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| author | Kalle Raiskila <kalle.raiskila@nokia.com> | 2010-11-12 10:14:03 +0000 |
|---|---|---|
| committer | Kalle Raiskila <kalle.raiskila@nokia.com> | 2010-11-12 10:14:03 +0000 |
| commit | 7ea1ab5f41299563eb648aed159cfaff09e774d8 (patch) | |
| tree | 9352a3ac97282d9786b31ae08a2d03057186984e /lib/Target/CellSPU/SPUISelLowering.h | |
| parent | d0c82a683e965f326e36a2bcaa85c00e917f8282 (diff) | |
| download | llvm-7ea1ab5f41299563eb648aed159cfaff09e774d8.tar.gz llvm-7ea1ab5f41299563eb648aed159cfaff09e774d8.tar.bz2 llvm-7ea1ab5f41299563eb648aed159cfaff09e774d8.tar.xz | |
Fix memory access lowering on SPU, adding
support for the case where alignment<value size.
These cases were silently miscompiled before this patch.
Now they are overly verbose -especially storing is- and
any front-end should still avoid misaligned memory
accesses as much as possible. The bit juggling algorithm
added here probably has some room for improvement still.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118889 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/CellSPU/SPUISelLowering.h')
| -rw-r--r-- | lib/Target/CellSPU/SPUISelLowering.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/Target/CellSPU/SPUISelLowering.h b/lib/Target/CellSPU/SPUISelLowering.h index 41d0826758..82f10270db 100644 --- a/lib/Target/CellSPU/SPUISelLowering.h +++ b/lib/Target/CellSPU/SPUISelLowering.h @@ -41,8 +41,9 @@ namespace llvm { CNTB, ///< Count leading ones in bytes PREFSLOT2VEC, ///< Promote scalar->vector VEC2PREFSLOT, ///< Extract element 0 - SHLQUAD_L_BITS, ///< Rotate quad left, by bits - SHLQUAD_L_BYTES, ///< Rotate quad left, by bytes + SHL_BITS, ///< Shift quad left, by bits + SHL_BYTES, ///< Shift quad left, by bytes + SRL_BYTES, ///< Shift quad right, by bytes. Insert zeros. VEC_ROTL, ///< Vector rotate left VEC_ROTR, ///< Vector rotate right ROTBYTES_LEFT, ///< Rotate bytes (loads -> ROTQBYI) |