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694a466675
We don't need to represent UnwindHelp in IR. Instead, we can use the knowledge that we are emitting the parent function to decide if we should create the UnwindHelp stack object. llvm-svn: 234061
222 lines
9.1 KiB
LLVM
222 lines
9.1 KiB
LLVM
; RUN: llc < %s | FileCheck %s
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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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%rtti.TypeDescriptor2 = type { i8**, i8*, [3 x i8] }
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%eh.CatchableType = type { i32, i32, i32, i32, i32, i32, i32 }
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%eh.CatchableTypeArray.1 = type { i32, [1 x i32] }
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%eh.ThrowInfo = type { i32, i32, i32, i32 }
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%struct.S = type { i8 }
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$"\01??_DS@@QEAA@XZ" = comdat any
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$"\01??_R0H@8" = comdat any
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$"_CT??_R0H@84" = comdat any
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$_CTA1H = comdat any
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$_TI1H = comdat any
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@"\01??_7type_info@@6B@" = external constant i8*
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@"\01??_R0H@8" = linkonce_odr global %rtti.TypeDescriptor2 { i8** @"\01??_7type_info@@6B@", i8* null, [3 x i8] c".H\00" }, comdat
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@__ImageBase = external constant i8
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@"_CT??_R0H@84" = linkonce_odr unnamed_addr constant %eh.CatchableType { i32 1, i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 0, i32 -1, i32 0, i32 4, i32 0 }, section ".xdata", comdat
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@_CTA1H = linkonce_odr unnamed_addr constant %eh.CatchableTypeArray.1 { i32 1, [1 x i32] [i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%eh.CatchableType* @"_CT??_R0H@84" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32)] }, section ".xdata", comdat
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@_TI1H = linkonce_odr unnamed_addr constant %eh.ThrowInfo { i32 0, i32 0, i32 0, i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%eh.CatchableTypeArray.1* @_CTA1H to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32) }, section ".xdata", comdat
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; CHECK-LABEL: "?test1@@YAXXZ":
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; CHECK: .seh_handlerdata
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; CHECK-NEXT: .long ("$cppxdata$?test1@@YAXXZ")@IMGREL
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; CHECK-NEXT:"$cppxdata$?test1@@YAXXZ":
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; CHECK-NEXT: .long 429065506
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; CHECK-NEXT: .long 1
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; CHECK-NEXT: .long ("$stateUnwindMap$?test1@@YAXXZ")@IMGREL
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; CHECK-NEXT: .long 0
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; CHECK-NEXT: .long 0
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; CHECK-NEXT: .long 1
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; CHECK-NEXT: .long ("$ip2state$?test1@@YAXXZ")@IMGREL
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; CHECK-NEXT: .long 32
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; CHECK-NEXT: .long 0
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; CHECK-NEXT: .long 1
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; CHECK-NEXT:"$stateUnwindMap$?test1@@YAXXZ":
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; CHECK-NEXT: .long -1
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; CHECK-NEXT: .long "?test1@@YAXXZ.cleanup"@IMGREL
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; CHECK-NEXT:"$ip2state$?test1@@YAXXZ":
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; CHECK-NEXT: .long .Ltmp0@IMGREL
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; CHECK-NEXT: .long 0
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define void @"\01?test1@@YAXXZ"() #0 {
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entry:
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%unwindhelp = alloca i64
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%tmp = alloca i32, align 4
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%exn.slot = alloca i8*
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%ehselector.slot = alloca i32
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store i32 0, i32* %tmp
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%0 = bitcast i32* %tmp to i8*
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call void (...)* @llvm.frameescape()
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store volatile i64 -2, i64* %unwindhelp
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%1 = bitcast i64* %unwindhelp to i8*
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call void @llvm.eh.unwindhelp(i8* %1)
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invoke void @_CxxThrowException(i8* %0, %eh.ThrowInfo* @_TI1H) #8
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to label %unreachable unwind label %lpad1
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lpad1: ; preds = %entry
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%2 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
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cleanup
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%recover = call i8* (...)* @llvm.eh.actions(i32 0, void (i8*, i8*)* @"\01?test1@@YAXXZ.cleanup")
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indirectbr i8* %recover, []
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unreachable: ; preds = %entry
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unreachable
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}
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declare void @_CxxThrowException(i8*, %eh.ThrowInfo*)
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declare i32 @__CxxFrameHandler3(...)
