llvm/test/Transforms/SimplifyCFG/2005-12-03-IncorrectPHIFold.ll
Dan Gohman f2f6ce65b7 Change tests from "opt %s" to "opt < %s" so that opt doesn't see the
input filename so that opt doesn't print the input filename in the
output so that grep lines in the tests don't unintentionally match
strings in the input filename.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81537 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-11 18:01:28 +00:00

125 lines
5.8 KiB
LLVM

; Make sure this doesn't turn into an infinite loop
; RUN: opt < %s -simplifycfg -constprop -simplifycfg |\
; RUN: llvm-dis | grep bb86
; END.
%struct.anon = type { i32, i32, i32, i32, [1024 x i8] }
@_zero_ = external global %struct.anon* ; <%struct.anon**> [#uses=2]
@_one_ = external global %struct.anon* ; <%struct.anon**> [#uses=4]
@str = internal constant [4 x i8] c"%d\0A\00" ; <[4 x i8]*> [#uses=0]
declare i32 @bc_compare(%struct.anon*, %struct.anon*)
declare void @free_num(%struct.anon**)
declare %struct.anon* @copy_num(%struct.anon*)
declare void @init_num(%struct.anon**)
declare %struct.anon* @new_num(i32, i32)
declare void @int2num(%struct.anon**, i32)
declare void @bc_multiply(%struct.anon*, %struct.anon*, %struct.anon**, i32)
declare void @bc_raise(%struct.anon*, %struct.anon*, %struct.anon**, i32)
declare i32 @bc_divide(%struct.anon*, %struct.anon*, %struct.anon**, i32)
declare void @bc_add(%struct.anon*, %struct.anon*, %struct.anon**)
declare i32 @_do_compare(%struct.anon*, %struct.anon*, i32, i32)
declare i32 @printf(i8*, ...)
define i32 @bc_sqrt(%struct.anon** %num, i32 %scale) {
entry:
%guess = alloca %struct.anon* ; <%struct.anon**> [#uses=7]
%guess1 = alloca %struct.anon* ; <%struct.anon**> [#uses=7]
%point5 = alloca %struct.anon* ; <%struct.anon**> [#uses=3]
%tmp = load %struct.anon** %num ; <%struct.anon*> [#uses=1]
%tmp1 = load %struct.anon** @_zero_ ; <%struct.anon*> [#uses=1]
%tmp.upgrd.1 = call i32 @bc_compare( %struct.anon* %tmp, %struct.anon* %tmp1 ) ; <i32> [#uses=2]
%tmp.upgrd.2 = icmp slt i32 %tmp.upgrd.1, 0 ; <i1> [#uses=1]
br i1 %tmp.upgrd.2, label %cond_true, label %cond_false
cond_true: ; preds = %entry
ret i32 0
cond_false: ; preds = %entry
%tmp5 = icmp eq i32 %tmp.upgrd.1, 0 ; <i1> [#uses=1]
br i1 %tmp5, label %cond_true6, label %cond_next13
cond_true6: ; preds = %cond_false
call void @free_num( %struct.anon** %num )
%tmp8 = load %struct.anon** @_zero_ ; <%struct.anon*> [#uses=1]
%tmp9 = call %struct.anon* @copy_num( %struct.anon* %tmp8 ) ; <%struct.anon*> [#uses=1]
store %struct.anon* %tmp9, %struct.anon** %num
ret i32 1
cond_next13: ; preds = %cond_false
%tmp15 = load %struct.anon** %num ; <%struct.anon*> [#uses=1]
%tmp16 = load %struct.anon** @_one_ ; <%struct.anon*> [#uses=1]
%tmp17 = call i32 @bc_compare( %struct.anon* %tmp15, %struct.anon* %tmp16 ) ; <i32> [#uses=2]
%tmp19 = icmp eq i32 %tmp17, 0 ; <i1> [#uses=1]
br i1 %tmp19, label %cond_true20, label %cond_next27
cond_true20: ; preds = %cond_next13
call void @free_num( %struct.anon** %num )
%tmp22 = load %struct.anon** @_one_ ; <%struct.anon*> [#uses=1]
%tmp23 = call %struct.anon* @copy_num( %struct.anon* %tmp22 ) ; <%struct.anon*> [#uses=1]
store %struct.anon* %tmp23, %struct.anon** %num
ret i32 1
cond_next27: ; preds = %cond_next13
%tmp29 = load %struct.anon** %num ; <%struct.anon*> [#uses=1]
%tmp30 = getelementptr %struct.anon* %tmp29, i32 0, i32 2 ; <i32*> [#uses=1]
%tmp31 = load i32* %tmp30 ; <i32> [#uses=2]
%tmp33 = icmp sge i32 %tmp31, %scale ; <i1> [#uses=1]
%max = select i1 %tmp33, i32 %tmp31, i32 %scale ; <i32> [#uses=4]
%tmp35 = add i32 %max, 2 ; <i32> [#uses=0]
call void @init_num( %struct.anon** %guess )
call void @init_num( %struct.anon** %guess1 )
%tmp36 = call %struct.anon* @new_num( i32 1, i32 1 ) ; <%struct.anon*> [#uses=2]
store %struct.anon* %tmp36, %struct.anon** %point5
%tmp.upgrd.3 = getelementptr %struct.anon* %tmp36, i32 0, i32 4, i32 1 ; <i8*> [#uses=1]
store i8 5, i8* %tmp.upgrd.3
%tmp39 = icmp slt i32 %tmp17, 0 ; <i1> [#uses=1]
br i1 %tmp39, label %cond_true40, label %cond_false43
cond_true40: ; preds = %cond_next27
%tmp41 = load %struct.anon** @_one_ ; <%struct.anon*> [#uses=1]
%tmp42 = call %struct.anon* @copy_num( %struct.anon* %tmp41 ) ; <%struct.anon*> [#uses=1]
store %struct.anon* %tmp42, %struct.anon** %guess
br label %bb80.outer
cond_false43: ; preds = %cond_next27
call void @int2num( %struct.anon** %guess, i32 10 )
%tmp45 = load %struct.anon** %num ; <%struct.anon*> [#uses=1]
%tmp46 = getelementptr %struct.anon* %tmp45, i32 0, i32 1 ; <i32*> [#uses=1]
%tmp47 = load i32* %tmp46 ; <i32> [#uses=1]
call void @int2num( %struct.anon** %guess1, i32 %tmp47 )
%tmp48 = load %struct.anon** %guess1 ; <%struct.anon*> [#uses=1]
%tmp49 = load %struct.anon** %point5 ; <%struct.anon*> [#uses=1]
call void @bc_multiply( %struct.anon* %tmp48, %struct.anon* %tmp49, %struct.anon** %guess1, i32 %max )
%tmp51 = load %struct.anon** %guess1 ; <%struct.anon*> [#uses=1]
%tmp52 = getelementptr %struct.anon* %tmp51, i32 0, i32 2 ; <i32*> [#uses=1]
store i32 0, i32* %tmp52
%tmp53 = load %struct.anon** %guess ; <%struct.anon*> [#uses=1]
%tmp54 = load %struct.anon** %guess1 ; <%struct.anon*> [#uses=1]
call void @bc_raise( %struct.anon* %tmp53, %struct.anon* %tmp54, %struct.anon** %guess, i32 %max )
br label %bb80.outer
bb80.outer: ; preds = %cond_true83, %cond_false43, %cond_true40
%done.1.ph = phi i32 [ 1, %cond_true83 ], [ 0, %cond_true40 ], [ 0, %cond_false43 ] ; <i32> [#uses=1]
br label %bb80
bb80: ; preds = %cond_true83, %bb80.outer
%tmp82 = icmp eq i32 %done.1.ph, 0 ; <i1> [#uses=1]
br i1 %tmp82, label %cond_true83, label %bb86
cond_true83: ; preds = %bb80
%tmp71 = call i32 @_do_compare( %struct.anon* null, %struct.anon* null, i32 0, i32 1 ) ; <i32> [#uses=1]
%tmp76 = icmp eq i32 %tmp71, 0 ; <i1> [#uses=1]
br i1 %tmp76, label %bb80.outer, label %bb80
bb86: ; preds = %bb80
call void @free_num( %struct.anon** %num )
%tmp88 = load %struct.anon** %guess ; <%struct.anon*> [#uses=1]
%tmp89 = load %struct.anon** @_one_ ; <%struct.anon*> [#uses=1]
%tmp92 = call i32 @bc_divide( %struct.anon* %tmp88, %struct.anon* %tmp89, %struct.anon** %num, i32 %max ) ; <i32> [#uses=0]
call void @free_num( %struct.anon** %guess )
call void @free_num( %struct.anon** %guess1 )
call void @free_num( %struct.anon** %point5 )
ret i32 1
}