1 ; RUN: opt < %s -licm -S | FileCheck %s
3 target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32"
4 target triple = "i386-pc-windows-msvc18.0.0"
6 define void @test1(i32* %s, i1 %b) personality i32 (...)* @__CxxFrameHandler3 {
10 while.cond: ; preds = %while.body, %entry
11 %0 = call i32 @pure_computation()
12 br i1 %b, label %try.cont, label %while.body
14 while.body: ; preds = %while.cond
15 invoke void @may_throw()
16 to label %while.cond unwind label %catch.dispatch
18 catch.dispatch: ; preds = %while.body
19 %.lcssa1 = phi i32 [ %0, %while.body ]
20 %cs = catchswitch within none [label %catch] unwind to caller
22 catch: ; preds = %catch.dispatch
23 %cp = catchpad within %cs [i8* null, i32 64, i8* null]
24 store i32 %.lcssa1, i32* %s
25 catchret from %cp to label %try.cont
27 try.cont: ; preds = %catch, %while.cond
31 ; CHECK-LABEL: define void @test1(
32 ; CHECK: %[[CALL:.*]] = call i32 @pure_computation()
33 ; CHECK: phi i32 [ %[[CALL]]
35 define void @test2(i32* %s, i1 %b) personality i32 (...)* @__CxxFrameHandler3 {
39 while.cond: ; preds = %while.body, %entry
40 %0 = call i32 @pure_computation()
41 br i1 %b, label %try.cont, label %while.body
43 while.body: ; preds = %while.cond
44 invoke void @may_throw()
45 to label %while.cond unwind label %catch.dispatch
47 catch.dispatch: ; preds = %while.body
48 %.lcssa1 = phi i32 [ %0, %while.body ]
49 %cp = cleanuppad within none []
50 store i32 %.lcssa1, i32* %s
51 cleanupret from %cp unwind to caller
53 try.cont: ; preds = %catch, %while.cond
57 ; CHECK-LABEL: define void @test2(
58 ; CHECK: %[[CP:.*]] = cleanuppad within none []
59 ; CHECK-NEXT: %[[CALL:.*]] = call i32 @pure_computation() [ "funclet"(token %[[CP]]) ]
60 ; CHECK-NEXT: store i32 %[[CALL]], i32* %s
61 ; CHECK-NEXT: cleanupret from %[[CP]] unwind to caller
63 define void @test3(i1 %a, i1 %b, i1 %c) personality i32 (...)* @__CxxFrameHandler3 {
65 %.frame = alloca i8, align 4
66 %bc = bitcast i8* %.frame to i32*
67 br i1 %a, label %try.success.or.caught, label %forbody
69 catch.object.Throwable: ; preds = %catch.dispatch
70 %cp = catchpad within %cs [i8* null, i32 64, i8* null]
73 try.success.or.caught: ; preds = %forcond.backedge, %0
76 postinvoke: ; preds = %forbody
77 br i1 %b, label %else, label %forcond.backedge
79 forcond.backedge: ; preds = %else, %postinvoke
80 br i1 %c, label %try.success.or.caught, label %forbody
82 catch.dispatch: ; preds = %else, %forbody
83 %cs = catchswitch within none [label %catch.object.Throwable] unwind to caller
85 forbody: ; preds = %forcond.backedge, %0
86 store i32 1, i32* %bc, align 4
87 invoke void @may_throw()
88 to label %postinvoke unwind label %catch.dispatch
90 else: ; preds = %postinvoke
91 invoke void @may_throw()
92 to label %forcond.backedge unwind label %catch.dispatch
95 ; CHECK-LABEL: define void @test3(
96 ; CHECK: catchswitch within none
97 ; CHECK: store i32 1, i32* %bc, align 4
99 declare void @may_throw()
101 declare i32 @pure_computation() nounwind argmemonly readonly
103 declare i32 @__CxxFrameHandler3(...)