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Add more testcases for ADCE
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2715 91177308-0d34-0410-b5e6-96231b3b80d8
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Chris Lattner
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@ -1,7 +1,7 @@
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; This is the test case taken from Appel's book that illustrates a hard case
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; that SCCP gets right, and when followed by ADCE, is completely eliminated
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;
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; RUN: if as < %s | opt -sccp -adce | dis | grep br
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; RUN: if as < %s | opt -sccp -adce -simplifycfg | dis | grep br
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; RUN: then exit 1
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; RUN: else exit 0
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; RUN: fi
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14
test/Transforms/ADCE/basictest.ll
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14
test/Transforms/ADCE/basictest.ll
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@ -0,0 +1,14 @@
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; RUN: as < %s | opt -adce -simplifycfg | dis
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int "Test"(int %A, int %B) {
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BB1:
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br label %BB4
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BB2:
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br label %BB3
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BB3:
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%ret = phi int [%X, %BB4], [%B, %BB2]
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ret int %ret
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BB4:
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%X = phi int [%A, %BB1]
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br label %BB3
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}
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96
test/Transforms/ADCE/basictest1.ll
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96
test/Transforms/ADCE/basictest1.ll
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@ -0,0 +1,96 @@
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; RUN: as < %s | opt -adce -simplifycfg | dis
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%FILE = type { int, ubyte*, ubyte*, ubyte, ubyte, uint, uint, uint }
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%spec_fd_t = type { int, int, int, ubyte* }
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%__iob = uninitialized global [20 x %FILE] ; <[20 x %FILE]*> [#uses=1]
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%dbglvl = global int 4 ; <int*> [#uses=3]
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%spec_fd = uninitialized global [3 x %spec_fd_t] ; <[3 x %spec_fd_t]*> [#uses=4]
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%.LC9 = internal global [34 x sbyte] c"spec_read: fd=%d, > MAX_SPEC_FD!\0A\00" ; <[34 x sbyte]*> [#uses=1]
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%.LC10 = internal global [4 x sbyte] c"EOF\00" ; <[4 x sbyte]*> [#uses=1]
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%.LC11 = internal global [4 x sbyte] c"%d\0A\00" ; <[4 x sbyte]*> [#uses=1]
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%.LC12 = internal global [17 x sbyte] c"spec_getc: %d = \00" ; <[17 x sbyte]*> [#uses=1]
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implementation ; Functions:
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declare int "fprintf"(%FILE*, sbyte*, ...)
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declare void "exit"(int)
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declare int "remove"(sbyte*)
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declare int "fputc"(int, %FILE*)
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declare uint "fwrite"(sbyte*, uint, uint, %FILE*)
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declare void "perror"(sbyte*)
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int "spec_getc"(int %fd) {
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; <label>:0 ;[#uses=0]
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%reg109 = load int* %dbglvl ; <int> [#uses=1]
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%cond266 = setle int %reg109, 4 ; <bool> [#uses=1]
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br bool %cond266, label %bb3, label %bb2
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bb2: ;[#uses=1]
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%cast273 = getelementptr [17 x sbyte]* %.LC12, uint 0, uint 0 ; <sbyte*> [#uses=0]
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br label %bb3
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bb3: ;[#uses=2]
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%cond267 = setle int %fd, 3 ; <bool> [#uses=1]
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br bool %cond267, label %bb5, label %bb4
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bb4: ;[#uses=2]
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%reg111 = getelementptr [20 x %FILE]* %__iob, uint 0, uint 1, ubyte 3 ; <ubyte*> [#uses=1]
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%cast274 = getelementptr [34 x sbyte]* %.LC9, uint 0, uint 0 ; <sbyte*> [#uses=0]
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%cast282 = cast ubyte* %reg111 to %FILE* ; <%FILE*> [#uses=0]
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call void %exit( int 1 )
