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Factor out target shuffle mask decoding from getShuffleScalarElt and use a SmallVector of int instead of unsigned for shuffle mask in decode functions. Preparation for another change.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153079 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Craig Topper
2012-03-20 06:42:26 +00:00
parent 0c9da210f7
commit a1ffc681ed
4 changed files with 95 additions and 96 deletions
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26
lib/Target/X86/Utils/X86ShuffleDecode.cpp
View File

@@ -20,7 +20,7 @@
namespace llvm {
void DecodeINSERTPSMask(unsigned Imm, SmallVectorImpl<unsigned> &ShuffleMask) {
void DecodeINSERTPSMask(unsigned Imm, SmallVectorImpl<int> &ShuffleMask) {
// Defaults the copying the dest value.
ShuffleMask.push_back(0);
ShuffleMask.push_back(1);
@@ -44,8 +44,7 @@ void DecodeINSERTPSMask(unsigned Imm, SmallVectorImpl<unsigned> &ShuffleMask) {
}
// <3,1> or <6,7,2,3>
void DecodeMOVHLPSMask(unsigned NElts,
SmallVectorImpl<unsigned> &ShuffleMask) {
void DecodeMOVHLPSMask(unsigned NElts, SmallVectorImpl<int> &ShuffleMask) {
for (unsigned i = NElts/2; i != NElts; ++i)
ShuffleMask.push_back(NElts+i);
@@ -54,8 +53,7 @@ void DecodeMOVHLPSMask(unsigned NElts,
}
// <0,2> or <0,1,4,5>
void DecodeMOVLHPSMask(unsigned NElts,
SmallVectorImpl<unsigned> &ShuffleMask) {
void DecodeMOVLHPSMask(unsigned NElts, SmallVectorImpl<int> &ShuffleMask) {
for (unsigned i = 0; i != NElts/2; ++i)
ShuffleMask.push_back(i);
@@ -66,8 +64,7 @@ void DecodeMOVLHPSMask(unsigned NElts,
/// DecodePSHUFMask - This decodes the shuffle masks for pshufd, and vpermilp*.
/// VT indicates the type of the vector allowing it to handle different
/// datatypes and vector widths.
void DecodePSHUFMask(EVT VT, unsigned Imm,
SmallVectorImpl<unsigned> &ShuffleMask) {
void DecodePSHUFMask(EVT VT, unsigned Imm, SmallVectorImpl<int> &ShuffleMask) {
unsigned NumElts = VT.getVectorNumElements();
unsigned NumLanes = VT.getSizeInBits() / 128;
@@ -83,8 +80,7 @@ void DecodePSHUFMask(EVT VT, unsigned Imm,
}
}
void DecodePSHUFHWMask(unsigned Imm,
SmallVectorImpl<unsigned> &ShuffleMask) {
void DecodePSHUFHWMask(unsigned Imm, SmallVectorImpl<int> &ShuffleMask) {
ShuffleMask.push_back(0);
ShuffleMask.push_back(1);
ShuffleMask.push_back(2);
@@ -95,8 +91,7 @@ void DecodePSHUFHWMask(unsigned Imm,
}
}
void DecodePSHUFLWMask(unsigned Imm,
SmallVectorImpl<unsigned> &ShuffleMask) {
void DecodePSHUFLWMask(unsigned Imm, SmallVectorImpl<int> &ShuffleMask) {
for (unsigned i = 0; i != 4; ++i) {
ShuffleMask.push_back((Imm & 3));
Imm >>= 2;
@@ -110,8 +105,7 @@ void DecodePSHUFLWMask(unsigned Imm,
/// DecodeSHUFPMask - This decodes the shuffle masks for shufp*. VT indicates
/// the type of the vector allowing it to handle different datatypes and vector
/// widths.
void DecodeSHUFPMask(EVT VT, unsigned Imm,
SmallVectorImpl<unsigned> &ShuffleMask) {
void DecodeSHUFPMask(EVT VT, unsigned Imm, SmallVectorImpl<int> &ShuffleMask) {
unsigned NumElts = VT.getVectorNumElements();
unsigned NumLanes = VT.getSizeInBits() / 128;
@@ -136,7 +130,7 @@ void DecodeSHUFPMask(EVT VT, unsigned Imm,
/// DecodeUNPCKHMask - This decodes the shuffle masks for unpckhps/unpckhpd
/// and punpckh*. VT indicates the type of the vector allowing it to handle
/// different datatypes and vector widths.
void DecodeUNPCKHMask(EVT VT, SmallVectorImpl<unsigned> &ShuffleMask) {
void DecodeUNPCKHMask(EVT VT, SmallVectorImpl<int> &ShuffleMask) {
unsigned NumElts = VT.getVectorNumElements();
// Handle 128 and 256-bit vector lengths. AVX defines UNPCK* to operate
@@ -156,7 +150,7 @@ void DecodeUNPCKHMask(EVT VT, SmallVectorImpl<unsigned> &ShuffleMask) {
/// DecodeUNPCKLMask - This decodes the shuffle masks for unpcklps/unpcklpd
/// and punpckl*. VT indicates the type of the vector allowing it to handle
/// different datatypes and vector widths.
void DecodeUNPCKLMask(EVT VT, SmallVectorImpl<unsigned> &ShuffleMask) {
void DecodeUNPCKLMask(EVT VT, SmallVectorImpl<int> &ShuffleMask) {
unsigned NumElts = VT.getVectorNumElements();
// Handle 128 and 256-bit vector lengths. AVX defines UNPCK* to operate
@@ -174,7 +168,7 @@ void DecodeUNPCKLMask(EVT VT, SmallVectorImpl<unsigned> &ShuffleMask) {
}
void DecodeVPERM2X128Mask(EVT VT, unsigned Imm,
SmallVectorImpl<unsigned> &ShuffleMask) {
SmallVectorImpl<int> &ShuffleMask) {
unsigned HalfSize = VT.getVectorNumElements()/2;
unsigned FstHalfBegin = (Imm & 0x3) * HalfSize;
unsigned SndHalfBegin = ((Imm >> 4) & 0x3) * HalfSize;

