[llvm-commits] [llvm] r173572 - X86: Decode PALIGN operands so I don't have to do it in my head.
Benjamin Kramer
benny.kra at googlemail.com
Sat Jan 26 05:31:38 PST 2013
Author: d0k
Date: Sat Jan 26 07:31:37 2013
New Revision: 173572
URL: http://llvm.org/viewvc/llvm-project?rev=173572&view=rev
Log:
X86: Decode PALIGN operands so I don't have to do it in my head.
Added:
llvm/trunk/test/MC/X86/shuffle-comments.s
Modified:
llvm/trunk/lib/Target/X86/InstPrinter/X86InstComments.cpp
llvm/trunk/lib/Target/X86/Utils/X86ShuffleDecode.cpp
llvm/trunk/lib/Target/X86/Utils/X86ShuffleDecode.h
llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
Modified: llvm/trunk/lib/Target/X86/InstPrinter/X86InstComments.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/InstPrinter/X86InstComments.cpp?rev=173572&r1=173571&r2=173572&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/InstPrinter/X86InstComments.cpp (original)
+++ llvm/trunk/lib/Target/X86/InstPrinter/X86InstComments.cpp Sat Jan 26 07:31:37 2013
@@ -69,6 +69,28 @@ void llvm::EmitAnyX86InstComments(const
DecodeMOVHLPSMask(2, ShuffleMask);
break;
+ case X86::PALIGNR128rr:
+ case X86::VPALIGNR128rr:
+ Src1Name = getRegName(MI->getOperand(2).getReg());
+ // FALL THROUGH.
+ case X86::PALIGNR128rm:
+ case X86::VPALIGNR128rm:
+ Src2Name = getRegName(MI->getOperand(1).getReg());
+ DestName = getRegName(MI->getOperand(0).getReg());
+ DecodePALIGNMask(MVT::v16i8,
+ MI->getOperand(MI->getNumOperands()-1).getImm(),
+ ShuffleMask);
+ break;
+ case X86::VPALIGNR256rr:
+ Src1Name = getRegName(MI->getOperand(2).getReg());
+ // FALL THROUGH.
+ case X86::VPALIGNR256rm:
+ Src2Name = getRegName(MI->getOperand(1).getReg());
+ DestName = getRegName(MI->getOperand(0).getReg());
+ DecodePALIGNMask(MVT::v32i8,
+ MI->getOperand(MI->getNumOperands()-1).getImm(),
+ ShuffleMask);
+
case X86::PSHUFDri:
case X86::VPSHUFDri:
Src1Name = getRegName(MI->getOperand(1).getReg());
Modified: llvm/trunk/lib/Target/X86/Utils/X86ShuffleDecode.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/Utils/X86ShuffleDecode.cpp?rev=173572&r1=173571&r2=173572&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/Utils/X86ShuffleDecode.cpp (original)
+++ llvm/trunk/lib/Target/X86/Utils/X86ShuffleDecode.cpp Sat Jan 26 07:31:37 2013
@@ -61,6 +61,14 @@ void DecodeMOVLHPSMask(unsigned NElts, S
ShuffleMask.push_back(NElts+i);
}
+void DecodePALIGNMask(MVT VT, unsigned Imm, SmallVectorImpl<int> &ShuffleMask) {
+ unsigned NumElts = VT.getVectorNumElements();
+ unsigned Offset = Imm * (VT.getVectorElementType().getSizeInBits() / 8);
+
+ for (unsigned i = 0; i != NumElts; ++i)
+ ShuffleMask.push_back((i + Offset) % (NumElts * 2));
+}
+
/// 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.
