Merge pull request #3186 from apple/eng/PR-82103194

Add test update for a11d9a1 which disables fallbacks.

Author: francisvm

llvm/test/CodeGen/AArch64/arm64-ldxr-stxr.ll

@@ -1,5 +1,5 @@
 ; RUN: llc < %s -mtriple=arm64-linux-gnu | FileCheck %s
-; RUN: llc < %s -global-isel -global-isel-abort=2 -pass-remarks-missed=gisel* -mtriple=arm64-linux-gnu 2>&1 | FileCheck %s --check-prefixes=GISEL,FALLBACK
+; RUN: llc < %s -global-isel -global-isel-abort=1 -pass-remarks-missed=gisel* -mtriple=arm64-linux-gnu 2>&1 | FileCheck %s --check-prefixes=GISEL,FALLBACK
 
 %0 = type { i64, i64 }