1; RUN: llc < %s -mtriple=i386-apple-darwin -disable-fp-elim -no-x86-call-frame-opt | FileCheck %s
2
3        %struct.decode_t = type { i8, i8, i8, i8, i16, i8, i8, %struct.range_t** }
4        %struct.range_t = type { float, float, i32, i32, i32, [0 x i8] }
5
6define i32 @decode_byte(%struct.decode_t* %decode) nounwind {
7; CHECK-LABEL: decode_byte:
8; CHECK: pushl
9; CHECK: popl
10; CHECK: jmp
11; CHECK: popl
12entry:
13        %tmp2 = getelementptr %struct.decode_t, %struct.decode_t* %decode, i32 0, i32 4           ; <i16*> [#uses=1]
14        %tmp23 = bitcast i16* %tmp2 to i32*             ; <i32*> [#uses=1]
15        %tmp4 = load i32, i32* %tmp23                ; <i32> [#uses=1]
16        %tmp514 = lshr i32 %tmp4, 24            ; <i32> [#uses=1]
17        %tmp56 = trunc i32 %tmp514 to i8                ; <i8> [#uses=1]
18        %tmp7 = icmp eq i8 %tmp56, 0            ; <i1> [#uses=1]
19        br i1 %tmp7, label %UnifiedReturnBlock, label %cond_true
20
21cond_true:              ; preds = %entry
22        %tmp10 = tail call i32 @f( %struct.decode_t* %decode )          ; <i32> [#uses=1]
23        ret i32 %tmp10
24
25UnifiedReturnBlock:             ; preds = %entry
26        ret i32 0
27}
28
29declare i32 @f(%struct.decode_t*)
30
31
32; There should be no store for the undef operand.
33
34; CHECK: _test2:
35; CHECK-NOT: 8(%esp)
36; CHECK: 4(%esp)
37; CHECK-NOT: 8(%esp)
38; CHECK: calll
39declare i32 @foo(i32, i32, i32)
40
41define void @test2() nounwind {
42entry:
43  %call = call i32 @foo(i32 8, i32 6, i32 undef)
44  ret void
45}
46