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| author | Chris Lattner <sabre@nondot.org> | 2006-06-20 22:38:59 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2006-06-20 22:38:59 +0000 |
| commit | eded521a17fa2b39f6b1f9af5943036312bb3149 (patch) | |
| tree | 4b975df0e5aea63adce83f1cc2fe97c28cab9217 /lib/Target/PowerPC | |
| parent | 0ea70b219a8408a25eaa522cbfc7e09f6dbc9d87 (diff) | |
| download | external_llvm-eded521a17fa2b39f6b1f9af5943036312bb3149.zip external_llvm-eded521a17fa2b39f6b1f9af5943036312bb3149.tar.gz external_llvm-eded521a17fa2b39f6b1f9af5943036312bb3149.tar.bz2 | |
Instead of li/xoris use li/oris. Note that this doesn't work if bit 15 is
set, so disable the pattern in that case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28884 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/PowerPC')
| -rw-r--r-- | lib/Target/PowerPC/PPCInstr64Bit.td | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/lib/Target/PowerPC/PPCInstr64Bit.td b/lib/Target/PowerPC/PPCInstr64Bit.td index 4199650..8fd656b 100644 --- a/lib/Target/PowerPC/PPCInstr64Bit.td +++ b/lib/Target/PowerPC/PPCInstr64Bit.td @@ -227,12 +227,12 @@ def sext_0x0000_0000_FFFF_FFFF_i16 : PatLeaf<(imm), [{ def : Pat<(i64 sext_0x0000_0000_FFFF_FFFF_i16:$imm), (ORI8 (LIS8 (HI16 imm:$imm)), (LO16 imm:$imm))>; -// zext(0x0000_0000_FFFF_FFFF, i16) -> xoris (li lo16(imm)), imm>>16 -def zext_0x0000_0000_FFFF_FFFF_i16 : PatLeaf<(imm), [{ - return (N->getValue() & 0xFFFFFFFF00000000ULL) == 0; +// zext(0x0000_0000_FFFF_7FFF, i16) -> oris (li lo16(imm)), imm>>16 +def zext_0x0000_0000_FFFF_7FFF_i16 : PatLeaf<(imm), [{ + return (N->getValue() & 0xFFFFFFFF00008000ULL) == 0; }]>; -def : Pat<(i64 zext_0x0000_0000_FFFF_FFFF_i16:$imm), - (XORIS8 (LI8 (LO16 imm:$imm)), (HI16 imm:$imm))>; +def : Pat<(i64 zext_0x0000_0000_FFFF_7FFF_i16:$imm), + (ORIS8 (LI8 (LO16 imm:$imm)), (HI16 imm:$imm))>; |