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New case to handle someday
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24075 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -217,5 +217,22 @@ _test:
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stw r2, 0(r3)
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blr
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===-------------------------------------------------------------------------===
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Compile
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int foo(int a) { return a * -2 + 63; }
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to
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_foo:
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slwi r0,r3,1
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subfic r3,r0,63
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blr
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instead of:
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_foo:
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mulli r2,r3,-2
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addi r3,r2,63
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blr
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