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br label %UnifiedExitNode
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bb5: ;[#uses=1]
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%reg107-idxcast1 = cast int %fd to uint ; <uint> [#uses=2]
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%reg107-idxcast2 = cast int %fd to uint ; <uint> [#uses=1]
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%reg1311 = getelementptr [3 x %spec_fd_t]* %spec_fd, uint 0, uint %reg107-idxcast2 ; <%spec_fd_t*> [#uses=1]
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%reg1321 = load [3 x %spec_fd_t]* %spec_fd, uint 0, uint %reg107-idxcast1, ubyte 2 ; <int> [#uses=3]
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%reg1331 = load %spec_fd_t* %reg1311, uint 0, ubyte 1 ; <int> [#uses=1]
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%cond270 = setlt int %reg1321, %reg1331 ; <bool> [#uses=1]
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br bool %cond270, label %bb9, label %bb6
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bb6: ;[#uses=1]
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%reg134 = load int* %dbglvl ; <int> [#uses=1]
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%cond271 = setle int %reg134, 4 ; <bool> [#uses=1]
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br bool %cond271, label %bb8, label %bb7
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bb7: ;[#uses=1]
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%cast277 = getelementptr [4 x sbyte]* %.LC10, uint 0, uint 0 ; <sbyte*> [#uses=0]
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br label %bb8
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bb8: ;[#uses=3]
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br label %UnifiedExitNode
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bb9: ;[#uses=1]
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%reg107-idxcast3 = cast int %fd to uint ; <uint> [#uses=1]
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%reg1601 = load [3 x %spec_fd_t]* %spec_fd, uint 0, uint %reg107-idxcast3, ubyte 3 ; <ubyte*> [#uses=1]
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%reg132-idxcast1 = cast int %reg1321 to uint ; <uint> [#uses=1]
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%reg1621 = load ubyte* %reg1601, uint %reg132-idxcast1 ; <ubyte> [#uses=2]
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%cast108 = cast ubyte %reg1621 to uint ; <uint> [#uses=0]
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%reg157 = add int %reg1321, 1 ; <int> [#uses=1]
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store int %reg157, [3 x %spec_fd_t]* %spec_fd, uint 0, uint %reg107-idxcast1, ubyte 2
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%reg163 = load int* %dbglvl ; <int> [#uses=1]
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%cond272 = setle int %reg163, 4 ; <bool> [#uses=1]
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br bool %cond272, label %bb11, label %bb10
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bb10: ;[#uses=1]
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%cast279 = getelementptr [4 x sbyte]* %.LC11, uint 0, uint 0 ; <sbyte*> [#uses=0]
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br label %bb11
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bb11: ;[#uses=3]
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%cast291 = cast ubyte %reg1621 to int ; <int> [#uses=1]
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br label %UnifiedExitNode
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UnifiedExitNode: ;[#uses=3]
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%UnifiedRetVal = phi int [ 42, %bb4 ], [ -1, %bb8 ], [ %cast291, %bb11 ] ; <int> [#uses=1]
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ret int %UnifiedRetVal
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}
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declare int "puts"(sbyte*)
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declare int "printf"(sbyte*, ...)
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97
test/Transforms/ADCE/basictest2.ll
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97
test/Transforms/ADCE/basictest2.ll
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@ -0,0 +1,97 @@
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; RUN: as < %s | opt -adce -simplifycfg | dis
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%FILE = type { int, ubyte*, ubyte*, ubyte, ubyte, uint, uint, uint }
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%spec_fd_t = type { int, int, int, ubyte* }
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%__iob = uninitialized global [20 x %FILE] ; <[20 x %FILE]*> [#uses=1]
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%dbglvl = global int 4 ; <int*> [#uses=3]
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%spec_fd = uninitialized global [3 x %spec_fd_t] ; <[3 x %spec_fd_t]*> [#uses=4]
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%.LC9 = internal global [34 x sbyte] c"spec_read: fd=%d, > MAX_SPEC_FD!\0A\00" ; <[34 x sbyte]*> [#uses=1]
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%.LC10 = internal global [4 x sbyte] c"EOF\00" ; <[4 x sbyte]*> [#uses=1]
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%.LC11 = internal global [4 x sbyte] c"%d\0A\00" ; <[4 x sbyte]*> [#uses=1]
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%.LC12 = internal global [17 x sbyte] c"spec_getc: %d = \00" ; <[17 x sbyte]*> [#uses=1]
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implementation ; Functions:
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declare int "fprintf"(%FILE*, sbyte*, ...)
