Use SmallDenseMap instead of std::map

RKSimon · RKSimon · commit c2555404ec83 · 2024-12-18T10:37:10.000Z
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -30058,7 +30058,7 @@ static SDValue LowerShift(SDValue Op, const X86Subtarget &Subtarget,
   }
 
   // Build a map of inrange constant amounts with element mask where they occur.
-  std::map<unsigned, APInt> UniqueCstAmt;
+  SmallDenseMap<unsigned, APInt, 16> UniqueCstAmt;
   if (ConstantAmt) {
     for (unsigned I = 0; I != NumElts; ++I) {
       SDValue A = Amt.getOperand(I);

Original file line number	Diff line number	Diff line change
`@@ -30058,7 +30058,7 @@ static SDValue LowerShift(SDValue Op, const X86Subtarget &Subtarget,`
`30058`	`30058`	`}`
`30059`	`30059`
`30060`	`30060`	`// Build a map of inrange constant amounts with element mask where they occur.`
`30061`		`- std::map<unsigned, APInt> UniqueCstAmt;`
	`30061`	`+ SmallDenseMap<unsigned, APInt, 16> UniqueCstAmt;`
`30062`	`30062`	`if (ConstantAmt) {`
`30063`	`30063`	`for (unsigned I = 0; I != NumElts; ++I) {`
`30064`	`30064`	`SDValue A = Amt.getOperand(I);`