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Add 64-bit to 32-bit trunc pattern.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143988 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Akira Hatanaka 2011-11-07 18:57:41 +00:00
parent 2ea402541f
commit bce22b48fe
1 changed files with 5 additions and 0 deletions
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5
lib/Target/Mips/Mips64InstrInfo.td
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@ -172,3 +172,8 @@ defm : SetlePats<CPU64Regs, SLT64, SLTu64>;
defm : SetgtPats<CPU64Regs, SLT64, SLTu64>;
defm : SetgePats<CPU64Regs, SLT64, SLTu64>;
defm : SetgeImmPats<CPU64Regs, SLTi64, SLTiu64>;
// truncate
def : Pat<(i32 (trunc CPU64Regs:$src)),
(SLL (EXTRACT_SUBREG CPU64Regs:$src, sub_32), 0)>, Requires<[IsN64]>;