1 ; RUN: opt < %s -loop-reduce -S | grep phi | count 2 2 ; PR 2779 3 @g_19 = common global i32 0 ; <i32*> [#uses=3] 4 @"\01LC" = internal constant [4 x i8] c"%d\0A\00" ; <[4 x i8]*> [#uses=1] 5 6 define i32 @func_8(i8 zeroext %p_9) nounwind { 7 entry: 8 ret i32 1 9 } 10 11 define i32 @func_3(i8 signext %p_5) nounwind { 12 entry: 13 ret i32 1 14 } 15 16 define void @func_1() nounwind { 17 entry: 18 br label %bb 19 20 bb: ; preds = %bb, %entry 21 %indvar = phi i16 [ 0, %entry ], [ %indvar.next, %bb ] ; <i16> [#uses=2] 22 %tmp = sub i16 0, %indvar ; <i16> [#uses=1] 23 %tmp27 = trunc i16 %tmp to i8 ; <i8> [#uses=1] 24 load i32* @g_19, align 4 ; <i32>:0 [#uses=2] 25 add i32 %0, 1 ; <i32>:1 [#uses=1] 26 store i32 %1, i32* @g_19, align 4 27 trunc i32 %0 to i8 ; <i8>:2 [#uses=1] 28 tail call i32 @func_8( i8 zeroext %2 ) nounwind ; <i32>:3 [#uses=0] 29 shl i8 %tmp27, 2 ; <i8>:4 [#uses=1] 30 add i8 %4, -112 ; <i8>:5 [#uses=1] 31 tail call i32 @func_3( i8 signext %5 ) nounwind ; <i32>:6 [#uses=0] 32 %indvar.next = add i16 %indvar, 1 ; <i16> [#uses=2] 33 %exitcond = icmp eq i16 %indvar.next, -28 ; <i1> [#uses=1] 34 br i1 %exitcond, label %return, label %bb 35 36 return: ; preds = %bb 37 ret void 38 } 39 40 define i32 @main() nounwind { 41 entry: 42 tail call void @func_1( ) nounwind 43 load i32* @g_19, align 4 ; <i32>:0 [#uses=1] 44 tail call i32 (i8*, ...)* @printf( i8* getelementptr ([4 x i8]* @"\01LC", i32 0, i32 0), i32 %0 ) nounwind ; <i32>:1 [#uses=0] 45 ret i32 0 46 } 47 48 declare i32 @printf(i8*, ...) nounwind 49