Modified: llvm/trunk/lib/Target/X86/Utils/X86ShuffleDecode.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/Utils/X86ShuffleDecode.h?rev=173572&r1=173571&r2=173572&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/Utils/X86ShuffleDecode.h (original)
+++ llvm/trunk/lib/Target/X86/Utils/X86ShuffleDecode.h Sat Jan 26 07:31:37 2013
@@ -35,6 +35,8 @@ void DecodeMOVHLPSMask(unsigned NElts, S
// <0,2> or <0,1,4,5>
void DecodeMOVLHPSMask(unsigned NElts, SmallVectorImpl<int> &ShuffleMask);
+void DecodePALIGNMask(MVT VT, unsigned Imm, SmallVectorImpl<int> &ShuffleMask);
+
void DecodePSHUFMask(MVT VT, unsigned Imm, SmallVectorImpl<int> &ShuffleMask);
void DecodePSHUFHWMask(MVT VT, unsigned Imm, SmallVectorImpl<int> &ShuffleMask);
Modified: llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86ISelLowering.cpp?rev=173572&r1=173571&r2=173572&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86ISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86ISelLowering.cpp Sat Jan 26 07:31:37 2013
@@ -4592,6 +4592,10 @@ static bool getTargetShuffleMask(SDNode
case X86ISD::MOVLHPS:
DecodeMOVLHPSMask(NumElems, Mask);
break;
+ case X86ISD::PALIGN:
+ ImmN = N->getOperand(N->getNumOperands()-1);
+ DecodePALIGNMask(VT, cast<ConstantSDNode>(ImmN)->getZExtValue(), Mask);
+ break;
case X86ISD::PSHUFD:
case X86ISD::VPERMILP:
ImmN = N->getOperand(N->getNumOperands()-1);
@@ -4635,7 +4639,6 @@ static bool getTargetShuffleMask(SDNode
case X86ISD::MOVLPS:
case X86ISD::MOVSHDUP:
case X86ISD::MOVSLDUP:
- case X86ISD::PALIGN:
// Not yet implemented
return false;
default: llvm_unreachable("unknown target shuffle node");
Added: llvm/trunk/test/MC/X86/shuffle-comments.s
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/X86/shuffle-comments.s?rev=173572&view=auto
==============================================================================
--- llvm/trunk/test/MC/X86/shuffle-comments.s (added)
+++ llvm/trunk/test/MC/X86/shuffle-comments.s Sat Jan 26 07:31:37 2013
@@ -0,0 +1,31 @@
+# RUN: llvm-mc %s -triple=x86_64-unknown-unknown | FileCheck %s
+
+palignr $8, %xmm0, %xmm1
+# CHECK: xmm1 = xmm0[8,9,10,11,12,13,14,15],xmm1[0,1,2,3,4,5,6,7]
+palignr $8, (%rax), %xmm1
+# CHECK: xmm1 = mem[8,9,10,11,12,13,14,15],xmm1[0,1,2,3,4,5,6,7]
+
+palignr $16, %xmm0, %xmm1
+# CHECK: xmm1 = xmm1[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15]
+palignr $16, (%rax), %xmm1
+# CHECK: xmm1 = xmm1[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15]
+
+palignr $0, %xmm0, %xmm1
+# CHECK: xmm1 = xmm0[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15]
+palignr $0, (%rax), %xmm1
+# CHECK: xmm1 = mem[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15]
+
+vpalignr $8, %xmm0, %xmm1, %xmm2
+# CHECK: xmm2 = xmm0[8,9,10,11,12,13,14,15],xmm1[0,1,2,3,4,5,6,7]
+vpalignr $8, (%rax), %xmm1, %xmm2
+# CHECK: xmm2 = mem[8,9,10,11,12,13,14,15],xmm1[0,1,2,3,4,5,6,7]
+
+vpalignr $16, %xmm0, %xmm1, %xmm2
+# CHECK: xmm2 = xmm1[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15]
+vpalignr $16, (%rax), %xmm1, %xmm2
+# CHECK: xmm2 = xmm1[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15]
+
+vpalignr $0, %xmm0, %xmm1, %xmm2
+# CHECK: xmm2 = xmm0[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15]
+vpalignr $0, (%rax), %xmm1, %xmm2
+# CHECK: xmm2 = mem[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15]
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