[WinEH] Make llvm.eh.actions use frameescape indices for catch params

This makes it possible to use the same representation of llvm.eh.actions
in outlined handlers as we use in the parent function because i32's are
just constants that can be copied freely between functions.

I had to add a sentinel alloca to the list of child allocas so that we
don't try to sink the catch object into the handler. Normally, one would
use nullptr for this kind of thing, but TinyPtrVector doesn't support
null elements. More than that, it's elements have to have a suitable
alignment. Therefore, I settled on this for my sentinel:

  AllocaInst *getCatchObjectSentinel() {
    return static_cast<AllocaInst *>(nullptr) + 1;
  }

llvm-svn: 233947
diff --git a/llvm/test/CodeGen/WinEH/cppeh-catch-all.ll b/llvm/test/CodeGen/WinEH/cppeh-catch-all.ll
index 5a51fe6..43e4d0c 100644
--- a/llvm/test/CodeGen/WinEH/cppeh-catch-all.ll
+++ b/llvm/test/CodeGen/WinEH/cppeh-catch-all.ll
@@ -38,7 +38,7 @@
 ; CHECK: [[LPAD_LABEL]]:{{[ ]+}}; preds = %entry
 ; CHECK:   landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
 ; CHECK-NEXT:           catch i8* null
-; CHECK-NEXT:   [[RECOVER:\%.+]] = call i8* (...)* @llvm.eh.actions(i32 1, i8* null, i8* null, i8* (i8*, i8*)* @_Z4testv.catch)
+; CHECK-NEXT:   [[RECOVER:\%.+]] = call i8* (...)* @llvm.eh.actions(i32 1, i8* null, i32 -1, i8* (i8*, i8*)* @_Z4testv.catch)
 ; CHECK-NEXT:   indirectbr i8* [[RECOVER]], [label %try.cont]
 
 lpad:                                             ; preds = %entry
diff --git a/llvm/test/CodeGen/WinEH/cppeh-catch-scalar.ll b/llvm/test/CodeGen/WinEH/cppeh-catch-scalar.ll
index adb048a9..279c4bf 100644
--- a/llvm/test/CodeGen/WinEH/cppeh-catch-scalar.ll
+++ b/llvm/test/CodeGen/WinEH/cppeh-catch-scalar.ll
@@ -43,7 +43,7 @@
 ; CHECK: [[LPAD_LABEL]]:{{[ ]+}}; preds = %entry
 ; CHECK:   landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
 ; CHECK-NEXT:           catch i8* bitcast (i8** @_ZTIi to i8*)
-; CHECK-NEXT:   [[RECOVER:\%.+]] = call i8* (...)* @llvm.eh.actions(i32 1, i8* bitcast (i8** @_ZTIi to i8*), i32* %i, i8* (i8*, i8*)* @_Z4testv.catch)
+; CHECK-NEXT:   [[RECOVER:\%.+]] = call i8* (...)* @llvm.eh.actions(i32 1, i8* bitcast (i8** @_ZTIi to i8*), i32 0, i8* (i8*, i8*)* @_Z4testv.catch)
 ; CHECK-NEXT:   indirectbr i8* [[RECOVER]], [label %try.cont]
 
 lpad:                                             ; preds = %entry
diff --git a/llvm/test/CodeGen/WinEH/cppeh-catch-unwind.ll b/llvm/test/CodeGen/WinEH/cppeh-catch-unwind.ll
index 33d8551..6261285 100644
--- a/llvm/test/CodeGen/WinEH/cppeh-catch-unwind.ll
+++ b/llvm/test/CodeGen/WinEH/cppeh-catch-unwind.ll
@@ -71,7 +71,7 @@
 ; CHECK: [[LPAD_LABEL]]:{{[ ]+}}; preds = %entry
 ; CHECK:   [[LPAD_VAL:\%.+]] = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
 ; CHECK-NEXT:           catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*)
-; CHECK-NEXT:   [[RECOVER:\%.+]] = call i8* (...)* @llvm.eh.actions(i32 1, i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*), i32* [[TMP1]], i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch")
+; CHECK-NEXT:   [[RECOVER:\%.+]] = call i8* (...)* @llvm.eh.actions(i32 1, i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*), i32 0, i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch")
 ; CHECK-NEXT:   indirectbr i8* [[RECOVER]], [label %try.cont15]
 
