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| author | Chris Lattner <sabre@nondot.org> | 2005-11-17 07:30:41 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2005-11-17 07:30:41 +0000 |
| commit | 860e8862c1fbd3b261da4a64a8c0096f9f373681 (patch) | |
| tree | ba95a7260d5d7f0c2ef8f5f3f64c65d2d8c86718 /lib/Target/PowerPC/PPCInstrInfo.td | |
| parent | db40dc2d631faa52f4fbe655c5d7677d9b2ede8c (diff) | |
| download | external_llvm-860e8862c1fbd3b261da4a64a8c0096f9f373681.zip external_llvm-860e8862c1fbd3b261da4a64a8c0096f9f373681.tar.gz external_llvm-860e8862c1fbd3b261da4a64a8c0096f9f373681.tar.bz2 | |
Add an initial hack at legalizing GlobalAddress into the appropriate nodes
on Darwin to remove smarts from the isel. This is currently disabled by
default (uncomment setOperationAction(ISD::GlobalAddress to enable it).
tblgen needs to become smarter about tglobaladdr nodes and bigger patterns
needed to be added to the .td file. However, we can currently emit stuff like
this: :)
li r2, lo16(L_x$non_lazy_ptr)
lis r3, ha16(L_x$non_lazy_ptr)
lwzx r2, r3, r2
The obvious improvements will follow.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24390 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/PowerPC/PPCInstrInfo.td')
| -rw-r--r-- | lib/Target/PowerPC/PPCInstrInfo.td | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/Target/PowerPC/PPCInstrInfo.td b/lib/Target/PowerPC/PPCInstrInfo.td index 54acd9b..c549fdd 100644 --- a/lib/Target/PowerPC/PPCInstrInfo.td +++ b/lib/Target/PowerPC/PPCInstrInfo.td @@ -27,6 +27,9 @@ def PPCfsel : SDNode<"PPCISD::FSEL", SDTypeProfile<1, 3, [SDTCisSameAs<0, 2>, SDTCisSameAs<0, 3>, SDTCisFP<0>, SDTCisVT<1, f64>]>, []>; +def PPChi : SDNode<"PPCISD::Hi", SDTIntBinOp, []>; +def PPClo : SDNode<"PPCISD::Lo", SDTIntBinOp, []>; + //===----------------------------------------------------------------------===// // PowerPC specific transformation functions and pattern fragments. // @@ -782,6 +785,11 @@ def : Pat<(srl GPRC:$in, imm:$imm), def : Pat<(srl G8RC:$in, imm:$imm), (RLDICL G8RC:$in, (SRL64 imm:$imm), imm:$imm)>; +// Hi and Lo for Darwin Global Addresses. +def : Pat<(PPChi tglobaladdr:$in, (i32 0)), (LIS node:$in)>; +def : Pat<(PPClo tglobaladdr:$in, (i32 0)), (LI node:$in)>; + + // Same as above, but using a temporary. FIXME: implement temporaries :) /* def : Pattern<(xor GPRC:$in, imm:$imm), |