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| author | Richard Sandiford <rsandifo@linux.vnet.ibm.com> | 2013-06-27 09:42:10 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@linux.vnet.ibm.com> | 2013-06-27 09:42:10 +0000 |
| commit | 7d884e4636fcd9572c5a00aec9bfcb97a0244172 (patch) | |
| tree | 0599e107b1d9e950fdd5aad3845967054e86b154 /lib/Target | |
| parent | a6e12b575676875d9ff8f3c01e0cd44ab1210d3a (diff) | |
| download | external_llvm-7d884e4636fcd9572c5a00aec9bfcb97a0244172.zip external_llvm-7d884e4636fcd9572c5a00aec9bfcb97a0244172.tar.gz external_llvm-7d884e4636fcd9572c5a00aec9bfcb97a0244172.tar.bz2 | |
[SystemZ] Allow LA and LARL to be rematerialized
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185069 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target')
| -rw-r--r-- | lib/Target/SystemZ/SystemZInstrInfo.td | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/lib/Target/SystemZ/SystemZInstrInfo.td b/lib/Target/SystemZ/SystemZInstrInfo.td index 7debcdd..ff0d566 100644 --- a/lib/Target/SystemZ/SystemZInstrInfo.td +++ b/lib/Target/SystemZ/SystemZInstrInfo.td @@ -417,7 +417,8 @@ def STRVG : StoreRXY<"strvg", 0xE32F, storeu<bswap, nonvolatile_store>, GR64>; //===----------------------------------------------------------------------===// // Load BDX-style addresses. -let neverHasSideEffects = 1, Function = "la" in { +let neverHasSideEffects = 1, isAsCheapAsAMove = 1, isReMaterializable = 1, + Function = "la" in { let PairType = "12" in def LA : InstRX<0x41, (outs GR64:$R1), (ins laaddr12pair:$XBD2), "la\t$R1, $XBD2", @@ -430,7 +431,8 @@ let neverHasSideEffects = 1, Function = "la" in { // Load a PC-relative address. There's no version of this instruction // with a 16-bit offset, so there's no relaxation. -let neverHasSideEffects = 1 in { +let neverHasSideEffects = 1, isAsCheapAsAMove = 1, isMoveImm = 1, + isReMaterializable = 1 in { def LARL : InstRIL<0xC00, (outs GR64:$R1), (ins pcrel32:$I2), "larl\t$R1, $I2", [(set GR64:$R1, pcrel32:$I2)]>; |