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AMDGPU: Add comment about clamps

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llvm-svn: 314952
This commit is contained in:
Matt Arsenault 2017-10-05 00:13:20 +00:00
parent 263f0dbf65
commit d79bc6a3f1
1 changed files with 2 additions and 0 deletions
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2
lib/Target/AMDGPU/SIFoldOperands.cpp
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@ -723,6 +723,8 @@ void SIFoldOperands::foldInstOperand(MachineInstr &MI,
}
}
// Clamp patterns are canonically selected to v_max_* instructions, so only
// handle them.
const MachineOperand *SIFoldOperands::isClamp(const MachineInstr &MI) const {
unsigned Op = MI.getOpcode();
switch (Op) {