| Chris Lattner | 5193954 | 2008-01-12 18:54:29 +0000 | [diff] [blame^] | 1 | ; RUN: llvm-as < %s | opt -inline | llvm-dis | not grep {llvm.memcpy} |
| 2 | |
| 3 | ; Inlining a byval struct should NOT cause an explicit copy |
| 4 | ; into an alloca if the function is readonly |
| 5 | |
| 6 | %struct.ss = type { i32, i64 } |
| 7 | @.str = internal constant [10 x i8] c"%d, %lld\0A\00" ; <[10 x i8]*> [#uses=1] |
| 8 | |
| 9 | define internal i32 @f(%struct.ss* byval %b) nounwind readonly { |
| 10 | entry: |
| 11 | %tmp = getelementptr %struct.ss* %b, i32 0, i32 0 ; <i32*> [#uses=2] |
| 12 | %tmp1 = load i32* %tmp, align 4 ; <i32> [#uses=1] |
| 13 | %tmp2 = add i32 %tmp1, 1 ; <i32> [#uses=1] |
| 14 | ret i32 %tmp2 |
| 15 | } |
| 16 | |
| 17 | declare i32 @printf(i8*, ...) nounwind |
| 18 | |
| 19 | define i32 @main() nounwind { |
| 20 | entry: |
| 21 | %S = alloca %struct.ss ; <%struct.ss*> [#uses=4] |
| 22 | %tmp1 = getelementptr %struct.ss* %S, i32 0, i32 0 ; <i32*> [#uses=1] |
| 23 | store i32 1, i32* %tmp1, align 8 |
| 24 | %tmp4 = getelementptr %struct.ss* %S, i32 0, i32 1 ; <i64*> [#uses=1] |
| 25 | store i64 2, i64* %tmp4, align 4 |
| 26 | %X = call i32 @f( %struct.ss* byval %S ) nounwind |
| 27 | ret i32 %X |
| 28 | } |