[ConstraintSystem] Remove local variable that is set but not read [NFC]

mikaelholmen · mikaelholmen · commit bb037c2a7625 · 2020-09-17T14:26:48.000+02:00
gcc 7.4 warns about it.
diff --git a/llvm/lib/Analysis/ConstraintSystem.cpp b/llvm/lib/Analysis/ConstraintSystem.cpp
@@ -46,7 +46,6 @@ bool ConstraintSystem::eliminateUsingFM() {
     }
 
     // FIXME do not use copy
-    bool EliminatedInRow = false;
     for (unsigned R2 = R1 + 1; R2 < NumConstraints; R2++) {
       if (R1 == R2)
         continue;
@@ -85,7 +84,6 @@ bool ConstraintSystem::eliminateUsingFM() {
                      .getZExtValue();
       }
       NewSystem.push_back(std::move(NR));
-      EliminatedInRow = true;
     }
   }
   Constraints = std::move(NewSystem);

Original file line number	Diff line number	Diff line change
`@@ -46,7 +46,6 @@ bool ConstraintSystem::eliminateUsingFM() {`
`46`	`46`	`}`
`47`	`47`
`48`	`48`	`// FIXME do not use copy`
`49`		`- bool EliminatedInRow = false;`
`50`	`49`	`for (unsigned R2 = R1 + 1; R2 < NumConstraints; R2++) {`
`51`	`50`	`if (R1 == R2)`
`52`	`51`	`continue;`
`@@ -85,7 +84,6 @@ bool ConstraintSystem::eliminateUsingFM() {`
`85`	`84`	`.getZExtValue();`
`86`	`85`	`}`
`87`	`86`	`NewSystem.push_back(std::move(NR));`
`88`		`- EliminatedInRow = true;`
`89`	`87`	`}`
`90`	`88`	`}`
`91`	`89`	`Constraints = std::move(NewSystem);`