Rollup merge of #65664 - anp:panic-location, r=eddyb

`std::panic::Location` is a lang_item, add `core::intrinsics::caller_location` (RFC 2091 3/N)

[Tracking issue](https://github.com/rust-lang/rust/issues/47809)
[RFC text](https://github.com/rust-lang/rfcs/blob/master/text/2091-inline-semantic.md)

@eddyb suggested doing this intrinsic implementation ahead of actually implementing the `#[track_caller]` attribute so that there's an easily tested intermediate step between adding the shim and wiring up the attribute.

1 files changed, 0 insertions, 31 deletions

diff --git a/src/librustc_codegen_llvm/builder.rs b/src/librustc_codegen_llvm/builder.rs
index 98be0ae4433..312c41b88b0 100644
--- a/src/librustc_codegen_llvm/builder.rs
+++ b/src/librustc_codegen_llvm/builder.rs
@@ -23,7 +23,6 @@ use std::ffi::CStr;
 use std::ops::{Deref, Range};
 use std::ptr;
 use std::iter::TrustedLen;
-use syntax::symbol::Symbol;
 
 // All Builders must have an llfn associated with them
 #[must_use]
@@ -1067,36 +1066,6 @@ impl StaticBuilderMethods for Builder<'a, 'll, 'tcx> {
         // Forward to the `get_static` method of `CodegenCx`
         self.cx().get_static(def_id)
     }
-
-    fn static_panic_msg(
-        &mut self,
-        msg: Option<Symbol>,
-        filename: Symbol,
-        line: Self::Value,
-        col: Self::Value,
-        kind: &str,
-    ) -> Self::Value {
-        let align = self.tcx.data_layout.aggregate_align.abi
-            .max(self.tcx.data_layout.i32_align.abi)
-            .max(self.tcx.data_layout.pointer_align.abi);
-
-        let filename = self.const_str_slice(filename);
-
-        let with_msg_components;
-        let without_msg_components;
-
-        let components = if let Some(msg) = msg {
-            let msg = self.const_str_slice(msg);
-            with_msg_components = [msg, filename, line, col];
-            &with_msg_components as &[_]
-        } else {
-            without_msg_components = [filename, line, col];
-            &without_msg_components as &[_]
-        };
-
-        let struct_ = self.const_struct(&components, false);
-        self.static_addr_of(struct_, align, Some(kind))
-    }
 }
 
 impl Builder<'a, 'll, 'tcx> {