26
lib/Target/X86/Utils/X86ShuffleDecode.h
View File

@@ -27,44 +27,38 @@ enum {
SM_SentinelZero = ~0U
};
void DecodeINSERTPSMask(unsigned Imm, SmallVectorImpl<unsigned> &ShuffleMask);
void DecodeINSERTPSMask(unsigned Imm, SmallVectorImpl<int> &ShuffleMask);
// <3,1> or <6,7,2,3>
void DecodeMOVHLPSMask(unsigned NElts,
SmallVectorImpl<unsigned> &ShuffleMask);
void DecodeMOVHLPSMask(unsigned NElts, SmallVectorImpl<int> &ShuffleMask);
// <0,2> or <0,1,4,5>
void DecodeMOVLHPSMask(unsigned NElts,
SmallVectorImpl<unsigned> &ShuffleMask);
void DecodeMOVLHPSMask(unsigned NElts, SmallVectorImpl<int> &ShuffleMask);
void DecodePSHUFMask(EVT VT, unsigned Imm,
SmallVectorImpl<unsigned> &ShuffleMask);
void DecodePSHUFMask(EVT VT, unsigned Imm, SmallVectorImpl<int> &ShuffleMask);
void DecodePSHUFHWMask(unsigned Imm,
SmallVectorImpl<unsigned> &ShuffleMask);
void DecodePSHUFHWMask(unsigned Imm, SmallVectorImpl<int> &ShuffleMask);
void DecodePSHUFLWMask(unsigned Imm,
SmallVectorImpl<unsigned> &ShuffleMask);
void DecodePSHUFLWMask(unsigned Imm, SmallVectorImpl<int> &ShuffleMask);
/// DecodeSHUFPMask - This decodes the shuffle masks for shufp*. VT indicates
/// the type of the vector allowing it to handle different datatypes and vector
/// widths.
void DecodeSHUFPMask(EVT VT, unsigned Imm,
SmallVectorImpl<unsigned> &ShuffleMask);
void DecodeSHUFPMask(EVT VT, unsigned Imm, SmallVectorImpl<int> &ShuffleMask);
/// DecodeUNPCKHMask - This decodes the shuffle masks for unpckhps/unpckhpd
/// and punpckh*. VT indicates the type of the vector allowing it to handle
/// different datatypes and vector widths.
void DecodeUNPCKHMask(EVT VT, SmallVectorImpl<unsigned> &ShuffleMask);
void DecodeUNPCKHMask(EVT VT, SmallVectorImpl<int> &ShuffleMask);
/// DecodeUNPCKLMask - This decodes the shuffle masks for unpcklps/unpcklpd
/// and punpckl*. VT indicates the type of the vector allowing it to handle
/// different datatypes and vector widths.
void DecodeUNPCKLMask(EVT VT, SmallVectorImpl<unsigned> &ShuffleMask);
void DecodeUNPCKLMask(EVT VT, SmallVectorImpl<int> &ShuffleMask);
void DecodeVPERM2X128Mask(EVT VT, unsigned Imm,
SmallVectorImpl<unsigned> &ShuffleMask);
SmallVectorImpl<int> &ShuffleMask);
} // llvm namespace