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7cf63ad252
When lowering invoke statement, all unwind destinations are directly added as successors of call site block, and the weight of those new edges are not assigned properly. Actually, default weight 16 are used for those edges. This patch calculates the proper edge weights for those edges when collecting all unwind destinations. Differential revision: http://reviews.llvm.org/D13354 llvm-svn: 250119
86 lines
4.2 KiB
LLVM
86 lines
4.2 KiB
LLVM
; RUN: llc -march=x86-64 -print-machineinstrs=expand-isel-pseudos %s -o /dev/null 2>&1 | FileCheck %s
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; Check if the edge weight to the catchpad is calculated correctly.
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; CHECK: Successors according to CFG: BB#3(1048575) BB#1(1) BB#4(1) BB#6(1) BB#8(1)
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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--windows-msvc18.0.0"
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%rtti.TypeDescriptor7 = type { i8**, i8*, [8 x i8] }
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%struct.HasDtor = type { i8 }
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$"\01??_R0?AUA@@@8" = comdat any
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$"\01??_R0?AUB@@@8" = comdat any
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$"\01??_R0?AUC@@@8" = comdat any
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@"\01??_7type_info@@6B@" = external constant i8*
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@"\01??_R0?AUA@@@8" = linkonce_odr global %rtti.TypeDescriptor7 { i8** @"\01??_7type_info@@6B@", i8* null, [8 x i8] c".?AUA@@\00" }, comdat
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@"\01??_R0?AUB@@@8" = linkonce_odr global %rtti.TypeDescriptor7 { i8** @"\01??_7type_info@@6B@", i8* null, [8 x i8] c".?AUB@@\00" }, comdat
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@"\01??_R0?AUC@@@8" = linkonce_odr global %rtti.TypeDescriptor7 { i8** @"\01??_7type_info@@6B@", i8* null, [8 x i8] c".?AUC@@\00" }, comdat
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; Function Attrs: uwtable
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define i32 @main() #0 personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) {
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entry:
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%o = alloca %struct.HasDtor, align 1
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%0 = getelementptr inbounds %struct.HasDtor, %struct.HasDtor* %o, i64 0, i32 0
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call void @llvm.lifetime.start(i64 1, i8* %0) #4
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invoke void @"\01?may_throw@@YAXXZ"()
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to label %try.cont unwind label %catch.dispatch
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catch.dispatch: ; preds = %entry
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%1 = catchpad [%rtti.TypeDescriptor7* @"\01??_R0?AUA@@@8", i32 0, i8* null]
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to label %catch.5 unwind label %catch.dispatch.1
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catch.5: ; preds = %catch.dispatch
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catchret %1 to label %try.cont
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try.cont: ; preds = %entry, %catch, %catch.3, %catch.5
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call void @"\01??1HasDtor@@QEAA@XZ"(%struct.HasDtor* nonnull %o) #4
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call void @llvm.lifetime.end(i64 1, i8* %0) #4
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ret i32 0
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catch.dispatch.1: ; preds = %catch.dispatch
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%2 = catchpad [%rtti.TypeDescriptor7* @"\01??_R0?AUB@@@8", i32 0, i8* null]
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to label %catch.3 unwind label %catch.dispatch.2
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catch.3: ; preds = %catch.dispatch.1
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catchret %2 to label %try.cont
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catch.dispatch.2: ; preds = %catch.dispatch.1
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%3 = catchpad [%rtti.TypeDescriptor7* @"\01??_R0?AUC@@@8", i32 0, i8* null]
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to label %catch unwind label %catchendblock
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catch: ; preds = %catch.dispatch.2
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catchret %3 to label %try.cont
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catchendblock: ; preds = %catch.dispatch.2
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catchendpad unwind label %ehcleanup
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ehcleanup: ; preds = %catchendblock
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%4 = cleanuppad []
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call void @"\01??1HasDtor@@QEAA@XZ"(%struct.HasDtor* nonnull %o) #4
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cleanupret %4 unwind to caller
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}
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; Function Attrs: nounwind argmemonly
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declare void @llvm.lifetime.start(i64, i8* nocapture) #1
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declare void @"\01?may_throw@@YAXXZ"() #2
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declare i32 @__CxxFrameHandler3(...)
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; Function Attrs: nounwind
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declare void @"\01??1HasDtor@@QEAA@XZ"(%struct.HasDtor*) #3
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; Function Attrs: nounwind argmemonly
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declare void @llvm.lifetime.end(i64, i8* nocapture) #1
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attributes #0 = { uwtable "disable-tail-calls"="false" "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" "target-features"="+mmx,+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #1 = { nounwind argmemonly }
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attributes #2 = { "disable-tail-calls"="false" "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" "target-features"="+mmx,+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #3 = { nounwind "disable-tail-calls"="false" "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" "target-features"="+mmx,+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #4 = { nounwind }
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