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ARM: remove unused patterns.

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There is no sane way for an LEApcrel (= single ADR) instruction to generate a
global address on any ARM target I know of. Fortunately, no-one was trying to
any more, but there were vestigial patterns.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195644 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Tim Northover 2013-11-25 14:40:57 +00:00
parent b42574a1f2
commit 761bf235a8
3 changed files with 1 additions and 6 deletions
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2
lib/Target/ARM/ARMInstrInfo.td
View File

@ -5206,8 +5206,6 @@ def MOV_ga_pcrel_ldr : PseudoInst<(outs GPR:$dst), (ins i32imm:$addr),
} // isReMaterializable
// ConstantPool, GlobalAddress, and JumpTable
def : ARMPat<(ARMWrapper tglobaladdr :$dst), (LEApcrel tglobaladdr :$dst)>,
Requires<[IsARM, DontUseMovt]>;
def : ARMPat<(ARMWrapper tconstpool :$dst), (LEApcrel tconstpool :$dst)>;
def : ARMPat<(ARMWrapper tglobaladdr :$dst), (MOVi32imm tglobaladdr :$dst)>,
Requires<[IsARM, UseMovt]>;

3
lib/Target/ARM/ARMInstrThumb.td
View File

@ -1306,8 +1306,7 @@ def : T1Pat<(addc tGPR:$lhs, imm8_255_neg:$rhs),
def : T1Pat<(subc tGPR:$lhs, tGPR:$rhs),
(tSUBrr tGPR:$lhs, tGPR:$rhs)>;
// ConstantPool, GlobalAddress
def : T1Pat<(ARMWrapper tglobaladdr :$dst), (tLEApcrel tglobaladdr :$dst)>;
// ConstantPool
def : T1Pat<(ARMWrapper tconstpool :$dst), (tLEApcrel tconstpool :$dst)>;
// JumpTable

2
lib/Target/ARM/ARMInstrThumb2.td
View File

@ -3800,8 +3800,6 @@ def t2MOV_ga_dyn : PseudoInst<(outs rGPR:$dst), (ins i32imm:$addr),
}
// ConstantPool, GlobalAddress, and JumpTable
def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2LEApcrel tglobaladdr :$dst)>,
Requires<[IsThumb2, DontUseMovt]>;
def : T2Pat<(ARMWrapper tconstpool :$dst), (t2LEApcrel tconstpool :$dst)>;
def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2MOVi32imm tglobaladdr :$dst)>,
Requires<[IsThumb2, UseMovt]>;