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declare void "exit"(int)
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declare int "remove"(sbyte*)
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declare int "fputc"(int, %FILE*)
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declare uint "fwrite"(sbyte*, uint, uint, %FILE*)
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declare void "perror"(sbyte*)
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int "spec_getc"(int %fd) {
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; <label>:0 ;[#uses=0]
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%reg109 = load int* %dbglvl ; <int> [#uses=1]
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%cond266 = setle int %reg109, 4 ; <bool> [#uses=1]
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br bool %cond266, label %bb3, label %bb2
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bb2: ;[#uses=1]
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%cast273 = getelementptr [17 x sbyte]* %.LC12, uint 0, uint 0 ; <sbyte*> [#uses=0]
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br label %bb3
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bb3: ;[#uses=2]
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%cond267 = setle int %fd, 3 ; <bool> [#uses=1]
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; br bool %cond267, label %bb5, label %bb4
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br label %bb5
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bb4: ;[#uses=2]
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%reg111 = getelementptr [20 x %FILE]* %__iob, uint 0, uint 1, ubyte 3 ; <ubyte*> [#uses=1]
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%cast274 = getelementptr [34 x sbyte]* %.LC9, uint 0, uint 0 ; <sbyte*> [#uses=0]
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%cast282 = cast ubyte* %reg111 to %FILE* ; <%FILE*> [#uses=0]
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call void %exit( int 1 )
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br label %UnifiedExitNode
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bb5: ;[#uses=1]
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%reg107-idxcast1 = cast int %fd to uint ; <uint> [#uses=2]
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%reg107-idxcast2 = cast int %fd to uint ; <uint> [#uses=1]
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%reg1311 = getelementptr [3 x %spec_fd_t]* %spec_fd, uint 0, uint %reg107-idxcast2 ; <%spec_fd_t*> [#uses=1]
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%reg1321 = load [3 x %spec_fd_t]* %spec_fd, uint 0, uint %reg107-idxcast1, ubyte 2 ; <int> [#uses=3]
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%reg1331 = load %spec_fd_t* %reg1311, uint 0, ubyte 1 ; <int> [#uses=1]
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%cond270 = setlt int %reg1321, %reg1331 ; <bool> [#uses=1]
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br bool %cond270, label %bb9, label %bb6
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bb6: ;[#uses=1]
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%reg134 = load int* %dbglvl ; <int> [#uses=1]
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%cond271 = setle int %reg134, 4 ; <bool> [#uses=1]
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br bool %cond271, label %bb8, label %bb7
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bb7: ;[#uses=1]
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%cast277 = getelementptr [4 x sbyte]* %.LC10, uint 0, uint 0 ; <sbyte*> [#uses=0]
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br label %bb8
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bb8: ;[#uses=3]
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br label %UnifiedExitNode
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bb9: ;[#uses=1]
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%reg107-idxcast3 = cast int %fd to uint ; <uint> [#uses=1]
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%reg1601 = load [3 x %spec_fd_t]* %spec_fd, uint 0, uint %reg107-idxcast3, ubyte 3 ; <ubyte*> [#uses=1]
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%reg132-idxcast1 = cast int %reg1321 to uint ; <uint> [#uses=1]
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%reg1621 = load ubyte* %reg1601, uint %reg132-idxcast1 ; <ubyte> [#uses=2]
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%cast108 = cast ubyte %reg1621 to uint ; <uint> [#uses=0]
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%reg157 = add int %reg1321, 1 ; <int> [#uses=1]
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store int %reg157, [3 x %spec_fd_t]* %spec_fd, uint 0, uint %reg107-idxcast1, ubyte 2
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%reg163 = load int* %dbglvl ; <int> [#uses=1]
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%cond272 = setle int %reg163, 4 ; <bool> [#uses=1]
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br bool %cond272, label %bb11, label %bb10
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bb10: ;[#uses=1]
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%cast279 = getelementptr [4 x sbyte]* %.LC11, uint 0, uint 0 ; <sbyte*> [#uses=0]
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br label %bb11
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bb11: ;[#uses=3]
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%cast291 = cast ubyte %reg1621 to int ; <int> [#uses=1]
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br label %UnifiedExitNode
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UnifiedExitNode: ;[#uses=3]
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%UnifiedRetVal = phi int [ 42, %bb4 ], [ -1, %bb8 ], [ %cast291, %bb11 ] ; <int> [#uses=1]
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ret int %UnifiedRetVal
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}
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declare int "puts"(sbyte*)
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declare int "printf"(sbyte*, ...)
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