[llvm] [GlobalISel] Fix ZExt known bits for scalable vectors. (PR #140213)

[David Green via llvm-commits]

================
@@ -0,0 +1,67 @@
+# NOTE: Assertions have been autogenerated by utils/update_givaluetracking_test_checks.py UTC_ARGS: --version 5
+# RUN: llc -mtriple aarch64 -mattr=+sve -passes="print<gisel-value-tracking>" %s -o - 2>&1 | FileCheck %s
----------------
davemgreen wrote:

Thanks - I wanted something like --disable-output but hadn't realized filetype could be null.

https://github.com/llvm/llvm-project/pull/140213