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Move ARM subreg index compositions to the SubRegIndex itself.

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llvm-svn: 149557
This commit is contained in:
Jakob Stoklund Olesen 2012-02-01 23:16:43 +00:00
parent 230a0a4b40
commit 1410489492
1 changed files with 22 additions and 28 deletions
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50
lib/Target/ARM/ARMRegisterInfo.td
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@ -27,28 +27,30 @@ class ARMFReg<bits<6> num, string n> : Register<n> {
// Subregister indices.
let Namespace = "ARM" in {
def qqsub_0 : SubRegIndex;
def qqsub_1 : SubRegIndex;
// Note: Code depends on these having consecutive numbers.
def ssub_0 : SubRegIndex;
def ssub_1 : SubRegIndex;
def ssub_2 : SubRegIndex; // In a Q reg.
def ssub_3 : SubRegIndex;
def qsub_0 : SubRegIndex;
def qsub_1 : SubRegIndex;
def qsub_2 : SubRegIndex<[qqsub_1, qsub_0]>;
def qsub_3 : SubRegIndex<[qqsub_1, qsub_1]>;
def dsub_0 : SubRegIndex;
def dsub_1 : SubRegIndex;
def dsub_2 : SubRegIndex;
def dsub_3 : SubRegIndex;
def dsub_4 : SubRegIndex;
def dsub_5 : SubRegIndex;
def dsub_6 : SubRegIndex;
def dsub_7 : SubRegIndex;
def dsub_2 : SubRegIndex<[qsub_1, dsub_0]>;
def dsub_3 : SubRegIndex<[qsub_1, dsub_1]>;
def dsub_4 : SubRegIndex<[qsub_2, dsub_0]>;
def dsub_5 : SubRegIndex<[qsub_2, dsub_1]>;
def dsub_6 : SubRegIndex<[qsub_3, dsub_0]>;
def dsub_7 : SubRegIndex<[qsub_3, dsub_1]>;
def qsub_0 : SubRegIndex;
def qsub_1 : SubRegIndex;
def qsub_2 : SubRegIndex;
def qsub_3 : SubRegIndex;
def qqsub_0 : SubRegIndex;
def qqsub_1 : SubRegIndex;
def ssub_0 : SubRegIndex;
def ssub_1 : SubRegIndex;
def ssub_2 : SubRegIndex<[dsub_1, ssub_0]>;
def ssub_3 : SubRegIndex<[dsub_1, ssub_1]>;
// Let TableGen synthesize the remaining 12 ssub_* indices.
// We don't need to name them.
}
// Integer registers
@ -129,9 +131,7 @@ def D30 : ARMFReg<30, "d30">, DwarfRegNum<[286]>;
def D31 : ARMFReg<31, "d31">, DwarfRegNum<[287]>;
// Advanced SIMD (NEON) defines 16 quad-word aliases
let SubRegIndices = [dsub_0, dsub_1],
CompositeIndices = [(ssub_2 dsub_1, ssub_0),
(ssub_3 dsub_1, ssub_1)] in {
let SubRegIndices = [dsub_0, dsub_1] in {
def Q0 : ARMReg< 0, "q0", [D0, D1]>;
def Q1 : ARMReg< 1, "q1", [D2, D3]>;
def Q2 : ARMReg< 2, "q2", [D4, D5]>;
@ -297,9 +297,7 @@ def QPR_8 : RegisterClass<"ARM", [v16i8, v8i16, v4i32, v2i64, v4f32, v2f64],
// stuff very messy.
def Tuples2Q : RegisterTuples<[qsub_0, qsub_1],
[(decimate QPR, 2),
(decimate (shl QPR, 1), 2)]> {
let CompositeIndices = [(dsub_2 qsub_1, dsub_0), (dsub_3 qsub_1, dsub_1)];
}
(decimate (shl QPR, 1), 2)]>;
// Pseudo 256-bit vector register class to model pairs of Q registers
// (4 consecutive D registers).
@ -314,11 +312,7 @@ def QQPR : RegisterClass<"ARM", [v4i64], 256, (add Tuples2Q)> {
// Pseudo 512-bit registers to represent four consecutive Q registers.
def Tuples2QQ : RegisterTuples<[qqsub_0, qqsub_1],
[(decimate QQPR, 2),
(decimate (shl QQPR, 1), 2)]> {
let CompositeIndices = [(qsub_2 qqsub_1, qsub_0), (qsub_3 qqsub_1, qsub_1),
(dsub_4 qqsub_1, dsub_0), (dsub_5 qqsub_1, dsub_1),
(dsub_6 qqsub_1, dsub_2), (dsub_7 qqsub_1, dsub_3)];
}
(decimate (shl QQPR, 1), 2)]>;
// Pseudo 512-bit vector register class to model 4 consecutive Q registers
// (8 consecutive D registers).