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; Function Attrs: nounwind
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define linkonce_odr void @"\01??_DS@@QEAA@XZ"(%struct.S* %this) unnamed_addr #1 comdat align 2 {
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entry:
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%this.addr = alloca %struct.S*, align 8
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store %struct.S* %this, %struct.S** %this.addr, align 8
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%this1 = load %struct.S*, %struct.S** %this.addr
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call void @"\01??1S@@QEAA@XZ"(%struct.S* %this1) #4
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ret void
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}
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; CHECK-LABEL: "?test2@@YAX_N@Z":
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; CHECK: .seh_handlerdata
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; CHECK-NEXT: .long ("$cppxdata$?test2@@YAX_N@Z")@IMGREL
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; CHECK-NEXT:"$cppxdata$?test2@@YAX_N@Z":
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; CHECK-NEXT: .long 429065506
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; CHECK-NEXT: .long 2
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; CHECK-NEXT: .long ("$stateUnwindMap$?test2@@YAX_N@Z")@IMGREL
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; CHECK-NEXT: .long 0
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; CHECK-NEXT: .long 0
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; CHECK-NEXT: .long 4
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; CHECK-NEXT: .long ("$ip2state$?test2@@YAX_N@Z")@IMGREL
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; CHECK-NEXT: .long 40
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; CHECK-NEXT: .long 0
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; CHECK-NEXT: .long 1
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; CHECK-NEXT:"$stateUnwindMap$?test2@@YAX_N@Z":
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; CHECK-NEXT: .long -1
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; CHECK-NEXT: .long "?test2@@YAX_N@Z.cleanup"@IMGREL
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; CHECK-NEXT: .long 0
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; CHECK-NEXT: .long "?test2@@YAX_N@Z.cleanup1"@IMGREL
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; CHECK-NEXT:"$ip2state$?test2@@YAX_N@Z":
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; CHECK-NEXT: .long .Lfunc_begin1@IMGREL
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; CHECK-NEXT: .long -1
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; CHECK-NEXT: .long .Ltmp7@IMGREL
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; CHECK-NEXT: .long 0
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; CHECK-NEXT: .long .Ltmp9@IMGREL
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; CHECK-NEXT: .long 1
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; CHECK-NEXT: .long .Ltmp12@IMGREL
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; CHECK-NEXT: .long 0
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define void @"\01?test2@@YAX_N@Z"(i1 zeroext %b) #2 {
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%b.addr = alloca i8, align 1
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%s = alloca %struct.S, align 1
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%exn.slot = alloca i8*
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%ehselector.slot = alloca i32
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%s1 = alloca %struct.S, align 1
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%frombool = zext i1 %b to i8
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store i8 %frombool, i8* %b.addr, align 1
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call void (...)* @llvm.frameescape(%struct.S* %s, %struct.S* %s1)
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call void @"\01?may_throw@@YAXXZ"()
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invoke void @"\01?may_throw@@YAXXZ"()
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to label %invoke.cont unwind label %lpad1
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invoke.cont: ; preds = %entry
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%1 = load i8, i8* %b.addr, align 1
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%tobool = trunc i8 %1 to i1
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br i1 %tobool, label %if.then, label %if.else
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if.then: ; preds = %invoke.cont
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invoke void @"\01?may_throw@@YAXXZ"()
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to label %invoke.cont3 unwind label %lpad3
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invoke.cont3: ; preds = %if.then
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call void @"\01??_DS@@QEAA@XZ"(%struct.S* %s1) #4
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br label %if.end
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lpad1: ; preds = %entry, %if.end
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%2 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
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cleanup
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%recover = call i8* (...)* @llvm.eh.actions(i32 0, void (i8*, i8*)* @"\01?test2@@YAX_N@Z.cleanup")
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indirectbr i8* %recover, []
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lpad3: ; preds = %if.then
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%3 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
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cleanup
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%recover4 = call i8* (...)* @llvm.eh.actions(i32 0, void (i8*, i8*)* @"\01?test2@@YAX_N@Z.cleanup1", i32 0, void (i8*, i8*)* @"\01?test2@@YAX_N@Z.cleanup")
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indirectbr i8* %recover4, []
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if.else: ; preds = %invoke.cont
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call void @"\01?dont_throw@@YAXXZ"() #4
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br label %if.end
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if.end: ; preds = %if.else, %invoke.cont3
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invoke void @"\01?may_throw@@YAXXZ"()
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to label %invoke.cont4 unwind label %lpad1
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invoke.cont4: ; preds = %if.end
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call void @"\01??_DS@@QEAA@XZ"(%struct.S* %s) #4
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ret void
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}
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declare void @"\01?may_throw@@YAXXZ"() #3
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; Function Attrs: nounwind
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declare void @"\01?dont_throw@@YAXXZ"() #1
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; Function Attrs: nounwind
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declare void @"\01??1S@@QEAA@XZ"(%struct.S*) #1
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; Function Attrs: nounwind
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declare i8* @llvm.eh.actions(...) #4
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define internal void @"\01?test1@@YAXXZ.cleanup"(i8*, i8*) #5 {
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entry:
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%s = alloca %struct.S, align 1
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call void @"\01??_DS@@QEAA@XZ"(%struct.S* %s) #4
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ret void
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}
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; Function Attrs: nounwind
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declare void @llvm.frameescape(...) #4
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; Function Attrs: nounwind readnone
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declare i8* @llvm.framerecover(i8*, i8*, i32) #6
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; Function Attrs: nounwind
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declare void @llvm.eh.unwindhelp(i8*) #4
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define internal void @"\01?test2@@YAX_N@Z.cleanup"(i8*, i8*) #7 {
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entry:
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%s.i8 = call i8* @llvm.framerecover(i8* bitcast (void (i1)* @"\01?test2@@YAX_N@Z" to i8*), i8* %1, i32 0)
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%s = bitcast i8* %s.i8 to %struct.S*
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call void @"\01??_DS@@QEAA@XZ"(%struct.S* %s) #4
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ret void
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}
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define internal void @"\01?test2@@YAX_N@Z.cleanup1"(i8*, i8*) #7 {
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entry:
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%s1.i8 = call i8* @llvm.framerecover(i8* bitcast (void (i1)* @"\01?test2@@YAX_N@Z" to i8*), i8* %1, i32 1)
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%s1 = bitcast i8* %s1.i8 to %struct.S*
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call void @"\01??_DS@@QEAA@XZ"(%struct.S* %s1) #4
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ret void
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}
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attributes #0 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-realign-stack" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" "wineh-parent"="?test1@@YAXXZ" }
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attributes #1 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-realign-stack" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #2 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-realign-stack" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" "wineh-parent"="?test2@@YAX_N@Z" }
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attributes #3 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-realign-stack" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #4 = { nounwind }
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attributes #5 = { "wineh-parent"="?test1@@YAXXZ" }
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attributes #6 = { nounwind readnone }
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attributes #7 = { "wineh-parent"="?test2@@YAX_N@Z" }
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attributes #8 = { noreturn }
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