1 ; RUN: as < %s | opt -adce -simplifycfg | 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
43 %reg111 = getelementptr [20 x %FILE]* %__iob, long 0, long 1, ubyte 3 ; <ubyte*> [#uses=1]
44 %cast274 = getelementptr [34 x sbyte]* %.LC9, long 0, long 0 ; <sbyte*> [#uses=0]
45 %cast282 = cast ubyte* %reg111 to %FILE* ; <%FILE*> [#uses=0]
46 call void %exit( int 1 )
47 br label %UnifiedExitNode
50 %reg107-idxcast1 = cast int %fd to long ; <long> [#uses=2]
51 %reg107-idxcast2 = cast int %fd to long ; <long> [#uses=1]
52 %reg1311 = getelementptr [3 x %spec_fd_t]* %spec_fd, long 0, long %reg107-idxcast2 ; <%spec_fd_t*> [#uses=1]
53 %idx1 = getelementptr [3 x %spec_fd_t]* %spec_fd, long 0, long %reg107-idxcast1, ubyte 2 ; <int> [#uses=3]
54 %reg1321 = load int* %idx1
55 %idx2 = getelementptr %spec_fd_t* %reg1311, long 0, ubyte 1 ; <int> [#uses=1]
56 %reg1331 = load int* %idx2
57 %cond270 = setlt int %reg1321, %reg1331 ; <bool> [#uses=1]
58 br bool %cond270, label %bb9, label %bb6
61 %reg134 = load int* %dbglvl ; <int> [#uses=1]
62 %cond271 = setle int %reg134, 4 ; <bool> [#uses=1]
63 br bool %cond271, label %bb8, label %bb7
66 %cast277 = getelementptr [4 x sbyte]* %.LC10, long 0, long 0 ; <sbyte*> [#uses=0]
70 br label %UnifiedExitNode
73 %reg107-idxcast3 = cast int %fd to long ; <uint> [#uses=1]
74 %idx3 = getelementptr [3 x %spec_fd_t]* %spec_fd, long 0, long %reg107-idxcast3, ubyte 3 ; <ubyte*> [#uses=1]
75 %reg1601 = load ubyte** %idx3
76 %reg132-idxcast1 = cast int %reg1321 to long ; <long> [#uses=1]
77 %idx4 = getelementptr ubyte* %reg1601, long %reg132-idxcast1 ; <ubyte> [#uses=2]
78 %reg1621 = load ubyte* %idx4
79 %cast108 = cast ubyte %reg1621 to long ; <long> [#uses=0]
80 %reg157 = add int %reg1321, 1 ; <int> [#uses=1]
81 %idx5 = getelementptr [3 x %spec_fd_t]* %spec_fd, long 0, long %reg107-idxcast1, ubyte 2
82 store int %reg157, int* %idx5
83 %reg163 = load int* %dbglvl ; <int> [#uses=1]
84 %cond272 = setle int %reg163, 4 ; <bool> [#uses=1]
85 br bool %cond272, label %bb11, label %bb10
88 %cast279 = getelementptr [4 x sbyte]* %.LC11, long 0, long 0 ; <sbyte*> [#uses=0]
92 %cast291 = cast ubyte %reg1621 to int ; <int> [#uses=1]
93 br label %UnifiedExitNode
95 UnifiedExitNode: ;[#uses=3]
96 %UnifiedRetVal = phi int [ 42, %bb4 ], [ -1, %bb8 ], [ %cast291, %bb11 ] ; <int> [#uses=1]
97 ret int %UnifiedRetVal
100 declare int "puts"(sbyte*)
102 declare int "printf"(sbyte*, ...)