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0595a97817
Differential Revision: http://reviews.llvm.org/D9311 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@236046 91177308-0d34-0410-b5e6-96231b3b80d8
107 lines
3.9 KiB
LLVM
107 lines
3.9 KiB
LLVM
; RUN: opt -mtriple=x86_64-pc-windows-msvc -winehprepare -S -o - < %s | FileCheck %s
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; This test is based on the following code:
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;
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; void test()
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; {
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; try {
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; Obj o;
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; may_throw();
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; } catch (...) {
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; }
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; }
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;
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; The purpose of this test is to verify that we create separate catch and
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; cleanup handlers. When compiling for the C++ 11 standard, this isn't
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; strictly necessary, since calling the destructor from the catch handler
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; would be logically equivalent to calling it from a cleanup handler.
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; However, if the -std=c++98 option is used, an exception in the cleanup
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; code should terminate the process (the MSVCRT runtime will do that) but
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; if the destructor is called from the catch handler, it wouldn't terminate
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; the process
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; ModuleID = 'cppeh-mixed-catch-and-cleanup.cpp'
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target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-pc-windows-msvc"
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%class.Obj = type { i8 }
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; This just verifies that the function was processed by WinEHPrepare.
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;
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; CHECK-LABEL: define void @"\01?test@@YAXXZ"()
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; CHECK: entry:
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; CHECK: call void (...) @llvm.frameescape
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; CHECK: }
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; Function Attrs: nounwind uwtable
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define void @"\01?test@@YAXXZ"() #0 {
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entry:
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%o = alloca %class.Obj, align 1
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%exn.slot = alloca i8*
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%ehselector.slot = alloca i32
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invoke void @"\01?may_throw@@YAXXZ"()
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to label %invoke.cont unwind label %lpad
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invoke.cont: ; preds = %entry
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call void @"\01??1Obj@@QEAA@XZ"(%class.Obj* %o) #3
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br label %try.cont
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lpad: ; preds = %entry
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%0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
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catch i8* null
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%1 = extractvalue { i8*, i32 } %0, 0
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store i8* %1, i8** %exn.slot
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%2 = extractvalue { i8*, i32 } %0, 1
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store i32 %2, i32* %ehselector.slot
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call void @"\01??1Obj@@QEAA@XZ"(%class.Obj* %o) #3
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%exn = load i8*, i8** %exn.slot
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call void @llvm.eh.begincatch(i8* %exn, i8* null) #3
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call void @llvm.eh.endcatch() #3
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br label %try.cont
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try.cont: ; preds = %catch, %invoke.cont
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ret void
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}
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; Verify that a cleanup handler was created and that it calls ~Obj().
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; CHECK-LABEL: define internal void @"\01?test@@YAXXZ.cleanup"(i8*, i8*)
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; CHECK: entry:
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; CHECK: @llvm.framerecover(i8* bitcast (void ()* @"\01?test@@YAXXZ" to i8*), i8* %1, i32 0)
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; CHECK: call void @"\01??1Obj@@QEAA@XZ"
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; CHECK: ret void
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; CHECK: }
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; Verify that a catch handler was created and that it does not call ~Obj().
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; CHECK-LABEL: define internal i8* @"\01?test@@YAXXZ.catch"(i8*, i8*)
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; CHECK: entry:
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; CHECK-NOT: call void @"\01??1Obj@@QEAA@XZ"
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; CHECK: ret i8* blockaddress(@"\01?test@@YAXXZ", %try.cont)
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; CHECK: }
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declare void @"\01?may_throw@@YAXXZ"() #1
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declare i32 @__CxxFrameHandler3(...)
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; Function Attrs: nounwind
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declare void @"\01??1Obj@@QEAA@XZ"(%class.Obj*) #2
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; Function Attrs: nounwind
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declare void @llvm.eh.begincatch(i8* nocapture, i8* nocapture) #3
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; Function Attrs: nounwind
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declare void @llvm.eh.endcatch() #3
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attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #1 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #2 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #3 = { nounwind }
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!llvm.module.flags = !{!0}
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!llvm.ident = !{!1}
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!0 = !{i32 1, !"PIC Level", i32 2}
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!1 = !{!"clang version 3.7.0 (trunk 235779) (llvm/trunk 235769)"}
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