[llvm-commits] [llvm] r117475 - in /llvm/trunk: lib/Target/ARM/ARMInstrFormats.td lib/Target/ARM/ARMInstrNEON.td test/MC/ARM/neon-dup-encoding.ll

Owen Anderson resistor at mac.com
Wed Oct 27 12:25:54 PDT 2010


Author: resistor
Date: Wed Oct 27 14:25:54 2010
New Revision: 117475

URL: http://llvm.org/viewvc/llvm-project?rev=117475&view=rev
Log:
Provide correct NEON encodings for vdup.

Added:
    llvm/trunk/test/MC/ARM/neon-dup-encoding.ll
Modified:
    llvm/trunk/lib/Target/ARM/ARMInstrFormats.td
    llvm/trunk/lib/Target/ARM/ARMInstrNEON.td

Modified: llvm/trunk/lib/Target/ARM/ARMInstrFormats.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARMInstrFormats.td?rev=117475&r1=117474&r2=117475&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/ARMInstrFormats.td (original)
+++ llvm/trunk/lib/Target/ARM/ARMInstrFormats.td Wed Oct 27 14:25:54 2010
@@ -1867,6 +1867,15 @@
   let AsmString = !strconcat(opc, "${p}", ".", dt, "\t", asm);
   let Pattern = pattern;
   list<Predicate> Predicates = [HasNEON];
+  
+  bits<5> Vd;
+  bits<4> Rt;
+  bits<4> p;
+  
+  let Inst{31-28} = p{3-0};
+  let Inst{7}     = Vd{4};
+  let Inst{19-16} = Vd{3-0};
+  let Inst{15-12} = Rt{3-0};
 }
 class NVGetLane<bits<8> opcod1, bits<4> opcod2, bits<2> opcod3,
                 dag oops, dag iops, InstrItinClass itin,
@@ -1895,6 +1904,15 @@
   let Inst{11-7}  = 0b11000;
   let Inst{6}     = op6;
   let Inst{4}     = 0;
+  
+  bits<5> Vd;
+  bits<5> Vm;
+  bits<4> lane;
+  
+  let Inst{22}     = Vd{4};
+  let Inst{15-12} = Vd{3-0};
+  let Inst{5}     = Vm{4};
+  let Inst{3-0} = Vm{3-0};
 }
 
 // NEONFPPat - Same as Pat<>, but requires that the compiler be using NEON

Modified: llvm/trunk/lib/Target/ARM/ARMInstrNEON.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARMInstrNEON.td?rev=117475&r1=117474&r2=117475&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/ARMInstrNEON.td (original)
+++ llvm/trunk/lib/Target/ARM/ARMInstrNEON.td Wed Oct 27 14:25:54 2010
@@ -3679,14 +3679,30 @@
 
 // Inst{19-16} is partially specified depending on the element size.
 
-def VDUPLN8d  : VDUPLND<{?,?,?,1}, "vdup", "8", v8i8>;
-def VDUPLN16d : VDUPLND<{?,?,1,0}, "vdup", "16", v4i16>;
-def VDUPLN32d : VDUPLND<{?,1,0,0}, "vdup", "32", v2i32>;
-def VDUPLNfd  : VDUPLND<{?,1,0,0}, "vdup", "32", v2f32>;
-def VDUPLN8q  : VDUPLNQ<{?,?,?,1}, "vdup", "8", v16i8, v8i8>;
-def VDUPLN16q : VDUPLNQ<{?,?,1,0}, "vdup", "16", v8i16, v4i16>;
-def VDUPLN32q : VDUPLNQ<{?,1,0,0}, "vdup", "32", v4i32, v2i32>;
-def VDUPLNfq  : VDUPLNQ<{?,1,0,0}, "vdup", "32", v4f32, v2f32>;
+def VDUPLN8d  : VDUPLND<{?,?,?,1}, "vdup", "8", v8i8> {
+  let Inst{19-17} = lane{2-0};
+}
+def VDUPLN16d : VDUPLND<{?,?,1,0}, "vdup", "16", v4i16> {
+  let Inst{19-18} = lane{1-0};
+}
+def VDUPLN32d : VDUPLND<{?,1,0,0}, "vdup", "32", v2i32> {
+  let Inst{19} = lane{0};
+}
+def VDUPLNfd  : VDUPLND<{?,1,0,0}, "vdup", "32", v2f32> {
+  let Inst{19} = lane{0};
+}
+def VDUPLN8q  : VDUPLNQ<{?,?,?,1}, "vdup", "8", v16i8, v8i8> {
+  let Inst{19-17} = lane{2-0};
+}
+def VDUPLN16q : VDUPLNQ<{?,?,1,0}, "vdup", "16", v8i16, v4i16> {
+  let Inst{19-18} = lane{1-0};
+}
+def VDUPLN32q : VDUPLNQ<{?,1,0,0}, "vdup", "32", v4i32, v2i32> {
+  let Inst{19} = lane{0};
+}
+def VDUPLNfq  : VDUPLNQ<{?,1,0,0}, "vdup", "32", v4f32, v2f32> {
+  let Inst{19} = lane{0};
+}
 
 def : Pat<(v16i8 (NEONvduplane (v16i8 QPR:$src), imm:$lane)),
           (v16i8 (VDUPLN8q (v8i8 (EXTRACT_SUBREG QPR:$src,

