[llvm-branch-commits] Add llvm.protected.field.ptr intrinsic and pre-ISel lowering. (PR #151647)

[Peter Collingbourne via llvm-branch-commits]

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pcc wrote:

I tried it, but it wanted to delete the checks for the deactivation symbols. Do you know if there is a way to prevent this?
```
diff --git a/llvm/test/Transforms/PreISelIntrinsicLowering/protected-field-pointer.ll b/llvm/test/Transforms/PreISelIntrinsicLowering/protected-field-pointer.ll
index cb7e695bfd12..0b17b544e4d8 100644
--- a/llvm/test/Transforms/PreISelIntrinsicLowering/protected-field-pointer.ll
+++ b/llvm/test/Transforms/PreISelIntrinsicLowering/protected-field-pointer.ll
@@ -1,89 +1,143 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
 ; RUN: opt -passes=pre-isel-intrinsic-lowering -S < %s | FileCheck --check-prefixes=CHECK,NOPAUTH %s
 ; RUN: opt -passes=pre-isel-intrinsic-lowering -mattr=+pauth -S < %s | FileCheck --check-prefixes=CHECK,PAUTH %s
 
 target triple = "aarch64-unknown-linux-gnu"
 
-; CHECK: @ds1 = external global i8
 @ds1 = external global i8
-; CHECK: @ds2 = external global i8
 @ds2 = external global i8
-; CHECK: @ds3 = external global i8
 @ds3 = external global i8
-; CHECK: @ds4 = external global i8
 @ds4 = external global i8
-; CHECK: @ds5 = external global i8
 @ds5 = external global i8
-; CHECK: @ds6 = hidden alias i8, inttoptr (i64 3573751839 to ptr)
 @ds6 = external global i8
 
```

https://github.com/llvm/llvm-project/pull/151647