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Add a testcase to make sure that we don't emit two fneg instructions back
to back for certain fsel instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21176 91177308-0d34-0410-b5e6-96231b3b80d8
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test/CodeGen/PowerPC/fnegsel.ll
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8
test/CodeGen/PowerPC/fnegsel.ll
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@ -0,0 +1,8 @@
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; RUN: llvm-as < %s | llc -march=ppc32 -enable-ppc-pattern-isel | not grep fneg
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double %test_fneg_sel(double %A, double %B, double %C) {
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%D = sub double -0.0, %A
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%Cond = setgt double %D, -0.0
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%E = select bool %Cond, double %B, double %C
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ret double %E
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}
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