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| author | Richard Sandiford <rsandifo@linux.vnet.ibm.com> | 2013-06-27 09:38:48 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@linux.vnet.ibm.com> | 2013-06-27 09:38:48 +0000 |
| commit | a6e12b575676875d9ff8f3c01e0cd44ab1210d3a (patch) | |
| tree | b36f3aeea3ef8b7da2e66a254b4997d8d20f99c2 /lib/Target | |
| parent | 722e9e6d0a5b67d136be40bc015abc5b0b32f97b (diff) | |
| download | external_llvm-a6e12b575676875d9ff8f3c01e0cd44ab1210d3a.zip external_llvm-a6e12b575676875d9ff8f3c01e0cd44ab1210d3a.tar.gz external_llvm-a6e12b575676875d9ff8f3c01e0cd44ab1210d3a.tar.bz2 | |
[SystemZ] Allow immediate moves to be rematerialized
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185068 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 44ff1d0..7debcdd 100644 --- a/lib/Target/SystemZ/SystemZInstrInfo.td +++ b/lib/Target/SystemZ/SystemZInstrInfo.td @@ -222,7 +222,8 @@ let neverHasSideEffects = 1 in { } // Immediate moves. -let neverHasSideEffects = 1, isAsCheapAsAMove = 1, isMoveImm = 1 in { +let neverHasSideEffects = 1, isAsCheapAsAMove = 1, isMoveImm = 1, + isReMaterializable = 1 in { // 16-bit sign-extended immediates. def LHI : UnaryRI<"lhi", 0xA78, bitconvert, GR32, imm32sx16>; def LGHI : UnaryRI<"lghi", 0xA79, bitconvert, GR64, imm64sx16>; @@ -476,7 +477,8 @@ def IIHH : BinaryRI<"iihh", 0xA50, inserthh, GR64, imm64hh16>; // full-width move. (We use IILF rather than something like LLILF // for 32-bit moves because IILF leaves the upper 32 bits of the // GR64 unchanged.) -let isCodeGenOnly = 1 in { +let isCodeGenOnly = 1, isAsCheapAsAMove = 1, isMoveImm = 1, + isReMaterializable = 1 in { def IILF32 : UnaryRIL<"iilf", 0xC09, bitconvert, GR32, uimm32>; } def IILF : BinaryRIL<"iilf", 0xC09, insertlf, GR64, imm64lf32>; |