1 files changed, 1 insertions, 4 deletions
diff --git a/llvm/lib/CodeGen/GlobalISel/CombinerHelper.cpp b/llvm/lib/CodeGen/GlobalISel/CombinerHelper.cpp
index 5cf7a33..e53e35d 100644
--- a/llvm/lib/CodeGen/GlobalISel/CombinerHelper.cpp
+++ b/llvm/lib/CodeGen/GlobalISel/CombinerHelper.cpp
@@ -5201,10 +5201,7 @@ MachineInstr *CombinerHelper::buildSDivUsingMul(MachineInstr &MI) {
 
     // Calculate the multiplicative inverse modulo BW.
     // 2^W requires W + 1 bits, so we have to extend and then truncate.
-    unsigned W = Divisor.getBitWidth();
-    APInt Factor = Divisor.zext(W + 1)
-                       .multiplicativeInverse(APInt::getSignedMinValue(W + 1))
-                       .trunc(W);
+    APInt Factor = Divisor.multiplicativeInverse();
     Shifts.push_back(MIB.buildConstant(ScalarShiftAmtTy, Shift).getReg(0));
     Factors.push_back(MIB.buildConstant(ScalarTy, Factor).getReg(0));
     return true;