forked from OSchip/llvm-project
34 lines
662 B
LLVM
34 lines
662 B
LLVM
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; RUN: opt -bdce -S < %s | FileCheck %s
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declare i32 @strlen(i8*) readonly nounwind
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define void @test1() {
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call i32 @strlen( i8* null )
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ret void
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; CHECK-LABEL: @test1
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; CHECK-NOT: call
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; CHECK: ret void
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}
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define i32 @test2() {
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; invoke of pure function should not be deleted!
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invoke i32 @strlen( i8* null ) readnone
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to label %Cont unwind label %Other
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Cont: ; preds = %0
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ret i32 0
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Other: ; preds = %0
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%exn = landingpad {i8*, i32} personality i32 (...)* @__gxx_personality_v0
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cleanup
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ret i32 1
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; CHECK-LABEL: @test2
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; CHECK: invoke
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; CHECK: ret i32 1
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}
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declare i32 @__gxx_personality_v0(...)
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