forked from OSchip/llvm-project
37 lines
1.2 KiB
LLVM
37 lines
1.2 KiB
LLVM
; RUN: llvm-as < %s | opt -deadargelim | llvm-dis > %t
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; RUN: cat %t | grep {define internal \{ \} @test}
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; RUN: cat %t | grep {define internal \{ i32 \} @test}
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; RUN: cat %t | grep {define internal \<\{ i32, i32 \}\> @test}
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; Check if the pass doesn't modify anything that doesn't need changing. We feed
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; an unused argument to each function to lure it into changing _something_ about
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; the function and then changing to much.
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; This checks if the struct retval isn't changed into a void
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define internal { } @test(i32 %DEADARG1) {
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ret { } { }
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}
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; This checks if the struct retval isn't removed
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define internal {i32} @test1(i32 %DEADARG1) {
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ret { i32 } { i32 1 }
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}
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; This checks if the struct doesn't get non-packed
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define internal <{ i32, i32 }> @test2(i32 %DEADARG1) {
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ret <{ i32, i32 }> <{ i32 1, i32 2 }>
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}
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; We use this external function to make sure the return values don't become dead
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declare void @user({ }, { i32 }, <{ i32, i32 }>)
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define void @caller() {
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%A = call { } @test(i32 0)
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%B = call { i32 } @test1(i32 1)
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%C = call <{ i32, i32 }> @test2(i32 2)
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call void @user({ } %A, { i32 } %B, <{ i32, i32 }> %C)
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ret void
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}
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