diff options
Diffstat (limited to 'lib/Target/ARM/ARMInstrFormats.td')
| -rw-r--r-- | lib/Target/ARM/ARMInstrFormats.td | 91 |
1 files changed, 21 insertions, 70 deletions
diff --git a/lib/Target/ARM/ARMInstrFormats.td b/lib/Target/ARM/ARMInstrFormats.td index 80f3773..1d38bcf 100644 --- a/lib/Target/ARM/ARMInstrFormats.td +++ b/lib/Target/ARM/ARMInstrFormats.td @@ -1,4 +1,4 @@ -//===- ARMInstrFormats.td - ARM Instruction Formats ----------*- tablegen -*-=// +//===-- ARMInstrFormats.td - ARM Instruction Formats -------*- tablegen -*-===// // // The LLVM Compiler Infrastructure // @@ -290,6 +290,14 @@ class InstTemplate<AddrMode am, int sz, IndexMode im, class Encoding { field bits<32> Inst; + // Mask of bits that cause an encoding to be UNPREDICTABLE. + // If a bit is set, then if the corresponding bit in the + // target encoding differs from its value in the "Inst" field, + // the instruction is UNPREDICTABLE (SoftFail in abstract parlance). + field bits<32> Unpredictable = 0; + // SoftFail is the generic name for this field, but we alias it so + // as to make it more obvious what it means in ARM-land. + field bits<32> SoftFail = Unpredictable; } class InstARM<AddrMode am, int sz, IndexMode im, @@ -1594,8 +1602,11 @@ class AVConv1XI<bits<5> op1, bits<2> op2, bits<4> op3, bits<4> op4, bit op5, dag oops, dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern> : AVConv1I<op1, op2, op3, op4, oops, iops, itin, opc, asm, pattern> { + bits<5> fbits; // size (fixed-point number): sx == 0 ? 16 : 32 let Inst{7} = op5; // sx + let Inst{5} = fbits{0}; + let Inst{3-0} = fbits{4-1}; } // VFP conversion instructions, if no NEON @@ -2019,6 +2030,15 @@ multiclass VFPDTAnyInstAlias<string opc, string asm, dag Result> { def : VFPDataTypeInstAlias<opc, ".64", asm, Result>; } +multiclass NEONDTAnyInstAlias<string opc, string asm, dag Result> { + let Predicates = [HasNEON] in { + def : VFPDataTypeInstAlias<opc, ".8", asm, Result>; + def : VFPDataTypeInstAlias<opc, ".16", asm, Result>; + def : VFPDataTypeInstAlias<opc, ".32", asm, Result>; + def : VFPDataTypeInstAlias<opc, ".64", asm, Result>; +} +} + // The same alias classes using AsmPseudo instead, for the more complex // stuff in NEON that InstAlias can't quite handle. // Note that we can't use anonymous defm references here like we can @@ -2026,75 +2046,6 @@ multiclass VFPDTAnyInstAlias<string opc, string asm, dag Result> { // for instalias defs. class NEONDataTypeAsmPseudoInst<string opc, string dt, string asm, dag iops> : AsmPseudoInst<!strconcat(opc, dt, "\t", asm), iops>, Requires<[HasNEON]>; -multiclass NEONDT8ReqAsmPseudoInst<string opc, string asm, dag iops> { - def I8 : NEONDataTypeAsmPseudoInst<opc, ".i8", asm, iops>; - def S8 : NEONDataTypeAsmPseudoInst<opc, ".s8", asm, iops>; - def U8 : NEONDataTypeAsmPseudoInst<opc, ".u8", asm, iops>; - def P8 : NEONDataTypeAsmPseudoInst<opc, ".p8", asm, iops>; -} -// NEONDT8ReqAsmPseudoInst plus plain ".8" -multiclass NEONDT8AsmPseudoInst<string opc, string asm, dag iops> { - def _8 : NEONDataTypeAsmPseudoInst<opc, ".8", asm, iops>; - defm _ : NEONDT8ReqAsmPseudoInst<opc, asm, iops>; -} -multiclass NEONDT16ReqAsmPseudoInst<string opc, string asm, dag iops> { - def I16 : NEONDataTypeAsmPseudoInst<opc, ".i16", asm, iops>; - def S16 : NEONDataTypeAsmPseudoInst<opc, ".s16", asm, iops>; - def U16 : NEONDataTypeAsmPseudoInst<opc, ".u16", asm, iops>; - def P16 : NEONDataTypeAsmPseudoInst<opc, ".p16", asm, iops>; -} -// NEONDT16ReqAsmPseudoInst plus plain ".16" -multiclass NEONDT16AsmPseudoInst<string opc, string asm, dag iops> { - def _16 : NEONDataTypeAsmPseudoInst<opc, ".16", asm, iops>; - defm _ : NEONDT16ReqAsmPseudoInst<opc, asm, iops>; -} -multiclass NEONDT32ReqAsmPseudoInst<string opc, string asm, dag iops> { - def I32 : NEONDataTypeAsmPseudoInst<opc, ".i32", asm, iops>; - def S32 : NEONDataTypeAsmPseudoInst<opc, ".s32", asm, iops>; - def U32 : NEONDataTypeAsmPseudoInst<opc, ".u32", asm, iops>; - def F32 : NEONDataTypeAsmPseudoInst<opc, ".f32", asm, iops>; - def F : NEONDataTypeAsmPseudoInst<opc, ".f", asm, iops>; -} -// NEONDT32ReqAsmPseudoInst plus plain ".32" -multiclass NEONDT32AsmPseudoInst<string opc, string asm, dag iops> { - def _32 : NEONDataTypeAsmPseudoInst<opc, ".32", asm, iops>; - defm _ : NEONDT32ReqAsmPseudoInst<opc, asm, iops>; -} -multiclass NEONDT64ReqAsmPseudoInst<string opc, string asm, dag iops> { - def I64 : NEONDataTypeAsmPseudoInst<opc, ".i64", asm, iops>; - def S64 : NEONDataTypeAsmPseudoInst<opc, ".s64", asm, iops>; - def U64 : NEONDataTypeAsmPseudoInst<opc, ".u64", asm, iops>; - def F64 : NEONDataTypeAsmPseudoInst<opc, ".f64", asm, iops>; - def D : NEONDataTypeAsmPseudoInst<opc, ".d", asm, iops>; -} -// NEONDT64ReqAsmPseudoInst plus plain ".64" -multiclass NEONDT64AsmPseudoInst<string opc, string asm, dag iops> { - def _64 : NEONDataTypeAsmPseudoInst<opc, ".64", asm, iops>; - defm _ : NEONDT64ReqAsmPseudoInst<opc, asm, iops>; -} -multiclass NEONDT64NoF64ReqAsmPseudoInst<string opc, string asm, dag iops> { - def I64 : NEONDataTypeAsmPseudoInst<opc, ".i64", asm, iops>; - def S64 : NEONDataTypeAsmPseudoInst<opc, ".s64", asm, iops>; - def U64 : NEONDataTypeAsmPseudoInst<opc, ".u64", asm, iops>; - def D : NEONDataTypeAsmPseudoInst<opc, ".d", asm, iops>; -} -// NEONDT64ReqAsmPseudoInst plus plain ".64" -multiclass NEONDT64NoF64AsmPseudoInst<string opc, string asm, dag iops> { - def _64 : NEONDataTypeAsmPseudoInst<opc, ".64", asm, iops>; - defm _ : NEONDT64ReqAsmPseudoInst<opc, asm, iops>; -} -multiclass NEONDTAnyAsmPseudoInst<string opc, string asm, dag iops> { - defm _ : NEONDT8AsmPseudoInst<opc, asm, iops>; - defm _ : NEONDT16AsmPseudoInst<opc, asm, iops>; - defm _ : NEONDT32AsmPseudoInst<opc, asm, iops>; - defm _ : NEONDT64AsmPseudoInst<opc, asm, iops>; -} -multiclass NEONDTAnyNoF64AsmPseudoInst<string opc, string asm, dag iops> { - defm _ : NEONDT8AsmPseudoInst<opc, asm, iops>; - defm _ : NEONDT16AsmPseudoInst<opc, asm, iops>; - defm _ : NEONDT32AsmPseudoInst<opc, asm, iops>; - defm _ : NEONDT64NoF64AsmPseudoInst<opc, asm, iops>; -} // Data type suffix token aliases. Implements Table A7-3 in the ARM ARM. def : TokenAlias<".s8", ".i8">; |