xref: /aosp_15_r20/external/llvm/test/Transforms/IndVarSimplify/2007-01-06-TripCount.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; PR1015
2*9880d681SAndroid Build Coastguard Worker; RUN: opt < %s -indvars -S | not grep "ret i32 0"
3*9880d681SAndroid Build Coastguard Worker
4*9880d681SAndroid Build Coastguard Workertarget datalayout = "e-p:32:32"
5*9880d681SAndroid Build Coastguard Workertarget triple = "i686-apple-darwin8"
6*9880d681SAndroid Build Coastguard Worker@foo = internal constant [5 x i8] c"\00abc\00"		; <[5 x i8]*> [#uses=1]
7*9880d681SAndroid Build Coastguard Worker@str = internal constant [4 x i8] c"%d\0A\00"		; <[4 x i8]*> [#uses=1]
8*9880d681SAndroid Build Coastguard Worker
9*9880d681SAndroid Build Coastguard Worker
10*9880d681SAndroid Build Coastguard Workerdefine i32 @test(i32 %J) {
11*9880d681SAndroid Build Coastguard Workerentry:
12*9880d681SAndroid Build Coastguard Worker	br label %bb2
13*9880d681SAndroid Build Coastguard Worker
14*9880d681SAndroid Build Coastguard Workerbb:		; preds = %cond_next, %cond_true
15*9880d681SAndroid Build Coastguard Worker	%tmp1 = add i32 %i.0, 1		; <i32> [#uses=1]
16*9880d681SAndroid Build Coastguard Worker	br label %bb2
17*9880d681SAndroid Build Coastguard Worker
18*9880d681SAndroid Build Coastguard Workerbb2:		; preds = %bb, %entry
19*9880d681SAndroid Build Coastguard Worker	%i.0 = phi i32 [ 0, %entry ], [ %tmp1, %bb ]		; <i32> [#uses=4]
20*9880d681SAndroid Build Coastguard Worker	%tmp = icmp eq i32 %i.0, 0		; <i1> [#uses=1]
21*9880d681SAndroid Build Coastguard Worker	br i1 %tmp, label %cond_true, label %cond_next
22*9880d681SAndroid Build Coastguard Worker
23*9880d681SAndroid Build Coastguard Workercond_true:		; preds = %bb2
24*9880d681SAndroid Build Coastguard Worker	br label %bb
25*9880d681SAndroid Build Coastguard Worker
26*9880d681SAndroid Build Coastguard Workercond_next:		; preds = %bb2
27*9880d681SAndroid Build Coastguard Worker	%tmp2 = getelementptr [5 x i8], [5 x i8]* @foo, i32 0, i32 %i.0		; <i8*> [#uses=1]
28*9880d681SAndroid Build Coastguard Worker	%tmp3 = load i8, i8* %tmp2		; <i8> [#uses=1]
29*9880d681SAndroid Build Coastguard Worker	%tmp5 = icmp eq i8 %tmp3, 0		; <i1> [#uses=1]
30*9880d681SAndroid Build Coastguard Worker	br i1 %tmp5, label %bb6, label %bb
31*9880d681SAndroid Build Coastguard Worker
32*9880d681SAndroid Build Coastguard Workerbb6:		; preds = %cond_next
33*9880d681SAndroid Build Coastguard Worker	br label %return
34*9880d681SAndroid Build Coastguard Worker
35*9880d681SAndroid Build Coastguard Workerreturn:		; preds = %bb6
36*9880d681SAndroid Build Coastguard Worker	ret i32 %i.0
37*9880d681SAndroid Build Coastguard Worker}
38*9880d681SAndroid Build Coastguard Worker
39