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ARM NEON fix alignment encoding for VST2 w/ writeback.

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Add tests for w/ writeback instruction parsing and encoding.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146594 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Grosbach 2011-12-14 21:49:24 +00:00
parent c55accaddb
commit ec04a3f8db
2 changed files with 16 additions and 4 deletions
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8
lib/Target/ARM/ARMInstrNEON.td
View File

@ -1530,7 +1530,7 @@ multiclass VST2DWB<bits<4> op11_8, bits<4> op7_4, string Dt,
"vst2", Dt, "$Vd, $Rn!",
"$Rn.addr = $wb", []> {
let Rm = 0b1101; // NLdSt will assign to the right encoding bits.
let Inst{4} = Rn{4};
let Inst{5-4} = Rn{5-4};
let DecoderMethod = "DecodeVSTInstruction";
let AsmMatchConverter = "cvtVSTwbFixed";
}
@ -1538,7 +1538,7 @@ multiclass VST2DWB<bits<4> op11_8, bits<4> op7_4, string Dt,
(ins addrmode6:$Rn, rGPR:$Rm, VdTy:$Vd), IIC_VLD1u,
"vst2", Dt, "$Vd, $Rn, $Rm",
"$Rn.addr = $wb", []> {
let Inst{4} = Rn{4};
let Inst{5-4} = Rn{5-4};
let DecoderMethod = "DecodeVSTInstruction";
let AsmMatchConverter = "cvtVSTwbRegister";
}
@ -1549,7 +1549,7 @@ multiclass VST2QWB<bits<4> op7_4, string Dt> {
"vst2", Dt, "$Vd, $Rn!",
"$Rn.addr = $wb", []> {
let Rm = 0b1101; // NLdSt will assign to the right encoding bits.
let Inst{4} = Rn{4};
let Inst{5-4} = Rn{5-4};
let DecoderMethod = "DecodeVSTInstruction";
let AsmMatchConverter = "cvtVSTwbFixed";
}
@ -1558,7 +1558,7 @@ multiclass VST2QWB<bits<4> op7_4, string Dt> {
IIC_VLD1u,
"vst2", Dt, "$Vd, $Rn, $Rm",
"$Rn.addr = $wb", []> {
let Inst{4} = Rn{4};
let Inst{5-4} = Rn{5-4};
let DecoderMethod = "DecodeVSTInstruction";
let AsmMatchConverter = "cvtVSTwbRegister";
}

12
test/MC/ARM/neon-vst-encoding.s
View File

@ -37,6 +37,12 @@
vst2.8 {d16, d17, d18, d19}, [r0, :64]
vst2.16 {d16, d17, d18, d19}, [r0, :128]
vst2.32 {d16, d17, d18, d19}, [r0, :256]
vst2.8 {d16, d17}, [r0, :64]!
vst2.16 {q15}, [r0, :128]!
vst2.32 {d14, d15}, [r0]!
vst2.8 {d16, d17, d18, d19}, [r0, :64]!
vst2.16 {d18-d21}, [r0, :128]!
vst2.32 {q4, q5}, [r0, :256]!
@ CHECK: vst2.8 {d16, d17}, [r0, :64] @ encoding: [0x1f,0x08,0x40,0xf4]
@ CHECK: vst2.16 {d16, d17}, [r0, :128] @ encoding: [0x6f,0x08,0x40,0xf4]
@ -44,6 +50,12 @@
@ CHECK: vst2.8 {d16, d17, d18, d19}, [r0, :64] @ encoding: [0x1f,0x03,0x40,0xf4]
@ CHECK: vst2.16 {d16, d17, d18, d19}, [r0, :128] @ encoding: [0x6f,0x03,0x40,0xf4]
@ CHECK: vst2.32 {d16, d17, d18, d19}, [r0, :256] @ encoding: [0xbf,0x03,0x40,0xf4]
@ CHECK: vst2.8 {d16, d17}, [r0, :64]! @ encoding: [0x1d,0x08,0x40,0xf4]
@ CHECK: vst2.16 {d30, d31}, [r0, :128]! @ encoding: [0x6d,0xe8,0x40,0xf4]
@ CHECK: vst2.32 {d14, d15}, [r0]! @ encoding: [0x8d,0xe8,0x00,0xf4]
@ CHECK: vst2.8 {d16, d17, d18, d19}, [r0, :64]! @ encoding: [0x1d,0x03,0x40,0xf4]
@ CHECK: vst2.16 {d18, d19, d20, d21}, [r0, :128]! @ encoding: [0x6d,0x23,0x40,0xf4]
@ CHECK: vst2.32 {d8, d9, d10, d11}, [r0, :256]! @ encoding: [0xbd,0x83,0x00,0xf4]
@ vst3.8 {d16, d17, d18}, [r0, :64]