1 ; RUN: llvm-upgrade < %s | llvm-as | opt -adce -simplifycfg | llvm-dis
3 %FILE = type { int, ubyte*, ubyte*, ubyte, ubyte, uint, uint, uint }
4 %spec_fd_t = type { int, int, int, ubyte* }
5 %__iob = uninitialized global [20 x %FILE] ; <[20 x %FILE]*> [#uses=1]
6 %dbglvl = global int 4 ; <int*> [#uses=3]
7 %spec_fd = uninitialized global [3 x %spec_fd_t] ; <[3 x %spec_fd_t]*> [#uses=4]
8 %.LC9 = internal global [34 x sbyte] c"spec_read: fd=%d, > MAX_SPEC_FD!\0A\00" ; <[34 x sbyte]*> [#uses=1]
9 %.LC10 = internal global [4 x sbyte] c"EOF\00" ; <[4 x sbyte]*> [#uses=1]
10 %.LC11 = internal global [4 x sbyte] c"%d\0A\00" ; <[4 x sbyte]*> [#uses=1]
11 %.LC12 = internal global [17 x sbyte] c"spec_getc: %d = \00" ; <[17 x sbyte]*> [#uses=1]
13 implementation ; Functions:
15 declare int "fprintf"(%FILE*, sbyte*, ...)
17 declare void "exit"(int)
19 declare int "remove"(sbyte*)
21 declare int "fputc"(int, %FILE*)
23 declare uint "fwrite"(sbyte*, uint, uint, %FILE*)
25 declare void "perror"(sbyte*)
27 int "spec_getc"(int %fd) {
28 ; <label>:0 ;[#uses=0]
29 %reg109 = load int* %dbglvl ; <int> [#uses=1]
30 %cond266 = setle int %reg109, 4 ; <bool> [#uses=1]
31 br bool %cond266, label %bb3, label %bb2
34 %cast273 = getelementptr [17 x sbyte]* %.LC12, long 0, long 0 ; <sbyte*> [#uses=0]
38 %cond267 = setle int %fd, 3 ; <bool> [#uses=1]
39 br bool %cond267, label %bb5, label %bb4
42 %reg111 = getelementptr [20 x %FILE]* %__iob, long 0, long 1, uint 3 ; <ubyte*> [#uses=1]
43 %cast274 = getelementptr [34 x sbyte]* %.LC9, long 0, long 0 ; <sbyte*> [#uses=0]
44 %cast282 = cast ubyte* %reg111 to %FILE* ; <%FILE*> [#uses=0]
45 call void %exit( int 1 )
46 br label %UnifiedExitNode
49 %reg107-idxcast1 = cast int %fd to long ; <long> [#uses=2]
50 %reg107-idxcast2 = cast int %fd to long ; <long> [#uses=1]
51 %reg1311 = getelementptr [3 x %spec_fd_t]* %spec_fd, long 0, long %reg107-idxcast2 ; <%spec_fd_t*> [#uses=1]
52 %idx1 = getelementptr [3 x %spec_fd_t]* %spec_fd, long 0, long %reg107-idxcast1, uint 2 ; <int> [#uses=3]
53 %reg1321 = load int* %idx1
54 %idx2 = getelementptr %spec_fd_t* %reg1311, long 0, uint 1 ; <int> [#uses=1]
55 %reg1331 = load int* %idx2
56 %cond270 = setlt int %reg1321, %reg1331 ; <bool> [#uses=1]
57 br bool %cond270, label %bb9, label %bb6
60 %reg134 = load int* %dbglvl ; <int> [#uses=1]
61 %cond271 = setle int %reg134, 4 ; <bool> [#uses=1]
62 br bool %cond271, label %bb8, label %bb7
65 %cast277 = getelementptr [4 x sbyte]* %.LC10, long 0, long 0 ; <sbyte*> [#uses=0]
69 br label %UnifiedExitNode
72 %reg107-idxcast3 = cast int %fd to long ; <long> [#uses=1]
73 %idx3 = getelementptr [3 x %spec_fd_t]* %spec_fd, long 0, long %reg107-idxcast3, uint 3 ; <ubyte*> [#uses=1]
74 %reg1601 = load ubyte** %idx3
75 %reg132-idxcast1 = cast int %reg1321 to long ; <long> [#uses=1]
76 %idx4 = getelementptr ubyte* %reg1601, long %reg132-idxcast1 ; <ubyte> [#uses=2]
77 %reg1621 = load ubyte* %idx4
78 %cast108 = cast ubyte %reg1621 to long ; <long> [#uses=0]
79 %reg157 = add int %reg1321, 1 ; <int> [#uses=1]
80 %idx5 = getelementptr [3 x %spec_fd_t]* %spec_fd, long 0, long %reg107-idxcast1, uint 2
81 store int %reg157, int* %idx5
82 %reg163 = load int* %dbglvl ; <int> [#uses=1]
83 %cond272 = setle int %reg163, 4 ; <bool> [#uses=1]
84 br bool %cond272, label %bb11, label %bb10
87 %cast279 = getelementptr [4 x sbyte]* %.LC11, long 0, long 0 ; <sbyte*> [#uses=0]
91 %cast291 = cast ubyte %reg1621 to int ; <int> [#uses=1]
92 br label %UnifiedExitNode
94 UnifiedExitNode: ;[#uses=3]
95 %UnifiedRetVal = phi int [ 42, %bb4 ], [ -1, %bb8 ], [ %cast291, %bb11 ] ; <int> [#uses=1]
96 ret int %UnifiedRetVal
99 declare int "puts"(sbyte*)
101 declare int "printf"(sbyte*, ...)