llvm-6502/test/Transforms/GlobalOpt/deadfunction.ll

28 lines
706 B
LLVM

; RUN: opt < %s -globalopt -S | FileCheck %s
; CHECK-NOT: test
declare void @aa()
declare void @bb()
; Test that we can erase a function which has a blockaddress referring to it
@test.x = internal unnamed_addr constant [3 x i8*] [i8* blockaddress(@test, %a), i8* blockaddress(@test, %b), i8* blockaddress(@test, %c)], align 16
define internal void @test(i32 %n) nounwind noinline {
entry:
%idxprom = sext i32 %n to i64
%arrayidx = getelementptr inbounds [3 x i8*]* @test.x, i64 0, i64 %idxprom
%0 = load i8** %arrayidx, align 8
indirectbr i8* %0, [label %a, label %b, label %c]
a:
tail call void @aa() nounwind
br label %b
b:
tail call void @bb() nounwind
br label %c
c:
ret void
}