 lpad:                                             ; preds = %entry
@@ -85,7 +85,7 @@
 ; CHECK:   [[LPAD1_VAL:\%.+]] = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
 ; CHECK-NEXT:           cleanup
 ; CHECK-NEXT:           catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*)
-; CHECK-NEXT:   [[RECOVER1:\%.+]] = call i8* (...)* @llvm.eh.actions(i32 0, void (i8*, i8*)* @"\01?test@@YAXXZ.cleanup", i32 1, i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*), i32* [[TMP1]], i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch")
+; CHECK-NEXT:   [[RECOVER1:\%.+]] = call i8* (...)* @llvm.eh.actions(i32 0, void (i8*, i8*)* @"\01?test@@YAXXZ.cleanup", i32 1, i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*), i32 0, i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch")
 ; CHECK-NEXT:   indirectbr i8* [[RECOVER1]], [label %try.cont15]
 
 lpad1:                                            ; preds = %invoke.cont
@@ -100,7 +100,7 @@
 ; CHECK:   [[LPAD3_VAL:\%.+]] = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
 ; CHECK-NEXT:           cleanup
 ; CHECK-NEXT:           catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*)
-; CHECK-NEXT:   [[RECOVER3:\%.+]] = call i8* (...)* @llvm.eh.actions(i32 1, i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*), i32* [[TMP0]], i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch1", i32 0, void (i8*, i8*)* @"\01?test@@YAXXZ.cleanup")
+; CHECK-NEXT:   [[RECOVER3:\%.+]] = call i8* (...)* @llvm.eh.actions(i32 1, i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*), i32 2, i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch1", i32 0, void (i8*, i8*)* @"\01?test@@YAXXZ.cleanup")
 ; CHECK-NEXT:   indirectbr i8* [[RECOVER3]], [label %try.cont]
 
 lpad3:                                            ; preds = %invoke.cont2
diff --git a/llvm/test/CodeGen/WinEH/cppeh-frame-vars.ll b/llvm/test/CodeGen/WinEH/cppeh-frame-vars.ll
index cb97e6e..1e144bb 100644
--- a/llvm/test/CodeGen/WinEH/cppeh-frame-vars.ll
+++ b/llvm/test/CodeGen/WinEH/cppeh-frame-vars.ll
@@ -101,7 +101,7 @@
 ; CHECK: [[LPAD_LABEL]]:{{[ ]+}}; preds = %for.body
 ; CHECK:   landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
 ; CHECK-NEXT:           catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*)
-; CHECK-NEXT:   [[RECOVER:\%.+]] = call i8* (...)* @llvm.eh.actions(i32 1, i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*), i32* %e, i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch")
+; CHECK-NEXT:   [[RECOVER:\%.+]] = call i8* (...)* @llvm.eh.actions(i32 1, i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*), i32 0, i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch")
 ; CHECK-NEXT:   indirectbr i8* [[RECOVER]], [label %try.cont]
 
