[llvm] Fix assertion failure in PR98681 (PR #98860)

[Yingwei Zheng via llvm-commits]

================
@@ -4,7 +4,7 @@
 declare double @atan2(double, double) #0
 define double @f_atan2() {
 ; CHECK-LABEL: @f_atan2(
-; CHECK-NEXT:    ret double 0x3FDDAC6{{.+}}
+; CHECK-NEXT:    ret double 0x3FDDAC670561BB4F
----------------
dtcxzyw wrote:

```suggestion
; CHECK-NEXT:    ret double 0x3FDDAC6{{.+}}
```


https://github.com/llvm/llvm-project/pull/98860