xref: /llvm-project/llvm/test/Transforms/InstCombine/2008-01-14-VarArgTrampoline.ll (revision 4ab40eca080965c65802710e39adbb78c4ce7bde)
1; RUN: opt < %s -passes=instcombine -S | grep zeroext
2
3	%struct.FRAME.nest = type { i32, ptr }
4	%struct.__builtin_trampoline = type { [10 x i8] }
5
6declare void @llvm.init.trampoline(ptr, ptr, ptr) nounwind
7declare ptr @llvm.adjust.trampoline(ptr) nounwind
8
9declare i32 @f(ptr nest , ...)
10
11define i32 @nest(i32 %n) {
12entry:
13	%FRAME.0 = alloca %struct.FRAME.nest, align 8		; <ptr> [#uses=3]
14	%TRAMP.216 = alloca [10 x i8], align 16		; <ptr> [#uses=1]
15	%TRAMP.216.sub = getelementptr [10 x i8], ptr %TRAMP.216, i32 0, i32 0		; <ptr> [#uses=1]
16	%tmp3 = getelementptr %struct.FRAME.nest, ptr %FRAME.0, i32 0, i32 0		; <ptr> [#uses=1]
17	store i32 %n, ptr %tmp3, align 8
18	call void @llvm.init.trampoline( ptr %TRAMP.216.sub, ptr @f, ptr %FRAME.0 )		; <ptr> [#uses=1]
19        %tramp = call ptr @llvm.adjust.trampoline( ptr %TRAMP.216.sub)
20	%tmp7 = getelementptr %struct.FRAME.nest, ptr %FRAME.0, i32 0, i32 1		; <ptr> [#uses=1]
21	store ptr %tramp, ptr %tmp7, align 8
22	%tmp2.i = call i32 (...) %tramp( i32 zeroext 0 )		; <i32> [#uses=1]
23	ret i32 %tmp2.i
24}
25