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R600/SI: Allow using f32 rcp / rsq when denormals not handled.

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These are precise enough to use for OpenCL unless denormals
are handled.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213107 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Matt Arsenault
2014-07-15 23:50:10 +00:00
parent 6f7532bb97
commit a27bf373d9
6 changed files with 45 additions and 27 deletions
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1
lib/Target/R600/SIISelLowering.h
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@@ -27,6 +27,7 @@ class SITargetLowering : public AMDGPUTargetLowering {
SelectionDAG &DAG) const;
SDValue LowerLOAD(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerSELECT(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerFastFDIV(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerFDIV32(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerFDIV64(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerFDIV(SDValue Op, SelectionDAG &DAG) const;