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https://github.com/c64scene-ar/llvm-6502.git
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9389 91177308-0d34-0410-b5e6-96231b3b80d8
37 lines
587 B
LLVM
37 lines
587 B
LLVM
; RUN: llvm-as < %s | opt -deadargelim -die | llvm-dis | not grep DEAD
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%P = external global int
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implementation
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internal int %test(int %DEADARG) { ; Dead arg only used by dead retval
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ret int %DEADARG
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}
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internal int %test2(int %DEADARG) {
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%DEADRETVAL = call int %test(int %DEADARG)
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ret int %DEADRETVAL
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}
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void %test3(int %X) {
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%DEADRETVAL = call int %test2(int %X)
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ret void
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}
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internal int %foo() {
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%DEAD = load int* %P
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ret int %DEAD
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}
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internal int %id(int %X) {
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ret int %X
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}
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void %test4() {
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%DEAD = call int %foo()
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%DEAD2 = call int %id(int %DEAD)
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ret void
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}
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