Added: llvm/trunk/test/MC/ARM/neon-dup-encoding.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/ARM/neon-dup-encoding.ll?rev=117475&view=auto
==============================================================================
--- llvm/trunk/test/MC/ARM/neon-dup-encoding.ll (added)
+++ llvm/trunk/test/MC/ARM/neon-dup-encoding.ll Wed Oct 27 14:25:54 2010
@@ -0,0 +1,115 @@
+; RUN: llc -show-mc-encoding -march=arm -mcpu=cortex-a8 -mattr=+neon < %s | FileCheck %s
+
+define <8 x i8> @v_dup8(i8 %A) nounwind {
+; CHECK: vdup.8	d16, r0                 @ encoding: [0x90,0x0b,0xc0,0xee]
+	%tmp1 = insertelement <8 x i8> zeroinitializer, i8 %A, i32 0
+	%tmp2 = insertelement <8 x i8> %tmp1, i8 %A, i32 1
+	%tmp3 = insertelement <8 x i8> %tmp2, i8 %A, i32 2
+	%tmp4 = insertelement <8 x i8> %tmp3, i8 %A, i32 3
+	%tmp5 = insertelement <8 x i8> %tmp4, i8 %A, i32 4
+	%tmp6 = insertelement <8 x i8> %tmp5, i8 %A, i32 5
+	%tmp7 = insertelement <8 x i8> %tmp6, i8 %A, i32 6
+	%tmp8 = insertelement <8 x i8> %tmp7, i8 %A, i32 7
+	ret <8 x i8> %tmp8
+}
+
+define <4 x i16> @v_dup16(i16 %A) nounwind {
+; CHECK: vdup.16	d16, r0                 @ encoding: [0xb0,0x0b,0x80,0xee]
+	%tmp1 = insertelement <4 x i16> zeroinitializer, i16 %A, i32 0
+	%tmp2 = insertelement <4 x i16> %tmp1, i16 %A, i32 1
+	%tmp3 = insertelement <4 x i16> %tmp2, i16 %A, i32 2
+	%tmp4 = insertelement <4 x i16> %tmp3, i16 %A, i32 3
+	ret <4 x i16> %tmp4
+}
+
+define <2 x i32> @v_dup32(i32 %A) nounwind {
+; CHECK: vdup.32	d16, r0                 @ encoding: [0x90,0x0b,0x80,0xee]
+	%tmp1 = insertelement <2 x i32> zeroinitializer, i32 %A, i32 0
+	%tmp2 = insertelement <2 x i32> %tmp1, i32 %A, i32 1
+	ret <2 x i32> %tmp2
+}
+
+define <16 x i8> @v_dupQ8(i8 %A) nounwind {
+; CHECK: vdup.8	q8, r0                  @ encoding: [0x90,0x0b,0xe0,0xee]
+	%tmp1 = insertelement <16 x i8> zeroinitializer, i8 %A, i32 0
+	%tmp2 = insertelement <16 x i8> %tmp1, i8 %A, i32 1
+	%tmp3 = insertelement <16 x i8> %tmp2, i8 %A, i32 2
+	%tmp4 = insertelement <16 x i8> %tmp3, i8 %A, i32 3
+	%tmp5 = insertelement <16 x i8> %tmp4, i8 %A, i32 4
+	%tmp6 = insertelement <16 x i8> %tmp5, i8 %A, i32 5
+	%tmp7 = insertelement <16 x i8> %tmp6, i8 %A, i32 6
+	%tmp8 = insertelement <16 x i8> %tmp7, i8 %A, i32 7
+	%tmp9 = insertelement <16 x i8> %tmp8, i8 %A, i32 8
+	%tmp10 = insertelement <16 x i8> %tmp9, i8 %A, i32 9
+	%tmp11 = insertelement <16 x i8> %tmp10, i8 %A, i32 10
+	%tmp12 = insertelement <16 x i8> %tmp11, i8 %A, i32 11
+	%tmp13 = insertelement <16 x i8> %tmp12, i8 %A, i32 12
+	%tmp14 = insertelement <16 x i8> %tmp13, i8 %A, i32 13
+	%tmp15 = insertelement <16 x i8> %tmp14, i8 %A, i32 14
+	%tmp16 = insertelement <16 x i8> %tmp15, i8 %A, i32 15
+	ret <16 x i8> %tmp16
+}
+
+define <8 x i16> @v_dupQ16(i16 %A) nounwind {