 lpad:                                             ; preds = %for.body
diff --git a/llvm/test/CodeGen/WinEH/cppeh-inalloca.ll b/llvm/test/CodeGen/WinEH/cppeh-inalloca.ll
index f6908fe..2fbbc6f3 100644
--- a/llvm/test/CodeGen/WinEH/cppeh-inalloca.ll
+++ b/llvm/test/CodeGen/WinEH/cppeh-inalloca.ll
@@ -65,7 +65,7 @@
 ; CHECK:   landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
 ; CHECK-NEXT:           cleanup
 ; CHECK-NEXT:           catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*)
-; CHECK-NEXT:   [[RECOVER:\%recover.*]] = call i8* (...)* @llvm.eh.actions(i32 1, i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*), i32* %e, i8* (i8*, i8*)* @"\01?test@@YAHUA@@@Z.catch", i32 0, void (i8*, i8*)* @"\01?test@@YAHUA@@@Z.cleanup")
+; CHECK-NEXT:   [[RECOVER:\%recover.*]] = call i8* (...)* @llvm.eh.actions(i32 1, i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*), i32 0, i8* (i8*, i8*)* @"\01?test@@YAHUA@@@Z.catch", i32 0, void (i8*, i8*)* @"\01?test@@YAHUA@@@Z.cleanup")
 ; CHECK-NEXT:   indirectbr i8* [[RECOVER]], [label %cleanup]
 
 lpad:                                             ; preds = %entry
diff --git a/llvm/test/CodeGen/WinEH/cppeh-multi-catch.ll b/llvm/test/CodeGen/WinEH/cppeh-multi-catch.ll
index 6f7391a..29b342a 100644
--- a/llvm/test/CodeGen/WinEH/cppeh-multi-catch.ll
+++ b/llvm/test/CodeGen/WinEH/cppeh-multi-catch.ll
@@ -78,7 +78,11 @@
 ; CHECK-NEXT:           catch %eh.HandlerMapEntry* @llvm.eh.handlermapentry._J
 ; CHECK-NEXT:           catch %eh.HandlerMapEntry* @"llvm.eh.handlermapentry.reference.?AVSomeClass@@"
 ; CHECK-NEXT:           catch i8* null
-; CHECK-NEXT:   [[RECOVER:\%.+]] = call i8* (...)* @llvm.eh.actions(i32 1, i8* bitcast (%eh.HandlerMapEntry* @llvm.eh.handlermapentry.H to i8*), i32* %i, i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch", i32 1, i8* bitcast (%eh.HandlerMapEntry* @llvm.eh.handlermapentry._J to i8*), i64* %ll, i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch1", i32 1, i8* bitcast (%eh.HandlerMapEntry* @"llvm.eh.handlermapentry.reference.?AVSomeClass@@" to i8*), %class.SomeClass** %obj, i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch2", i32 1, i8* null, i8* null, i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch3")
+; CHECK-NEXT:   [[RECOVER:\%.+]] = call i8* (...)* @llvm.eh.actions(
+; CHECK-SAME:	     i32 1, i8* bitcast (%eh.HandlerMapEntry* @llvm.eh.handlermapentry.H to i8*), i32 0, i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch",
+; CHECK-SAME:        i32 1, i8* bitcast (%eh.HandlerMapEntry* @llvm.eh.handlermapentry._J to i8*), i32 1, i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch1",
+; CHECK-SAME:        i32 1, i8* bitcast (%eh.HandlerMapEntry* @"llvm.eh.handlermapentry.reference.?AVSomeClass@@" to i8*), i32 2, i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch2",
+; CHECK-SAME:        i32 1, i8* null, i32 -1, i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch3")
 ; CHECK-NEXT:   indirectbr i8* [[RECOVER]], [label %catch14.split, label %catch10.split, label %catch6.split, label %catch.split]
 
 lpad:                                             ; preds = %entry
diff --git a/llvm/test/CodeGen/WinEH/cppeh-nested-2.ll b/llvm/test/CodeGen/WinEH/cppeh-nested-2.ll
index 6d5416d..f50100c 100644
--- a/llvm/test/CodeGen/WinEH/cppeh-nested-2.ll
+++ b/llvm/test/CodeGen/WinEH/cppeh-nested-2.ll
@@ -93,7 +93,7 @@
 ; CHECK: [[LPAD_LABEL]]:
 ; CHECK:   landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
 ; CHECK-NEXT:           catch i8* bitcast (i8** @_ZTIf to i8*)
-; CHECK-NEXT:   [[RECOVER:\%.+]] = call i8* (...)* @llvm.eh.actions(i32 1, i8* bitcast (i8** @_ZTIf to i8*), float* %f, i8* (i8*, i8*)* @_Z4testv.catch)
+; CHECK-NEXT:   [[RECOVER:\%.+]] = call i8* (...)* @llvm.eh.actions(i32 1, i8* bitcast (i8** @_ZTIf to i8*), i32 0, i8* (i8*, i8*)* @_Z4testv.catch)
 ; CHECK-NEXT:   indirectbr i8* [[RECOVER]], [label %try.cont19]
 
