[llvm] [Attributor][FIX] Mark "may" accesses through call sites as such (PR #107439)

[Shilei Tian via llvm-commits]

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@@ -101,10 +101,10 @@ define i32 @caller2(i1 %Q) {
 ; CGSCC: Function Attrs: mustprogress nofree nosync nounwind willreturn memory(none)
 ; CGSCC-LABEL: define {{[^@]+}}@caller2
 ; CGSCC-SAME: (i1 noundef [[Q:%.*]]) #[[ATTR1]] {
-; CGSCC-NEXT:    [[X:%.*]] = call [[TMP0:%.*]] [[FOO:@[a-zA-Z0-9_$\"\\.-]*[a-zA-Z_$\"\\.-][a-zA-Z0-9_$\"\\.-]*]](i1 noundef [[Q]]) #[[ATTR2]]
+; CGSCC-NEXT:    [[X:%.*]] = call [[TMP0:%.*]] @[[FOO]](i1 noundef [[Q]]) #[[ATTR2]]
 ; CGSCC-NEXT:    [[A:%.*]] = extractvalue [[TMP0]] [[X]], 0
 ; CGSCC-NEXT:    [[B:%.*]] = extractvalue [[TMP0]] [[X]], 1
-; CGSCC-NEXT:    [[Y:%.*]] = call [[TMP0]] [[BAR:@[a-zA-Z0-9_$\"\\.-]*[a-zA-Z_$\"\\.-][a-zA-Z0-9_$\"\\.-]*]](i1 noundef [[Q]]) #[[ATTR2]]
+; CGSCC-NEXT:    [[Y:%.*]] = call [[TMP0]] @[[BAR:[a-zA-Z0-9_$\"\\.-]*[a-zA-Z_$\"\\.-][a-zA-Z0-9_$\"\\.-]*]](i1 noundef [[Q]]) #[[ATTR2]]
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shiltian wrote:

pre-commit this?

https://github.com/llvm/llvm-project/pull/107439