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Eliminate the ARM sub-register indexes that are not needed by the sources.

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Tablegen will invent its own names for these indexes, and the register file is a
bit simpler.

llvm-svn: 131059
This commit is contained in:
Jakob Stoklund Olesen 2011-05-07 21:22:42 +00:00
parent 3bc1816380
commit 4a57c64408
1 changed files with 6 additions and 33 deletions
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39
lib/Target/ARM/ARMRegisterInfo.td
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@ -30,18 +30,6 @@ def ssub_0 : SubRegIndex;
def ssub_1 : SubRegIndex;
def ssub_2 : SubRegIndex; // In a Q reg.
def ssub_3 : SubRegIndex;
def ssub_4 : SubRegIndex; // In a QQ reg.
def ssub_5 : SubRegIndex;
def ssub_6 : SubRegIndex;
def ssub_7 : SubRegIndex;
def ssub_8 : SubRegIndex; // In a QQQQ reg.
def ssub_9 : SubRegIndex;
def ssub_10 : SubRegIndex;
def ssub_11 : SubRegIndex;
def ssub_12 : SubRegIndex;
def ssub_13 : SubRegIndex;
def ssub_14 : SubRegIndex;
def ssub_15 : SubRegIndex;
def dsub_0 : SubRegIndex;
def dsub_1 : SubRegIndex;
@ -169,43 +157,28 @@ def Q15 : ARMReg<15, "q15", [D30, D31]>;
// starting D register number doesn't have to be multiple of 4, e.g.,
// D1, D2, D3, D4 would be a legal quad, but that would make the subregister
// stuff very messy.
let SubRegIndices = [qsub_0, qsub_1] in {
let CompositeIndices = [(dsub_2 qsub_1, dsub_0), (dsub_3 qsub_1, dsub_1),
(ssub_4 qsub_1, ssub_0), (ssub_5 qsub_1, ssub_1),
(ssub_6 qsub_1, ssub_2), (ssub_7 qsub_1, ssub_3)] in {
let SubRegIndices = [qsub_0, qsub_1],
CompositeIndices = [(dsub_2 qsub_1, dsub_0), (dsub_3 qsub_1, dsub_1)] in {
def QQ0 : ARMReg<0, "qq0", [Q0, Q1]>;
def QQ1 : ARMReg<1, "qq1", [Q2, Q3]>;
def QQ2 : ARMReg<2, "qq2", [Q4, Q5]>;
def QQ3 : ARMReg<3, "qq3", [Q6, Q7]>;
}
let CompositeIndices = [(dsub_2 qsub_1, dsub_0), (dsub_3 qsub_1, dsub_1)] in {
def QQ4 : ARMReg<4, "qq4", [Q8, Q9]>;
def QQ5 : ARMReg<5, "qq5", [Q10, Q11]>;
def QQ6 : ARMReg<6, "qq6", [Q12, Q13]>;
def QQ7 : ARMReg<7, "qq7", [Q14, Q15]>;
}
}
// Pseudo 512-bit registers to represent four consecutive Q registers.
let SubRegIndices = [qqsub_0, qqsub_1] in {
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),
(ssub_8 qqsub_1, ssub_0), (ssub_9 qqsub_1, ssub_1),
(ssub_10 qqsub_1, ssub_2), (ssub_11 qqsub_1, ssub_3),
(ssub_12 qqsub_1, ssub_4), (ssub_13 qqsub_1, ssub_5),
(ssub_14 qqsub_1, ssub_6), (ssub_15 qqsub_1, ssub_7)] in
{
let SubRegIndices = [qqsub_0, qqsub_1],
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)] in {
def QQQQ0 : ARMReg<0, "qqqq0", [QQ0, QQ1]>;
def QQQQ1 : ARMReg<1, "qqqq1", [QQ2, QQ3]>;
}
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)] in {
def QQQQ2 : ARMReg<2, "qqqq2", [QQ4, QQ5]>;
def QQQQ3 : ARMReg<3, "qqqq3", [QQ6, QQ7]>;
}
}
// Current Program Status Register.
def CPSR : ARMReg<0, "cpsr">;