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| ; RUN: opt < %s -simplifycfg -S | not grep bb17
; PR1786
define i32 @main() {
entry:
%retval = alloca i32, align 4 ; <i32*> [#uses=1]
%i = alloca i32, align 4 ; <i32*> [#uses=7]
%z = alloca i32, align 4 ; <i32*> [#uses=4]
%z16 = alloca i32, align 4 ; <i32*> [#uses=4]
%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
store i32 0, i32* %i
%toBool = icmp ne i8 1, 0 ; <i1> [#uses=1]
br i1 %toBool, label %cond_true, label %cond_false
cond_true: ; preds = %entry
store i32 0, i32* %z
br label %bb
bb: ; preds = %cond_next, %cond_true
%tmp = load i32, i32* %z ; <i32> [#uses=1]
%tmp1 = sub i32 %tmp, 16384 ; <i32> [#uses=1]
store i32 %tmp1, i32* %z
%tmp2 = load i32, i32* %i ; <i32> [#uses=1]
%tmp3 = add i32 %tmp2, 1 ; <i32> [#uses=1]
store i32 %tmp3, i32* %i
%tmp4 = load i32, i32* %i ; <i32> [#uses=1]
%tmp5 = icmp sgt i32 %tmp4, 262144 ; <i1> [#uses=1]
%tmp56 = zext i1 %tmp5 to i8 ; <i8> [#uses=1]
%toBool7 = icmp ne i8 %tmp56, 0 ; <i1> [#uses=1]
br i1 %toBool7, label %cond_true8, label %cond_next
cond_true8: ; preds = %bb
call void @abort( )
unreachable
cond_next: ; preds = %bb
%tmp9 = load i32, i32* %z ; <i32> [#uses=1]
%tmp10 = icmp ne i32 %tmp9, 0 ; <i1> [#uses=1]
%tmp1011 = zext i1 %tmp10 to i8 ; <i8> [#uses=1]
%toBool12 = icmp ne i8 %tmp1011, 0 ; <i1> [#uses=1]
br i1 %toBool12, label %bb, label %bb13
bb13: ; preds = %cond_next
call void @exit( i32 0 )
unreachable
cond_false: ; preds = %entry
%toBool14 = icmp ne i8 1, 0 ; <i1> [#uses=1]
br i1 %toBool14, label %cond_true15, label %cond_false33
cond_true15: ; preds = %cond_false
store i32 0, i32* %z16
br label %bb17
bb17: ; preds = %cond_next27, %cond_true15
%tmp18 = load i32, i32* %z16 ; <i32> [#uses=1]
%tmp19 = sub i32 %tmp18, 16384 ; <i32> [#uses=1]
store i32 %tmp19, i32* %z16
%tmp20 = load i32, i32* %i ; <i32> [#uses=1]
%tmp21 = add i32 %tmp20, 1 ; <i32> [#uses=1]
store i32 %tmp21, i32* %i
%tmp22 = load i32, i32* %i ; <i32> [#uses=1]
%tmp23 = icmp sgt i32 %tmp22, 262144 ; <i1> [#uses=1]
%tmp2324 = zext i1 %tmp23 to i8 ; <i8> [#uses=1]
%toBool25 = icmp ne i8 %tmp2324, 0 ; <i1> [#uses=1]
br i1 %toBool25, label %cond_true26, label %cond_next27
cond_true26: ; preds = %bb17
call void @abort( )
unreachable
cond_next27: ; preds = %bb17
%tmp28 = load i32, i32* %z16 ; <i32> [#uses=1]
%tmp29 = icmp ne i32 %tmp28, 0 ; <i1> [#uses=1]
%tmp2930 = zext i1 %tmp29 to i8 ; <i8> [#uses=1]
%toBool31 = icmp ne i8 %tmp2930, 0 ; <i1> [#uses=1]
br i1 %toBool31, label %bb17, label %bb32
bb32: ; preds = %cond_next27
call void @exit( i32 0 )
unreachable
cond_false33: ; preds = %cond_false
call void @exit( i32 0 )
unreachable
cond_next34: ; No predecessors!
br label %cond_next35
cond_next35: ; preds = %cond_next34
br label %return
return: ; preds = %cond_next35
%retval36 = load i32, i32* %retval ; <i32> [#uses=1]
ret i32 %retval36
}
declare void @abort()
declare void @exit(i32)
|