Fix an msan warning for use of an uninitialized variable.

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PiperOrigin-RevId: 250939301

diff --git a/mlir/lib/Quantizer/Support/UniformSolvers.cpp b/mlir/lib/Quantizer/Support/UniformSolvers.cpp
index 6a79c7a..b4c14ca 100644 (file)
--- a/mlir/lib/Quantizer/Support/UniformSolvers.cpp
+++ b/mlir/lib/Quantizer/Support/UniformSolvers.cpp
@@ -74,7 +74,7 @@ bool UniformParamsFromMinMaxSolver::compute() {
   double deltaMax =
       ((numLevelsDouble * deltaInit) + 2 * deltaInit) / numLevelsDouble;
   double deltaMid;
-  double prevDeltaMid;
+  double prevDeltaMid = 0.0;
   for (stepCount = 0; stepCount < 60; ++stepCount) {
     deltaMid = (deltaInit + deltaMax) / 2.0;
     auto fInit =