+; CHECK: vdup.16	q8, r0                  @ encoding: [0xb0,0x0b,0xa0,0xee]
+	%tmp1 = insertelement <8 x i16> zeroinitializer, i16 %A, i32 0
+	%tmp2 = insertelement <8 x i16> %tmp1, i16 %A, i32 1
+	%tmp3 = insertelement <8 x i16> %tmp2, i16 %A, i32 2
+	%tmp4 = insertelement <8 x i16> %tmp3, i16 %A, i32 3
+	%tmp5 = insertelement <8 x i16> %tmp4, i16 %A, i32 4
+	%tmp6 = insertelement <8 x i16> %tmp5, i16 %A, i32 5
+	%tmp7 = insertelement <8 x i16> %tmp6, i16 %A, i32 6
+	%tmp8 = insertelement <8 x i16> %tmp7, i16 %A, i32 7
+	ret <8 x i16> %tmp8
+}
+
+define <4 x i32> @v_dupQ32(i32 %A) nounwind {
+; CHECK: vdup.32	q8, r0                  @ encoding: [0x90,0x0b,0xa0,0xee]
+	%tmp1 = insertelement <4 x i32> zeroinitializer, i32 %A, i32 0
+	%tmp2 = insertelement <4 x i32> %tmp1, i32 %A, i32 1
+	%tmp3 = insertelement <4 x i32> %tmp2, i32 %A, i32 2
+	%tmp4 = insertelement <4 x i32> %tmp3, i32 %A, i32 3
+	ret <4 x i32> %tmp4
+}
+
+define <8 x i8> @vduplane8(<8 x i8>* %A) nounwind {
+	%tmp1 = load <8 x i8>* %A
+; CHECK: vdup.8	d16, d16[1]             @ encoding: [0x20,0x0c,0xf3,0xf3]
+	%tmp2 = shufflevector <8 x i8> %tmp1, <8 x i8> undef, <8 x i32> < i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1 >
+	ret <8 x i8> %tmp2
+}
+
+define <4 x i16> @vduplane16(<4 x i16>* %A) nounwind {
+	%tmp1 = load <4 x i16>* %A
+; CHECK: vdup.16	d16, d16[1]             @ encoding: [0x20,0x0c,0xf6,0xf3]
+	%tmp2 = shufflevector <4 x i16> %tmp1, <4 x i16> undef, <4 x i32> < i32 1, i32 1, i32 1, i32 1 >
+	ret <4 x i16> %tmp2
+}
+
+define <2 x i32> @vduplane32(<2 x i32>* %A) nounwind {
+	%tmp1 = load <2 x i32>* %A
+; CHECK: vdup.32	d16, d16[1]             @ encoding: [0x20,0x0c,0xfc,0xf3]
+	%tmp2 = shufflevector <2 x i32> %tmp1, <2 x i32> undef, <2 x i32> < i32 1, i32 1 >
+	ret <2 x i32> %tmp2
+}
+
+define <16 x i8> @vduplaneQ8(<8 x i8>* %A) nounwind {
+	%tmp1 = load <8 x i8>* %A
+; CHECK: vdup.8	q8, d16[1]              @ encoding: [0x60,0x0c,0xf3,0xf3]
+	%tmp2 = shufflevector <8 x i8> %tmp1, <8 x i8> undef, <16 x i32> < i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1 >
+	ret <16 x i8> %tmp2
+}
+
+define <8 x i16> @vduplaneQ16(<4 x i16>* %A) nounwind {
+	%tmp1 = load <4 x i16>* %A
+; CHECK: vdup.16	q8, d16[1]              @ encoding: [0x60,0x0c,0xf6,0xf3]
+	%tmp2 = shufflevector <4 x i16> %tmp1, <4 x i16> undef, <8 x i32> < i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1 >
+	ret <8 x i16> %tmp2
+}
+
+define <4 x i32> @vduplaneQ32(<2 x i32>* %A) nounwind {
+	%tmp1 = load <2 x i32>* %A
+; CHECK: vdup.32	q8, d16[1]              @ encoding: [0x60,0x0c,0xfc,0xf3]
+	%tmp2 = shufflevector <2 x i32> %tmp1, <2 x i32> undef, <4 x i32> < i32 1, i32 1, i32 1, i32 1 >
+	ret <4 x i32> %tmp2
+}





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