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AVX-512: Fixed extract_vector_elt for v8i1 vector

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llvm-svn: 202624
This commit is contained in:
Elena Demikhovsky 2014-03-02 09:19:44 +00:00
parent bb650c75f6
commit 838b163a58
5 changed files with 32 additions and 12 deletions
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6
lib/Target/X86/X86ISelLowering.cpp
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@ -7697,7 +7697,8 @@ static SDValue LowerEXTRACT_VECTOR_ELT_SSE4(SDValue Op, SelectionDAG &DAG) {
/// Extract one bit from mask vector, like v16i1 or v8i1.
/// AVX-512 feature.
static SDValue ExtractBitFromMaskVector(SDValue Op, SelectionDAG &DAG) {
SDValue
X86TargetLowering::ExtractBitFromMaskVector(SDValue Op, SelectionDAG &DAG) const {
SDValue Vec = Op.getOperand(0);
SDLoc dl(Vec);
MVT VecVT = Vec.getSimpleValueType();
@ -7717,7 +7718,8 @@ static SDValue ExtractBitFromMaskVector(SDValue Op, SelectionDAG &DAG) {
}
unsigned IdxVal = cast<ConstantSDNode>(Idx)->getZExtValue();
unsigned MaxSift = VecVT.getSizeInBits() - 1;
const TargetRegisterClass* rc = getRegClassFor(VecVT);
unsigned MaxSift = rc->getSize()*8 - 1;
Vec = DAG.getNode(X86ISD::VSHLI, dl, VecVT, Vec,
DAG.getConstant(MaxSift - IdxVal, MVT::i8));
Vec = DAG.getNode(X86ISD::VSRLI, dl, VecVT, Vec,

1
lib/Target/X86/X86ISelLowering.h
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@ -867,6 +867,7 @@ namespace llvm {
SDValue LowerBUILD_VECTORvXi1(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerVECTOR_SHUFFLE(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerEXTRACT_VECTOR_ELT(SDValue Op, SelectionDAG &DAG) const;
SDValue ExtractBitFromMaskVector(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerINSERT_VECTOR_ELT(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerConstantPool(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerBlockAddress(SDValue Op, SelectionDAG &DAG) const;

5
lib/Target/X86/X86InstrAVX512.td
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@ -1213,6 +1213,11 @@ def : Pat<(v16i1 (insert_subvector undef, (v8i1 VK8:$src), (iPTR 0))),
def : Pat<(v8i1 (extract_subvector (v16i1 VK16:$src), (iPTR 8))),
(v8i1 (COPY_TO_REGCLASS (KSHIFTRWri VK16:$src, (i8 8)), VK8))>;
def : Pat<(v8i1 (X86vshli VK8:$src, (i8 imm:$imm))),
(v8i1 (COPY_TO_REGCLASS (KSHIFTLWri (COPY_TO_REGCLASS VK8:$src, VK16), (I8Imm $imm)), VK8))>;
def : Pat<(v8i1 (X86vsrli VK8:$src, (i8 imm:$imm))),
(v8i1 (COPY_TO_REGCLASS (KSHIFTRWri (COPY_TO_REGCLASS VK8:$src, VK16), (I8Imm $imm)), VK8))>;
//===----------------------------------------------------------------------===//
// AVX-512 - Aligned and unaligned load and store
//

8
lib/Target/X86/X86RegisterInfo.td
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@ -466,10 +466,10 @@ def VR256X : RegisterClass<"X86", [v32i8, v16i16, v8i32, v4i64, v8f32, v4f64],
// The size of the all masked registers is 16 bit because we have only one
// KMOVW istruction that can store this register in memory, and it writes 2 bytes
def VK1 : RegisterClass<"X86", [i1], 16, (sequence "K%u", 0, 7)>;
def VK8 : RegisterClass<"X86", [v8i1], 16, (sequence "K%u", 0, 7)>;
def VK16 : RegisterClass<"X86", [v16i1], 16, (add VK8)>;
def VK8 : RegisterClass<"X86", [v8i1], 16, (add VK1)> {let Size = 16;}
def VK16 : RegisterClass<"X86", [v16i1], 16, (add VK8)> {let Size = 16;}
def VK1WM : RegisterClass<"X86", [i1], 16, (sub VK1, K0)>;
def VK8WM : RegisterClass<"X86", [v8i1], 16, (sub VK8, K0)>;
def VK1WM : RegisterClass<"X86", [i1], 16, (sub VK1, K0)> {let Size = 16;}
def VK8WM : RegisterClass<"X86", [v8i1], 16, (sub VK8, K0)> {let Size = 16;}
def VK16WM : RegisterClass<"X86", [v16i1], 16, (add VK8WM)>;

24
test/CodeGen/X86/avx512-insert-extract.ll
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@ -91,7 +91,7 @@ define float @test9(<8 x float> %x, i32 %ind) nounwind {
;CHECK-LABEL: test10
;CHECK: vmovd
;CHECK: vpermd %zmm
;CHEKK: vmovdz %xmm0, %eax
;CHECK: vmovd %xmm0, %eax
;CHECK: ret
define i32 @test10(<16 x i32> %x, i32 %ind) nounwind {
%e = extractelement <16 x i32> %x, i32 %ind
@ -100,8 +100,8 @@ define i32 @test10(<16 x i32> %x, i32 %ind) nounwind {
;CHECK-LABEL: test11
;CHECK: vpcmpltud
;CKECK: kshiftlw $11
;CKECK: kshiftrw $15
;CHECK: kshiftlw $11
;CHECK: kshiftrw $15
;CHECK: kortestw
;CHECK: je
;CHECK: ret
@ -119,8 +119,8 @@ define <16 x i32> @test11(<16 x i32>%a, <16 x i32>%b) {
;CHECK-LABEL: test12
;CHECK: vpcmpgtq
;CKECK: kshiftlw $15
;CKECK: kshiftrw $15
;CHECK: kshiftlw $15
;CHECK: kshiftrw $15
;CHECK: kortestw
;CHECK: ret
@ -135,7 +135,7 @@ define i64 @test12(<16 x i64>%a, <16 x i64>%b, i64 %a1, i64 %b1) {
;CHECK-LABEL: test13
;CHECK: cmpl
;CHECK: sbbl
;CKECK: orl $65532
;CHECK: orl $65532
;CHECK: ret
define i16 @test13(i32 %a, i32 %b) {
%cmp_res = icmp ult i32 %a, %b
@ -144,5 +144,17 @@ define i16 @test13(i32 %a, i32 %b) {
ret i16 %res
}
;CHECK-LABEL: test14
;CHECK: vpcmpgtq
;CHECK: kshiftlw $11
;CHECK: kshiftrw $15
;CHECK: kortestw
;CHECK: ret
define i64 @test14(<8 x i64>%a, <8 x i64>%b, i64 %a1, i64 %b1) {
%cmpvector_func.i = icmp slt <8 x i64> %a, %b
%extract24vector_func.i = extractelement <8 x i1> %cmpvector_func.i, i32 4
%res = select i1 %extract24vector_func.i, i64 %a1, i64 %b1
ret i64 %res
}