[Transforms] Preserve metadata when converting invoke to call.
The `changeToCall` function did not preserve the invoke's metadata.
Currently, there is probably no metadata that depends on being applied
on a CallInst or InvokeInst. Therefore we can replace the instruction's
metadata.
This fixes http://llvm.org/PR39994
Suggested-by: Moritz Kreutzer <moritz.kreutzer@siemens.com>
Differential Revision: https://reviews.llvm.org/D55666
diff --git a/llvm/lib/Transforms/Utils/Local.cpp b/llvm/lib/Transforms/Utils/Local.cpp
index 2b7d7ad..fa0151d 100644
--- a/llvm/lib/Transforms/Utils/Local.cpp
+++ b/llvm/lib/Transforms/Utils/Local.cpp
@@ -1970,6 +1970,7 @@
NewCall->setCallingConv(II->getCallingConv());
NewCall->setAttributes(II->getAttributes());
NewCall->setDebugLoc(II->getDebugLoc());
+ NewCall->copyMetadata(*II);
II->replaceAllUsesWith(NewCall);
// Follow the call by a branch to the normal destination.
diff --git a/llvm/test/Transforms/PruneEH/looptest.ll b/llvm/test/Transforms/PruneEH/looptest.ll
new file mode 100644
index 0000000..2729ec9
--- /dev/null
+++ b/llvm/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}
