Integrate LLVM at llvm/llvm-project@e86910337f98

Updates LLVM usage to match
[e86910337f98](llvm/llvm-project@e86910337f98)

PiperOrigin-RevId: 707514897

Author: metaflow

third_party/llvm/generated.patch

@@ -1 +1,38 @@
 Auto generated patch. Do not edit or delete it, even if empty.
+diff -ruN --strip-trailing-cr a/llvm/lib/CodeGen/MLRegAllocEvictAdvisor.cpp b/llvm/lib/CodeGen/MLRegAllocEvictAdvisor.cpp
+--- a/llvm/lib/CodeGen/MLRegAllocEvictAdvisor.cpp
++++ b/llvm/lib/CodeGen/MLRegAllocEvictAdvisor.cpp
+@@ -654,8 +654,10 @@
+       // There is a potential that the model could be adversarial and
+       // continually evict live ranges over and over again, leading to a
+       // large amount of compile time being spent in regalloc. If we hit the
+-      // threshold, prevent the range from being evicted.
+-      if (IntfCascade >= MaxCascade)
++      // threshold, prevent the range from being evicted. We still let the
++      // range through if it is urgent as we are required to produce an
++      // eviction if the candidate is not spillable.
++      if (IntfCascade >= MaxCascade && !Urgent)
+         return false;
+ 
+       // Only evict older cascades or live ranges without a cascade.
+diff -ruN --strip-trailing-cr a/llvm/test/CodeGen/NVPTX/nvcl-param-align.ll b/llvm/test/CodeGen/NVPTX/nvcl-param-align.ll
+--- a/llvm/test/CodeGen/NVPTX/nvcl-param-align.ll
++++ b/llvm/test/CodeGen/NVPTX/nvcl-param-align.ll
+@@ -1,5 +1,5 @@
+-; RUN: llc < %s -mtriple=nvptx64 -mcpu=sm_20 | FileCheck %s
+-; RUN: %if ptxas %{ llc < %s -mtriple=nvptx64 -mcpu=sm_20 | %ptxas-verify %}
++; RUN: llc < %s -mtriple=nvptx64-nvidia-nvcl -mcpu=sm_20 | FileCheck %s
++; RUN: %if ptxas %{ llc < %s -mtriple=nvptx64-nvidia-nvcl -mcpu=sm_20 | %ptxas-verify %}
+ 
+ target triple = "nvptx-unknown-nvcl"
+ 
+diff -ruN --strip-trailing-cr a/llvm/test/CodeGen/NVPTX/surf-write.ll b/llvm/test/CodeGen/NVPTX/surf-write.ll
+--- a/llvm/test/CodeGen/NVPTX/surf-write.ll
++++ b/llvm/test/CodeGen/NVPTX/surf-write.ll
+@@ -1,5 +1,5 @@
+ ; RUN: llc < %s -mcpu=sm_20 -verify-machineinstrs | FileCheck %s
+-; RUN: %if ptxas %{ llc < %s -mcpu=sm_20 -verify-machineinstrs | %ptxas-verify %}
++; RUN: %if ptxas %{ llc < %s -mcpu=sm_20 -mtriple=nvptx64-nvcl -verify-machineinstrs | %ptxas-verify %}
+ 
+ target triple = "nvptx-unknown-nvcl"
+ 

third_party/llvm/workspace.bzl

@@ -4,8 +4,8 @@ load("//third_party:repo.bzl", "tf_http_archive")
 
 def repo(name):
     """Imports LLVM."""
-    LLVM_COMMIT = "af20aff35ec37ead88903bc3e44f6a81c5c9ca4e"
-    LLVM_SHA256 = "6e31682011d8c483c6a41adf5389eb09ad7db84331ca985d33a5d59efd0388f6"
+    LLVM_COMMIT = "e86910337f98e57f5b9253f7d80d5b916eb1d97e"
+    LLVM_SHA256 = "4ca0eff0ca86ed6f2fdb7682354fdf4c85151d90ac9fb6e55a868e4191359e9f"
 
     tf_http_archive(
         name = name,