[llvm] [X86][DAGCombiner][SelectionDAG] - Fold Zext Build Vector to Bitcast of widen Build Vector (PR #135010)

[Phoebe Wang via llvm-commits]

================
@@ -274,7 +274,7 @@ define i64 @PR55050() {
 ; X86-NEXT:  # %bb.1: # %if
 ; X86-NEXT:    xorl %eax, %eax
 ; X86-NEXT:  .LBB15_2: # %exit
-; X86-NEXT:    movl    %eax, %edx
+; X86-NEXT:    movl %eax, %edx
----------------
phoebewang wrote:

ditto.

https://github.com/llvm/llvm-project/pull/135010