2461cdb417
Once the default for SimplifyCFG flips, we can no longer pass nullptr instead of DomTree to SimplifyCFG, so we need to propagate it here. We don't strictly need to actually preserve DomTree in DwarfEHPrepare, but we might as well do it, since it's trivial.
79 lines
2.2 KiB
LLVM
79 lines
2.2 KiB
LLVM
; RUN: llc -march=hexagon -simplifycfg-require-and-preserve-domtree=1 < %s | FileCheck %s
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; CHECK: .cfi_def_cfa r30
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; CHECK: .cfi_offset r31
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; CHECK: .cfi_offset r30
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@g0 = global i32 0, align 4
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@g1 = external constant i8*
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define i32 @f0() personality i8* bitcast (i32 (...)* @f3 to i8*) {
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b0:
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%v0 = alloca i32, align 4
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%v1 = alloca i8*
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%v2 = alloca i32
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%v3 = alloca i32, align 4
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store i32 0, i32* %v0
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%v4 = call i8* @f1(i32 4) #1
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%v5 = bitcast i8* %v4 to i32*
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store i32 20, i32* %v5
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invoke void @f2(i8* %v4, i8* bitcast (i8** @g1 to i8*), i8* null) #2
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to label %b6 unwind label %b1
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b1: ; preds = %b0
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%v6 = landingpad { i8*, i32 }
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catch i8* bitcast (i8** @g1 to i8*)
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%v7 = extractvalue { i8*, i32 } %v6, 0
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store i8* %v7, i8** %v1
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%v8 = extractvalue { i8*, i32 } %v6, 1
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store i32 %v8, i32* %v2
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br label %b2
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b2: ; preds = %b1
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%v9 = load i32, i32* %v2
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%v10 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @g1 to i8*)) #1
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%v11 = icmp eq i32 %v9, %v10
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br i1 %v11, label %b3, label %b5
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b3: ; preds = %b2
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%v12 = load i8*, i8** %v1
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%v13 = call i8* @f4(i8* %v12) #1
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%v14 = bitcast i8* %v13 to i32*
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%v15 = load i32, i32* %v14, align 4
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store i32 %v15, i32* %v3, align 4
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%v16 = load i32, i32* %v3, align 4
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store i32 %v16, i32* @g0, align 4
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call void @f5() #1
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br label %b4
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b4: ; preds = %b3
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%v17 = load i32, i32* @g0, align 4
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ret i32 %v17
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b5: ; preds = %b2
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%v18 = load i8*, i8** %v1
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%v19 = load i32, i32* %v2
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%v20 = insertvalue { i8*, i32 } undef, i8* %v18, 0
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%v21 = insertvalue { i8*, i32 } %v20, i32 %v19, 1
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resume { i8*, i32 } %v21
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b6: ; preds = %b0
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unreachable
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}
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declare i8* @f1(i32)
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declare void @f2(i8*, i8*, i8*)
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declare i32 @f3(...)
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; Function Attrs: nounwind readnone
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declare i32 @llvm.eh.typeid.for(i8*) #0
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declare i8* @f4(i8*)
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declare void @f5()
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attributes #0 = { nounwind readnone }
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attributes #1 = { nounwind }
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attributes #2 = { noreturn }
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