maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

[SelectionDAG] ComputeNumSignBits - clang-format + improve *EXTLOAD comments. NFCI. 

Pre-commit requested for D62777.

llvm-svn: 362485
This commit is contained in:
Simon Pilgrim 2019-06-04 10:17:56 +00:00
parent 5d5078e341
commit 3178546a27
1 changed files with 7 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
View File

@ -3878,13 +3878,13 @@ unsigned SelectionDAG::ComputeNumSignBits(SDValue Op, const APInt &DemandedElts,
if (LoadSDNode *LD = dyn_cast<LoadSDNode>(Op)) {
unsigned ExtType = LD->getExtensionType();
switch (ExtType) {
default: break;
case ISD::SEXTLOAD: // '17' bits known
Tmp = LD->getMemoryVT().getScalarSizeInBits();
return VTBits-Tmp+1;
case ISD::ZEXTLOAD: // '16' bits known
Tmp = LD->getMemoryVT().getScalarSizeInBits();
return VTBits-Tmp;
default: break;
case ISD::SEXTLOAD: // e.g. i16->i32 = '17' bits known.
Tmp = LD->getMemoryVT().getScalarSizeInBits();
return VTBits - Tmp + 1;
case ISD::ZEXTLOAD: // e.g. i16->i32 = '16' bits known.
Tmp = LD->getMemoryVT().getScalarSizeInBits();
return VTBits - Tmp;
}
}
}