[PATCH] D55666: [Transforms] Preserve access metadata.

[Michael Kruse via Phabricator via llvm-commits]

Meinersbur updated this revision to Diff 178121.
Meinersbur added a comment.

Add test case


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D55666/new/

https://reviews.llvm.org/D55666

Files:
  lib/Transforms/Utils/Local.cpp
  test/Transforms/PruneEH/looptest.ll


Index: test/Transforms/PruneEH/looptest.ll
===================================================================
--- /dev/null
+++ test/Transforms/PruneEH/looptest.ll
@@ -0,0 +1,44 @@
+; RUN: opt < %s -prune-eh -S | FileCheck %s
+
+declare void @nounwind() nounwind
+
+define internal void @foo() {
+	call void @nounwind()
+	ret void
+}
+
+; CHECK-LABEL: @caller
+define i32 @caller(i32 %n) personality i32 (...)* @__gxx_personality_v0 {
+entry:
+  br label %for
+
+for:
+  %j = phi i32 [0, %entry], [%j.inc, %inc]
+  %j.cmp = icmp slt i32 %j, %n
+  br i1 %j.cmp, label %body, label %exit, !llvm.loop !0
+  
+body:
+; CHECK: call void @foo(), !llvm.mem.parallel_loop_access !0
+	invoke void @foo( )
+			to label %Normal unwind label %Except, !llvm.mem.parallel_loop_access !0
+  br label %inc
+
+inc:
+  %j.inc = add nuw nsw i32 %j, 1
+  br label %for, !llvm.loop !0
+
+exit:
+  br label %Normal
+
+Normal:
+	ret i32 0
+
+Except:
+        landingpad { i8*, i32 }
+                catch i8* null
+	ret i32 1
+}
+
+declare i32 @__gxx_personality_v0(...)
+
+!0 = distinct !{!0}
Index: lib/Transforms/Utils/Local.cpp
===================================================================
--- lib/Transforms/Utils/Local.cpp
+++ lib/Transforms/Utils/Local.cpp
@@ -1970,6 +1970,7 @@
   NewCall->setCallingConv(II->getCallingConv());
   NewCall->setAttributes(II->getAttributes());
   NewCall->setDebugLoc(II->getDebugLoc());
+  NewCall->copyMetadata(*II, LLVMContext::MD_mem_parallel_loop_access);
   II->replaceAllUsesWith(NewCall);
 
   // Follow the call by a branch to the normal destination.


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