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Teach the dag isel generator how to construct arbitrary immediates. The
generated isel now tries li then lis, then lis+ori. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23418 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -774,7 +774,12 @@ def : Pat<(or GPRC:$in, imm:$imm),
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def : Pat<(xor GPRC:$in, imm:$imm),
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(XORIS (XORI GPRC:$in, (LO16 imm:$imm)), (HI16 imm:$imm))>;
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// Same as above, but using a temporary.
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// Arbitrary immediate support.
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def : Pat<(i32 imm:$imm),
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(ORI (LIS (HI16 imm:$imm)), (LO16 imm:$imm))>;
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// Same as above, but using a temporary. FIXME: implement temporaries :)
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/*
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def : Pattern<(xor GPRC:$in, imm:$imm),
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[(set GPRC:$tmp, (XORI GPRC:$in, (LO16 imm:$imm))),
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