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new testcase narrowed down from xboard

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llvm-svn: 7910
This commit is contained in:
Chris Lattner 2003-08-15 23:15:37 +00:00
parent aa7c7ca541
commit 916993f384
2 changed files with 130 additions and 0 deletions
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65
test/Regression/Transforms/LoopPreheaders/2003-08-15-PreheadersFail.ll Normal file
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; RUN: as < %s | opt -tailduplicate -instcombine -simplifycfg -print -licm -disable-output
target endian = little
target pointersize = 32
%yy_base = external global [787 x short] ; <[787 x short]*> [#uses=1]
%yy_state_ptr = external global int* ; <int**> [#uses=3]
%yy_state_buf = external global [16386 x int] ; <[16386 x int]*> [#uses=1]
%yy_lp = external global int ; <int*> [#uses=1]
implementation ; Functions:
int %_yylex() { ; No predecessors!
br label %loopentry.0
loopentry.0: ; preds = %0, %else.26
store int* getelementptr ([16386 x int]* %yy_state_buf, long 0, long 0), int** %yy_state_ptr
%tmp.35 = load int** %yy_state_ptr ; <int*> [#uses=2]
%inc.0 = getelementptr int* %tmp.35, long 1 ; <int*> [#uses=1]
store int* %inc.0, int** %yy_state_ptr
%tmp.36 = load int* null ; <int> [#uses=1]
store int %tmp.36, int* %tmp.35
br label %loopexit.2
loopexit.2: ; preds = %loopentry.0, %else.26, %loopexit.2
store sbyte* null, sbyte** null
%tmp.91 = load int* null ; <int> [#uses=1]
%tmp.92 = cast int %tmp.91 to long ; <long> [#uses=1]
%tmp.93 = getelementptr [787 x short]* %yy_base, long 0, long %tmp.92 ; <short*> [#uses=1]
%tmp.94 = load short* %tmp.93 ; <short> [#uses=1]
%tmp.95 = setne short %tmp.94, 4394 ; <bool> [#uses=1]
br bool %tmp.95, label %loopexit.2, label %yy_find_action
yy_find_action: ; preds = %loopexit.2, %else.26
br label %loopentry.3
loopentry.3: ; preds = %yy_find_action, %shortcirc_done.0, %then.9
%tmp.105 = load int* %yy_lp ; <int> [#uses=1]
%tmp.106 = setne int %tmp.105, 0 ; <bool> [#uses=1]
br bool %tmp.106, label %shortcirc_next.0, label %shortcirc_done.0
shortcirc_next.0: ; preds = %loopentry.3
%tmp.114 = load short* null ; <short> [#uses=1]
%tmp.115 = cast short %tmp.114 to int ; <int> [#uses=1]
%tmp.116 = setlt int 0, %tmp.115 ; <bool> [#uses=1]
br label %shortcirc_done.0
shortcirc_done.0: ; preds = %loopentry.3, %shortcirc_next.0
%shortcirc_val.0 = phi bool [ false, %loopentry.3 ], [ %tmp.116, %shortcirc_next.0 ] ; <bool> [#uses=1]
br bool %shortcirc_val.0, label %else.0, label %loopentry.3
else.0: ; preds = %shortcirc_done.0
%tmp.144 = load int* null ; <int> [#uses=1]
%tmp.145 = and int %tmp.144, 8192 ; <int> [#uses=1]
%tmp.146 = setne int %tmp.145, 0 ; <bool> [#uses=1]
br bool %tmp.146, label %then.9, label %else.26
then.9: ; preds = %else.0
br label %loopentry.3
else.26: ; preds = %else.1
switch uint 0, label %loopentry.0 [
uint 2, label %yy_find_action
uint 0, label %loopexit.2
]
}

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test/Regression/Transforms/LoopSimplify/2003-08-15-PreheadersFail.ll Normal file
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; RUN: as < %s | opt -tailduplicate -instcombine -simplifycfg -print -licm -disable-output
target endian = little
target pointersize = 32
%yy_base = external global [787 x short] ; <[787 x short]*> [#uses=1]
%yy_state_ptr = external global int* ; <int**> [#uses=3]
%yy_state_buf = external global [16386 x int] ; <[16386 x int]*> [#uses=1]
%yy_lp = external global int ; <int*> [#uses=1]
implementation ; Functions:
int %_yylex() { ; No predecessors!
br label %loopentry.0
loopentry.0: ; preds = %0, %else.26
store int* getelementptr ([16386 x int]* %yy_state_buf, long 0, long 0), int** %yy_state_ptr
%tmp.35 = load int** %yy_state_ptr ; <int*> [#uses=2]
%inc.0 = getelementptr int* %tmp.35, long 1 ; <int*> [#uses=1]
store int* %inc.0, int** %yy_state_ptr
%tmp.36 = load int* null ; <int> [#uses=1]
store int %tmp.36, int* %tmp.35
br label %loopexit.2
loopexit.2: ; preds = %loopentry.0, %else.26, %loopexit.2
store sbyte* null, sbyte** null
%tmp.91 = load int* null ; <int> [#uses=1]
%tmp.92 = cast int %tmp.91 to long ; <long> [#uses=1]
%tmp.93 = getelementptr [787 x short]* %yy_base, long 0, long %tmp.92 ; <short*> [#uses=1]
%tmp.94 = load short* %tmp.93 ; <short> [#uses=1]
%tmp.95 = setne short %tmp.94, 4394 ; <bool> [#uses=1]
br bool %tmp.95, label %loopexit.2, label %yy_find_action
yy_find_action: ; preds = %loopexit.2, %else.26
br label %loopentry.3
loopentry.3: ; preds = %yy_find_action, %shortcirc_done.0, %then.9
%tmp.105 = load int* %yy_lp ; <int> [#uses=1]
%tmp.106 = setne int %tmp.105, 0 ; <bool> [#uses=1]
br bool %tmp.106, label %shortcirc_next.0, label %shortcirc_done.0
shortcirc_next.0: ; preds = %loopentry.3
%tmp.114 = load short* null ; <short> [#uses=1]
%tmp.115 = cast short %tmp.114 to int ; <int> [#uses=1]
%tmp.116 = setlt int 0, %tmp.115 ; <bool> [#uses=1]
br label %shortcirc_done.0
shortcirc_done.0: ; preds = %loopentry.3, %shortcirc_next.0
%shortcirc_val.0 = phi bool [ false, %loopentry.3 ], [ %tmp.116, %shortcirc_next.0 ] ; <bool> [#uses=1]
br bool %shortcirc_val.0, label %else.0, label %loopentry.3
else.0: ; preds = %shortcirc_done.0
%tmp.144 = load int* null ; <int> [#uses=1]
%tmp.145 = and int %tmp.144, 8192 ; <int> [#uses=1]
%tmp.146 = setne int %tmp.145, 0 ; <bool> [#uses=1]
br bool %tmp.146, label %then.9, label %else.26
then.9: ; preds = %else.0
br label %loopentry.3
else.26: ; preds = %else.1
switch uint 0, label %loopentry.0 [
uint 2, label %yy_find_action
uint 0, label %loopexit.2
]
}