From 877a1015974496beacfc3f9ec5809cec5b1368f5 Mon Sep 17 00:00:00 2001
From: Sanjoy Das <sanjoy@playingwithpointers.com>
Date: Fri, 29 Jan 2016 00:13:26 +0000
Subject: [PATCH] [RS4GC] Port three tests to the deopt bundles directory

two-invokes-one-landingpad.ll was only moved (and not "ported"), but
having everything in the `deopt-bundles` directory will make later
changes more obvious.

llvm-svn: 259125
---
 .../deopt-bundles/base-pointers-12.ll              | 20 +++++++++++++
 .../deopt-bundles/base-pointers-13.ll              | 19 +++++++++++++
 .../deopt-bundles/two-invokes-one-landingpad.ll    | 33 ++++++++++++++++++++++
 3 files changed, 72 insertions(+)
 create mode 100644 llvm/test/Transforms/RewriteStatepointsForGC/deopt-bundles/base-pointers-12.ll
 create mode 100644 llvm/test/Transforms/RewriteStatepointsForGC/deopt-bundles/base-pointers-13.ll
 create mode 100644 llvm/test/Transforms/RewriteStatepointsForGC/deopt-bundles/two-invokes-one-landingpad.ll

diff --git a/llvm/test/Transforms/RewriteStatepointsForGC/deopt-bundles/base-pointers-12.ll b/llvm/test/Transforms/RewriteStatepointsForGC/deopt-bundles/base-pointers-12.ll
new file mode 100644
index 0000000..ce477af
--- /dev/null
+++ b/llvm/test/Transforms/RewriteStatepointsForGC/deopt-bundles/base-pointers-12.ll
@@ -0,0 +1,20 @@
+; RUN: opt < %s -rs4gc-use-deopt-bundles -rewrite-statepoints-for-gc -spp-print-base-pointers -S 2>&1 | FileCheck %s
+
+; CHECK: derived %select base @global
+
+@global = external addrspace(1) global i8
+
+define i8 @test(i1 %cond) gc "statepoint-example" {
+  %derived1 = getelementptr i8, i8 addrspace(1)* @global, i64 1
+  %derived2 = getelementptr i8, i8 addrspace(1)* @global, i64 2
+  %select = select i1 %cond, i8 addrspace(1)* %derived1, i8 addrspace(1)* %derived2
+  call void @extern()
+; CHECK-NOT: relocate
+; CHECK: %load = load i8, i8 addrspace(1)* %select
+  %load = load i8, i8 addrspace(1)* %select
+  ret i8 %load
+}
+
+declare void @extern() gc "statepoint-example"
+
+declare token @llvm.experimental.gc.statepoint.p0f_isVoidf(i64, i32, void ()*, i32, i32, ...)
diff --git a/llvm/test/Transforms/RewriteStatepointsForGC/deopt-bundles/base-pointers-13.ll b/llvm/test/Transforms/RewriteStatepointsForGC/deopt-bundles/base-pointers-13.ll
new file mode 100644
index 0000000..aab260a
--- /dev/null
+++ b/llvm/test/Transforms/RewriteStatepointsForGC/deopt-bundles/base-pointers-13.ll
@@ -0,0 +1,19 @@
+; RUN: opt < %s -rs4gc-use-deopt-bundles -rewrite-statepoints-for-gc -spp-print-base-pointers -S 2>&1 | FileCheck %s
+
+; CHECK: derived %derived base @global
+
+@global = external addrspace(1) global i8
+
+define i8 @test(i64 %offset) gc "statepoint-example" {
+  %derived = getelementptr i8, i8 addrspace(1)* @global, i64 %offset
+  call void @extern()
+; CHECK-NOT: relocate
+; CHECK-NOT: remat
+; CHECK: %load = load i8, i8 addrspace(1)* %derived
+  %load = load i8, i8 addrspace(1)* %derived
+  ret i8 %load
+}
+
+declare void @extern() gc "statepoint-example"
+
+declare token @llvm.experimental.gc.statepoint.p0f_isVoidf(i64, i32, void ()*, i32, i32, ...)
diff --git a/llvm/test/Transforms/RewriteStatepointsForGC/deopt-bundles/two-invokes-one-landingpad.ll b/llvm/test/Transforms/RewriteStatepointsForGC/deopt-bundles/two-invokes-one-landingpad.ll
new file mode 100644
index 0000000..3d49b92
--- /dev/null
+++ b/llvm/test/Transforms/RewriteStatepointsForGC/deopt-bundles/two-invokes-one-landingpad.ll
@@ -0,0 +1,33 @@
+; RUN: opt < %s -rewrite-statepoints-for-gc -rs4gc-use-deopt-bundles -S | FileCheck %s
+
+declare void @some_call(i64 addrspace(1)*)
+
+declare i32 @dummy_personality_function()
+
+define i64 addrspace(1)* @test(i64 addrspace(1)* %obj, i64 addrspace(1)* %obj1)
+  gc "statepoint-example"
+  personality i32 ()* @dummy_personality_function {
+entry:
+  invoke void @some_call(i64 addrspace(1)* %obj) [ "deopt"() ]
+          to label %second_invoke unwind label %exceptional_return
+
+second_invoke:                                    ; preds = %entry
+  invoke void @some_call(i64 addrspace(1)* %obj) [ "deopt"() ]
+          to label %normal_return unwind label %exceptional_return
+
+normal_return:                                    ; preds = %second_invoke
+  ret i64 addrspace(1)* %obj
+
+; CHECK: exceptional_return1:
+; CHECK-NEXT: %lpad2 = landingpad token
+
+; CHECK: exceptional_return.split-lp:
+; CHECK-NEXT: %lpad.split-lp = landingpad token
+
+; CHECK: exceptional_return:
+; CHECK-NOT: phi token
+
+exceptional_return:                               ; preds = %second_invoke, %entry
+  %lpad = landingpad token cleanup
+  ret i64 addrspace(1)* %obj1
+}
-- 
2.7.4