 lpad:                                             ; preds = %try.cont, %entry
@@ -111,9 +111,9 @@
 ; CHECK-NEXT:           catch i8* bitcast (i8** @_ZTIi to i8*)
 ; CHECK-NEXT:           catch i8* bitcast (i8** @_ZTIf to i8*)
 ; CHECK-NEXT:   [[RECOVER1:\%.+]] = call i8* (...)* @llvm.eh.actions(
-; CHECK-SAME:       i32 1, i8* bitcast (i8** @_ZTIi to i8*), i32* %i, i8* (i8*, i8*)* @_Z4testv.catch1,
+; CHECK-SAME:       i32 1, i8* bitcast (i8** @_ZTIi to i8*), i32 1, i8* (i8*, i8*)* @_Z4testv.catch1,
 ; CHECK-SAME:       i32 0, void (i8*, i8*)* @_Z4testv.cleanup,
-; CHECK-SAME:       i32 1, i8* bitcast (i8** @_ZTIf to i8*), float* %f, i8* (i8*, i8*)* @_Z4testv.catch)
+; CHECK-SAME:       i32 1, i8* bitcast (i8** @_ZTIf to i8*), i32 0, i8* (i8*, i8*)* @_Z4testv.catch)
 ; CHECK-NEXT:   indirectbr i8* [[RECOVER1]], [label %try.cont, label %try.cont19]
 
 lpad1:                                            ; preds = %invoke.cont4, %invoke.cont
@@ -134,9 +134,9 @@
 ; CHECK-NEXT:           catch i8* bitcast (i8** @_ZTIf to i8*)
 ; CHECK-NEXT:   [[RECOVER3:\%.+]] = call i8* (...)* @llvm.eh.actions(
 ; CHECK-SAME:       i32 0, void (i8*, i8*)* @_Z4testv.cleanup2,
-; CHECK-SAME:       i32 1, i8* bitcast (i8** @_ZTIi to i8*), i32* %i, i8* (i8*, i8*)* @_Z4testv.catch1,
+; CHECK-SAME:       i32 1, i8* bitcast (i8** @_ZTIi to i8*), i32 1, i8* (i8*, i8*)* @_Z4testv.catch1,
 ; CHECK-SAME:       i32 0, void (i8*, i8*)* @_Z4testv.cleanup,
-; CHECK-SAME:       i32 1, i8* bitcast (i8** @_ZTIf to i8*), float* %f, i8* (i8*, i8*)* @_Z4testv.catch)
+; CHECK-SAME:       i32 1, i8* bitcast (i8** @_ZTIf to i8*), i32 0, i8* (i8*, i8*)* @_Z4testv.catch)
 ; CHECK-NEXT:   indirectbr i8* [[RECOVER3]], [label %try.cont, label %try.cont19]
 
