From 772fe17a6d07304ae2e6b3052bbb24ebb751f0f3 Mon Sep 17 00:00:00 2001
From: Bill Wendling <isanbard@gmail.com>
Date: Wed, 27 Jul 2011 20:18:04 +0000
Subject: Merge the contents from exception-handling-rewrite to the mainline.

This adds the new instructions 'landingpad' and 'resume'.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136253 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/Feature/exceptionhandling.ll | 54 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 test/Feature/exceptionhandling.ll

(limited to 'test/Feature')

diff --git a/test/Feature/exceptionhandling.ll b/test/Feature/exceptionhandling.ll
new file mode 100644
index 0000000..aa30f30
--- /dev/null
+++ b/test/Feature/exceptionhandling.ll
@@ -0,0 +1,54 @@
+; RUN: llvm-as < %s | llvm-dis > %t1.ll
+; RUN: llvm-as %t1.ll -o - | llvm-dis > %t2.ll
+; RUN: diff %t1.ll %t2.ll
+
+@_ZTIc = external constant i8*
+@_ZTId = external constant i8*
+@_ZTIPKc = external constant i8*
+@.str = private unnamed_addr constant [16 x i8] c"caught char %c\0A\00", align 1
+
+define void @_Z3barv() uwtable optsize alwaysinline ssp {
+entry:
+  invoke void @_Z3quxv() optsize
+          to label %try.cont unwind label %lpad
+
+invoke.cont4:                                     ; preds = %lpad
+  %eh.obj = extractvalue {i8*, i32} %exn, 0
+  %tmp0 = tail call i8* @__cxa_begin_catch(i8* %eh.obj) nounwind
+  %exn.scalar = load i8* %tmp0, align 1
+  %conv = sext i8 %exn.scalar to i32
+  %call = tail call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([16 x i8]* @.str, i64 0, i64 0), i32 %conv) optsize
+  tail call void @__cxa_end_catch() nounwind
+  br label %try.cont
+
+try.cont:                                         ; preds = %entry, %invoke.cont4
+  ret void
+
+lpad:                                             ; preds = %entry
+  %exn = landingpad {i8*, i32} personality i32 (...)* @__gxx_personality_v0
+            cleanup
+            catch i8** @_ZTIc
+            filter i8** @_ZTIPKc
+            catch i8** @_ZTId
+  %tmp1 = extractvalue {i8*, i32} %exn, 1
+  %tmp2 = tail call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIc to i8*)) nounwind
+  %tmp3 = icmp eq i32 %tmp1, %tmp2
+  br i1 %tmp3, label %invoke.cont4, label %eh.resume
+
+eh.resume:
+  resume { i8*, i32 } %exn
+}
+
+declare void @_Z3quxv() optsize
+
+declare i32 @__gxx_personality_v0(...)
+
+declare i32 @llvm.eh.typeid.for(i8*) nounwind
+
+declare void @llvm.eh.resume(i8*, i32)
+
+declare i8* @__cxa_begin_catch(i8*)
+
+declare i32 @printf(i8* nocapture, ...) nounwind optsize
+
+declare void @__cxa_end_catch()
-- 
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