00
void DecodeUNPCKHPMask(unsigned NElts,
SmallVectorImpl<unsigned> &ShuffleMask) {
Move x86 specific shuffle mask decoding to its own header, it's also going to be used elsewhere. Also trim trailing whitespaces llvm-svn: 112846
2010-09-03 02:40:13 +08:00
for (unsigned i = 0; i != NElts/2; ++i) {
ShuffleMask.push_back(i+NElts/2); // Reads from dest
ShuffleMask.push_back(i+NElts+NElts/2); // Reads from src
}
}
[AVX] Add decode support for VUNPCKLPS/D instructions, both 128-bit and 256-bit forms. Because the number of elements in a vector does not determine the vector type (4 elements could be v4f32 or v4f64), pass the full type of the vector to decode routines. llvm-svn: 126664
2011-03-01 03:06:56 +08:00
void DecodeUNPCKLPSMask(unsigned NElts,
SmallVectorImpl<unsigned> &ShuffleMask) {
DecodeUNPCKLPMask(MVT::getVectorVT(MVT::i32, NElts), ShuffleMask);
}
void DecodeUNPCKLPDMask(unsigned NElts,
SmallVectorImpl<unsigned> &ShuffleMask) {
DecodeUNPCKLPMask(MVT::getVectorVT(MVT::i64, NElts), ShuffleMask);
}
Move x86 specific shuffle mask decoding to its own header, it's also going to be used elsewhere. Also trim trailing whitespaces llvm-svn: 112846
2010-09-03 02:40:13 +08:00
/// DecodeUNPCKLPMask - This decodes the shuffle masks for unpcklps/unpcklpd
[AVX] Add decode support for VUNPCKLPS/D instructions, both 128-bit and 256-bit forms. Because the number of elements in a vector does not determine the vector type (4 elements could be v4f32 or v4f64), pass the full type of the vector to decode routines. llvm-svn: 126664
2011-03-01 03:06:56 +08:00
/// etc. VT indicates the type of the vector allowing it to handle different
/// datatypes and vector widths.
void DecodeUNPCKLPMask(EVT VT,
[AVX] Recorganize X86ShuffleDecode into its own library (LLVMX86Utils.a) to break cyclic library dependencies between LLVMX86CodeGen.a and LLVMX86AsmParser.a. Previously this code was in a header file and marked static but AVX requires some additional functionality here that won't be used by all clients. Since including unused static functions causes a gcc compiler warning, keeping it as a header would break builds that use -Werror. Putting this in its own library solves both problems at once. llvm-svn: 125765
2011-02-18 03:18:59 +08:00
SmallVectorImpl<unsigned> &ShuffleMask) {
[AVX] Add decode support for VUNPCKLPS/D instructions, both 128-bit and 256-bit forms. Because the number of elements in a vector does not determine the vector type (4 elements could be v4f32 or v4f64), pass the full type of the vector to decode routines. llvm-svn: 126664
2011-03-01 03:06:56 +08:00
fix a signed comparison warning. llvm-svn: 126682
2011-03-01 04:50:35 +08:00
unsigned NElts = VT.getVectorNumElements();
[AVX] Add decode support for VUNPCKLPS/D instructions, both 128-bit and 256-bit forms. Because the number of elements in a vector does not determine the vector type (4 elements could be v4f32 or v4f64), pass the full type of the vector to decode routines. llvm-svn: 126664
2011-03-01 03:06:56 +08:00
Move x86 specific shuffle mask decoding to its own header, it's also going to be used elsewhere. Also trim trailing whitespaces llvm-svn: 112846
2010-09-03 02:40:13 +08:00
for (unsigned i = 0; i != NElts/2; ++i) {
ShuffleMask.push_back(i); // Reads from dest
ShuffleMask.push_back(i+NElts); // Reads from src
}
}
[AVX] Recorganize X86ShuffleDecode into its own library (LLVMX86Utils.a) to break cyclic library dependencies between LLVMX86CodeGen.a and LLVMX86AsmParser.a. Previously this code was in a header file and marked static but AVX requires some additional functionality here that won't be used by all clients. Since including unused static functions causes a gcc compiler warning, keeping it as a header would break builds that use -Werror. Putting this in its own library solves both problems at once. llvm-svn: 125765
2011-02-18 03:18:59 +08:00
} // llvm namespace