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-rw-r--r--lib/Target/Mips/MipsSEInstrInfo.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/lib/Target/Mips/MipsSEInstrInfo.h b/lib/Target/Mips/MipsSEInstrInfo.h
index f4c29b1676..e44ff42b70 100644
--- a/lib/Target/Mips/MipsSEInstrInfo.h
+++ b/lib/Target/Mips/MipsSEInstrInfo.h
@@ -83,9 +83,21 @@ private:
void expandRetRA(MachineBasicBlock &MBB, MachineBasicBlock::iterator I,
unsigned Opc) const;
+
+ /// Expand pseudo Int-to-FP conversion instructions.
+ ///
+ /// For example, the following pseudo instruction
+ /// PseudoCVT_D32_W D2, A5
+ /// gets expanded into these two instructions:
+ /// MTC1 F4, A5
+ /// CVT_D32_W D2, F4
+ ///
+ /// We do this expansion post-RA to avoid inserting a floating point copy
+ /// instruction between MTC1 and CVT_D32_W.
void expandCvtFPInt(MachineBasicBlock &MBB, MachineBasicBlock::iterator I,
unsigned CvtOpc, unsigned MovOpc, bool DstIsLarger,
bool SrcIsLarger, bool IsI64) const;
+
void expandExtractElementF64(MachineBasicBlock &MBB,
MachineBasicBlock::iterator I) const;
void expandBuildPairF64(MachineBasicBlock &MBB,