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cc714e2142
The personality routine currently lives in the LandingPadInst. This isn't desirable because: - All LandingPadInsts in the same function must have the same personality routine. This means that each LandingPadInst beyond the first has an operand which produces no additional information. - There is ongoing work to introduce EH IR constructs other than LandingPadInst. Moving the personality routine off of any one particular Instruction and onto the parent function seems a lot better than have N different places a personality function can sneak onto an exceptional function. Differential Revision: http://reviews.llvm.org/D10429 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239940 91177308-0d34-0410-b5e6-96231b3b80d8
60 lines
1.7 KiB
LLVM
60 lines
1.7 KiB
LLVM
; RUN: opt -S -winehprepare < %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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@str.__except = internal unnamed_addr constant [9 x i8] c"__except\00", align 1
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; Function Attrs: uwtable
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declare i32 @puts(i8*)
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define void @may_crash() {
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entry:
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store volatile i32 42, i32* null, align 4
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ret void
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}
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declare i32 @__C_specific_handler(...)
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; Function Attrs: nounwind readnone
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declare i8* @llvm.frameaddress(i32)
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; Function Attrs: uwtable
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define void @seh_catch_all() personality i8* bitcast (i32 (...)* @__C_specific_handler to i8*) {
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entry:
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%exn.slot = alloca i8*
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%ehselector.slot = alloca i32
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invoke void @may_crash()
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to label %invoke.cont unwind label %lpad
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invoke.cont: ; preds = %entry
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br label %__try.cont
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lpad: ; preds = %entry
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%0 = landingpad { i8*, i32 }
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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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br label %__except
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__except: ; preds = %lpad
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%call = call i32 @puts(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @str.__except, i32 0, i32 0))
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br label %__try.cont
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__try.cont: ; preds = %__except, %invoke.cont
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ret void
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}
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; CHECK-LABEL: define void @seh_catch_all()
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; CHECK: landingpad
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; CHECK-NEXT: catch i8* null
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; CHECK-NEXT: call i8* (...) @llvm.eh.actions(i32 1, i8* null, i32 -1, i8* blockaddress(@seh_catch_all, %lpad.split))
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; CHECK-NEXT: indirectbr
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;
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; CHECK: lpad.split:
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; CHECK-NOT: extractvalue
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; CHECK: call i32 @puts
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