1 ; RUN: opt -mtriple=x86_64-pc-windows-msvc -winehprepare -S -o - < %s | FileCheck %s
3 ; This test is based on the following code:
14 ; Parts of the IR have been hand-edited to simplify the test case.
15 ; The full IR will be restored when Windows C++ EH support is complete.
17 ;ModuleID = 'cppeh-catch-scalar.cpp'
18 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
19 target triple = "x86_64-pc-windows-msvc"
21 @_ZTIi = external constant i8*
23 ; The function entry will be rewritten like this.
24 ; CHECK: define void @_Z4testv() #0 {
26 ; CHECK: %exn.slot = alloca i8*
27 ; CHECK: %ehselector.slot = alloca i32
28 ; CHECK: %i = alloca i32, align 4
29 ; CHECK: call void (...)* @llvm.frameescape(i32* %i)
30 ; CHECK: invoke void @_Z9may_throwv()
31 ; CHECK: to label %invoke.cont unwind label %lpad
33 ; Function Attrs: uwtable
34 define void @_Z4testv() #0 {
36 %exn.slot = alloca i8*
37 %ehselector.slot = alloca i32
38 %i = alloca i32, align 4
39 invoke void @_Z9may_throwv()
40 to label %invoke.cont unwind label %lpad
42 invoke.cont: ; preds = %entry
45 lpad: ; preds = %entry
46 %tmp = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
47 catch i8* bitcast (i8** @_ZTIi to i8*)
48 %tmp1 = extractvalue { i8*, i32 } %tmp, 0
49 store i8* %tmp1, i8** %exn.slot
50 %tmp2 = extractvalue { i8*, i32 } %tmp, 1
51 store i32 %tmp2, i32* %ehselector.slot
52 br label %catch.dispatch
54 catch.dispatch: ; preds = %lpad
55 %sel = load i32, i32* %ehselector.slot
56 %tmp3 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*)) #3
57 %matches = icmp eq i32 %sel, %tmp3
58 br i1 %matches, label %catch, label %eh.resume
60 catch: ; preds = %catch.dispatch
61 %exn11 = load i8*, i8** %exn.slot
62 %i.i8 = bitcast i32* %i to i8*
63 call void @llvm.eh.begincatch(i8* %exn11, i8* %i.i8) #3
64 %tmp7 = load i32, i32* %i, align 4
65 call void @_Z10handle_inti(i32 %tmp7)
66 br label %invoke.cont2
68 invoke.cont2: ; preds = %catch
69 call void @llvm.eh.endcatch() #3
72 try.cont: ; preds = %invoke.cont2, %invoke.cont
75 eh.resume: ; preds = %catch.dispatch
76 %exn3 = load i8*, i8** %exn.slot
77 %sel4 = load i32, i32* %ehselector.slot
78 %lpad.val = insertvalue { i8*, i32 } undef, i8* %exn3, 0
79 %lpad.val5 = insertvalue { i8*, i32 } %lpad.val, i32 %sel4, 1
80 resume { i8*, i32 } %lpad.val5
83 ; CHECK: define internal i8* @_Z4testv.catch(i8*, i8*) {
85 ; CHECK: %i.i81 = call i8* @llvm.framerecover(i8* bitcast (void ()* @_Z4testv to i8*), i8* %1, i32 0)
86 ; CHECK: %i = bitcast i8* %i.i81 to i32*
87 ; CHECK: %tmp7 = load i32, i32* %i, align 4
88 ; CHECK: call void @_Z10handle_inti(i32 %tmp7)
89 ; CHECK: ret i8* blockaddress(@_Z4testv, %try.cont)
92 declare void @_Z9may_throwv() #1
94 declare i32 @__CxxFrameHandler3(...)
96 ; Function Attrs: nounwind readnone
97 declare i32 @llvm.eh.typeid.for(i8*) #2
99 declare void @llvm.eh.begincatch(i8*, i8*)
101 declare void @llvm.eh.endcatch()
103 declare void @_Z10handle_inti(i32) #1
105 attributes #0 = { uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
106 attributes #1 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
107 attributes #2 = { nounwind readnone }
108 attributes #3 = { nounwind }
112 !0 = !{!"clang version 3.7.0 (trunk 227474) (llvm/trunk 227508)"}