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| author | Richard Osborne <richard@xmos.com> | 2009-08-02 22:45:24 +0000 |
|---|---|---|
| committer | Richard Osborne <richard@xmos.com> | 2009-08-02 22:45:24 +0000 |
| commit | d558ea5e0af2103e5d0d6db2445b8dcebda70234 (patch) | |
| tree | 3780893e6ce059388c24c8bfb4438498bca2f6bd /lib/Target/XCore | |
| parent | 3bb9b9a1ab0641694b5bc1aa3cdec42d69ef0606 (diff) | |
| download | llvm-d558ea5e0af2103e5d0d6db2445b8dcebda70234.tar.gz llvm-d558ea5e0af2103e5d0d6db2445b8dcebda70234.tar.bz2 llvm-d558ea5e0af2103e5d0d6db2445b8dcebda70234.tar.xz | |
Add extra SEXT pattern.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77920 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/XCore')
| -rw-r--r-- | lib/Target/XCore/XCoreInstrInfo.td | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/lib/Target/XCore/XCoreInstrInfo.td b/lib/Target/XCore/XCoreInstrInfo.td index 316d0566e8..9d9cbf0e8e 100644 --- a/lib/Target/XCore/XCoreInstrInfo.td +++ b/lib/Target/XCore/XCoreInstrInfo.td @@ -95,6 +95,12 @@ def neg_xform : SDNodeXForm<imm, [{ return getI32Imm(-value); }]>; +def bpwsub_xform : SDNodeXForm<imm, [{ + // Transformation function: 32-imm + uint32_t value = N->getZExtValue(); + return getI32Imm(32-value); +}]>; + def div4neg_xform : SDNodeXForm<imm, [{ // Transformation function: -imm/4 uint32_t value = N->getZExtValue(); @@ -162,6 +168,14 @@ def immBitp : PatLeaf<(imm), [{ || value == 32; }]>; +def immBpwSubBitp : PatLeaf<(imm), [{ + uint32_t value = (uint32_t)N->getZExtValue(); + return (value >= 24 && value <= 31) + || value == 16 + || value == 8 + || value == 0; +}]>; + def lda16f : PatFrag<(ops node:$addr, node:$offset), (add node:$addr, (shl node:$offset, 1))>; def lda16b : PatFrag<(ops node:$addr, node:$offset), @@ -989,3 +1003,5 @@ def : Pat<(mul GRRegs:$src, -3), def : Pat<(sra GRRegs:$src, 31), (ASHR_l2rus GRRegs:$src, 32)>; +def : Pat<(sra (shl GRRegs:$src, immBpwSubBitp:$imm), immBpwSubBitp:$imm), + (SEXT_rus GRRegs:$src, (bpwsub_xform immBpwSubBitp:$imm))>; |