 lpad3:                                            ; preds = %invoke.cont2
diff --git a/llvm/test/CodeGen/WinEH/cppeh-nonalloca-frame-values.ll b/llvm/test/CodeGen/WinEH/cppeh-nonalloca-frame-values.ll
index 68bb134..2c629d8 100644
--- a/llvm/test/CodeGen/WinEH/cppeh-nonalloca-frame-values.ll
+++ b/llvm/test/CodeGen/WinEH/cppeh-nonalloca-frame-values.ll
@@ -114,7 +114,7 @@
 ; CHECK: [[LPAD_LABEL:lpad[0-9]*]]:{{[ ]+}}; preds = %for.body
 ; CHECK:   landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
 ; CHECK-NEXT:           catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*)
-; CHECK-NEXT:   [[RECOVER:\%.+]] = call i8* (...)* @llvm.eh.actions(i32 1, i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*), i32* %e, i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch")
+; CHECK-NEXT:   [[RECOVER:\%.+]] = call i8* (...)* @llvm.eh.actions(i32 1, i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*), i32 0, i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch")
 ; CHECK-NEXT:   indirectbr i8* [[RECOVER]], [label %try.cont]
 
 lpad:                                             ; preds = %for.body
diff --git a/llvm/test/CodeGen/WinEH/seh-simple.ll b/llvm/test/CodeGen/WinEH/seh-simple.ll
index 26b3f83..8bfa18f 100644
--- a/llvm/test/CodeGen/WinEH/seh-simple.ll
+++ b/llvm/test/CodeGen/WinEH/seh-simple.ll
@@ -39,7 +39,7 @@
 ; CHECK-LABEL: define i32 @simple_except_store()
 ; CHECK: landingpad { i8*, i32 }
 ; CHECK-NEXT: catch i32 ()* @filt
-; CHECK-NEXT: call i8* (...)* @llvm.eh.actions(i32 1, i8* bitcast (i32 ()* @filt to i8*), i8* null, i8* blockaddress(@simple_except_store, %__except))
+; CHECK-NEXT: call i8* (...)* @llvm.eh.actions(i32 1, i8* bitcast (i32 ()* @filt to i8*), i32 -1, i8* blockaddress(@simple_except_store, %__except))
 ; CHECK-NEXT: indirectbr {{.*}} [label %__except]
 
 define i32 @catch_all() {
@@ -63,7 +63,7 @@
 ; CHECK-LABEL: define i32 @catch_all()
 ; CHECK: landingpad { i8*, i32 }
 ; CHECK-NEXT: catch i8* null
-; CHECK-NEXT: call i8* (...)* @llvm.eh.actions(i32 1, i8* null, i8* null, i8* blockaddress(@catch_all, %catch.all))
+; CHECK-NEXT: call i8* (...)* @llvm.eh.actions(i32 1, i8* null, i32 -1, i8* blockaddress(@catch_all, %catch.all))
 ; CHECK-NEXT: indirectbr {{.*}} [label %catch.all]
 ;
 ; CHECK: catch.all:
@@ -94,7 +94,7 @@
 ; CHECK-LABEL: define i32 @except_phi()
 ; CHECK: landingpad { i8*, i32 }
 ; CHECK-NEXT: catch i32 ()* @filt
-; CHECK-NEXT: call i8* (...)* @llvm.eh.actions(i32 1, i8* bitcast (i32 ()* @filt to i8*), i8* null, i8* blockaddress(@except_phi, %return))
+; CHECK-NEXT: call i8* (...)* @llvm.eh.actions(i32 1, i8* bitcast (i32 ()* @filt to i8*), i32 -1, i8* blockaddress(@except_phi, %return))
 ; CHECK-NEXT: indirectbr {{.*}} [label %return]
 ;
 ; CHECK: return:
@@ -130,7 +130,7 @@
 ; CHECK-NEXT: catch i32 ()* @filt
 ; CHECK-NEXT: call i8* (...)* @llvm.eh.actions(
 ; CHECK: i32 0, void (i8*, i8*)* @cleanup_and_except.cleanup,
-; CHECK: i32 1, i8* bitcast (i32 ()* @filt to i8*), i8* null, i8* blockaddress(@cleanup_and_except, %return))
+; CHECK: i32 1, i8* bitcast (i32 ()* @filt to i8*), i32 -1, i8* blockaddress(@cleanup_and_except, %return))
 ; CHECK-NEXT: indirectbr {{.*}} [label %return]
 ;
 ; CHECK: return: