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Add patterns for matching extloads with 64-bit address. The patterns are enabled

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only when the target ABI is N64.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147001 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Akira Hatanaka 2011-12-20 22:33:53 +00:00
parent 3cbe43fe69
commit ab05b6c227
1 changed files with 13 additions and 5 deletions
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18
lib/Target/Mips/MipsInstrInfo.td
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@ -1008,11 +1008,19 @@ def : WrapperPat<tglobaltlsaddr, ADDiu, GP>;
def : Pat<(not CPURegs:$in),
(NOR CPURegs:$in, ZERO)>;
// extended load and stores
def : Pat<(extloadi1 addr:$src), (LBu addr:$src)>;
def : Pat<(extloadi8 addr:$src), (LBu addr:$src)>;
def : Pat<(extloadi16_a addr:$src), (LHu addr:$src)>;
def : Pat<(extloadi16_u addr:$src), (ULHu addr:$src)>;
// extended loads
let Predicates = [NotN64] in {
def : Pat<(i32 (extloadi1 addr:$src)), (LBu addr:$src)>;
def : Pat<(i32 (extloadi8 addr:$src)), (LBu addr:$src)>;
def : Pat<(i32 (extloadi16_a addr:$src)), (LHu addr:$src)>;
def : Pat<(i32 (extloadi16_u addr:$src)), (ULHu addr:$src)>;
}
let Predicates = [IsN64] in {
def : Pat<(i32 (extloadi1 addr:$src)), (LBu_P8 addr:$src)>;
def : Pat<(i32 (extloadi8 addr:$src)), (LBu_P8 addr:$src)>;
def : Pat<(i32 (extloadi16_a addr:$src)), (LHu_P8 addr:$src)>;
def : Pat<(i32 (extloadi16_u addr:$src)), (ULHu_P8 addr:$src)>;
}
// peepholes
def : Pat<(store (i32 0), addr:$dst), (SW ZERO, addr:$dst)>,