[RS4GC] Clamp UseDeoptBundles to true and update tests

The full diff for the test directory may be hard to read because of the
filename clash; so here's all that happened as far as the tests are
concerned:

```
cd test/Transforms/RewriteStatepointsForGC
git rm *ll
git mv deopt-bundles/* ./
rmdir deopt-bundles
find . -name '*.ll' | xargs gsed -i 's/-rs4gc-use-deopt-bundles //g'
```

llvm-svn: 259129
diff --git a/llvm/test/Transforms/RewriteStatepointsForGC/preprocess.ll b/llvm/test/Transforms/RewriteStatepointsForGC/preprocess.ll
index e165749..df42eb1 100644
--- a/llvm/test/Transforms/RewriteStatepointsForGC/preprocess.ll
+++ b/llvm/test/Transforms/RewriteStatepointsForGC/preprocess.ll
@@ -1,65 +1,62 @@
 ; RUN: opt -rewrite-statepoints-for-gc -S < %s | FileCheck %s
 
-declare void @consume(...)
-
 ; Test to make sure we destroy LCSSA's single entry phi nodes before
 ; running liveness
+
+declare void @consume(...) "gc-leaf-function"
+
 define void @test6(i64 addrspace(1)* %obj) gc "statepoint-example" {
 ; CHECK-LABEL: @test6
 entry:
   br label %next
 
-next:
+next:                                             ; preds = %entry
 ; CHECK-LABEL: next:
 ; CHECK-NEXT: gc.statepoint
 ; CHECK-NEXT: gc.relocate
 ; CHECK-NEXT: bitcast
 ; CHECK-NEXT: @consume(i64 addrspace(1)* %obj.relocated.casted)
 ; CHECK-NEXT: @consume(i64 addrspace(1)* %obj.relocated.casted)
+; Need to delete unreachable gc.statepoint call
   %obj2 = phi i64 addrspace(1)* [ %obj, %entry ]
-  call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* @foo, i32 0, i32 0, i32 0, i32 0)
+  call void @foo() [ "deopt"() ]
   call void (...) @consume(i64 addrspace(1)* %obj2)
   call void (...) @consume(i64 addrspace(1)* %obj)
   ret void
 }
 
-declare void @some_call(i64 addrspace(1)*)
-
-; Need to delete unreachable gc.statepoint call
 define void @test7() gc "statepoint-example" {
 ; CHECK-LABEL: test7
 ; CHECK-NOT: gc.statepoint
+; Need to delete unreachable gc.statepoint invoke - tested seperately given
+; a correct implementation could only remove the instructions, not the block
   ret void
 
-unreached:
-  %obj = phi i64 addrspace(1)* [null, %unreached]
-  call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* @foo, i32 0, i32 0, i32 0, i32 0)
+unreached:                                        ; preds = %unreached
+  %obj = phi i64 addrspace(1)* [ null, %unreached ]
+  call void @foo() [ "deopt"() ]
   call void (...) @consume(i64 addrspace(1)* %obj)
   br label %unreached
 }
 
-; Need to delete unreachable gc.statepoint invoke - tested seperately given
-; a correct implementation could only remove the instructions, not the block
 define void @test8() gc "statepoint-example" personality i32 ()* undef {
 ; CHECK-LABEL: test8
 ; CHECK-NOT: gc.statepoint
+; Bound the last check-not
   ret void
 
-unreached:
-  invoke token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* @foo, i32 0, i32 0, i32 0, i32 0)
+unreached:                                        ; No predecessors!
+  invoke void @foo() [ "deopt"() ]
+; CHECK-LABEL: @foo
           to label %normal_return unwind label %exceptional_return
 
-normal_return:                                    ; preds = %entry
+normal_return:                                    ; preds = %unreached
   ret void
 
-exceptional_return:                               ; preds = %entry
+exceptional_return:                               ; preds = %unreached
   %landing_pad4 = landingpad { i8*, i32 }
           cleanup
   ret void
 }
 
 declare void @foo()
-; Bound the last check-not
-; CHECK-LABEL: @foo
-
-declare token @llvm.experimental.gc.statepoint.p0f_isVoidf(i64, i32, void ()*, i32, i32, ...)